KR102756716B1 - Electornic device wirelessly receiving power and method for operating tehreof - Google Patents

Abstract

According to various embodiments, an electronic device is provided, including at least one coil, at least one sensor, and at least one processor, wherein the at least one processor is configured to request identification information of the wireless power transmission device from a wireless power transmission device, and if the identification information is not received from the wireless power transmission device, to determine a characteristic value of the wireless power transmission device based on the at least one sensor, to determine the wireless power transmission device corresponding to the determined characteristic value, to determine a first value for a foreign substance detection operation corresponding to the determined wireless power transmission device, and to control the at least one communication circuit to transmit information on the magnitude of wireless power received from the wireless power transmission device to which the determined first value is reflected, to the wireless power transmission device. Various other embodiments are possible.

Description

{ELECTORNIC DEVICE WIRELESSLY RECEIVING POWER AND METHOD FOR OPERATING TEHREOF}

Various embodiments of the present disclosure relate to electronic devices for receiving power wirelessly and methods of operating the same.

Portable digital communication devices have become an essential element for many people living in the modern era. Consumers want to receive various high-quality services they want anytime and anywhere. In addition, due to the recent IoT (Internet of Things), various sensors, home appliances, and communication devices in our lives are being networked as one. In order to operate these various sensors smoothly, a wireless power transmission system is required.

Wireless power transmission can be done using magnetic induction, magnetic resonance, and electromagnetic wave methods. Magnetic induction or magnetic resonance methods are advantageous for charging electronic devices located relatively close to the wireless power transmission device. The electromagnetic wave method is more advantageous for long-distance power transmission of up to several meters than magnetic induction or magnetic resonance methods. The electromagnetic wave method is mainly used for long-distance power transmission, and can transmit power most efficiently by identifying the exact location of a power receiver located at a distance.

The wireless power transmission device can perform a foreign object detection (FOD) operation and stop the wireless charging operation if a foreign object is detected. The wireless power transmission device receives the size of the received power reflecting the offset value for the foreign object detection operation from the charging target device and can perform the foreign object detection operation based on this.

When a wireless charging operation is performed in a state where a foreign substance is placed between a wireless power transmission device and a target device for charging (e.g., an abnormal state), the electronic device may not be able to provide the wireless power transmission device with an amount of received power that reflects an appropriate offset value for the wireless power transmission device to successfully detect the foreign substance. For example, the communication state between the wireless power transmission device and the target device for charging is not smooth due to the foreign substance, so that the identification information of the wireless power transmission device is not transmitted to the target device for charging, or the wireless power transmission device is an unregistered device (e.g., a device without identification information or with unregistered identification information), and thus the electronic device may not be able to confirm the offset value for the wireless power transmission device to successfully detect the foreign substance, and thus the wireless charging operation may not be interrupted due to successful detection of the foreign substance. Accordingly, various problems (e.g., overheating, etc.) may occur due to the continuous wireless charging operation in the presence of the foreign substance.

An electronic device according to various embodiments can check a characteristic value of a wireless power transmission device and provide a size of received power to which an offset value corresponding thereto is reflected to the wireless power transmission device so that a foreign substance detection operation can be successfully performed. An electronic device according to various embodiments can manage and update an offset value for each group of wireless power transmission devices so as to improve the success rate and efficiency of a foreign substance detection operation.

According to various embodiments, an electronic device may be provided, including at least one coil, at least one sensor, and at least one processor, wherein the at least one processor is configured to request identification information of the wireless power transmission device from a wireless power transmission device, and if the identification information is not received from the wireless power transmission device, control the at least one communication circuit to determine a characteristic value of the wireless power transmission device based on the at least one sensor, determine the wireless power transmission device corresponding to the determined characteristic value, determine a first value for a foreign substance detection operation corresponding to the determined wireless power transmission device, and control the at least one communication circuit to transmit information on the magnitude of wireless power received from the wireless power transmission device to which the determined first value is reflected, to the wireless power transmission device.

According to various embodiments, an electronic device may be provided, including a memory, at least one power receiving coil, and at least one processor, wherein the at least one processor is configured to receive a first wireless power from a wireless power transmission device using the at least one power receiving coil, compare a reference value related to a second wireless power received in a normal state pre-stored in the memory with a value related to the received first wireless power, and adjust a first value corresponding to the first wireless power pre-stored in the memory for a foreign substance detection operation based on a result of the comparison, and control the at least one communication circuit to transmit information about the magnitude of the first wireless power in which the adjusted first value is reflected to the wireless power transmission device.

According to various embodiments, an electronic device may be provided, including a memory, at least one power receiving coil, and at least one processor, wherein the at least one processor controls the electronic device to receive first wireless power from a wireless power transmission device using the at least one power receiving coil, compares a first difference value between a first temperature value of a first part and a second temperature value of a second part by wireless power received in a normal state, which are stored in advance in the memory, with a second difference value between a third temperature value of the first part and a fourth temperature value of the second part by reception of the first wireless power, and adjusts a first value for a foreign matter detection operation when the second difference value exceeds the first difference value as a result of the comparison, and controls the at least one communication circuit to transmit information about the magnitude of the first wireless power reflected by the adjusted first value to the wireless power transmission device.

According to various embodiments, the means for solving the problem are not limited to the above-described means, and the means for solving the problem that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present invention pertains from this specification and the attached drawings.

According to various embodiments, an electronic device may be provided that verifies a characteristic value of a wireless power transmitter and provides a size of a reception power in which an offset value corresponding thereto is reflected to a wireless power transmitter so that a foreign matter detection operation is successfully performed. An electronic device may be provided that manages and updates offset values for each group of wireless power transmitters so as to improve the success rate and efficiency of a foreign matter detection operation according to various embodiments.

FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.
FIG. 2 illustrates a block diagram of a wireless power transmission device and an electronic device according to various embodiments.
FIG. 3A illustrates a wireless power transmission device and an electronic device according to various embodiments.
FIG. 3b illustrates a wireless power transmission device and an electronic device according to various embodiments.
FIG. 3c illustrates a detailed block diagram of a power transmission circuit and a power reception circuit according to various embodiments.
FIG. 4 is a flowchart illustrating an example of an operation for checking an offset value of an electronic device according to various embodiments and inducing a foreign substance detection operation of a wireless power transmission device.
FIG. 5 is a diagram for explaining an example of an operation for checking an offset value of an electronic device according to various embodiments and inducing a foreign substance detection operation of a wireless power transmission device.
FIG. 6 is a flowchart illustrating an example of the operation of an electronic device and a wireless power transmission device according to various embodiments.
FIG. 7 is a diagram for explaining an example of the operation of an electronic device and a wireless power transmission device according to various embodiments.
FIG. 8 is a flowchart illustrating an example of an operation of identifying a group including a wireless power transmission device of an electronic device according to various embodiments and providing a value assigned to the identified group.
FIG. 9 is a diagram illustrating an example of an operation of identifying a group including a wireless power transmission device of an electronic device according to various embodiments and providing a value assigned to the identified group.
FIG. 10 is a flowchart illustrating an example of an operation for adjusting a default value for a foreign substance detection operation of an electronic device to another value according to various embodiments.
FIG. 11 is a drawing for explaining an example of an operation of adjusting a default value for a foreign substance detection operation of an electronic device to a different value according to various embodiments.
FIG. 12 is a flowchart illustrating an example of an operation for checking an abnormal state of an electronic device according to various embodiments.
FIG. 13 is a drawing for explaining an example of an operation for checking an abnormal state of an electronic device according to various embodiments.
FIG. 14 is a flowchart illustrating an example of an operation of comparing a value related to currently received wireless power of an electronic device with a value related to wireless power received in a normal state according to various embodiments.
FIG. 15 is a diagram illustrating an example of an operation of comparing a value related to currently received wireless power of an electronic device with a value related to wireless power received in a normal state according to various embodiments.
FIG. 16 is a diagram illustrating an example of an operation for updating a first value by group of an electronic device according to various embodiments.
FIG. 17 is a drawing for explaining an example of an operation of displaying a screen for requesting foreign substance confirmation of an electronic device according to various embodiments.
FIG. 18 is a flowchart illustrating an example of an operation of comparing a temperature value by wireless power currently received by an electronic device with a temperature value by wireless power received in a normal state according to various embodiments.
FIG. 19 is a drawing for explaining an example of an operation of comparing a temperature value by wireless power currently received by an electronic device with a temperature value by wireless power received in a normal state.

FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with the electronic device (102) through a first network (198) (e.g., a short-range wireless communication network), or may communicate with the electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input device (150), an audio output device (155), a display device (160), an audio module (170), a sensor module (176), an interface (177), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the display device (160) or the camera module (180)), or may include one or more other components. In some embodiments, some of these components may be implemented as a single integrated circuit. For example, a sensor module (176) (e.g., a fingerprint sensor, an iris sensor, or a light sensor) may be implemented embedded in a display device (160) (e.g., a display).

The processor (120) may control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing, for example, software (e.g., a program (140)), and may perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may load a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) into the volatile memory (132), process the command or data stored in the volatile memory (132), and store the resulting data in the nonvolatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor), and a secondary processor (123) (e.g., a graphic processing unit, an image signal processor, a sensor hub processor, or a communication processor) that may operate independently or together therewith. Additionally or alternatively, the auxiliary processor (123) may be configured to use less power than the main processor (121), or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121), or as a part thereof.

The auxiliary processor (123) may control at least a portion of functions or states associated with at least one of the components of the electronic device (101) (e.g., the display device (160), the sensor module (176), or the communication module (190)), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)).

The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or nonvolatile memory (134).

The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

The input device (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., processor (120)) from an external source (e.g., a user) of the electronic device (101). The input device (150) can include, for example, a microphone, a mouse, a keyboard, or a digital pen (e.g., a stylus pen).

The audio output device (155) can output an audio signal to the outside of the electronic device (101). The audio output device (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive an incoming call. According to one embodiment, the receiver can be implemented separately from the speaker or as a part thereof.

The display device (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display device (160) can include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display device (160) can include touch circuitry configured to detect a touch, or a sensor circuitry configured to measure a strength of a force generated by the touch (e.g., a pressure sensor).

The audio module (170) can convert sound into an electric signal, or vice versa, convert an electric signal into sound. According to one embodiment, the audio module (170) can obtain sound through an input device (150), or output sound through an audio output device (155), or an external electronic device (e.g., an electronic device (102)) (e.g., a speaker or a headphone) directly or wirelessly connected to the electronic device (101).

The sensor module (176) can detect an operating state (e.g., power or temperature) of the electronic device (101) or an external environmental state (e.g., user state) and generate an electric signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) to an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., the electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that a user can perceive through a tactile or kinesthetic sense. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module (180) can capture still images and moving images. According to one embodiment, the camera module (180) can include one or more lenses, image sensors, image signal processors, or flashes.

The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (388) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

The communication module (190) may support establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., the electronic device (102), the electronic device (104), or the server (108)), and performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., the application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). A corresponding communication module among these communication modules can communicate with an external electronic device via a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify and authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one embodiment, the antenna module can include one antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) can include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), can be selected from the plurality of antennas by, for example, the communication module (190). A signal or power can be transmitted or received between the communication module (190) and the external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, another component (e.g., an RFIC) can be additionally formed as a part of the antenna module (197).

At least some of the above components may be connected to each other and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, a general purpose input and output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)).

In one embodiment, a command or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the electronic devices (102, 104) may be the same or a different type of device as the electronic device (101). In one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of executing the function or service itself or in addition, request one or more external electronic devices to perform at least a part of the function or service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

Electronic devices according to various embodiments disclosed in this document may be devices of various forms. The electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliance devices. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to encompass various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B," "at least one of A and B," "at least one of A or B," "A, B, or C," "at least one of A, B, and C," and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish the corresponding component from other corresponding components, and do not limit the corresponding components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

The term "module" as used in this document may include a unit implemented in hardware, software or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., the electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the called at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, ‘non-transitory’ simply means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded between a seller and a buyer as a commodity. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play StoreTM) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a part of the computer program product may be at least temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory of a manufacturer's server, a server of an application store, or an intermediary server.

According to various embodiments, each component (e.g., a module or a program) of the above-described components may include a single or multiple entities. According to various embodiments, one or more of the components or operations of the above-described components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the components of the plurality of components identically or similarly to those performed by the corresponding component of the plurality of components prior to the integration. According to various embodiments, the operations performed by the module, program or other component may be executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Below, an example of an electronic device and its operating method according to various embodiments is described.

The operation of the electronic device (101) described below is described as being controlled by the processor (120) to perform the corresponding operation using at least one component of the electronic device (101), but may not be limited thereto. For example, instructions or computer codes that cause the operation of the electronic device (101) described below may be stored in the memory (130). The stored instructions or computer codes may cause the processor (120) to process the corresponding operation using at least one component included in the electronic device (101).

The electronic device described below may be a wireless power receiving device that receives wireless power from a wireless power transmitting device.

FIG. 2 illustrates a block diagram of a wireless power transmission device and an electronic device according to various embodiments.

Referring to FIG. 2, a wireless power transmission device (200) according to various embodiments can wirelessly transmit power (261) to an electronic device (250). Here, the electronic device (250) may mean the electronic device (101) described above. In addition, the electronic device (250) described below may be interpreted as a wireless power reception device that receives wireless power from the wireless power transmission device (200). The wireless power transmission device (200) may transmit power (261) to the electronic device (250) according to various charging methods.

According to various embodiments, the wireless power transmitter (200) may transmit power (261) according to an inductive method. When the wireless power transmitter (200) uses an inductive method, the wireless power transmitter (200) may include, for example, a power source, a DC-AC converter circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one coil, a communication modulation/demodulation circuit, etc. The at least one capacitor may form a resonant circuit together with the at least one coil. The wireless power transmitter (200) may be implemented in a manner defined in the WPC (Wireless Power Consortium) standard (or, Qi standard). The electronic device (250) that receives power wirelessly may include a receiving coil, at least one capacitor, an impedance matching circuit, a rectifier, a DC-DC converter, a charger, a battery, a communication modulation/demodulation circuit, etc.

According to various embodiments, the wireless power transmitter (200) may transmit power (261) according to a resonance method. In the case of the resonance method, the wireless power transmitter (200) may include, for example, a power source, a DC-AC conversion circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one coil, an out-of-band communication circuit (e.g., a BLE (Bluetooth Low Energy) communication circuit), etc. At least one capacitor and at least one coil may constitute a resonance circuit. The wireless power transmitter (200) may be implemented in a manner defined in the A4WP (Alliance for Wireless Power) standard (or, AFA (air fuel alliance) standard). The wireless power transmitter (200) may include a coil that may generate an induced magnetic field when a current flows according to the resonance method or the induction method. The process in which the wireless power transmitter (200) generates an induced magnetic field may be expressed as the wireless power transmitter (200) wirelessly transmitting power (261). In addition, the electronic device (250) may include a coil that generates an induced electromotive force by a magnetic field that changes in size over time formed in the surroundings. The process of generating the induced electromotive force through the coil may be expressed as the electronic device (250) wirelessly receiving power (261). The electronic device (250) may include a receiving coil, at least one capacitor, an impedance matching circuit, a rectifier, a DC-DC converter, a charger, a battery, an out-of-band communication circuit, and the like.

According to various embodiments, the wireless power transmission device (200) may transmit power (261) according to an RF method. In the case of a resonance method, the wireless power transmission device (200) may include, for example, a power source, a DC-AC conversion circuit, a plurality of antennas, a plurality of amplifiers corresponding to the plurality of antennas, a plurality of phase shifters corresponding to the plurality of antennas, an out-of-band communication circuit (e.g., a BLE (Bluetooth Low Energy) communication circuit), etc. The wireless power transmission device (200) may form an RF wave based on a position of the electronic device (250). For example, the wireless power transmission device (200) may form a beam-formed RF wave by controlling at least one of the phase shifter or the amplifier.

The wireless power transmission device (200) may include a coil that can generate an induced magnetic field when a current flows according to a resonance method or an induction method. The process of the wireless power transmission device (200) generating an induced magnetic field may be expressed as the wireless power transmission device (200) wirelessly transmitting power (261). Alternatively, the wireless power transmission device (200) may form a beam-formed RF wave according to an RF method, and this process may be expressed as the wireless power transmission device (200) wirelessly transmitting power (261).

In addition, the electronic device (250) may include a coil that generates an induced electromotive force by a magnetic field that changes in size over time formed in the surroundings. Alternatively, the electronic device (250) may pick up an RF wave formed in the surroundings. The above-described processes may be expressed as the electronic device (250) wirelessly receiving power (261).

The wireless power transmission device (200) according to various embodiments of the present invention can perform communication with the electronic device (250). For example, the wireless power transmission device (200) can perform communication with the electronic device (250) according to the in-band method. The wireless power transmission device (200) or the electronic device (250) can change the load (or impedance) of data to be transmitted according to, for example, an on/off keying modulation method. The wireless power transmission device (200) or the electronic device (250) can determine data to be transmitted from the counterpart device by measuring the load change (or impedance change) based on the change in the size of the current, voltage, or power of the coil. For example, the wireless power transmission device (200) can perform communication with the electronic device (250) according to the out-band method. A wireless power transmitter (200) or electronic device (250) can transmit and receive data using a communication circuit (e.g., BLE communication module) provided separately from a coil or patch antenna.

In this document, when the wireless power transmission device (200) or the electronic device (250) performs a specific operation, it may mean that various hardware included in the wireless power transmission device (200) or the electronic device (250), for example, a control circuit such as a processor, a coil or a patch antenna, performs a specific operation. Alternatively, when the wireless power transmission device (200) or the electronic device (250) performs a specific operation, it may mean that the processor controls other hardware to perform a specific operation. Alternatively, when the wireless power transmission device (200) or the electronic device (250) performs a specific operation, it may mean that an instruction for performing a specific operation stored in a storage circuit (e.g., a memory) of the wireless power transmission device (200) or the electronic device (250) is executed, thereby causing the processor or other hardware to perform a specific operation.

FIG. 3A illustrates a wireless power transmission device (200) and an electronic device (250) according to various embodiments. Here, O1 to O5 are points where the electronic device (250) to be described later measures output power (Pout), and the measurement of the output power (Pout) will be described in detail later.

Referring to FIG. 3A, a wireless power transmission device (200) according to various embodiments may include at least one of a control circuit (202), a communication circuit (203), a memory (205), a power source (206), or a power transmission circuit (209). An electronic device (250) according to various embodiments may include at least one of a charger, a control circuit (252), a communication circuit (253), a battery (254), a memory (256), or a power reception circuit (259).

The power transmission circuit (209) according to various embodiments can wirelessly transmit power (261) according to at least one of an inductive method, a resonance method, and an electromagnetic wave method. The detailed configuration of the power transmission circuit (209) and the power reception circuit (259) will be described in more detail with reference to FIGS. 3A, 3B, and 3C. The control circuit (202) can control the overall operation of the wireless power transmission device (200). For example, the control circuit (202) can determine whether to transmit power (261), control the amount of power (261), or control at least one function of the electronic device (250) (for example, start of charging or stop of charging). The control circuit (202) or the control circuit (252) can be implemented with various circuits capable of performing operations, such as a general-purpose processor such as a CPU, a minicomputer, a microprocessor, an MCU (micro controlling unit), an FPGA (field programmable gate array), etc., and there is no limitation on the type thereof.

According to various embodiments, the wireless power transmission device (200) may be implemented as a device using an out-band communication method. For example, the control circuit (202) of the wireless power transmission device (200) may transmit and receive data (262) with the electronic device (250) through the communication circuit (203) as illustrated in FIG. 3A. The data may be used to control wireless power transmission and reception. The communication circuit (203) and the communication circuit (253) may be implemented as, for example, a communication circuit using an out-band communication method (e.g., a Bluetooth communication module or an NFC communication module). Accordingly, the electronic device (200) may also be implemented as a device using an out-band communication method. For example, the control circuit (252) of the electronic device (250) may transmit and receive data (262) with the wireless power transmission device (200) through the communication circuit (253) as illustrated in FIG. 3A.

Or, according to various embodiments, the wireless power transmission device (200) may be implemented as a device using an in-band communication method. For example, in the case of an in-band communication method, as illustrated in FIG. 3b, a separate communication circuit (203) is not provided, and the wireless power transmission device (200) may include a switch directly connected to the coil of the power transmission circuit (209) or through another element, and a dummy load (e.g., a dummy resistor or a dummy capacitor) directly connected to the coil or through another element via the switch. The control circuit (203) of the wireless power transmission device (200) may check data (262) based on a change in voltage or current applied to the coil in the power transmission circuit (209) detected during an on/off process of the switch. Accordingly, the electronic device (250) may also be implemented as a device using an in-band communication method. For example, in the case of an in-band communication method, a separate communication circuit (253) is not provided as illustrated in FIG. 3b, and the electronic device (250) may include a switch directly connected to the coil of the power receiving circuit (259) or through another element, and a dummy load (e.g., a dummy resistor or a dummy capacitor) directly connected to the coil or through another element via the switch. The control circuit (252) of the electronic device (250) may, similarly to the wireless power transmitter (200) described above, check data (262) based on a change in voltage or current applied to the coil in the power receiving circuit (259) detected during the on/off process of the switch.

The power receiving circuit (259) according to various embodiments may wirelessly receive power from the power transmitting circuit (209) according to at least one of an inductive method, a resonant method, and an electromagnetic wave method. The power receiving circuit (259) may perform power processing such as rectifying the received AC waveform power into a DC waveform, converting the voltage, or regulating the power. The charger (251) may charge the battery (254) using the received regulated power (e.g., DC power). The charger (251) may adjust at least one of the voltage or current of the received power and transmit it to the battery (254). Here, the charger (251) may be an IF PMIC (power management integrated circuit). The battery (254) may store power and transmit it to other hardware. Although not shown, a power management integrated circuit (PMIC) (not shown) may receive power from a power receiving circuit (259) and deliver it to other hardware, or may receive power from a battery (254) and deliver it to other hardware.

The control circuit (252) can control the overall operation of the electronic device (250). The memory (256) can store instructions for performing the overall operation of the electronic device (250). The memory (205) can store instructions for performing the overall operation of the wireless power transmission device (200), or a lookup table for the relationship between information acquired through the communication circuit (203) and the amount of power to be transmitted, or mathematical information for the relationship between the acquired information and the amount of power to be transmitted, etc. The memory (205) or the memory (256) can be implemented in various forms such as a ROM (read only memory), a RAM (random access memory), or a flash memory, and there is no limitation on the implementation form.

FIG. 3c illustrates a detailed block diagram of a power transmission circuit and a power reception circuit according to various embodiments.

In various embodiments, the power transmission circuit (209) may include a power adapter (211), a power generation circuit (212), a coil (213), and a matching circuit (214). The power adapter (211) may receive power from a power source (206) and provide power to the power generation circuit (212). The adapter (211) may be, for example, a power interface, and may not be included in the wireless power transmission device (200) depending on the implementation. The power generation circuit (212) may convert the received power into, for example, an AC waveform, and/or amplify the power and transmit it to the coil (213). The frequency of the AC waveform may be set to 100 to 205 kHz or 6.78 MHz, etc. depending on the standard, but is not limited thereto. The power generation circuit (212) may also include an inverter. For example, the inverter may be a full-bridge inverter or a half-bridge inverter, but is not limited in type. When power is applied to the coil (213), an induced magnetic field whose size changes over time may be formed from the coil (213), and thus power may be transmitted wirelessly. Although not illustrated, at least one capacitor forming a resonant circuit together with the coil (213) may be further included in the power transmission circuit (209). The matching circuit (214) may change at least one of the capacitance or reactance of a circuit connected to the coil (213) according to the control of the control circuit (202), thereby allowing the power transmission circuit (209) and the power reception circuit (259) to have impedance matching with each other. An induced electromotive force may be generated in the coil (221) of the power reception circuit (259) by a magnetic field whose size changes over time formed around it, and thus the power reception circuit (159) may receive power wirelessly. The rectifier circuit (222) may rectify power of a received AC waveform. The converting circuit (223) can adjust the voltage of the rectified power and transmit it to the PMIC or the charger. The power receiving circuit (259) may further include a regulator, or the converting circuit (223) may be replaced with a regulator. The matching circuit (224) can change at least one of the capacitance or reactance of the circuit connected to the coil (221) under the control of the control circuit (252), thereby allowing the power transmitting circuit (209) and the power receiving circuit (259) to be impedance matched to each other.

For convenience of explanation, in the following, as an example, the power transmission circuit (209) is described as a power transmission coil (209) and the power reception circuit (259) is described as a power reception coil (259).

Hereinafter, an example of an electronic device and its operation method according to various embodiments will be described. Meanwhile, in the following, redundant descriptions related to the operation of the above-described electronic device (250) will be omitted.

According to various embodiments, the electronic device (250) may identify specific information (e.g., FOD offset value) for a foreign object detection operation (FOD) of the wireless power transmission device (200) and cause the wireless power transmission to be interrupted by the foreign object detection operation (FOD) of the wireless power transmission device (200) based on the information.

According to various embodiments, the foreign substance (510) may be defined as an object that interferes with wireless charging between the electronic device (250) and the wireless power transmission device (200). In addition, the foreign substance (510) may be defined as an object positioned adjacent to an active area where wireless power that can be heated by wireless charging is exchanged. For example, when the electronic device (250) is placed on the housing of the wireless power transmission device (200), the foreign substance (510) may be an object positioned between the electronic device (250) and the wireless power reception device. The foreign substance (510) may be an object made of various materials, such as a plastic material object or a metal material object.

FIG. 4 is a flowchart (400) for explaining an example of an operation for checking an offset value of an electronic device according to various embodiments and for inducing a foreign substance detection operation of a wireless power transmission device. According to various embodiments, the operation of the electronic device (101) is not limited to the order of the operations of the electronic device (101) illustrated in FIG. 4, and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (101) illustrated in FIG. 4, or at least one operation may be performed less than the operations of the electronic device (101) illustrated in FIG. 4. Hereinafter, FIG. 4 will be described with reference to FIG. 5.

FIG. 5 is a diagram for explaining an example of an operation for checking an offset value of an electronic device according to various embodiments and inducing a foreign substance detection operation of a wireless power transmission device.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may initiate a wireless charging operation in operation 401. The electronic device (250) may be placed in a housing of the wireless power transmission device (200), as illustrated in 501 of FIG. 5 . The electronic device (250) may perform an initiation procedure for wireless charging with the wireless power transmission device (200) in order to receive wireless power from the wireless power transmission device (200) placed adjacently. In addition, the electronic device (250) may receive wireless power from the power transmission coil (209) of the wireless power transmission device (200) by using the power reception coil (259) from the wireless power transmission device (200) placed adjacently. In other words, operations 402 and 403 of the electronic device (250) described below may be performed before or after receiving the wireless power, and there is no limitation on the timing of the performance.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may determine a first value corresponding to a characteristic value (e.g., an EM value) of the wireless power transmission device (200) in operation 402.

According to various embodiments, the electronic device (250) may check the characteristic value of the wireless power transmission device (200) based on at least one sensor (520), as illustrated in 502 of FIG. 5. The operation of checking the characteristic value of the wireless power transmission device (200) based on at least one sensor (520) of the electronic device (250) may be a broad concept including an operation of the electronic device (250) checking a characteristic value corresponding to a received value based on a value received from at least one sensor (520) or an operation of obtaining a characteristic value analyzed by at least one sensor (520). In other words, the at least one sensor (520) may analyze the characteristic value of the wireless power transmission device (200) by itself and provide it to the processor, or may provide data (raw data) for analyzing the characteristic value to the processor. A specific operation of checking the characteristic value of the electronic device (250) will be described later with reference to FIGS. 7 and 8.

According to various embodiments, the first value may be defined as a reference value for a foreign substance detection operation. For example, in a situation where a foreign substance (510) exists, the first value may be a reference value for adjusting values (e.g., a value of the size of wireless power, a threshold value) used for detecting a foreign substance in the foreign substance detection operation so that the probability of detecting the foreign substance (510) by the foreign substance detection operation of the wireless power transmission device (200) may increase (in other words, the success rate of the detection operation of the foreign substance (510) may increase). That is, for example, the first value may be an offset value, a value for tuning the size of wireless power (hereinafter, “received power”) received by the electronic device (250), or a value for tuning the size of received power received by the wireless power transmission device (200) from the electronic device (250). For example, the first value may be transmitted to the wireless power transmission device (200) and may be a value referenced by the wireless power transmission device (200) to set a threshold value for a foreign substance detection operation.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may store a plurality of first values for a foreign substance detection operation of the plurality of wireless power transmission devices (200) for each of the plurality of wireless power transmission devices (200). That is, the electronic device (250) may identify the wireless power transmission device (200) based on a characteristic value of the wireless power transmission device (200) and check a first value corresponding to the identified wireless power transmission device (200) among the stored plurality of first values.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may transmit information about the size of the reception power in which the identified first value (e.g., the off set value) is reflected to the wireless power transmission device (200) in operation 403. Accordingly, the wireless power transmission device (200) may confirm the size of the wireless power (hereinafter, transmission power) transmitted to the wireless power reception device, and perform a foreign substance detection operation based on the confirmed size of the transmission power and the size of the reception power in which the first value received from the electronic device (250) is reflected in operation 403.

In addition, according to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may separately transmit information about the first value and the size of the received power. In this case, the wireless power transmission device (200) may perform a foreign substance detection operation based on the received first value, information about the size of the received power, and information about the size of the transmitted power.

The operation for confirming the size of the received power of the electronic device (250) and reflecting the first value and the specific foreign substance detection operation of the wireless power transmission device (200) are described later in FIGS. 7 and 8.

According to various embodiments, the electronic device (250) may transmit information to the wireless power transmission device (200) in an out-band or in-band manner. For example, the electronic device (250) may control a separately provided communication circuit (253) such as 503 of FIG. 5 to transmit information (513) to the wireless power transmission device (200) in an out-band manner. Accordingly, the wireless power reception device (200) may control the communication circuit (103) to receive the corresponding information. Also, for example, the electronic device (250) may transmit information to the wireless power transmission device (200) by turning on/off a switch connected to a resistor and/or a capacitor, although not shown in FIG. 5, in an in-band manner. Duplicate descriptions of communication in an out-band or in-band manner will be omitted.

As described above, the electronic device (250) identifies the wireless power transmission device (200) by using a sensor on its own, and provides the wireless power transmission device (200) with the magnitude of the received power by reflecting the offset value corresponding to the identified wireless power transmission device (200), so that the accuracy of the foreign substance detection operation of the wireless power transmission device (200) can be improved based on the offset value appropriately reflected in the magnitude of the received power.

Below, other examples of electronic devices and their operation methods according to various embodiments are described. Meanwhile, below, redundant descriptions related to the operation of the above-described electronic device (250) are omitted.

According to various embodiments, when the identification information of the wireless power receiving device is not confirmed, the electronic device checks the characteristic value of the wireless power receiving device and corresponds to the identified characteristic value.

FIG. 6 is a flowchart (600) for explaining an example of the operation of an electronic device (250) and a wireless power transmission device (200) according to various embodiments. According to various embodiments, the operation of the electronic device (250) is not limited to the order of the operation of the electronic device (250) illustrated in FIG. 6, and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (250) illustrated in FIG. 6, or at least one operation may be performed less than the operations of the electronic device (250) illustrated in FIG. 6. Hereinafter, FIG. 6 will be described with reference to FIG. 7.

FIG. 7 is a drawing for explaining an example of the operation of an electronic device (250) and a wireless power transmission device (200) according to various embodiments. “*” illustrated in FIG. 7 means all mathematical operations such as “multiplication, subtraction, division, or addition,” and may not be limited to a specific mathematical operation.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may initiate wireless charging in operation 601. Operation 601 of the electronic device (250) may be performed similarly to operation 401 of the electronic device (250) described above, and therefore, redundant description is omitted.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may request identification information of the wireless power transmission device (200) to the wireless power transmission device (200) in operation 602. In this case, the electronic device (250) may control at least one communication circuit (253) to transmit a message requesting identification information to the wireless power transmission device (200) in an out-band manner, as in 702 of FIG. 7. Accordingly, the wireless power transmission device (200) may control the communication circuit (203) to receive the requesting message. Alternatively, the electronic device (250) may control the wireless power receiving coil (259) in an in-band manner to request identification information from the wireless power transmission device (200).

According to various embodiments, the identification information may include various information for identifying the wireless power transmission device (200). The various information may include the TX-id of the wireless power transmission device (200), type information (e.g., information about the pad type of the wireless power transmission device (200)), and manufacturer information (e.g., information about a company that manufactures or sells the wireless power transmission device (200).

According to various embodiments, if the electronic device (250) (e.g., at least one processor (120)) does not receive identification information from the wireless power transmission device (200) in operation 603, it may request identification information from the wireless power transmission device (200) a specified number of times (n). If the electronic device (250) is placed on the wireless power transmission device (200) as in 701 of FIG. 7, the electronic device (250) may not be able to receive a communication message or a communication signal from the wireless power transmission device (200) due to a foreign substance (510) placed between the electronic device (250) and the wireless power reception device, thereby preventing smooth communication. Accordingly, the electronic device (250) may request identification information from the wireless power transmission device (200) a specified number of times in consideration of the poor communication condition so that it may receive identification information from the wireless power transmission device (200).

Alternatively, the electronic device (250) (e.g., at least one processor (120)) may perform operation 604 if the wireless power transmission device (200) corresponding to the received identification information is not identified even if the identification information is received from the wireless power transmission device (200) in operation 603. For example, the electronic device (250) may compare the received identification information with a plurality of identification information corresponding to various types of wireless power transmission devices stored in the memory, and may not be able to identify the wireless power transmission device (200) because the identification information corresponding to the received identification information is not confirmed as a result of the comparison.

As a result, if the electronic device (250) requests identification information from the wireless power transmission device (200) but does not receive identification information from the wireless power transmission device (200) or fails to identify the wireless power transmission device (200) corresponding to the received identification information, operation 604 may be performed.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may check the characteristic value of the wireless power transmission device (200) in operation 604. For example, the electronic device (250) may check the characteristic value of the wireless power transmission device (200) based on at least one sensor (520) device as in 703 of FIG. 7.

According to various embodiments, the characteristic value of the wireless power transmission device (200) may be a unique value for identifying the wireless power transmission device (200). For example, various types of wireless power transmission devices may each uniquely include at least one device (e.g., a coil (209) for wireless power transmission, a processor, a wire electrically connecting each component, a driving circuit, etc.) and may have a unique method of driving the at least one device (e.g., a method of supplying power to each device, etc.). Accordingly, each of the various types of wireless power transmission devices may have a special physical property by the at least one device and the driving method included in each of the various types of wireless power transmission devices. That is, the electronic device (250) may detect the unique physical property of the wireless power transmission device (200) based on at least one sensor (520) device, thereby confirming the characteristic value.

For example, the physical property of the wireless power transmission device (200) may be an electromagnetic property, and the characteristic value of the wireless power transmission device (200) may be an EM value (electromagnetic value). That is, the electronic device (250) may check the EM value of the wireless power transmission device (200) based on at least one sensor (520) for measuring the EM value. In addition to the EM value described above, the electronic device (250) may check various characteristic values for identifying the wireless power transmission device (200) on its own.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may check the characteristic value of a device in contact with (or closest to) the electronic device (250) to check the characteristic value of the wireless power transmission device (200). Various types of devices may be placed around the electronic device (250). Therefore, the electronic device (250) may check the characteristic value of a device in contact with the electronic device (250) based on at least one sensor (520) to accurately check the characteristic value of the wireless power transmission device (200) among the various types of devices, and check this as the characteristic value of the wireless power transmission device (200).

For example, the electronic device (250) (e.g., at least one processor (120)) may electromagnetically induce a part of the wireless power transmission device (200) (e.g., a power receiving coil (259), a specific circuit, a resonator, etc.) that is positioned closest to the electronic device (250) based on an electromagnetic field induced by applying an alternating current to a coil, and may obtain an electromagnetic value formed in the part of the component according to the electromagnetic induction as a characteristic value. At this time, the coil of the electronic device (250) may be a wireless power receiving coil (259), and in this case, the wireless power receiving coil (259) provided in the electronic device (250) may be a coil that operates as both a power receiving coil (259) and a power transmitting coil (209). In addition, at this time, the coil of the electronic device (250) may be a circuit including an electromagnetic induction (or characteristic value confirmation) coil provided separately from a wireless power receiving coil (259).

As another example, an electronic device (250) (e.g., at least one processor (120)) can vibrate using a vibration module and determine a physical value (e.g., a vibration value) reflected from a contacted device as a characteristic value.

As another example, an electronic device (250) (e.g., at least one processor (120)) can vibrate using a sound output module (or an ultrasonic module) and identify a physical value (e.g., a sound value, an ultrasonic value) reflected from a contacted device as a characteristic value.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may identify a first value for a foreign substance detection operation corresponding to a characteristic value of the wireless power transmission device (200) identified in operation 605. For example, the electronic device (250) may store the characteristic value for each of various wireless power transmission devices (200) and may assign an offset value for a foreign substance detection operation for each of various wireless power transmission devices (200) and store the same in the memory (130). Accordingly, the electronic device (250) may identify a wireless power transmission device (200) corresponding to the characteristic value of the identified wireless power transmission device (200) based on the stored information, and may identify the first value assigned to the identified wireless power transmission device (200).

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may further refer to the magnitude of the received power to identify the first value. For example, the electronic device (250) may store a first value in the memory (130) when the magnitude of the received wireless power (hereinafter, referred to as received power) is the first magnitude, a second value in the memory (130) when the magnitude of the received power is the second magnitude, and an Nth value in the memory (130) when the magnitude of the received power is the Nth magnitude. Here, the electronic device (250) may store values not only according to the magnitude of the received power, but also according to the range of the received power. The electronic device (250) may identify a wireless power transmitting device corresponding to the characteristic value of the electronic device (250), and identify a value corresponding to the magnitude of the received power among a plurality of values assigned to the identified wireless power transmitting device (200) as the first value.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may transmit information about the size of the received power (offset*size of the received power (P _PR )) to the wireless power transmission device (200) in which the first value (e.g., offset value) confirmed as in 704 of FIG. 7 is reflected in operation 606. Here, as described above, “*” means all mathematical operations such as “multiplication, subtraction, division, or addition,” and may not be limited to a specific mathematical operation.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may check the size of the output power (P _out ) to check the size of the received power (P _PR ) and may check the size of the power consumed by the electronic device (250) (P _PRloss ). For example, the electronic device (250) may check the size of the output power (P out ) at a point that outputs power ( _e.g. , at least one of the points (O1, O2, O3, O4, O5) illustrated in FIGS. 3A and 3C ) upon receiving the power received from the wireless power transmission device (200), and may check the size of the power consumed by at least one of at least one component (e.g., a rectifier, a coil, a capacitor, a shielding member of the coil, or various metal parts, etc.) included in the electronic device ( ₂₅₀ ). The electronic device (250) checks the size of the received power by adding the size of the confirmed output power (P _out ) and the size of the consumed power (P _PRloss ) (P _PR = P _out + Alternatively, the electronic device (250) is not limited to the above description, and may simply check the size of the output power (P _out ) and check the checked _size of the output power (P _out ) as the size of the received power (P _PR ).

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may reflect (e.g., add, subtract, multiply, and divide) a first value to the size of the received power, confirm the size of the received power to which the first value is reflected (offset*size of the received power (P _PR )), and transmit it to the wireless power transmission device (200).

Alternatively, according to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may separately transmit information about the identified first value (offset value) and the size (P _PR ) of the received power to the wireless power transmission device (200).

According to various embodiments, the wireless power transmission device (200) can perform a foreign substance detection operation in operation 607.

For example, the wireless power transmitter (200) may be configured to measure the difference (power loss (P _loss )) between the size of the transmission power (P _PT ) and the size of the reception power (P _PR ) that reflects the first value, as shown in 705 of FIG. 7, and the threshold value ( ) compared to ( ), the difference between the size of the transmission power and the size of the reception power is a threshold ( ) can be confirmed to exist if the foreign substance (510) is greater than the input power (e.g., the size of AC power received from the source) (P _in ) and the size of power consumed by the wireless power transmission device (200) (P _PTLoss ) in a manner similar to the electronic device (250), and the size of the transmitted power (P _in - P _PTLoss ) is determined by subtracting the size of the consumed power from the size of the input power (P _in ). ) can be checked.

For example, if the wireless power transmission device (200) separately receives the first value, it can reflect (e.g., add, subtract, multiply, and divide) the first value from the size of the reception power on its own. The wireless power transmission device (200) can compare the difference between the size of the transmission power and the size of the reception power to which the first value is reflected (e.g., add, subtract, multiply, and divide) with a threshold value, and determine that a foreign substance (510) is present if the difference between the size of the transmission power and the size of the reception power is greater than the threshold value.

For example, if the wireless power transmission device (200) separately receives the first value, it can adjust a threshold value to be referenced in the current foreign substance detection operation based on the received first value. The wireless power transmission device (200) can compare the difference between the size of the transmission power and the size of the reception power with the adjusted threshold value, and determine that a foreign substance (510) is present if the difference between the size of the transmission power and the size of the reception power is greater than the adjusted threshold value.

According to various embodiments, the wireless power transmission device (200) may stop the wireless charging operation at operation 608. For example, the wireless power transmission device (200) may stop the wireless charging operation if a foreign substance (510) is detected as a result of the foreign substance detection operation.

According to various embodiments, the meaning of stopping the wireless charging operation may vary depending on the timing of the wireless charging operation. For example, stopping the wireless charging operation may mean checking whether the procedure is stopped when the wireless charging operation is started and a procedure such as a ping connection for the wireless charging operation is in progress, and may also mean that the reception of wireless power is stopped as in 706 of FIG. 7 when wireless power is being received.

As described above, in a situation where the wireless power transmission device (200) cannot be identified, an offset value is checked based on the characteristic value of the wireless power transmission device (200) and an accurate foreign substance detection operation is performed based on this, thereby stopping the wireless charging operation in a situation where a foreign substance (510) is present, thereby preventing an overheating phenomenon due to the wireless charging operation in a situation where a foreign substance (510) is present.

Below, other examples of electronic devices (250) and their operating methods according to various embodiments are described. Meanwhile, below, redundant descriptions related to the operation of the above-described electronic devices (250) are omitted.

According to various embodiments, the electronic device (250) may assign a first value (e.g., an offset value) for a foreign matter detection operation to each group including at least one wireless power transmission device, identify a group corresponding to the identified wireless power transmission device (200), identify the first value assigned to the group, and provide the same to the wireless power transmission device (200). That is, the electronic device (250) may identify a group including the wireless power transmission device (200), and provide the first value assigned to the identified group to the wireless power transmission device (200).

FIG. 8 is a flowchart (800) for explaining an example of an operation of checking a group including a wireless power transmission device (200) of an electronic device (250) according to various embodiments and providing a value assigned to the checked group. According to various embodiments, the operation of the electronic device (250) is not limited to the order of the operations of the electronic device (250) illustrated in FIG. 8 and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (250) illustrated in FIG. 8, or at least one operation may be performed less than the operations of the electronic device (250) illustrated in FIG. 8. Hereinafter, FIG. 8 will be described with reference to FIG. 9.

FIG. 9 is a diagram for explaining an example of an operation of identifying a group including a wireless power transmission device (200) of an electronic device (250) according to various embodiments and providing a value assigned to the identified group.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) can check the characteristic value of the wireless power transmitter in operation 801. Operation 801 of the electronic device (250) can be performed like operation 604 described above, so redundant description is omitted.

According to various embodiments, an electronic device (250) (e.g., at least one processor (120)) may identify a wireless power transmission device (200) corresponding to a characteristic value in operation 802.

According to various embodiments, the meaning of the electronic device (250) identifying the wireless power transmission device (200) is not only the meaning of confirming the identification information (911) of the wireless power transmission device (200), but also the meaning of the electronic device (250) being able to confirm what kind of device the wireless power transmission device (200) is and what group it belongs to, and this can be performed based on various information to be described later.

For example, the electronic device (250) (e.g., at least one processor (120)) can identify the wireless power transmission device (200) by checking the identification information (911) of the wireless power transmission device (200) corresponding to the checked characteristic value. The electronic device (250) can store the identification information (911) of the wireless power transmission device (200) corresponding to a plurality of characteristic values. The electronic device (250) can store first identification information corresponding to a first characteristic value, second identification information corresponding to a second characteristic value, and Nth identification information corresponding to an Nth characteristic value in the memory (130). Accordingly, the electronic device (250) can compare the stored information with the checked characteristic value, check the identification information corresponding to the checked characteristic value, and identify the wireless power transmission device (200) corresponding to the checked identification information. However, there may be no wireless power transmission device (200) corresponding to the characteristic value confirmed by the electronic device (250), which may be defined as the characteristic value of the wireless power transmission device (200) not being registered.

For example, the electronic device (250) (e.g., at least one processor (120)) can identify the wireless power transmission device (200) by the characteristic value itself. For example, the electronic device (250) can store the group information (900) in the memory (130) so that the wireless power transmission device (200) is identified by the characteristic value instead of the identification information of the wireless power transmission device (200) in the group information (900) described below. In this case, the electronic device (250) can directly check the group information (900) corresponding to the characteristic value without having to check the identification information (911) of the wireless power transmission device (200) corresponding to the characteristic value of the wireless power transmission device (200).

For example, in a situation where the electronic device (250) (e.g., at least one processor (120)) cannot identify not only the identification information (911) but also the characteristic value, the electronic device (250) can identify the wireless power transmission device (200) based on various information. As shown in the group information (900) described below, the electronic device (250) can receive various information (e.g., pad type information (912), manufacturer information, etc.) of the wireless power transmission device (200), and identify the wireless power transmission device (200) based on the received various information to confirm the group including the identified wireless power transmission device (200).

According to various embodiments, an electronic device (250) (e.g., at least one processor (120)) may identify a group of wireless power transmission devices (200) identified in operation 803.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may store information (900, group-specific information) to which a first value is assigned by group (910, Default, Group A, Group B, Group C, Group D) including at least one wireless power transmitter, as in 901 of FIG. 9, in the memory (130). In other words, the electronic device (250) may store a first offset value corresponding to group A, a second offset value corresponding to group B, a third offset value corresponding to group C, ..., and a Z-th offset value corresponding to group Z. In addition, referring to 901 of FIG. 9, specific wireless charging transmitters may be included in a default group, and a default value may be assigned to the default group. The default value will be described later.

In addition, the group-specific information (900) may include identification information (911) (or the characteristic value described above) of the wireless power transmission device (200) included in each group and various information (e.g., pad type information, manufacturer information) of the wireless power transmission device (200). Accordingly, the electronic device (250) may identify a group including the identified wireless power transmission device (200) based on the identification information (911, e.g., 0x20 ...), characteristic value, or various information (e.g., pad type information (912)) of the identified wireless power transmission device (200). Here, the identification information may be various information (e.g., MAC address, etc.) that may be assigned to the wireless power transmission device in order to identify the wireless power transmission device in addition to the illustrated TX-ID.

According to various embodiments, each group may include at least one wireless power transmission device having the same or similar first value for the foreign substance detection operation. In other words, the electronic device (250) may include at least one wireless power transmission device that successfully performed the foreign substance detection operation based on the common first value in the same group. At this time, the electronic device (250) may reflect (e.g., add, subtract, multiply, and divide) the common first value for the group. For example, if the first value associated with each of the at least one wireless power transmission device included in the group is the same, the electronic device (250) may assign the first value to a specific group, and if the first value associated with each of the at least one wireless power transmission device included in the group is slightly different, the electronic device (250) may assign an average value of each first value to the specific group.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may perform machine learning to find an optimal first value for various types of wireless power transmission devices, generate at least one wireless power transmission device having a similar first value as a result of the machine learning as a group, and assign the corresponding first value to each group.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may update the first value for each group as described above. For example, the electronic device (250) may adjust the wireless power transmission device (200) included in the group described above to be included in another group, or may perform an operation of creating a new group including a newly identified wireless power transmission device (200) and assigning the first value to the created group. The operation of the electronic device (250) is described in more detail in FIGS. 9 to 12. In addition, the electronic device (250) may continuously update the offset value assigned to a group according to the machine learning described above.

The operation of storing and updating information about the first value for each group of the electronic devices (250) described above can be performed in another electronic device (250) (e.g., a server). In this case, the other electronic device (250) (e.g., a server) can receive and update information about the first value for each group from a plurality of electronic devices (250), and transmit the stored information to each of the plurality of electronic devices (250).

As described above, since the electronic device (250) stores offset values for each group, there is no need to store offset values for each wireless power transmission device (200), so the operating burden of the electronic device (250) can be reduced. In addition, since the electronic device (250) updates the offset values as described above, the accuracy of the foreign substance detection operation can be improved.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may identify a group including an identified wireless power transmission device (200) among a plurality of groups (910). For example, the electronic device (250) may identify group A corresponding to identification information (911) of the wireless power transmission device (200) corresponding to a characteristic value, as in 902 of FIG. 9. In addition, as described above, according to various embodiments, the electronic device (250) may identify a group including the wireless power transmission device (200) based on a characteristic value or various information.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may verify a first value corresponding to the group identified in operation 804. The electronic device (250) may verify an offset value assigned to the identified group, as in 902 of FIG. 9.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may identify a default value as a first value for a foreign matter detection operation in operation 805 when a wireless power transmission device (200) corresponding to a characteristic value is not identified or a group of identified wireless power transmission devices (200) is not identified.

According to various embodiments, the default value may be a common value designated in advance to maximize the accuracy of the foreign matter detection operation of various types of wireless power transmission devices. In other words, the default value may be a value set in advance to ensure the accuracy of the foreign matter detection operation of various types of wireless power transmission devices to a certain level.

Alternatively, the electronic device (250) may identify the first value corresponding to the characteristic value if the wireless power transmission device (200) corresponding to the characteristic value is not identified or the group of the identified wireless power transmission devices (200) is not identified. For example, the electronic device (250) may identify another electronic device (250) that is most similar to the identified characteristic value, and identify the first value assigned to the other identified electronic device. In this case, similar to the above, the electronic device (250) may identify a group including another electronic device that is identified as having a characteristic value similar to the wireless power transmission device (200), and identify the first value assigned to the identified group. Here, the electronic device may machine learn the success rate of the foreign substance detection operation of the first value (offset value) for each characteristic value of various wireless power transmission devices, obtain the relationship between the characteristic values and the offset values, and identify the offset value assigned to the similar characteristic value corresponding to the identified characteristic value as described above.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may transmit information about the size of the received power reflected by the first value in operation 806. Operation 806 of the electronic device (250) may be performed in the same manner as operation 606 of the electronic device (250) described above, and therefore, a redundant description thereof will be omitted.

Below, other examples of electronic devices (250) and their operating methods according to various embodiments are described. Meanwhile, below, redundant descriptions related to the operation of the above-described electronic devices (250) are omitted.

According to various embodiments, if the wireless charging operation is not interrupted by the foreign substance detection operation of the wireless charging transmitter based on the first value (e.g., the default value), the electronic device (250) may check (or calculate) a second value different from the default value (e.g., a value to which the default value is adjusted), and cause the foreign substance detection operation of the wireless charging transmitter to be performed based on the second value.

When a foreign substance detection operation is performed based on a default value for an unidentified wireless power transmitter (200), the foreign substance may not be detected by the foreign substance detection operation in a situation where a foreign substance exists. However, by gradually adjusting the default value for the foreign substance detection operation so that the foreign substance detection operation is performed, the accuracy of the foreign substance detection operation can be improved.

FIG. 10 is a flowchart (1000) for explaining an example of an operation for adjusting a default value for a foreign substance detection operation of an electronic device (250) to a different value according to various embodiments. According to various embodiments, the operation of the electronic device (250) is not limited to the order of the operations of the electronic device (250) illustrated in FIG. 10, and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (250) illustrated in FIG. 10, or at least one operation may be performed less than the operations of the electronic device (250) illustrated in FIG. 10. Hereinafter, FIG. 10 will be described with reference to FIG. 11.

FIG. 11 is a drawing for explaining an example of an operation of adjusting a default value for a foreign substance detection operation of an electronic device (250) to a different value according to various embodiments.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may determine whether the wireless charging operation is to be stopped based on the first value (e.g., the default value) previously confirmed in operation 1001. For example, the electronic device (250) may transmit information about the size of the reception power reflected by the first value (e.g., the default value) previously confirmed or separately transmit the first value (e.g., the default value) and information about the size of the reception power, and then determine whether the wireless charging operation is to be stopped until a specified period of time. For example, when the wireless power transmission device (200) is not identified, the electronic device (250) may determine a default value assigned to a default group among the group-specific information (900) as in 1101 of FIG. 11, transmit information about the size of the reception power reflected by the default value to the wireless power transmission device (200), and then determine whether the wireless charging operation is to be stopped until a specified period of time.

Alternatively, according to various embodiments, the condition that triggers the operation of adjusting the first value may be a case where an abnormal state different from a normal state is identified. In other words, when the electronic device (250) identifies an abnormal state, it may perform operations 1002 to 1006 thereafter. The operation of identifying an abnormal state of the electronic device (250) will be specifically described later in the description of FIGS. 12 and 13.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may, if the wireless charging operation is not interrupted, adjust the first value in operation 1002 to check the second value, and transmit information about the size of the received power reflected by the second value to the wireless power transmission device (200) in operation 1003. For example, the electronic device (250) may increase or decrease the first value to check the second value, and reflect it in the size of the received power (e.g., by adding, subtracting, multiplying, and dividing).

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may determine that the wireless charging operation is stopped in operation 1004. For example, the electronic device (250) may determine whether the wireless charging operation is stopped based on the second value, similar to operation 1001, and may determine that a foreign substance is detected in the wireless power transmission device (200) and the wireless charging operation is stopped based on the second value.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may identify a group corresponding to the second value in operation 1005. For example, the electronic device (250) may identify a specific group (e.g., group A) to which the second value is assigned, as in 1102 of FIG. 11. Alternatively, the electronic device (250) may identify a specific group to which a value within an allowable range from the second value is assigned.

According to various embodiments, the electronic device (250) may store information in the memory (130) by including the wireless power transmission device (200) in the group identified in operation 1006 or by including the wireless power transmission device (200) in a new group.

For example, the electronic device (250) (e.g., at least one processor (120)) may store information in the memory (130) such that the identified wireless power transmission device (200) (e.g., the wireless power transmission device having a TX-ID of 0x55) is included in a specific group (e.g., the group A) as shown in 1102 of FIG. 11. Accordingly, after the information is stored, when the electronic device (250) identifies the wireless power transmission device (200) (the wireless power transmission device having a TX-ID of 0x55), the value (e.g., the second value) assigned to the specific group (e.g., the group A) may be reflected (e.g., added, subtracted, multiplied, and divided) in the size of the received power.

For example, the electronic device (250) (e.g., at least one processor (120)) may create a new group if a group is not identified, although not shown in FIG. 11, and store information in the memory (130) such that the identified wireless power transmission device (200) (e.g., a wireless power transmission device having a TX-ID of 0x55) is included in the new group. In addition, the electronic device (250) may assign a second value to the new group. Accordingly, after the information is stored, when the electronic device (250) identifies the wireless power transmission device (200) (e.g., a wireless power transmission device having a TX-ID of 0x55), the value assigned to the new group (e.g., the second value) may be reflected (e.g., added, subtracted, multiplied, and divided) to the size of the received power.

By updating the offset value according to the operation described above, the accuracy of the foreign substance detection operation can be improved.

Below, other examples of electronic devices (250) and their operating methods according to various embodiments are described. Meanwhile, below, redundant descriptions related to the operation of the above-described electronic devices (250) are omitted.

According to various embodiments, when the electronic device (250) determines that the current state of the wireless charging operation is abnormal (or not normal), it may determine (or calculate) a second value (e.g., a value in which the first value is adjusted) that is different from the first value for the previous foreign substance detection operation, and cause the foreign substance detection operation to be performed based on the second value.

According to various embodiments, the abnormal state may mean a state in which a foreign substance (510) exists and the wireless charging operation is not performed smoothly, and the normal state may mean a state in which a foreign substance (510) does not exist and the wireless charging operation is performed smoothly.

FIG. 12 is a flowchart (1200) for explaining an example of an operation for checking an abnormal state of an electronic device (250) according to various embodiments. According to various embodiments, the operation of the electronic device (250) is not limited to the order of the operations of the electronic device (250) illustrated in FIG. 12, and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (250) illustrated in FIG. 12, or at least one operation may be performed less than the operations of the electronic device (250) illustrated in FIG. 12. Hereinafter, FIG. 12 will be described with reference to FIG. 13.

FIG. 13 is a drawing for explaining an example of an operation for checking an abnormal state of an electronic device (250) according to various embodiments.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may initiate a wireless charging operation in operation 1201. For example, the electronic device (250) may be placed on the wireless power transmission device (200) as in 1301 of FIG. 13, and may receive first wireless power from the wireless power transmission device (200) using the power receiving coil (259). In other words, the wireless power transmission device (200) may transmit the first wireless power to the electronic device (250) using the power transmitting coil (209). Since operation 1201 of the electronic device (250) other than the above may be performed like operation 601 and operation 301 of the electronic device (250) described above, a redundant description will be omitted.

Alternatively, according to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may transmit information about the size of the received power reflecting the first value or the second value for the foreign substance detection operation to the wireless power transmission device (200) upon initiation of the wireless charging operation as described above.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may compare a value associated with a second wireless power received in a normal state with a value associated with a first wireless power in operation 1202 after initiating a wireless charging operation.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may store a value related to the received wireless power when wireless power is received in a state in which there is no foreign matter (510) (or, in a normal state). The value related to the wireless power received in the normal state may include a temperature value formed in the electronic device (250) as the wireless power is received, a value of a magnitude of an output power (e.g., an output power of a rectifier, etc.) as the wireless power is received, an electromagnetic value formed in the electronic device (250) as the wireless power is received, and the like. Without being limited to what has been described, the value related to the wireless power received in the normal state may include various values.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may store a value related to the received wireless power in the memory (130) when wireless power is received in the absence of a foreign substance (510) depending on the type of wireless power transmission device (200). For example, the value related to the received wireless power may be stored in the memory (130) as a first value when wireless power is received in a normal state in the case of the first wireless power transmission device (200), as a second value when wireless power is received in a normal state in the case of the second wireless power transmission device (200), ..., as an Nth value when wireless power is received in a normal state in the case of the Nth wireless power transmission device (200). In this case, the electronic device (250) can receive identification information from the wireless power transmission device (200) or identify the wireless power transmission device (200) by checking the characteristic values of the wireless power transmission device (200) as described above, and can check the values related to wireless power received in a normal state corresponding to the identified wireless power transmission device (200).

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) can check a value related to the first wireless power received in a current state (e.g., an abnormal state or a state in which a foreign substance (510) is present). The value related to the first wireless power received in the current state may include a temperature value formed in the electronic device (250) as the wireless power is received, a value of a magnitude of an output power (e.g., an output power of a rectifier, etc.) as the wireless power is received, an electromagnetic value formed in the electronic device (250) as the wireless power is received, and the like, similar to a value related to the wireless power received in a normal state.

Accordingly, the electronic device (250) (e.g., at least one processor (120)) can compare the value (Ap1) regarding the first wireless power received in the current state from the wireless power transmission device (200) with the value (Ap2) regarding the second wireless power received in the pre-stored normal state, as shown in 1302 of FIG. 13. The electronic device (250) can determine that the current state is an abnormal state if each value is different as a result of the comparison. Alternatively, the electronic device (250) can determine that the current state is an abnormal state if the value of the current state exceeds the allowable range from the value of the normal state as a result of the comparison. The operation of comparing the value (Ap1) regarding the first wireless power received in the current state of the electronic device (250) with the value (Ap2) regarding the second wireless power received in the pre-stored normal state will be described in detail later with reference to FIGS. 15 to 17.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may adjust the first value for the foreign substance detection operation in operation 1203. For example, the electronic device (250) may adjust (e.g., decrease or increase) the first value checked to reflect the size of the received power after the initiation of the wireless charging operation. The operation of checking the first value of the electronic device (250) may be performed as in operation 605 of the electronic device (250) described above and the operation of the electronic device (250) in FIG. 9, and therefore, a duplicate description thereof will be omitted.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may transmit information about the size of the reception power to which the adjusted first value is reflected in operation 1204 to the wireless power transmission device (200). The electronic device may control the communication circuit (253) to transmit information about the size of the reception power to which the adjusted first value is reflected, as in operation 1303 of FIG. 13. Accordingly, the wireless power transmission device (200) may re-perform the foreign substance detection operation based on the size of the reception power and the size of the transmission power to which the adjusted first value is reflected, as in operation 1304 of FIG. 13, to detect the foreign substance and stop the wireless charging operation.

According to the operation described above, the accuracy of the foreign substance detection operation can be improved.

Below, other examples of electronic devices (250) and their operating methods according to various embodiments are described. Meanwhile, below, redundant descriptions related to the operation of the above-described electronic devices (250) are omitted.

According to various embodiments, the electronic device (250) may adjust the first value by comparing a value related to the currently received wireless power with a value related to the wireless power received in a normal state (or, in a state where there is no foreign substance (510)), and update the group-specific first value stored in the electronic device (250) based on the adjusted first value.

FIG. 14 is a flowchart (1400) for explaining an example of an operation of comparing a value related to a currently received wireless power of an electronic device (250) with a value related to a wireless power received in a normal state according to various embodiments. According to various embodiments, the operation of the electronic device (250) is not limited to the order of the operations of the electronic device (250) illustrated in FIG. 14, and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (250) illustrated in FIG. 14, or at least one operation may be performed less than the operations of the electronic device (250) illustrated in FIG. 14. Hereinafter, FIG. 14 will be described with reference to FIGS. 15 to 17.

FIG. 15 is a diagram for explaining an example of an operation of comparing a value related to a currently received wireless power of an electronic device (250) with a value related to a wireless power received in a normal state according to various embodiments. FIG. 16 is a diagram for explaining an example of an operation of updating a first value for each group of an electronic device (250) according to various embodiments. FIG. 17 is a diagram for explaining an example of an operation of displaying a screen for requesting foreign substance confirmation of an electronic device (250) according to various embodiments.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may control to receive the first wireless power in operation 1401. For example, as described above, the electronic device (250) may identify the wireless power transmission device (200) after the wireless charging operation is initiated, and may receive wireless power from the wireless power transmission device (200) using the power receiving coil. At this time, the electronic device (250) may confirm the identified wireless power transmission device (200) and the first value (A2) corresponding to the size of the current reception power, as in 1501 of FIG. 15, and may transmit information about the size of the reception power to which the confirmed first value (A2) is reflected, to the wireless power transmission device (200). At this time, as in 1601 of FIG. 16, the first value (A2) may be a value assigned to group A.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may compare a value related to the second wireless power received in a normal state with a value related to the first wireless power in operation 1402. For example, the electronic device (250) may compare a value related to the second wireless power received in a normal state (1521) with a value related to the first wireless power (1522), as in 1502 of FIG. 15. Also, for example, the electronic device (250) may compare a difference value (1523) of 1502 of FIG. 15 with a threshold value.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may perform operation 1402 at a specified time point. For example, depending on the wireless charging operation, a difference may exist between the value in the normal state and the value in the abnormal state from a specific time point after the wireless power is received. In other words, even if there is a foreign substance (510), the value in the normal state and the value in the abnormal state may be different from a specific time point after the wireless power is received. Therefore, the electronic device (250) may perform operation 1402 from a specific time point after a specific time has passed from the time point when the wireless charging operation is initiated or the time point when the wireless power is received, as in 1502 of FIG. 15. Accordingly, the operational burden of the electronic device (250) that occurs due to the indiscriminate operation of checking the value in the normal state and the value in the abnormal state of the electronic device (250) may be reduced.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may determine whether the current state is an abnormal state in operation 1403 based on the result of the comparison operation in operation 1402. For example, the electronic device (250) may determine the current state as an abnormal state (or a state in which a foreign substance (510) exists) if the value (1521) related to the second wireless power received in the normal state and the value (1522) related to the first wireless power are different or the difference value exceeds a threshold value.

According to various embodiments, when an abnormal state is identified, the electronic device (250) (e.g., at least one processor (120)) may adjust the first value (A2) corresponding to the first wireless power received in operation 1404 and transmit information about the size of the received power reflected by the adjusted first value (A2-1) to the wireless power transmission device (200) in operation 1405. Operations 1404 to 1405 of the electronic device (250) may be performed similarly to operations 1203 to 1204 of the electronic device (250) described above, and therefore, redundant descriptions thereof will be omitted.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may determine whether reception of wireless power is stopped in operation 1406. The wireless power transmission device (200) may perform a foreign matter detection operation based on the magnitude of the reception power and the magnitude of the transmission power in which the adjusted first value (A2-1) is reflected, and may stop transmission of wireless power if a foreign matter (510) is detected. The foreign matter detection operation of the wireless power transmission device (200) may be performed in the same manner as operation 607 of the wireless power transmission device (200) described above, and therefore, a redundant description thereof will be omitted.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may, if the reception of wireless power is interrupted in operation 1406, identify a group corresponding to the adjusted first value (A2-1) in operation 1407, and, if the adjusted first value (A2-1) in operation 1408 corresponds to a value assigned to a second group (group B), store information such that the wireless power transmission device (200) identified in the identified group or the wireless power transmission device (200) is included in a new group. For example, if the adjusted first value (A2-1) as in 1602 of FIG. 16 corresponds to a value assigned to a second group (group B), the electronic device (250) may store information such that the identified wireless power transmission device (200) (e.g., a wireless power transmission device having a TX-ID of 0x22) is included in the second group (group B). Alternatively, if there is no group corresponding to the adjusted first value (A2-1) although not illustrated in FIG. 16, the electronic device (250) may create a new group, assign the adjusted first value (A2-1), and store information such that the identified wireless power transmission device (200) (e.g., the wireless power transmission device having a TX-ID of 0x22) is included in the newly created group. Operations 1407 to 1408 of the electronic device (250) may be performed in the same manner as operations 1005 to 1006 of the electronic device (250) described above, and therefore, a redundant description thereof will be omitted.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may determine whether the operation of adjusting the first value (A2-1) has reached a preset number of times in operation 1409 if the reception of wireless power is not interrupted in operation 1406. For example, after transmitting information about the size of the reception power reflected by the adjusted first value (A2-1) to the wireless power transmission device (200), it may determine whether the reception of wireless power is interrupted after a preset time has elapsed. If the reception of wireless power is not interrupted, the electronic device (250) may readjust the adjusted first value (A2-1) and transmit the size of the reception power reflected by the readjusted first value to the wireless power transmission device (200). Thereafter, if the reception of wireless power is not interrupted continuously, the electronic device (250) may further perform the operation of readjusting the above-described first value a preset number of times.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may display a screen for requesting foreign substance verification in operation 1410 when it is determined that the operation of adjusting the first value in operation 1407 has reached a preset number of times. For example, even if the electronic device (250) adjusts the first value a preset number of times and transmits information about the size of the reception power reflecting the adjusted first value (A2-1) to the wireless power transmission device (200), the reception of wireless power may not be interrupted. In this case, the electronic device (250) may switch the screen displayed as in 1701 of FIG. 17 and display a screen (1710) for requesting foreign substance removal or foreign substance verification as in 1702 of FIG. 17 on the display. Accordingly, as in 1803 of Fig. 17, if a foreign substance (510) is placed between an electronic device (250) and a wireless power transmission device (200), the value by the currently received wireless power and the value by the received power received in a normal state are compared again after t) by the user, and if the current state is confirmed to be a normal state, the display of the screen (1710) for checking for a foreign substance can be stopped.

Below, other examples of electronic devices (250) and their operating methods according to various embodiments are described. Meanwhile, below, redundant descriptions related to the operation of the above-described electronic devices (250) are omitted.

According to various embodiments, the electronic device (250) can adjust the first value by comparing the temperature value by the wireless power currently received with the temperature value by the wireless power received in a normal state (or in a state where there is no foreign substance (510)).

FIG. 18 is a flowchart (1800) for explaining an example of an operation of comparing a temperature value by wireless power currently received by an electronic device (250) with a temperature value by wireless power received in a normal state according to various embodiments. According to various embodiments, the operation of the electronic device (250) is not limited to the order of the operations of the electronic device (250) illustrated in FIG. 18, and may be performed in a different order from the illustrated order. In addition, according to various embodiments, more operations may be performed than the operations of the electronic device (250) illustrated in FIG. 18, or at least one operation may be performed less than the operations of the electronic device (250) illustrated in FIG. 18. Hereinafter, FIG. 18 will be described with reference to FIG. 19.

FIG. 19 is a drawing for explaining an example of an operation of comparing a temperature value by wireless power currently received by an electronic device (250) with a temperature value by wireless power received in a normal state.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may be controlled to receive the first wireless power in operation 1801. Operation 1801 of the electronic device (250) may be performed similarly to operation 1401 of the electronic device (250) described above, and therefore, a redundant description thereof will be omitted.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may compare a first temperature value (2101) of a first portion (2001) of the electronic device (250) by the second wireless power received in a normal state with a second temperature value (2102) of the first portion (2001) by the first wireless power as illustrated in FIG. 19 in operation 1802.

According to various embodiments, the first part (2001) of the electronic device (250) may be defined as at least a portion of a configuration in which a temperature rapidly increases when the electronic device (250) receives wireless power. For example, the first part (2001) may be at least a portion of a wireless power receiving module including a wireless power receiving coil (259) that receives wireless power, as illustrated in FIG. 19. For example, the first part (2001) may be at least a portion of a configuration of the electronic device (250) corresponding to a location in which a temperature rapidly increases when a foreign substance (510) receives wireless power. For example, the first part (2001) is a part of the configuration of the electronic device (250) at a corresponding (e.g., adjacent) position to the power transmitting coil (209) of the wireless power transmitting device (200), and when the foreign substance (510) is positioned to correspond to the power transmitting coil (209), the first part (2001) may be heated as heat is generated from the foreign substance (510) that receives wireless power.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may pre-store information about a temperature value of the first part (2001) by wireless power received in a normal state. The electronic device (250) may pre-store information about the temperature of the first part (2001) of the electronic device (250) at a time when wireless power is received in a normal state and after a time has elapsed.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may measure the current temperature value (2102) of the first part (2001) as illustrated in FIG. 19, and compare it with the temperature value (2101) of the first part (2001) by wireless power received in a normal state that is pre-stored in a memory. At this time, the electronic device (250) may check information about a point in time after the wireless power is received, and call the temperature value (2101) of the first part (2001) by wireless power received in a normal state that is pre-stored corresponding to the checked point in time.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may compare the temperature value (2102) of the first part (2001) by the currently received wireless power with the temperature value (2101) of the wireless power received in the normal state after a specified period of time (from time point 2301) has elapsed since wireless power is received from the wireless power transmission device (200), as illustrated in FIG. 19. Alternatively, the electronic device (250) may compare the temperature value (2102) of the first part (2001) by the received wireless power with the temperature value (2101) of the wireless power received in the normal state only within a specified time range (2302). As illustrated in FIG. 19, the difference (2103) between the temperature values of the first part (2001) in the abnormal state and the normal state may be rapid from a specified time point or within a specified time range. Accordingly, the electronic device (250) can improve the accuracy of abnormal state identification by checking the temperature difference of the first part (2001) at a time point or over a time range where the temperature difference (2103) of the first part (2001) in the normal state and the abnormal state is rapid.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may, if it is determined in operation 1803 that the second temperature value (2102) exceeds the first temperature value (2101) or that the difference (2103) between the second temperature value (2102) and the first temperature value (2101) exceeds a threshold value, compare, in operation 1804, a first difference value (2204) between the first temperature value (2101) and a third temperature value (2201) of the second part of the electronic device by the second wireless power received in the normal state and a second difference value (2205) between the second temperature value (2102) and a fourth temperature value (2202) of the second part (2002) by the first wireless power received in the current state.

According to various embodiments, the second portion (2002) of the electronic device (250) may be at least a portion of a configuration of the electronic device (250) in which the temperature rises relatively less than that of the first portion (2001) as the electronic device (250) receives wireless power. For example, the second portion (2002) may be at least a portion of a configuration including a USB connector as illustrated in FIG. 19. The second portion (2002) is a portion spaced apart from the first portion (2001), and thus, is not greatly affected by the received power, and thus, the temperature rises relatively less than that of the first portion (2001).

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may pre-store information about a temperature value (2202) of the second part (2002) by wireless power received in a normal state. The electronic device (250) may pre-store information about the temperature of the second part (2002) of the electronic device (250) at a time when wireless power is received in a normal state and after a time has elapsed.

According to various embodiments, the electronic device (250) (e.g., at least one processor (120)) may compare a difference (2204) between a first temperature value (2101) of the first portion (2001) and a fourth temperature value (2202) of the second portion (2002) in a normal state and a difference (2205) between a second temperature value (2102) of the first portion (2001) and a fourth temperature value (2202) of the second portion (2002) in a current state, as illustrated in FIG. 19. In addition, the electronic device (250) may perform operation 1804 at a specified point in time or time range, similarly to operation 1802.

Meanwhile, according to various embodiments, the electronic device (250) (e.g., at least one processor (120)) can use the temperature value (2201) of the second part (2002) measured in the current state without having to store information about the temperature value (2202) of the second part (2002) in the normal state in advance. For example, the electronic device (250) can compare the difference between the first temperature value (2101) of the first part (2001) in the normal state and the fourth temperature value (2202) of the second part (2002) in the current state and the difference between the second temperature value (2102) of the first part (2001) in the current state and the fourth temperature value (2202) of the second part (2002). The operation of the electronic device (250) as described above can be performed when there is little difference between the temperature of the second part (2002) in the normal state and the abnormal state.

According to various embodiments, if the electronic device (250) (e.g., at least one processor (120)) determines in operation 1805 that the second difference value (2205) exceeds the first difference value (2204) or that the difference between the second difference value (2205) and the first difference value (2204) exceeds a threshold value, the electronic device (250) may adjust the first value corresponding to the first wireless power received in operation 1806, and transmit information about the size of the received power to which the adjusted first value is reflected in operation 1807 to the wireless power transmission device (200). Operations 1806 to 1807 of the electronic device (250) may be performed similarly to operations 1404 to 1405 of the electronic device (250) described above, and therefore, a redundant description thereof will be omitted.

Meanwhile, operations 1802 to 1803 of the electronic device (250) described above may be omitted and operations 1804 to 1805 of the electronic device (250) may be performed, or only operations 1802 to 1083 of the electronic device (250) may be performed and operations 1804 to 1805 of the electronic device (250) may be omitted.

Meanwhile, the operations of various embodiments of the electronic device (250) described above may also be performed in the wireless power transmission device (200). For example, although the electronic device (250) is described as reflecting the offset value to the size of the received power, the wireless power transmission device (200) may separately receive information about the size of the received power and the offset value, and apply the offset value to the size of the received power.

According to various embodiments, an electronic device (250) may be provided, including at least one coil, at least one sensor (520), and at least one processor (120), wherein the at least one processor (120) is configured to request identification information of the wireless power transmission device (200) from a wireless power transmission device (200), and, if the identification information is not received from the wireless power transmission device (200), to check a characteristic value of the wireless power transmission device (200) based on the at least one sensor (520), to check the wireless power transmission device (200) corresponding to the checked characteristic value, to check a first value for a foreign substance detection operation corresponding to the checked wireless power transmission device (200), and to control the at least one communication circuit to transmit information on the magnitude of wireless power received from the wireless power transmission device (200) to which the checked first value is reflected, to the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided in which the at least one processor (120) is set to control the at least one communication circuit to transmit a message requesting the identification information a specified number of times when the identification information is not received from the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, further comprising a memory (130) configured to store a plurality of values for the foreign substance detection operation associated with a plurality of groups, each of which includes at least one first wireless power transmission device (200), wherein the at least one processor (120) is configured to identify a first group corresponding to the identified wireless power transmission device (200) among the plurality of groups, and identify a first value corresponding to the identified first group among the plurality of values.

According to various embodiments, an electronic device (250) may be provided, wherein the memory (130) further stores characteristic values of a plurality of wireless power transmission devices (200) and identification information of the plurality of wireless power transmission devices (200), and the at least one processor (120) is configured to use the at least one sensor (520) to identify a characteristic value of the wireless power transmission device (200) detected based on at least one component included in the wireless power transmission device (200), identify a first characteristic value corresponding to the identified characteristic value among the characteristic values, and identify first identification information corresponding to the first characteristic value among the identification information.

According to various embodiments, an electronic device (250) may be provided, wherein the characteristic value includes an EM (Electro Magnetic) value of the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) is configured to, when a value corresponding to the characteristic value among the characteristic values is not identified, identify a default value as the first value, and transmit information about the size of the received wireless power reflected by the default value to the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) controls the at least one communication circuit to adjust the default value if the wireless charging operation is not stopped based on the default value, and transmit information about the amount of the received wireless power reflected by the adjusted default value to the wireless power transmission device (200), and, if the wireless charging operation is stopped based on the adjusted default value, allocate the adjusted default value to a new second group including the confirmed wireless power transmission device (200), control the memory (130) to store the adjusted default value, and, if the wireless power transmission device (200) is re-confirmed thereafter, confirm the adjusted default value assigned to the new second group.

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) is configured to control the at least one communication circuit to check a first temperature of a first part of the electronic device (250) and a first temperature of a second part of the electronic device (250) if the wireless charging operation is not stopped based on the first value, check a difference between the first temperature and the second temperature, and if the difference between the first temperature and the second temperature is greater than a threshold temperature, transmit information about the amount of the received wireless power reflected by the second value to the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, wherein a first portion of the electronic device (250) includes at least one power receiving coil (259), and a second portion of the electronic device (250) is spaced apart from the first portion.

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) is configured to control the at least one communication circuit to adjust the second value if the wireless charging operation is not stopped based on the second value, and to transmit information about the size of the received wireless power reflected by the adjusted second value to the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, further comprising a memory (130), wherein the at least one processor (120) is configured to control the memory (130) to, when the wireless charging operation is stopped based on the second value, identify a group corresponding to the second value, and store information so that the identified wireless power transmission device (200) is included in the group corresponding to the second value.

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) is configured to control the memory (130) to create a new group including the identified wireless power transmission device (200) if a group corresponding to the second value is not identified, and to store information about the new group including the identified wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, which includes a memory (130), at least one power receiving coil (259), and at least one processor (120), wherein the at least one processor (120) controls an electronic device (250) to receive first wireless power from a wireless power transmission device (200) using the at least one power receiving coil (259), compares a reference value related to second wireless power received in a normal state pre-stored in the memory (130) with a value related to the received first wireless power, and adjusts a first value corresponding to the first wireless power pre-stored in the memory (130) for a foreign substance detection operation based on a result of the comparison, and controls the at least one communication circuit to transmit information about the magnitude of the first wireless power in which the adjusted first value is reflected to the wireless power transmission device (200).

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) is configured to transmit information about the size of the first wireless power reflected by the first value to the wireless power transmission device (200), and compare the reference value related to the second wireless power with the value related to the received first wireless power if the reception of the first wireless power from the wireless power transmission device (200) is not interrupted based on the first value.

According to various embodiments, an electronic device (250) may be provided, wherein the at least one processor (120) is configured to compare a first temperature value of a first portion of the electronic device (250) by the second wireless power pre-stored in the memory (130) with a second temperature value of the first portion of the electronic device (250) by the received first wireless power, and if the second temperature value exceeds the first temperature value, compare a first difference between the second temperature value and a third temperature value of the second portion of the electronic device (250) by the received first wireless power with a second difference between the first temperature value and the temperature of the second portion of the electronic device (250) by the second wireless power pre-stored in the memory (130), and if the first difference exceeds the second difference, adjust the first value.

According to various embodiments, an electronic device (250) may be provided, further including a display, wherein the at least one processor (120) is set to control the display to display a screen for requesting foreign matter confirmation if the reception of the first wireless power from the wireless power transmission device (200) is not interrupted based on the adjusted first value.

According to various embodiments, an electronic device (250) may be provided, further comprising a memory (130) configured to store a plurality of values for the foreign substance detection operation associated with a plurality of groups, each of which includes at least one first wireless power transmission device (200), wherein the at least one processor (120) is configured to control the memory (130) to, when reception of the wireless power from the wireless power transmission device (200) is interrupted based on the adjusted first value, identify a first group corresponding to the adjusted first value among the plurality of groups, and store information so that the wireless power transmission device (200) is included in the first group, and, when the first group corresponding to the adjusted first value among the plurality of groups is not identified, control the memory (130) to create a new group, and store information on the new group including the wireless power transmission device (200).

According to various embodiments, an electronic device (250) comprises a memory (130), at least one power receiving coil, and at least one processor (120), wherein the at least one processor (120) controls the electronic device (250) to receive first wireless power from a wireless power transmission device (200) using the at least one power receiving coil, compares a first difference value between a first temperature value of a first part and a second temperature value of a second part by wireless power received in a normal state, which are stored in advance in the memory, with a second difference value between a third temperature value of the first part and a fourth temperature value of the second part by the reception of the first wireless power, and adjusts a first value for a foreign matter detection operation when the second difference value exceeds the first difference value as a result of the comparison, and controls the at least one communication circuit to transmit information about the size of the first wireless power in which the adjusted first value is reflected to the wireless power transmission device. may be provided.

According to various embodiments, an electronic device may be provided, wherein the at least one processor is configured to compare the first temperature value with the third temperature value, and if the third temperature value exceeds the first temperature value, compare the first difference value with the second difference value.

According to various embodiments, a wireless power transmission device (200) may be provided, including at least one power transmitting coil (209), and at least one processor (120), wherein the at least one processor (120) receives information about the magnitude of first wireless power received by the wireless power reception device, in which a first value for a foreign matter detection operation is reflected from the wireless power reception device, and the first value is a value confirmed by the wireless power reception device based on a characteristic value of the wireless power transmission device (200), and confirms information about the magnitude of second wireless power transmitted to the wireless power reception device, and performs the foreign matter detection operation based on the magnitude of the wireless power reflected by the first value and the information about the magnitude of the second wireless power, and is set to stop transmission of the wireless power when a foreign matter is detected as a result of performing the foreign matter detection operation.

can be removed. The electronic device (250) is set to a preset time (as in 1704 of Fig. 17).

Claims (20)

In electronic devices,
At least one coil;
At least one sensor;
memory; and
comprising at least one processor;
The above memory, when executed by the at least one processor, causes the electronic device to:
Requesting identification information of the wireless power transmitter using a wireless power transmitter,
If the identification information is not received from the wireless power transmission device, the characteristic value of the wireless power transmission device is checked based on the at least one sensor,
Verify the wireless power transmission device corresponding to the above-mentioned confirmed characteristic value,
Confirm the first value for the foreign substance detection operation corresponding to the above-mentioned confirmed wireless power transmission device,
Storing instructions for controlling at least one communication circuit to transmit information about the size of wireless power received from the wireless power transmission device, in which the first value confirmed above is reflected, to the wireless power transmission device.
Electronic devices.
In paragraph 1,
The above instructions cause the electronic device to:
If the identification information is not received from the wireless power transmission device, the at least one communication circuit is set to be controlled to transmit a message requesting the identification information a specified number of times.
Electronic devices.
In paragraph 1,
The above memory is configured to store a plurality of values for the foreign matter detection operation associated with a plurality of groups, each of which includes at least one first wireless power transmitting device,
The above instructions cause the electronic device to:
Identify the first group corresponding to the identified wireless power transmission device among the above multiple groups,
Set to verify the first value corresponding to the verified first group among the above multiple values,
Electronic devices.
In the third paragraph,
The above memory further stores characteristic values of a plurality of wireless power transmitting devices and identification information of the plurality of wireless power transmitting devices,
The above instructions cause the electronic device to:
Using at least one sensor, a characteristic value of the wireless power transmitter is detected based on at least one component included in the wireless power transmitter,
Among the above characteristic values, the first characteristic value corresponding to the confirmed characteristic value is checked,
It is set to verify the first identification information corresponding to the first characteristic value among the above identification information,
The above instructions cause the electronic device to:
If a value corresponding to a characteristic value of the wireless power transmitter is not confirmed among the above characteristic values, a default value is confirmed as the first value,
It is set to transmit information about the size of the received wireless power, in which the above default value is reflected, to the wireless power transmission device,
The above characteristic value includes the EM (Electro Magnetic) value of the wireless power transmitter.
Electronic devices.
delete delete In paragraph 4,
The above instructions cause the electronic device to:
If the wireless charging operation is not interrupted after transmitting information about the size of the received wireless power to which the default value is reflected to the wireless power transmission device, the default value is adjusted and the at least one communication circuit is controlled to transmit information about the size of the received wireless power to which the adjusted default value is reflected to the wireless power transmission device.
When the wireless charging operation is stopped after transmitting information about the size of the received wireless power reflected by the adjusted default value to the wireless power transmission device, the adjusted default value is assigned to a new second group including the identified wireless power transmission device, and the memory is set to be controlled to store the adjusted default value.
Electronic devices.
In paragraph 1,
The above instructions cause the electronic device to:
If the wireless charging operation is not interrupted after transmitting information about the size of wireless power received from the wireless power transmission device, in which the first value confirmed above is reflected, to the wireless power transmission device,
Checking a first temperature of a first part of the electronic device and a second temperature of a second part of the electronic device,
Check the difference between the first temperature and the second temperature,
When the difference between the first temperature and the second temperature is greater than the threshold temperature, the at least one communication circuit is set to be controlled to transmit information about the size of the received wireless power reflected by the second value to the wireless power transmission device.
The first part of the electronic device comprises at least one power receiving coil, and the second part of the electronic device is spaced apart from the first part.
Electronic devices.
delete In Article 8,
Including more displays,
The above instructions cause the electronic device to:
If the wireless charging operation is not interrupted after the information about the size of the received wireless power reflected by the second value is transmitted to the wireless power transmission device, the second value is adjusted, and the at least one communication circuit is controlled to transmit the information about the size of the received wireless power reflected by the adjusted second value to the wireless power transmission device, and the display is set to be controlled to display a screen for requesting confirmation of a foreign substance.
When the wireless charging operation is stopped after the information about the size of the received wireless power reflecting the adjusted second value is transmitted to the wireless power transmission device, the group corresponding to the second value is checked,
The memory is set to control the above-described wireless power transmitting device to store information so that it is included in a group corresponding to the second value,
The above instructions cause the electronic device to:
If a group corresponding to the second value is not identified, a new group including the identified wireless power transmission device is created, and the memory is set to be controlled to store information about the new group including the identified wireless power transmission device.
Electronic devices.
delete delete delete In electronic devices,
memory;
At least one power receiving coil; and
comprising at least one processor;
The above memory, when executed by the at least one processor, causes the electronic device to:
Controlling the electronic device to receive a first wireless power from a wireless power transmitter using at least one power receiving coil;
Compare the reference value related to the second wireless power received in a normal state pre-stored in the above memory with the value related to the received first wireless power,
Based on the above comparison result, the first value corresponding to the first wireless power stored in advance in the memory for the foreign substance detection operation is adjusted,
Store instructions for controlling the at least one communication circuit to transmit information about the size of the first wireless power, in which the adjusted first value is reflected, to the wireless power transmission device;
The above instructions cause the electronic device to:
Compare the first temperature value of the first part of the electronic device by the second wireless power pre-stored in the memory and the second temperature value of the first part of the electronic device by the received first wireless power,
If the second temperature value exceeds the first temperature value, a first difference between the second temperature value and the third temperature value of the second part of the electronic device by the received first wireless power is compared with a second difference between the first temperature value and the fourth temperature value of the second part of the electronic device by the second wireless power pre-stored in the memory,
If the first difference exceeds the second difference, the first value is set to be adjusted.
Electronic devices.
delete delete delete delete In electronic devices,
memory;
At least one power receiving coil; and
comprising at least one processor;
The above memory, when executed by the at least one processor, causes the electronic device to:
Controlling the electronic device to receive a first wireless power from a wireless power transmitter using at least one power receiving coil;
Compare a first difference value between a first temperature value of the first part and a second temperature value of the second part by wireless power received in a normal state pre-stored in the above memory, and a second difference value between a third temperature value of the first part and a fourth temperature value of the second part by reception of the first wireless power,
If the second difference value of the above comparison result exceeds the first difference value, the first value for the foreign substance detection operation is adjusted,
Store instructions for controlling the at least one communication circuit to transmit information about the size of the first wireless power, in which the adjusted first value is reflected, to the wireless power transmission device;
The above instructions cause the electronic device to:
Compare the first temperature value and the third temperature value,
If the third temperature value exceeds the first temperature value, the first difference value and the second difference value are set to be compared.
Electronic devices. delete

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