CN104467109B - Method for supplying power to electronic equipment and electronic equipment - Google Patents

Abstract

The invention is applicable to the field of charging, and provides a method for supplying power to electronic equipment and the electronic equipment. The electronic device includes a charging interface for connecting to a power supply device, the charging interface includes a power pin and a data pin, the power pin is used to receive a charging electrical signal sent by the power supply device, and the data pin For receiving the data signal sent by the power supply device; the power supply method includes: determining the voltage of the data pin; when the voltage of the data pin is greater than or equal to a first voltage threshold, disconnecting the data signal passing through the data Pins are electrical connections for data transfer. Avoid burning other circuits in the electronic device that are electrically connected to the data pin due to an over-high voltage on the data pin.

Description

Method and electronic device for powering an electronic device

technical field

The invention belongs to the field of charging, and in particular relates to a method for supplying power to electronic equipment and the electronic equipment. .

Background technique

Electronic equipment refers to equipment composed of electronic components such as integrated circuits, transistors, and electronic tubes; for some electronic equipment, it can also be programmed to achieve various functions. At present, electronic equipment has been widely developed and applied in various industries, including: electronic computers, robots controlled by programmed controllers, numerical control and program-controlled systems, etc.; Including smart home appliances.

With the progress of the times, the Internet and mobile communication networks provide a large number of functional applications. Users can not only use electronic devices for traditional applications, such as: use smart phones to answer or make calls; at the same time, users can also use electronic devices for web browsing, picture transmission, games, etc. As the frequency of use of electronic devices increases, the electronic devices need to be charged frequently.

Therefore, both the data pin and the power pin are generally designed into the charging interface of the electronic device, not only the power pin in the charging interface can be used to supply power to the electronic device and/or charge the battery in the electronic device, It is also possible to perform data interaction with the power supply device through the data pin in the charging interface. However, if the voltage of the data pin is too high, it will damage the circuit in the subsequent stage of the charging interface in the electronic device.

Contents of the invention

The object of the present invention is to provide a method for supplying power to electronic equipment and electronic equipment, so as to solve the problem in the prior art that the circuit located at the rear stage of the charging interface is damaged due to the excessive voltage on the data pin in the charging interface. question.

In a first aspect, the present invention provides a power supply method, the electronic device includes a charging interface for connecting to a power supply device, the charging interface includes a power pin and a data pin, and the power pin is used to receive the power supply The charging electrical signal sent by the device, the data pin is used to receive the data signal sent by the power supply device, and the power supply method includes:

determining the voltage of the data pin;

When the voltage of the data pin is greater than or equal to a first voltage threshold, the electrical connection of data transmission through the data pin is disconnected.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the determining the voltage of the data pin includes:

determining the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface is switched from disconnection to connection;

The voltage of the data pin is determined when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface is switched from being connected to being disconnected.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first voltage threshold is determined by an input voltage of the power supply pin.

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect, in a third possible implementation of the first aspect, the method further includes:

sending a charging instruction specifying a charging voltage to the power supply device;

receiving a charging response sent by the power supply device according to the charging instruction;

According to the charging response, turn on the charging circuit for charging the battery cells by K charging circuits, wherein the K charging circuits belong to all or part of the charging circuits of the electronic device.

In combination with the first aspect or the first implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect, the fourth possible implementation of the first aspect In the method, before the charging circuit for charging the battery cells by turning on the K charging circuits, the method further includes:

determining the current charging phase of the electronic device;

According to the current charging stage, the number K of charging circuits for charging the battery cells is determined.

In combination with the second possible implementation of the first aspect or the third possible implementation of the first aspect or the fourth possible implementation of the first aspect, in the fifth possible implementation of the first aspect , the method also includes:

determining the number M of charging circuits for charging the batteries;

Turning on the charging circuit for charging the battery cells with M charging circuits, wherein the M charging circuits belong to all or part of the charging circuits of the electronic device, and wherein the K is different from the M.

In combination with the first aspect or the first implementation mode of the first aspect or the second possible implementation mode of the first aspect or the third possible implementation mode of the first aspect or the fourth possible implementation mode of the first aspect Or in the fifth possible implementation of the first aspect, in the sixth possible implementation of the first aspect, the determining the number M of charging circuits for charging the batteries includes:

Determine the number M of charging circuits for charging the batteries according to at least one of the following parameters:

Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state.

In combination with the first aspect or the first implementation mode of the first aspect or the second possible implementation mode of the first aspect or the third possible implementation mode of the first aspect or the fourth possible implementation mode of the first aspect Or the fifth possible implementation of the first aspect or the sixth possible implementation of the first aspect, in the seventh possible implementation of the first aspect, the method further includes:

When at least one of the following conditions is met, all charging circuits for charging the batteries are disconnected:

Wherein, the conditions include: a disconnection command input by the user is received, the temperature of the battery core of the electronic device is greater than or equal to the temperature threshold, the positive input voltage of the battery core is greater than or equal to the second voltage threshold and the battery capacity greater than or equal to the power threshold.

In a second aspect, the present invention provides an electronic device, the electronic device includes a control module and a charging interface for connecting to a power supply device, the control module is electrically connected to the charging interface, and the charging interface includes a power pin and a charging interface. A data pin, the power supply pin is used to receive the charging electrical signal sent by the power supply device, and the data pin is used to receive the data signal sent by the power supply device;

The control module is used for: determining the voltage of the data pin, and disconnecting the electrical connection of the data transmission through the data pin when the voltage of the data pin is greater than or equal to a first voltage threshold.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the control module is specifically configured to: when determining that the electrical connection between the power supply interface of the power supply device and the charging interface changes from disconnection to connection , determine the voltage of the data pin;

The control module is specifically configured to: determine the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface is switched from being connected to being disconnected.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the first voltage threshold is determined by an input voltage of the power supply pin.

With reference to the second aspect or the first possible implementation of the second aspect or the second possible implementation of the second aspect, in a third possible implementation of the second aspect, the electronic device further includes N charging circuits and batteries connected in parallel, the control modules are electrically connected to the N charging circuits respectively;

The control module is further configured to: send a charging command specifying a charging voltage to the power supply device, receive a charging response sent by the power supply device according to the charging command, and conduct K charging circuits to charge the battery cells according to the charging response. A charging circuit for charging, wherein the K is less than or equal to the N.

In combination with the second aspect or the first implementation manner of the second aspect or the second possible implementation manner of the second aspect or the third possible implementation manner of the second aspect, the fourth possible implementation manner of the second aspect In the manner, the control module is further configured to: determine the current charging stage of the electronic device, and determine the number K of charging circuits for charging the battery cells according to the current charging stage.

In combination with the second possible implementation of the second aspect or the third possible implementation of the second aspect or the fourth possible implementation of the second aspect, in the fifth possible implementation of the second aspect , the control module is also used to: determine the number M of charging circuits for charging the batteries;

Conducting a charging circuit for charging the battery cells by turning on M charging circuits, wherein the M charging circuits belong to all or part of the charging circuits of the electronic device, wherein the K is different from the M, and the K is less than or equal to the N.

In combination with the second aspect or the first implementation manner of the second aspect or the second possible implementation manner of the second aspect or the third possible implementation manner of the second aspect or the fourth possible implementation manner of the second aspect Or in the fifth possible implementation of the second aspect, in the sixth possible implementation of the second aspect, the control module is further configured to: determine, according to at least one of the following parameters, The number M of charging circuits performing charging:

Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state.

In combination with the second aspect or the first implementation manner of the second aspect or the second possible implementation manner of the second aspect or the third possible implementation manner of the second aspect or the fourth possible implementation manner of the second aspect Or the fifth possible implementation of the second aspect or the sixth possible implementation of the second aspect, in the seventh possible implementation of the second aspect, the electronic device further includes a switch module, the The switch module is connected between the charging interface and the charging circuit;

The control module is electrically connected to the switch module, and the control module is also used to: during the process of charging the battery cell through the charging interface, the switch module and the charging circuit in sequence, when the following conditions are met When at least one of the above is used, the switch module is controlled to disconnect all charging circuits for charging the batteries:

Wherein, the conditions include: a disconnection command input by the user is received, the temperature of the battery core of the electronic device is greater than or equal to the temperature threshold, the positive input voltage of the battery core is greater than or equal to the second voltage threshold and the battery capacity greater than or equal to the power threshold.

In the method and electronic device for power supply provided by the embodiments of the present invention, by determining the voltage of the data pin of the charging interface of the electronic device, when the voltage of the data pin is greater than or equal to the voltage threshold, the data passing through the data pin is disconnected. The electrical connection of the data transmission of the pin can prevent other circuits in the electronic device that are electrically connected to the data pin from being burned due to an excessively high voltage on the data pin.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following descriptions are only of the present invention. For some embodiments, those skilled in the art can also obtain other drawings according to these drawings without paying creative efforts.

Fig. 1 is a working flowchart of the power supply method provided by the embodiment of the present invention;

Fig. 2 is a kind of working flowchart of the power supply method provided by the embodiment of the present invention;

Fig. 3 is an optimized workflow diagram of the power supply method provided by the embodiment of the present invention;

FIG. 4 is a structural diagram of an electronic device provided by an embodiment of the present invention;

FIG. 5 is an optimized composition structure of an electronic device provided by an embodiment of the present invention;

FIG. 6 is another optimized composition structure of the electronic device provided by the embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

An electronic device provided by an embodiment of the present invention includes a charging interface, a switch module, a charging circuit, a battery cell, and the like. Batteries are used to power electronic devices. The charging interface, the switch module, the charging circuit and the battery core are electrically connected in sequence.

It is worth noting that the electronic device includes N charging circuits, where N is a positive integer greater than 1; the N charging circuits are connected in parallel between the switch module and the battery cell. As an optional implementation manner of the embodiment of the present invention, the charging circuit is a circuit composed of electronic devices. As an optional implementation manner of the embodiment of the present invention, the charging circuit is a charging chip.

It is worth noting that the electronic device also has a control module; as one embodiment, the control module is realized by using an existing controller of the electronic device; as yet another embodiment, the control module is added to the electronic device , that is, the control module is different from the existing controller of the electronic equipment; as the specific implementation of the control module, the embodiment of the present invention does not limit it, and a data processing function such as a processor, a single-chip microcomputer or a programmable logic device can be used. circuit implementation.

It is worth noting that the control module is electrically connected with the switch module, and the control module controls the conduction or disconnection of the switch module; the control module can not only control the conduction or disconnection of the data pin of the charging interface, but also control The power supply pin of the charging interface is connected or disconnected from all charging circuits. For example, when the control module receives the conduction instruction, the control switch module conducts the electrical connection between the charging interface and the charging circuit; when the control module receives the disconnection instruction, the control switch module disconnects the electrical connection between the charging interface and the charging circuit. It should be noted that, the embodiment of the present invention does not limit which electronic devices are used to implement the switch module, nor the circuit connection relationship between the electronic devices. For example, the switch module uses a MOS tube to control the on or off of the electrical signal between the power supply pin and the charging circuit; the gate, source and drain of the MOS tube are respectively connected to the control module and the power lead of the charging interface. Pin and each charging circuit; the control module controls whether to conduct the electrical connection between the charging interface and the charging circuit by controlling the level signal output to the gate of the MOS tube. For example, the switch module uses MOS transistors to control the on or off of data transmission between the power supply pin and the control module; the gate, source and drain of the MOS transistors are respectively connected to the control terminal of the control module and the charging interface The data pin of the control module and the data terminal of the control module; the control module controls the level signal output from the control terminal to the gate of the MOS tube, so as to control whether to conduct the electrical connection between the charging interface and the data terminal of the control module.

It is worth noting that the control module is also electrically connected to each charging circuit, and the control module can control whether to charge the battery cell through a certain charging circuit. For example, when the control module receives a distributed charging instruction, the control module only turns on the plurality of charging circuits specified by the distributed charging instruction, and conducts the electrical connection between the switch module and the battery cell through the multiple charging circuits specified by the distributed charging instruction. , only forming a charging circuit for charging the batteries by multiple charging circuits designated by the distributed charging instruction.

For the charging interface in the electronic equipment, after the power supply interface of the power supply equipment is electrically connected to the charging interface of the electronic equipment, the data pins in the power supply interface of the power supply equipment are electrically connected to the data pins in the electronic equipment, and the power supply interface of the power supply equipment The power supply pin in the power supply interface is electrically connected to the power supply pin in the electronic device; the power supply device can transmit data through the data pin in the power supply interface and the data pin in the electronic device; the data that can be transmitted through the data pin is not limited to Data related to charging can also transmit data such as audio and video files, document files, etc. In addition, the power supply device can output electrical signals to the power pins in the electronic equipment through the power supply pins in the power supply interface, and use the electrical signals to supply power to the electronic equipment, at least including power supply for driving the electronic equipment, and can also include power supply to the electronic equipment The battery in the battery is charged.

The power supply device described in the embodiment of the present invention may be a charging adapter or other electronic devices. However, it should be noted that when the electronic device is connected to the power supply device, the power supply device outputs an electrical signal to the charging interface of the electronic device, and the battery cell of the electronic device is charged with the electrical signal.

It should be noted that there may be one or more data pins; similarly, there may be one or more power pins. For example: the charging interface is a USB interface, including two data pins (data pin D+ and data pin D-) and a power pin.

Because the data is transmitted to other circuits or control modules in the electronic device through the data pin of the charging interface in the electronic device, usually, the electrical signal that the circuit or control module can receive to carry the data must be within the first voltage threshold , the electrical signal exceeding the first voltage threshold will burn out the circuit and/or electronic devices in the control module. In view of this, the embodiment of the present invention judges from the source (the data pin in the charging interface) whether the electrical signal carrying the data is within the first voltage threshold, and if not, disconnect the data pin from the circuit and the control module in time. electrical connection.

FIG. 1 shows the working process of the power supply method of the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.

In this embodiment, referring to the above, the electronic device includes a charging interface for connecting to a power supply device, the charging interface includes a power pin and a data pin, and the power pin is used to receive the The charging electrical signal, the data pin is used to receive the data signal sent by the power supply device. The electronic device charges the battery cell with the charging electrical signal received from the power supply pin. The control module of the electronic device analyzes the data for interacting with the power supply device from the data signal.

Referring to Fig. 1, the power supply method provided by the embodiment of the present invention includes A1 and A2.

A1, to determine the voltage of the data pin.

Specifically, the control module is electrically connected to the data pin of the charging interface; receiving the data-carrying electrical signal sent by the power supply device from the data pin, the control module can first detect the data-carrying electrical signal, that is, detect The voltage of the electrical signal is used to analyze the data. When the control module detects the voltage of the electrical signal, it first compares whether the voltage of the electrical signal exceeds the first voltage threshold, and only when the voltage of the electrical signal falls within the first voltage threshold, it can normally analyze the electrical signal If the voltage of the electrical signal does not belong to the first voltage threshold, not only give up analyzing the data from the electrical signal, but also execute A2.

As an optional implementation of A1, there is an analog-to-digital converter (Analog-to-Digital Converter, ADC) in the control module, and the electrical signal received from the data pin in the charging interface is sampled through the ADC; according to the sampling result Determine the voltage of the electrical signal, and compare the voltage of the electrical signal with the first voltage threshold. If the comparison result shows that the voltage of the electrical signal does not exceed the first voltage threshold, normally analyze the data from the sampling result. If the comparison result is that the voltage of the electrical signal exceeds the first voltage threshold, perform A2.

As another optional implementation of A1, since the switch module is connected between the data pin of the charging interface and the control module, the switch module detects the voltage of the electrical signal carrying the data, and compares the detected voltage with the first voltage Thresholds are traversed and compared; if the comparison result is that the voltage of the electrical signal does not exceed the first voltage threshold, an electrical signal carrying data is output to the control module; if the comparison result is that the voltage of the electrical signal exceeds the first voltage threshold, perform A2.

A2. When the voltage of the data pin is greater than or equal to a first voltage threshold, disconnect the electrical connection of the data transmission through the data pin.

Specifically, when executing A2, the electrical connection between the data pin in the charging interface and other circuits in the electronic device is directly disconnected, but the embodiment of the present invention does not provide any guidance on how to disconnect the electrical connection between the data pin in the charging interface and other circuits in the electronic device. The specific realization of the connection is not limited here; for example, the electrical connection between the data pin and the control module is disconnected.

As an optional implementation manner of the embodiment of the present invention, if the detected voltage is greater than or equal to the first voltage threshold, the step of disconnecting the electrical connection of the data transmission through the data pin specifically includes: When the control module compares that the detected voltage is greater than or equal to the first voltage threshold, the control switch module disconnects the electrical connection between the data pin of the charging interface and the control module.

Specifically corresponding to an implementation in A1, if the control module compares the voltage of the electrical signal beyond the first voltage threshold, the control module controls the switch module to disconnect the data pin in the charging interface from the control module. electrical connection.

Specifically corresponding to yet another implementation in A1, if the voltage of the electrical signal exceeds the first voltage threshold compared by the switch module, when the voltage of the electrical signal exceeds the first voltage threshold compared by the switch module, the switch The module immediately disconnects the electrical connection between the data pin in the charging interface and the control module.

FIG. 2 shows an optimized workflow of the power supply method according to the embodiment of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, referring to FIG. 2 , the determination of the voltage of the data pin includes: A11 and A12.

A11. Determine the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface changes from being disconnected to being connected.

Specifically, at the moment when the electrical connection between the power supply interface of the power supply device and the charging interface of the electronic equipment is established, an instantaneous surge voltage will be generated; the surge voltage may exceed the first voltage threshold. Therefore, this embodiment is to protect the circuit or control module of the subsequent stage of the charging interface in the electronic device, and detect the surge voltage; if the detected voltage is greater than or equal to the first voltage threshold, execute A2.

For example, if the electrical connection between the power supply interface of the power supply device and the charging interface of the electronic device is established by plugging, a surge voltage will be generated on the data pin of the charging interface at the moment of plugging.

A12. Determine the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface changes from being connected to being disconnected.

Specifically, at the moment when the electrical connection between the power supply interface of the power supply device and the charging interface of the electronic device is disconnected, an instantaneous surge voltage will be generated; the surge voltage may exceed the first voltage threshold. Therefore, this embodiment is to protect the circuit or control module of the subsequent stage of the charging interface in the electronic device, and detect the surge voltage; if the detected voltage is greater than or equal to the first voltage threshold, execute A2.

For example, if the electrical connection between the power supply interface of the power supply device and the charging interface of the electronic device is disconnected by plugging and unplugging, a surge voltage will be generated on the data pin of the charging interface at the moment of unplugging.

As an optional implementation manner of the embodiment of the present invention, the first voltage threshold is determined by an input voltage of the power supply pin.

In this embodiment, for the electrical signals connected from the power supply pins, the control module needs to be stepped down before being powered. If the power supply pins are directly connected to the data terminal of the control module, the control module will be burned directly. the internal circuit. For this reason, this embodiment determines a relatively small voltage as the first voltage threshold according to the input voltage from the power supply pin, or may use the input voltage of the power supply pin as the first voltage threshold .

As an implementation example of this embodiment, the step of detecting the voltage of the data pin in the charging interface specifically includes: detecting whether the data pin and the power pin in the charging interface are short-circuited.

Specifically, supplying power to the electronic device (including charging the batteries in the electronic device) at least at a voltage of 5 volts; especially, if the power supply device supports fast charging, the voltage of the electrical signal output by the power supply device to the electronic device is greater than 5 volts. Because the electrical signal output by the power supply device to the power pin of the charging interface in the electronic device has a voltage of at least 5 volts. If the data pin in the charging interface is short-circuited with the power pin, the voltage of the data pin will be pulled up to 5 volts or above, which will easily burn the subsequent circuit (including the control module) electrically connected to the data pin.

Therefore, this embodiment detects whether the data pin and the power pin in the charging interface are short-circuited in real time. Once the short-circuit connection between the data pin and the power pin in the charging interface is detected, A2 is immediately executed to disconnect the data The electrical connection between the pin and the subsequent circuit.

FIG. 3 shows a working flow of the power supply method according to the embodiment of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, referring to FIG. 3 , the method further includes A3, A4, and A5.

A3, sending a charging instruction specifying a charging voltage to the power supply device.

The power supply device described in this embodiment may be a charging adapter or other electronic devices. However, it should be noted that when the electronic device is connected to the power supply device, the power supply device outputs a charging electrical signal to the charging interface of the electronic device, and the battery cell of the electronic device is charged with the electrical signal.

In addition, the power supply device has a controller, and after the power supply device is connected to the electronic device, the controller can communicate with the control module of the electronic device. The control module of the electronic device can send a charging adjustment signal (such as the charging instruction) to the controller of the charging adapter, and the controller of the power supply device adjusts according to the received charging adjustment signal: the voltage and/or current and/or output of the power supply device power.

As an optional implementation, the control module of the electronic device sends the charging command to the controller of the charging adapter, and the charging adapter outputs an electrical signal having a voltage specified by the charging command to the electronic device; preferably, the charging command specified The voltage is greater than or equal to 5V, such as 5V, 9V, or 12V.

For example, when the charging adapter receives the charging instruction sent by the electronic device, if the charging instruction specifies 9V, then the controller of the charging adapter judges whether to support the voltage output of 9V, and if it is judged to be supported, the electronic device will be charged under the control of the controller. The charging interface outputs a 9V electrical signal. By default, or when the voltage specified by the charging instruction is not 5V, 9V or 12V, the charging adapter outputs a 5V electrical signal to the charging interface of the electronic device.

A4. Receive a charging response sent by the power supply device according to the charging instruction.

In this embodiment, when the power supply device receives the charging command and determines that fast charging is supported, it feeds back a charging response corresponding to the charging command to the control module of the electronic device. As an implementation example of this embodiment, when the power supply device receives the charging instruction and determines that fast charging is not supported, the person who does not give feedback to the control module of the electronic device feeds back the non-supporting instruction to the electronic device.

A5. According to the charging response, turn on the charging circuit for charging the battery cells by K charging circuits. Wherein, the K charging circuits belong to all or part of the charging circuits of the electronic device, that is, the K is less than or equal to the N.

Further, the control module receives a charging response corresponding to the charging instruction fed back by the power supply device, and generates a distributed charging instruction specifying K charging circuits. The control module selects K charging circuits according to the distributed charging command, turns on the charging circuit for charging the battery cells by the K charging circuits, and charges the battery cells through the K charging circuits connected in parallel.

As an optional implementation mode of the embodiment of the present invention, a specific optimization is performed on A5. Before the charging circuit for charging the battery cells by turning on the K charging circuits, the method further includes:

determining the current charging phase of the electronic device;

According to the current charging stage, the number K of charging circuits for charging the battery cells is determined.

As mentioned above, the charging phase includes a pre-charging phase, a constant current charging phase and a constant voltage charging phase. Due to different charging stages, the charging current that the battery cell can withstand is different, and in this embodiment, the data K of the charging circuit is adjusted at different charging stages.

For example, in the pre-charging stage, one charging circuit is sufficient to provide the charging current required by the battery cell in the pre-charging stage, and the control module determines that M is a value of "1"; the control module only conducts one charging circuit, and through this charging The circuit forms a charging circuit for charging the battery cell;

In the constant current charging stage, the two charging circuits are sufficient to provide the charging current required by the battery cell in the constant current charging stage, and the control module determines that M is a value of "2", that is, the control module turns on the two charging circuits, and through the two Two charging circuits respectively form a charging circuit for charging the battery core, and the two charging circuits charge the battery core simultaneously in parallel;

In the constant voltage charging stage, one charging circuit is enough to provide the charging current required by the battery cell in the constant voltage charging stage, and the control module determines that M is a value of "1", that is, the control module only conducts one charging circuit, through which the charging The circuit forms a charging loop for charging the battery cells.

As a specific implementation of the method described in Figure 3, the method also includes:

determining the number M of charging circuits for charging the batteries;

Turning on the charging circuit for charging the battery cells with M charging circuits, wherein the M charging circuits belong to all or part of the charging circuits of the electronic device, and wherein the K is different from the M.

Specifically, after A3 sends a charging command specifying a charging voltage to the power supply device, if the power supply device does not support outputting the charging voltage specified by the charging command, the power supply device will not feed back a charging response to the electronic device; correspondingly, the electronic The control module in the device does not receive the charging response within a preset time period, and determines the data M. Then, the control module selects M charging circuits from the N charging circuits, and turns on the selected M charging circuits to charge the cell at the same time.

As a specific example of this embodiment, the M is different from the K; in this way, when the control module does not receive a charging response corresponding to the charging command, it does not support charging the battery cell at the same time with K charging circuits.

For example, the charging voltage specified by the charging instruction is a high voltage, and if the power supply device supports outputting the high voltage, the number of charging circuits that need to be connected in parallel to the electronic device is at least K, and the K is greater than the M. That is, K charging circuits that need to be connected in parallel charge the battery cells at the same time, and the charging current is shared by K charging circuits; if the number of charging circuits is less than K, it will not be able to bear the charging current, and the charging circuit will be easily damaged.

For another example, the charging voltage specified by the charging command is a low voltage. If the power supply device supports outputting the low voltage, the number of charging circuits that need to be connected in parallel to the electronic device is at most K, and the K is less than or equal to the M. That is, K charging circuits that need to be connected in parallel charge the battery cells at the same time, and the charging current is shared by K charging circuits; the number of charging circuits reaches K and can bear the charging current, so more charging circuits are needed, and more charging circuits work will cause power loss.

As a specific example of this embodiment, the M is equal to the K; that is, regardless of whether the power supply device supports the output of the charging voltage specified by the charging command, the control module controls the K charging circuits to be turned on, and at the same time, the parallel connection K charging circuits charge the batteries.

As an optional implementation manner of the embodiment of the present invention, the determination of the number M of charging circuits for charging the battery cells includes:

Determine the number M of charging circuits for charging the batteries according to at least one of the following parameters:

Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state.

Specifically, in the process of charging the batteries with less than M charging circuits, if the control module receives a distributed charging instruction, turn on the charging circuit for charging the batteries with M charging circuits; wherein, The M is specified by the distributed charging instruction, the M is a positive integer, and the M is greater than the M.

Wherein, the distributed charging instruction is triggered by a parameter, and the parameter includes: a charging instruction input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an operating state of an application program.

As an implementation manner of triggering the distributed charging instruction by the parameter, specifically, the distributed charging instruction is triggered by manipulating the electronic device. The specific implementation of how to trigger the distributed charging command is not limited here. For example, the electronic device provides a button or a menu. When the user touches the button, the distributed charging instruction is triggered, and the user selectively triggers the distributed charging instruction through the menu.

It is worth noting that the parameters also include: the ambient temperature of the environment where one or more electronic devices in the electronic equipment is located is higher than the temperature threshold; wherein, for different operating temperature ranges of different electronic devices, the operating temperature range The highest temperature is determined as the temperature threshold.

For example, one or more electronic devices that need to work in a lower temperature working environment are screened out in electronic equipment; a temperature detection module is added near the screened electronic devices, and the screened out electronic devices are detected in real time by the temperature detection module. The temperature of the environment in which the electronic device is located (i.e. ambient temperature). This embodiment does not limit the specific implementation of the temperature detection module, for example, it does not limit the specific circuit included in the temperature detection module; for example, the temperature detection module can be realized by using a temperature sensor; Thermistor implementation. For a selected electronic device, if it is detected that the ambient temperature of the electronic device is higher than the temperature threshold corresponding to the electronic device (that is, the parameter occurs), the distributed charging instruction is triggered.

Preferably, the parameters include: the ambient temperature of the environment where one or more electronic devices in the charging circuit is located is higher than the temperature threshold; wherein, for different operating temperature ranges of different electronic devices, the highest temperature in the operating temperature range is determined is the temperature threshold.

For example, the temperature detection module detects the ambient temperature of each charging circuit in real time, and outputs the detected temperature to the control module. For a certain charging circuit, if the control module determines that the ambient temperature detected by the temperature detection module and the environment where the charging circuit is located is greater than the corresponding temperature threshold, the distributed charging instruction is triggered, and the distributed charging instruction is used; The charging command specifies charging circuits, and the number of charging circuits specified by the distributed charging command is M. Wherein, the charging circuit specified by the distributed charging instruction does not include: the charging circuit whose ambient temperature is higher than the temperature threshold.

The parameters also include: an ad hoc event that causes the electronic device to run faster and cause the electronic device to emit a large amount of heat, such as the running status of the application program; the ad hoc event includes at least: 1. Manipulating the electronic device to execute the application program at a high speed causes the electronic The event that the device emits a large amount of heat and executes the application program is the ad hoc event; for example, the event of manipulating the electronic device to play games and executing the game program; The event that causes the electronic equipment to emit a large amount of heat and controls the circuit in the electronic equipment to continue to work is the ad hoc event.

In the process of charging the battery cells with less than M charging circuits, after receiving the distributed charging instruction triggered by the parameters, the battery cells are charged with M charging circuits connected in parallel. Compared with charging the battery core with less than M charging circuits, charging the battery core with M charging circuits has the following advantages: because the M charging circuits input current to the battery core in parallel, it is apportioned to each The current of each charging circuit is relatively reduced, so that the heat dissipated by each charging circuit due to power loss during charging is also relatively reduced, thereby relatively reducing the ambient temperature of the environment where the resistor is located.

As an optional implementation manner of the embodiment of the present invention, the method further includes:

When at least one of the following conditions is met, all charging circuits for charging the batteries are disconnected:

Wherein, the conditions include: a disconnection command input by the user is received, the temperature of the battery core of the electronic device is greater than or equal to the temperature threshold, the positive input voltage of the battery core is greater than or equal to the second voltage threshold and the battery capacity greater than or equal to the power threshold.

In this embodiment, when the control module detects the condition, it triggers the disconnection instruction. When the control module receives the disconnection instruction, it controls the switch module to disconnect the electrical connection between the power supply pin of the charging interface and all the charging circuits, so as to disconnect the charging circuit for charging the batteries by all the charging circuits .

It is worth noting that the conditions include at least the following three:

The first method is to artificially trigger the electronic device to generate the disconnection instruction. However, there is no limitation on how to artificially trigger the electronic device to generate the disconnection instruction, for example: triggering the disconnection instruction through a preset button on the electronic device.

The second type is that the control module generates the disconnection command when it detects an abnormal charging situation, wherein the abnormal charging situation that triggers the control module to generate the disconnection command needs to be set in advance; the abnormal charging situation that can be set includes but is not limited to:

1. During the process of charging the battery, the temperature of the battery is detected, and the detected temperature has reached or exceeded the temperature threshold (that is, the temperature required for normal charging);

2. In the process of charging the battery cell, it is detected that the voltage input to the positive electrode of the battery cell has exceeded the voltage that can be tolerated by normal charging (ie, the second voltage threshold).

In the third type, the control module generates the disconnection command when it detects that the battery is fully charged. Among them, during the charging process, the voltage of the battery cell will be detected in real time, and the control module will judge whether it is fully charged according to the detected voltage (that is, judge whether the power of the battery cell is greater than or equal to the power threshold), and if it is determined that the battery cell is fully charged , to generate the disconnect command.

In this embodiment, once the control module receives the disconnection command, the control switch module disconnects the electrical connection between the power supply pin of the charging interface and all the charging circuits, disconnects all the charging circuits that charge the battery cells, and stops Charge the battery.

It should be understood that in the embodiment of the present invention, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than the implementation process of the embodiment of the present invention. constitute any limitation.

It should be noted that the power supply method provided in the embodiment of the present invention is applicable to the electronic device provided in the embodiment of the present invention.

FIG. 4 shows the composition structure of the electronic device provided by the embodiment of the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown.

The electronic equipment provided in this embodiment, as shown in FIG. The interface 2 includes a power pin 22 and a data pin 21, the power pin 22 is used to receive the charging electrical signal sent by the power supply device, and the data pin 21 is used to receive the data signal sent by the power supply device;

The control module 1 is configured to: determine the voltage of the data pin 21, and when the voltage of the data pin 21 is greater than or equal to a first voltage threshold, disconnect the power supply for data transmission through the data pin 21. connect.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is specifically configured to: determine the data voltage at pin 21;

The control module 1 is specifically configured to: determine the voltage of the data pin 21 when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface 2 changes from being connected to being disconnected.

As an optional implementation manner of the embodiment of the present invention, the first voltage threshold is determined by the input voltage of the power supply pin 22 .

FIG. 5 shows an optimized composition structure of an electronic device provided by an embodiment of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown.

As an optional implementation of the embodiment of the present invention, as shown in FIG. 5 , the electronic device further includes N charging circuits 3 and batteries connected in parallel, and the control module 1 is electrically connected to the N charging circuits 3 respectively. ;

The control module 1 is further configured to: send a charging command specifying a charging voltage to the power supply device, receive a charging response sent by the power supply device according to the charging command, and conduct K 3 pairs of charging circuits according to the charging response. A charging circuit for battery charging, wherein the K is less than or equal to the N.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to: determine the current charging stage of the electronic device, and determine the charging method for charging the battery cell according to the current charging stage. The number K of circuits 3 .

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to: determine the number M of charging circuits 3 for charging the battery cells;

Turn on the charging circuit for charging the battery cells with M charging circuits 3, wherein the M charging circuits 3 belong to all or part of the charging circuits 3 of the electronic device, wherein the K is different from the M, and the K is less than or equal to said N.

As an optional implementation of the embodiment of the present invention, the control module 1 is further configured to: determine the number M of charging circuits 3 for charging the battery cells according to at least one of the following parameters:

Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state.

FIG. 6 shows another optimized composition structure of the electronic device provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, as shown in FIG. 6 , the electronic device further includes a switch module 4, and the switch module 4 is connected between the charging interface 2 and the charging circuit 3;

The control module 1 is electrically connected to the switch module 4, and the control module 1 is also used for: charging the battery cell through the charging interface 2, the switch module 4 and the charging circuit 3 in sequence Among them, when at least one of the following conditions is met, the switch module 4 is controlled to disconnect all charging circuits 3 charging the battery cells:

Wherein, the conditions include: a disconnection command input by the user is received, the temperature of the battery core of the electronic device is greater than or equal to the temperature threshold, the positive input voltage of the battery core is greater than or equal to the second voltage threshold and the battery capacity greater than or equal to the power threshold.

It should be understood that the electronic devices in FIGS. 4 to 6 may correspond to the electronic devices in the method for charging an electronic device shown in FIGS. 1 to 3 , and may implement corresponding functions of the electronic devices in the method. For brevity, I won't repeat them here.

Those skilled in the art can appreciate that the modules and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the electronic device and each module described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed electronic device and method can be implemented in other ways. For example, the embodiments of the electronic equipment described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or may be distributed to multiple network modules. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, each module may exist separately physically, or two or more modules may be integrated into one module.

If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several equivalent substitutions or obvious modifications are made without departing from the concept of the present invention, and the performance or use is the same, all should be regarded as belonging to the present invention by the submitted claims The scope of patent protection determined by the book.

Claims (20)

1. A method for supplying power to an electronic device, the electronic device comprising a charging interface for connecting to a power supply device, the charging interface comprising a power pin and a data pin, the power pin being used to receive the The charging electrical signal sent by the power supply device, the data pin is used to receive the data signal sent by the power supply device, wherein the power supply method includes: determining the voltage of the data pin; When the voltage of the data pin is greater than or equal to the first voltage threshold, the electrical connection of the data transmission through the data pin is disconnected, wherein the electrical connection of the data transmission through the data pin is disconnected. Open the electrical connection between the data pin in the charging interface and other circuits in the electronic device. 2. The method according to claim 1, wherein said determining the voltage of said data pin comprises: determining the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface is switched from disconnection to connection; The voltage of the data pin is determined when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface is switched from being connected to being disconnected. 3. The power supply method according to claim 1, wherein the first voltage threshold is determined by the input voltage of the power supply pin. 4. The method according to any one of claims 1 to 3, further comprising: sending a charging instruction specifying a charging voltage to the power supply device; receiving a charging response sent by the power supply device according to the charging instruction; According to the charging response, turn on the charging circuit for charging the battery cells by K charging circuits, wherein the K charging circuits belong to all or part of the charging circuits of the electronic device. 5. The method according to claim 4, characterized in that, before the charging circuit for charging the battery cells by turning on the K charging circuits, the method further comprises: determining the current charging phase of the electronic device; According to the current charging stage, the number K of charging circuits for charging the battery cells is determined. 6. The method of claim 4, further comprising: When the charging response is not received, determine the number M of charging circuits that charge the batteries; Turning on the charging circuit for charging the battery cells with M charging circuits, wherein the M charging circuits belong to all or part of the charging circuits of the electronic device, and wherein the K is different from the M. 7. The method according to claim 6, wherein the determining the number M of charging circuits for charging the batteries comprises: Determine the number M of charging circuits for charging the batteries according to at least one of the following parameters: Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state. 8. The method of claim 5, further comprising: When the charging response is not received, determine the number M of charging circuits that charge the batteries; Turning on the charging circuit for charging the battery cells with M charging circuits, wherein the M charging circuits belong to all or part of the charging circuits of the electronic device, and wherein the K is different from the M. 9. The method according to claim 8, wherein the determining the number M of charging circuits for charging the batteries comprises: Determine the number M of charging circuits for charging the batteries according to at least one of the following parameters: Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state. 10. The method of claim 4, further comprising: When at least one of the following conditions is met, all charging circuits for charging the batteries are disconnected: Wherein, the conditions include: a disconnection command input by the user is received, the temperature of the battery core of the electronic device is greater than or equal to the temperature threshold, the positive input voltage of the battery core is greater than or equal to the second voltage threshold and the battery capacity greater than or equal to the power threshold. 11. An electronic device, the electronic device comprising a control module and a charging interface for connecting to a power supply device, the control module is electrically connected to the charging interface, the charging interface includes a power pin and a data pin, the The power supply pin is used to receive the charging electrical signal sent by the power supply equipment, and the data pin is used to receive the data signal sent by the power supply equipment; It is characterized in that the control module is used to: determine the voltage of the data pin, and disconnect the power supply for data transmission through the data pin when the voltage of the data pin is greater than or equal to a first voltage threshold. Connecting, wherein disconnecting the electrical connection of the data transmission via the data pin is disconnecting the electrical connection between the data pin in the charging interface and other circuits in the electronic device. 12. The electronic device of claim 11, wherein The control module is specifically configured to: determine the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface changes from disconnection to connection; The control module is specifically configured to: determine the voltage of the data pin when it is determined that the electrical connection between the power supply interface of the power supply device and the charging interface is switched from being connected to being disconnected. 13. The electronic device according to claim 11, wherein the first voltage threshold is determined by an input voltage of the power supply pin. 14. The electronic device according to any one of claims 11 to 13, characterized in that, the electronic device further comprises N charging circuits and batteries connected in parallel, and the control module is connected to the N charging circuits respectively. connect; The control module is further configured to: send a charging command specifying a charging voltage to the power supply device, receive a charging response sent by the power supply device according to the charging command, and conduct K charging circuits to charge the battery cells according to the charging response. A charging circuit for charging, wherein the K is less than or equal to the N. 15. The electronic device of claim 14, wherein The control module is further configured to: determine the current charging stage of the electronic device, and determine the number K of charging circuits for charging the battery cells according to the current charging stage. 16. The electronic device of claim 14, wherein The control module is also used for: when the charging response is not received, determine the number M of charging circuits for charging the battery cells, and turn on the charging circuit for charging the battery cells by M charging circuits; Wherein, the M charging circuits belong to all or part of the charging circuits of the electronic device, wherein the K is different from the M, and the K is less than or equal to the N. 17. The electronic device of claim 16, wherein The control module is further configured to: determine the number M of charging circuits for charging the battery cells according to at least one of the following parameters: Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state. 18. The electronic device of claim 15, wherein The control module is also used for: when the charging response is not received, determine the number M of charging circuits for charging the battery cells, and turn on the charging circuit for charging the battery cells by M charging circuits; Wherein, the M charging circuits belong to all or part of the charging circuits of the electronic device, wherein the K is different from the M, and the K is less than or equal to the N. 19. The electronic device of claim 18, wherein The control module is further configured to: determine the number M of charging circuits for charging the battery cells according to at least one of the following parameters: Wherein, the parameters include: a decentralized charging command input by a user, an ambient temperature of an environment where one or more electronic devices in the electronic device are located, and an application program running state. 20. The electronic device according to claim 14, further comprising a switch module, the switch module being connected between the charging interface and the charging circuit; The control module is electrically connected to the switch module, and the control module is also used to: during the process of charging the battery cell through the charging interface, the switch module and the charging circuit in sequence, when the following conditions are met When at least one of the above is used, the switch module is controlled to disconnect all charging circuits for charging the batteries: Wherein, the conditions include: a disconnection command input by the user is received, the temperature of the battery core of the electronic device is greater than or equal to the temperature threshold, the positive input voltage of the battery core is greater than or equal to the second voltage threshold and the battery capacity greater than or equal to the power threshold.