CN108808871A - A kind of wireless charging receiving terminal, wireless charging method and mobile terminal - Google Patents

Abstract

The present invention provides a wireless charging receiving end, a wireless charging method, and a mobile terminal, wherein the wireless charging receiving end includes: a micro control unit connected to a battery module in the mobile terminal for charging During the wireless charging process, information exchange is performed with the wireless charging transmitting end, so as to demodulate the energy transmitted by the wireless charging transmitting end to the wireless charging receiving end, and during the wireless charging process, the battery module is used for power supply. In the solution of the present invention, since the battery module is used to supply power to the micro control unit in the wireless charging receiving end, compared with the existing wireless charging process, the charging speed during wireless charging can be increased by increasing the output voltage of the wireless charging receiving end, Achieve fast charging.

Description

A wireless charging receiving end, wireless charging method and mobile terminal

technical field

The present invention relates to the technical field of wireless communication, in particular to a wireless charging receiving end, a wireless charging method and a mobile terminal.

Background technique

With the development of wireless communication technology, wireless charging technology has gradually become the mainstream, and people's demand for wireless charging is increasing. With the help of the wireless charging process, the mobile terminal can be easily and conveniently charged. Compared with the wired charging method, the connection of the charging wire can be omitted.

At present, the wireless charging receiver mainly includes a receiving coil 01, a synchronous rectifier 02, a low dropout regulator (Low Dropout Regulator, LDO) 03 and a micro control unit (Micro Control Unit, MCU) 04, as shown in Figure 1. Wherein, the receiving coil 01 is used to generate induced electromotive force in the alternating magnetic field generated by the transmitting coil of the wireless charging transmitting end, generate alternating current, and output the generated alternating current to the synchronous rectifier 02; the synchronous rectifier 02 is used to rectify the input alternating current into direct current, and output voltage to the charging chip 05 in the mobile terminal, so that the charging chip 05 charges the battery module 06 in the mobile terminal; the LDO 03 is used to reduce the output voltage of the synchronous rectifier to a voltage that meets the power supply requirements of the MCU 04 , to supply power to the MCU 04; the MCU 04 is used to exchange information with the wireless charging transmitter during the wireless charging process, so as to demodulate the energy of the transmitting coil to the receiving coil.

When using the wireless charging receiving terminal for charging, the output voltage of the receiving coil 01 can only reach a maximum of 12V at present. In order to achieve fast charging, if the output voltage of the receiving coil 01 is increased, since the output voltage is stepped down by the LDO 03 to supply power to the MCU 04, the power supply of the MCU 04 is generally required to be 1.8V, so the step-down efficiency of the LDO 03 will be reduced If the output current of the receiving coil 01 is increased, the thermal power of the receiving coil 01 will be large, and the energy loss will be large, which will affect the charging effect.

Contents of the invention

Embodiments of the present invention provide a wireless charging receiving end, a wireless charging method, and a mobile terminal, so as to solve the problem that the wireless charging receiving end cannot increase the power supply of the micro-control unit of the existing wireless charging receiving end because it is provided by the wireless charging receiving end. voltage to increase the charging speed.

In the first aspect, an embodiment of the present invention provides a wireless charging receiving terminal, which is applied to a mobile terminal, including:

A micro control unit, the micro control unit is connected to the battery module in the mobile terminal, and is used for information interaction with the wireless charging transmitter during the wireless charging process, so as to demodulate the energy transmitted by the wireless charging transmitter To the wireless charging receiving end, and during the wireless charging process, use the battery module to supply power.

In a second aspect, an embodiment of the present invention further provides a mobile terminal, including the above-mentioned wireless charging receiving end.

In the third aspect, the embodiment of the present invention also provides a wireless charging method, which is applied to the above-mentioned mobile terminal, including:

During the wireless charging process, using the battery module in the mobile terminal to supply power to the micro control unit;

Wherein, the micro control unit is located in the wireless charging receiving end, and is used for information interaction with the wireless charging transmitting end during the wireless charging process, so as to demodulate the energy transmitted by the wireless charging transmitting end to the wireless charging transmitting end. Charging receiver.

In a fourth aspect, an embodiment of the present invention also provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the computer program is executed by the The processor implements the steps of the above wireless charging method when executed.

In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein, when the computer program is executed by a processor, the steps of the above wireless charging method are implemented.

In the embodiment of the present invention, during the wireless charging process, the battery module in the mobile terminal is used to supply power to the micro control unit in the wireless charging receiving end, and the output voltage can be increased at the same output power to avoid failure due to power supply to the micro control unit. Affects the charging effect, so compared with the existing wireless charging process, the charging speed during wireless charging can be improved by increasing the output voltage of the wireless charging receiving end, and fast charging can be realized.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required in the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of an existing wireless charging receiving end;

FIG. 2 is a schematic structural diagram of a wireless charging receiving end according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another wireless charging receiving end according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another wireless charging receiving end according to an embodiment of the present invention;

5 is a schematic diagram of a wireless charging method according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

Detailed ways

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required in the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

First of all, in the existing wireless charging receiving end, as shown in Figure 1, since the receiving coil has the same output power, the larger the output voltage, the smaller the output current, and the smaller the output current, the receiving coil etc. The thermal power of the receiving coil is smaller, so the thermal power of the receiving coil can be reduced by increasing the output voltage of the receiving coil, thereby reducing energy loss and increasing the charging speed. For example, if the output power of the receiving coil is 12W, the output voltage is 12V, and the output current is 1A, then when the output power is maintained at 12W and the output voltage is increased to 15V, the output current will be reduced to 0.8A; suppose the impedance of the receiving coil is 50 milliohms, the thermal power of the receiving coil will be reduced from 0.05W to 0.032W, and the heat will be reduced by about 36%. If the output voltage of the receiving coil is further increased, the corresponding heat loss will be further reduced.

In order to avoid affecting the charging effect due to power supply to the MCU after increasing the output voltage under the same output power, the embodiment of the present invention can increase the charging speed by changing the power supply mode of the MCU. Specifically, in the embodiment of the present invention, the MCU can be connected to the battery module in the mobile terminal, and is used to use the battery module to supply power during the wireless charging process, so that the wireless charging receiving end can increase the charging speed by increasing the output voltage, thereby Achieve fast charging.

Referring to FIG. 2 , an embodiment of the present invention provides a wireless charging receiving terminal 11 , which is applied to a mobile terminal 1 and includes a micro control unit MCU 111 . Wherein, the MCU 111 is connected with the battery module 12 in the mobile terminal, and is used to supply power by the battery module 12 during the wireless charging process, so that the wireless charging receiving end 11 can increase the charging speed by increasing the output voltage. The MCU 111 can be used to exchange information with the wireless charging transmitter during the wireless charging process, so as to demodulate the energy transmitted by the wireless charging transmitter to the wireless charging receiver 11 . During specific implementation, the MCU 111 may include some analog-to-digital interfaces, communication interfaces, such as an integrated circuit bus (Inter-Integrated Circuit, IIC) interface, a storage unit, a circuit for detecting a transmitting end, and the like.

The wireless charging receiving terminal 11 of the embodiment of the present invention uses the battery module 12 to supply power to the MCU 111 during the wireless charging process, and can increase the output voltage under the same output power to avoid affecting the charging effect due to powering the MCU 111, thereby compared with In the existing wireless charging process, the charging speed during wireless charging can be increased by increasing the output voltage of the wireless charging receiving end 11 to realize fast charging.

Further, referring to FIG. 2 , the wireless charging receiving end 11 may further include a charging unit 112 (not shown in the figure) and a power supply control unit 113 .

Wherein, the charging unit 112 is connected with the charging chip 13 in the mobile terminal 1, and is used to convert the energy emitted by the wireless charging transmitter into a direct current that meets the power requirements of the charging chip 13, and output voltage to the charging chip 13, so that the The charging chip 13 charges the battery module 12 . Optionally, as shown in FIG. 2, the charging unit 112 may include a receiving coil 1121 and a synchronous rectifier 1122, wherein the receiving coil 1121 is connected to the synchronous rectifier 1122 for the alternating magnetic field generated by the transmitting coil at the wireless charging transmitting end. The induced electromotive force is generated to generate alternating current, and the generated alternating current is output to the synchronous rectifier 1122. The synchronous rectifier 1122 is used to rectify the input alternating current into direct current, and output the voltage to the charging chip 13, so that the charging chip 13 is a battery module 12 Charge. It can be understood that 1121 shown in FIG. 2 is an equivalent model of the receiving coil; in specific implementation, in order to ensure that the charging chip 13 is provided with a stable and reliable input voltage that meets the requirements, the synchronous rectifier 1122 and the charging chip 13 can be connected to each other. Add components, such as LDO or BUCK circuit, to process the direct current output by the synchronous rectifier 1122 and output the obtained direct current to the charging chip 13 .

The power supply control unit 113 is respectively connected with the charging unit 112 and the battery module 12, and is used to detect whether the power supply voltage of the battery module 12 is greater than a preset voltage threshold; when the power supply voltage of the battery module 12 is greater than a preset voltage threshold, control the The battery module 12 supplies power to the MCU 111 ; and when the supply voltage of the battery module 12 is less than or equal to a preset voltage threshold, the charging unit 112 is controlled to supply power to the MCU 111 . When detecting the power supply voltage of the battery module 12, the corresponding power supply voltage can be read through the battery feedback line, and the specific detection time value can be preset to be detected every 5 seconds.

It should be noted that the reason for detecting the power supply voltage of the battery module 12 here is that the mobile terminal may perform wireless charging when the battery module has no power or has little power. At this time, the power supply voltage of the battery module It will be very small (less than or equal to the preset voltage threshold). At this time, if the battery module is used to supply power to the MCU to realize the wireless charging process, the normal power supply of the MCU may not be guaranteed, which will cause the MCU to fail to work normally, resulting in the failure of the wireless charging process. . Since the above-mentioned preset voltage threshold is generally set close to the hardware power-on voltage of the mobile terminal, the period from the start of wireless charging to being greater than the preset voltage threshold will not be very long, so the energy loss caused by using the charging unit 112 for power supply It will be less, usually at the level of a few mA, and will not affect the charging speed.

In this way, by detecting whether the power supply voltage of the battery module is greater than the preset voltage threshold during the wireless charging process, the battery module can be used to supply power to the MCU when the power supply voltage of the battery module is large enough, thereby ensuring the normal operation of the MCU and the wireless charging process. carried out.

In the embodiment of the present invention, as shown in FIG. 3 and FIG. 4 , the power supply control unit 113 may include a low dropout linear regulator LDO 1131 , a control module 1132 , a detection module (not shown) and a switch assembly 1133 .

Wherein, the LDO 1131 is used to reduce the output voltage of the charging unit 112 to a voltage that meets the power supply requirement of the MCU 111 .

The control module 1132 is respectively connected with the detection module and the switch assembly 1133, and is used to control the detection module to detect whether the power supply voltage of the battery module 12 is greater than the preset voltage threshold; when the power supply voltage of the battery module 12 is greater than the preset voltage threshold , control the switch component 1133 so that the battery module 12 supplies power to the MCU 111;

Specifically, as shown in FIG. 3 , the switch assembly 1133 may include a first switch 11331 and a second switch 11332 . Wherein, the first end of the first switch 11331 is connected to one end of the LDO 1131, the other end of the LDO 1131 is connected to the charging unit 112, the second end of the first switch 11331 is connected to the MCU 111, and the first The third end of the switch 11331 is connected with the control module 1132 . The first end of the second switch is connected to the battery module 12 , the second end of the second switch 11332 is connected to the MCU 111 , and the third end of the second switch 11332 is connected to the control module 1132 . The control module 1132 is used to control the first switch 11331 to open and control the second switch 11332 to close when the power supply voltage of the battery module 12 is greater than a preset voltage threshold; and when the power supply voltage of the battery module 12 is less than or When equal to the preset voltage threshold, the first switch 11331 is controlled to be closed and the second switch 11332 is controlled to be opened.

Alternatively, as shown in FIG. 4 , the switch assembly 1133 may include a third switch 11333 and a fourth switch 11334 . Wherein, the first end of the third switch 11333 is connected to the charging unit 112, the second end of the third switch 11333 is connected to one end of the LDO 1131, the other end of the LDO 1131 is connected to the MCU 111, and the third switch The third end of 11333 is connected with the control module 1132 . The first end of the fourth switch 11334 is connected to the battery module 12 , the second end of the fourth switch 11334 is connected to the MCU 111 , and the third end of the fourth switch 11334 is connected to the control module 1132 . The control module 1132 is used to control the third switch 11333 to open and control the fourth switch 11334 to close when the power supply voltage of the battery module 12 is greater than a preset voltage threshold; and when the power supply voltage of the battery module 12 is less than or When equal to the preset voltage threshold, the third switch 11333 is controlled to be closed and the fourth switch 11334 is controlled to be opened.

It can be understood that, for those skilled in the art, the switch component 1133 may also be a single pole double throw switch, or include at least three switches, which is not limited in this embodiment of the present invention.

In addition, an embodiment of the present invention also provides a mobile terminal, including any one of the wireless charging receiving terminals 11 described above.

Referring to Fig. 5, an embodiment of the present invention also provides a wireless charging method, which is applied to the above-mentioned mobile terminal, including:

Step 501: During the wireless charging process, use the battery module in the mobile terminal to supply power to the micro control unit.

Among them, using the battery module to supply power to the micro control unit can make the wireless charging receiving end increase the charging speed by increasing the output voltage. The micro control unit is located in the wireless charging receiving end, and is used for information interaction with the wireless charging transmitting end during the wireless charging process, so as to demodulate the energy transmitted by the wireless charging transmitting end to the wireless charging receiving end. end.

In the wireless charging method of the embodiment of the present invention, during the wireless charging process, the battery module in the mobile terminal is used to supply power to the micro control unit in the wireless charging receiving end, and the output voltage can be increased under the same output power to avoid the The unit power supply affects the charging effect, so compared with the existing wireless charging process, the charging speed during wireless charging can be improved by increasing the output voltage of the wireless charging receiving end, and fast charging can be realized.

Optionally, step 501 may include:

During the wireless charging process, detecting whether the power supply voltage of the battery module is greater than a preset voltage threshold;

When the power supply voltage of the battery module is greater than the preset voltage threshold, using the battery module to supply power to the micro control unit;

Wherein, when the power supply voltage of the battery module is less than or equal to the preset voltage threshold, the charging unit in the wireless charging receiving end is used to supply power to the micro control unit, and the charging unit is used to transmit wireless charging The energy transmitted by the terminal is converted into DC power meeting the power requirements of the charging chip in the mobile terminal, and the output voltage is sent to the charging chip, so that the charging chip charges the battery module.

An embodiment of the present invention also provides a mobile terminal, including a processor, a memory, and a computer program stored in the memory and operable on the processor, wherein the computer program is implemented when executed by the processor. The various processes of the foregoing wireless charging method embodiments can achieve the same technical effect, and will not be repeated here to avoid repetition.

Specifically, FIG. 6 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention. The mobile terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, Display unit 606 , user input unit 607 , interface unit 608 , memory 609 , processor 610 , power supply 611 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 6 does not constitute a limitation on the terminal, and the mobile terminal may include more or less components than shown in the figure, or combine some components, or arrange different components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.

Wherein, the mobile terminal 600 may include a wireless charging receiving end 612 . The wireless charging receiving end 612 includes a micro control unit MCU (not shown in the figure), and the MCU is connected to the power supply 611 in the mobile terminal 600 for information interaction with the wireless charging transmitting end during the wireless charging process, so as to transmit the wireless charging The energy transmitted by the terminal is demodulated to the wireless charging receiving terminal 612, and during the wireless charging process, the power supply 611 is used to supply power, so that the wireless charging receiving terminal 612 can increase the charging speed by increasing the output voltage.

Further, the wireless charging receiving end 612 may further include a charging unit (not shown in the figure) and a power supply control unit (not shown in the figure). Wherein, the charging unit is connected with the charging chip in the mobile terminal, and is used to convert the energy emitted by the wireless charging transmitter into DC power that meets the power requirements of the charging chip, and output voltage to the charging chip, so that the charging chip charges the power supply 611 . The power supply control unit is connected with the charging unit and the power supply 611 respectively, and is used to detect whether the power supply voltage of the power supply 611 is greater than a preset voltage threshold; when the power supply voltage of the power supply 611 is greater than the preset voltage threshold, the control power supply 611 supplies power to the MCU; When the power supply voltage of the power supply 611 is less than or equal to the preset voltage threshold, the charging unit is controlled to supply power to the MCU.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 610; in addition, the Uplink data is sent to the base station. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 601 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides users with wireless broadband Internet access through the network module 602, such as helping users send and receive emails, browse web pages, and access streaming media.

The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 can also provide audio output related to a specific function performed by the mobile terminal 600 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.

The input unit 604 is used for receiving audio or video signals. The input unit 604 may include a graphics processing unit (Graphics Processing Unit, GPU) 6041 and a microphone 6042, and the graphics processing unit 6041 is used for still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The data is processed. The processed image frames may be displayed on the display unit 606 . The image frames processed by the graphics processor 6041 may be stored in the memory 609 (or other storage media) or sent via the radio frequency unit 601 or the network module 602 . The microphone 6042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 601 for output in the case of a phone call mode.

The mobile terminal 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 6061 and the display panel 6061 when the mobile terminal 600 moves to the ear / or backlighting. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer posture calibration), vibration recognition related functions (such as pedometer, knocking), etc.; sensor 605 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared ray Sensors, etc., will not be described in detail here.

The display unit 606 is used to display information input by the user or information provided to the user. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like.

The user input unit 607 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072 . The touch panel 6071, also referred to as a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable object or accessory such as a finger or a stylus on the touch panel 6071 or near the touch panel 6071). operate). The touch panel 6071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the For the processor 610, receive the command sent by the processor 610 and execute it. In addition, the touch panel 6071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 6071 , the user input unit 607 may also include other input devices 6072 . Specifically, other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Furthermore, the touch panel 6071 can be covered on the display panel 6061, and when the touch panel 6071 detects a touch operation on or near it, it will be sent to the processor 610 to determine the type of the touch event, and then the processor 610 can The type of event provides a corresponding visual output on the display panel 6061. Although in FIG. 6, the touch panel 6071 and the display panel 6061 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 6071 and the display panel 6061 can be integrated to Realize the input and output functions of the terminal, which is not limited here.

The interface unit 608 is an interface for connecting an external device to the mobile terminal 600 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 608 can be used to receive input from an external device (for example, data information, power, etc.) transfer data between devices.

The memory 609 can be used to store software programs as well as various data. The memory 609 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); Data created by the use of mobile phones (such as audio data, phonebook, etc.), etc. In addition, the memory 609 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The processor 610 is the control center of the mobile terminal, and uses various interfaces and lines to connect various parts of the entire terminal, by running or executing software programs and/or modules stored in the memory 609, and calling data stored in the memory 609, Execute various functions of the terminal and process data, so as to monitor the terminal as a whole. The processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 610 .

The mobile terminal 600 can also include a power supply 611 (such as a battery) for supplying power to various components. Preferably, the power supply 611 can be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. and other functions.

In addition, the mobile terminal 600 may also include some unshown functional modules, which will not be repeated here.

The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the above wireless charging method embodiment is realized, and the same technology can be achieved. Effect, in order to avoid repetition, will not repeat them here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive. Those of ordinary skill in the art will Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, all of which belong to the protection of the present invention.

Claims (9)

1. A wireless charging receiver, applied to a mobile terminal, characterized in that it comprises: A micro control unit, the micro control unit is connected to the battery module in the mobile terminal, and is used for information interaction with the wireless charging transmitter during the wireless charging process, so as to demodulate the energy transmitted by the wireless charging transmitter To the wireless charging receiving end, and during the wireless charging process, use the battery module to supply power. 2. The wireless charging receiving end according to claim 1, characterized in that, the wireless charging receiving end further comprises: a charging unit and a power supply control unit; Wherein, the charging unit is connected to the charging chip in the mobile terminal, and is used to convert the energy emitted by the wireless charging transmitter into direct current that meets the power requirements of the charging chip, and output voltage to the charging chip, making the charging chip charge the battery module; The power supply control unit is respectively connected with the charging unit and the battery module, and is used to detect whether the power supply voltage of the battery module is greater than a preset voltage threshold; when the power supply voltage of the battery module is greater than the preset voltage threshold When the battery module is controlled to supply power to the micro control unit; when the power supply voltage of the battery module is less than or equal to the preset voltage threshold, the charging unit is controlled to supply power to the micro control unit. 3. The wireless charging receiver according to claim 2, wherein the power supply control unit comprises a low dropout linear regulator, a control module, a detection module and a switch assembly; Wherein, the low dropout linear voltage regulator is used to reduce the output voltage of the charging unit to a voltage that meets the power supply requirements of the micro control unit; The control module is respectively connected with the detection module and the switch assembly, and is used to control the detection module to detect whether the power supply voltage of the battery module is greater than a preset voltage threshold; when the power supply voltage of the battery module is greater than the When the voltage threshold is preset, the switch assembly is controlled so that the battery module supplies power to the micro control unit; when the power supply voltage of the battery module is less than or equal to the preset voltage threshold, the switch assembly is controlled, The low dropout linear voltage regulator is made to supply power to the micro control unit. 4. The wireless charging receiving terminal according to claim 3, wherein the switch assembly comprises a first switch and a second switch; Wherein, the first end of the first switch is connected to one end of the low dropout linear voltage regulator, the other end of the low dropout linear voltage regulator is connected to the charging unit, and the second end of the first switch The terminal is connected to the micro control unit, and the third terminal of the first switch is connected to the control module; The first end of the second switch is connected to the battery module, the second end of the second switch is connected to the micro control unit, and the third end of the second switch is connected to the control module; The control module is used to control the opening of the first switch and the closing control of the second switch when the power supply voltage of the battery module is greater than the preset voltage threshold; and when the power supply voltage of the battery module When it is less than or equal to the preset voltage threshold, the first switch is controlled to be closed and the second switch is controlled to be opened. 5. The wireless charging receiving terminal according to claim 3, wherein the switch assembly comprises a third switch and a fourth switch; Wherein, the first end of the third switch is connected to the charging unit, the second end of the third switch is connected to one end of the low dropout linear voltage regulator, and the other end of the low dropout linear voltage regulator is One end is connected to the micro control unit, and the third end of the third switch is connected to the control module; The first terminal of the fourth switch is connected to the battery module, the second terminal of the fourth switch is connected to the micro control unit, and the third terminal of the fourth switch is connected to the control module; The control module is used to control the opening of the third switch and the closing control of the fourth switch when the power supply voltage of the battery module is greater than the preset voltage threshold; and when the power supply voltage of the battery module When it is less than or equal to the preset voltage threshold, the third switch is controlled to be closed and the fourth switch is controlled to be opened. 6. A mobile terminal, characterized by comprising the wireless charging receiving terminal according to any one of claims 1 to 5. 7. A wireless charging method, applied to the mobile terminal according to claim 6, characterized in that, comprising: During the wireless charging process, using the battery module in the mobile terminal to supply power to the micro control unit; Wherein, the micro control unit is located in the wireless charging receiving end, and is used for information interaction with the wireless charging transmitting end during the wireless charging process, so as to demodulate the energy transmitted by the wireless charging transmitting end to the wireless charging receiving end. end. 8. The wireless charging method according to claim 7, said using the battery module in the mobile terminal to supply power to the micro control unit, comprising: Detecting whether the power supply voltage of the battery module is greater than a preset voltage threshold; When the power supply voltage of the battery module is greater than the preset voltage threshold, using the battery module to supply power to the micro control unit; Wherein, when the power supply voltage of the battery module is less than or equal to the preset voltage threshold, the charging unit in the wireless charging receiving end is used to supply power to the micro control unit, and the charging unit is used to transmit wireless charging The energy transmitted by the terminal is converted into DC power meeting the power requirements of the charging chip in the mobile terminal, and the output voltage is sent to the charging chip, so that the charging chip charges the battery module. 9. A mobile terminal, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, characterized in that, when the computer program is executed by the processor, the The steps of the wireless charging method described in claim 7 or 8.