Charging method, device, terminal and storage medium

Abstract

The present disclosure relates to a charging device, applied to a first terminal, comprising: a transceiver, a voltage conversion module, and a power module; the voltage conversion module includes at least two voltage conversion modules with different step-up ratios, connected between the transceiver and the power module, and configured to boost the output voltage of the power module and provide it to the transceiver when the first terminal is reversely powered, and to step down the input voltage provided by the transceiver and provide it to the power module when the first terminal is forwardly charged; the transceiver is configured to radiate a wireless charging signal based on the boosted voltage of the voltage conversion module when the charging device is powered, and to receive a wireless charging signal and convert the received wireless charging signal into an input voltage for transmission to the voltage conversion module when the charging device is charging. Embodiments of the present disclosure also provide a charging method, terminal, and storage medium.

Description

Technical Field

[0001] The present disclosure relates to the field of charging technology, and in particular to a charging method, device, terminal, and storage medium. Background Art

[0002] With the development of wireless charging technology, more and more devices, including many wearable devices and smart terminals, are beginning to use wireless charging technology for charging. Wireless charging technologies mainly include magnetic induction wireless charging technology based on the WPC standard and magnetic resonance technology based on the A4WP standard. Currently, wireless charging is being adopted in more and more mobile terminals, and many mobile phones, such as those from mainstream manufacturers such as Samsung, Xiaomi, Huawei, and Apple, support wireless reverse charging technology. However, the reverse charging power supported by existing mobile phones is generally relatively low. Summary of the Invention

[0003] The present disclosure provides a charging method, device, terminal and storage medium.

[0004] According to a first aspect of an embodiment of the present disclosure, a charging device is provided, which is applied to a first terminal. The charging device includes: a transceiver, a voltage conversion module, and a power supply module; wherein the voltage conversion module includes at least two boost ratios; wherein,

[0005] The voltage conversion module is connected between the transceiver and the power module, and is used to boost the output voltage of the power module and provide it to the transceiver when the first terminal is reversely powered, and to step down the input voltage provided by the transceiver and provide it to the power module when the first terminal is forwardly charged;

[0006] The transceiver is used to radiate a wireless charging signal based on the voltage boosted by the voltage conversion module when the first terminal is powered, and to receive a wireless charging signal and convert the received wireless charging signal into an input voltage for transmission to the voltage conversion module when the first terminal is charged.

[0007] In the above solution, the charging device further includes:

[0008] A control module connected to the voltage conversion module;

[0009] The control module is used to control the boost ratio used by the voltage conversion module for boosting.

[0010] In the above solution, the device further comprises: a switch module connected between the voltage conversion module and the power supply module; the switch module comprises: a first switch device and a second switch device;

[0011] The switch module is also connected to the control module and is used to switch the switch state based on the control signal sent by the control module to achieve isolation between the power supply circuit and the charging circuit of the charging device; wherein the power supply circuit is a circuit formed by the power supply module, the first switch device, the voltage conversion module and the transceiver; the charging circuit is a circuit formed by the transceiver, the voltage conversion module, the second switch device and the power supply module.

[0012] In the above solution, the power module includes: a battery and a first charging management chip;

[0013] The first switching device is connected between the voltage conversion module and the battery;

[0014] The second switching device is connected between the voltage conversion module and the first charging management chip, and the first charging management chip is connected to the battery; when the first terminal is charging, the first charging management chip adjusts the voltage after being boosted by the voltage conversion module within a set threshold range.

[0015] In the above solution, the charging device further includes: a third switching device; the power supply module further includes: a second charging management chip;

[0016] The third switch device is connected to the USB interface of the first terminal, and the second charging management chip is connected between the third switch device and the battery;

[0017] The second charging management chip is used to send a control signal to the third switching device to control whether the third switching device is turned on based on the wired charging signal received by the USB interface; wherein, when the third switching device is turned on, the wired charging signal received by the USB interface is transmitted to the power supply module.

[0018] According to a second aspect of an embodiment of the present disclosure, a wireless charging method is provided, applied to a first terminal, the method comprising:

[0019] Obtaining charge and discharge control signals;

[0020] Determining whether the charge and discharge control signal is a reverse power supply control signal;

[0021] If the charge and discharge signal is a reverse power supply control signal, selecting a target reverse power supply boost mode from at least two alternative boost modes to boost the battery voltage of the first terminal;

[0022] Based on the boosted reverse power supply signal, a wireless charging signal is sent to the outside world.

[0023] In the above solution, the method includes:

[0024] Based on the charge and discharge control signal, a boost ratio used in the target reverse power supply boost mode is determined, wherein the boost ratio includes at least two boost ratios.

[0025] In the above solution, the method includes:

[0026] If the charging and discharging is a forward charging control signal, the corresponding forward charging voltage reduction mode is called to reduce the voltage of the received wireless charging signal, and the first terminal is charged based on the reduced voltage.

[0027] In the above solution, the method further includes:

[0028] Send detection signal;

[0029] receiving a feedback signal returned based on the detection signal;

[0030] Based on the feedback signal, it is determined that a second terminal exists within a predetermined range of the first terminal.

[0031] In the above solution, the method further includes:

[0032] determining, based on a boosted voltage when the first terminal is powered, a target frequency corresponding to sending the detection signal;

[0033] The sending of the detection signal comprises:

[0034] The detection signal is transmitted based on the target frequency.

[0035] In the above solution, the method further includes:

[0036] Obtaining authentication information of the second terminal;

[0037] Based on the authentication information, when the second terminal authentication succeeds, the boost ratio is controlled to operate at a first boost ratio; when the second terminal authentication fails, the boost ratio is controlled to operate at a second boost ratio; wherein the first boost ratio is greater than the second boost ratio.

[0038] In the above solution, obtaining the authentication information of the second terminal includes:

[0039] receiving the authentication information provided by the second terminal;

[0040] or,

[0041] The authentication information is obtained based on the demodulated received wireless charging signal.

[0042] In the above solution, before receiving the authentication information provided by the second terminal, the method further includes:

[0043] Sending an authentication request to the second terminal; wherein the authentication information is returned based on the authentication request, or the authentication information is pushed by the second terminal.

[0044] In the above solution, the method further includes:

[0045] Obtaining charging capability information of the second terminal;

[0046] A charge and discharge control signal for controlling the voltage boost ratio is determined based on the authentication information and the charging capability information.

[0047] In the above solution, the method further includes:

[0048] If it is determined that the first terminal is charged, the battery module may also be charged using a wired charging signal received by a USB interface of the first terminal.

[0049] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0050] processor;

[0051] a memory for storing processor-executable instructions;

[0052] The processor is configured to: implement the charging method described in any embodiment of the present disclosure when executing the executable instructions.

[0053] According to a fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores an executable program, wherein when the executable program is executed by a processor, the charging method described in any embodiment of the present disclosure is implemented.

[0054] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0055] In an embodiment of the present disclosure, the charging device includes a transceiver, a voltage conversion module, and a power supply module. The transceiver can receive wireless charging signals and convert the received wireless charging signals into input voltages, which are then transmitted to the voltage conversion module. The voltage conversion module can step down the input voltage provided by the transceiver and provide it to the voltage module, thereby achieving forward charging of the first terminal. Furthermore, the voltage conversion module can boost the output voltage of the voltage module and provide it to the transceiver. The transceiver radiates the boosted voltage from the voltage conversion module as a wireless charging signal, thereby achieving reverse power supply of the first terminal. In this way, the charging device can not only charge the first terminal, but also use the first terminal as a wireless charging transmitter to charge other receiving devices, thereby improving the intelligence of electronic devices and further meeting users' wireless charging needs.

[0056] Furthermore, because the voltage conversion module includes at least two boost ratios, the first terminal can use the appropriate boost ratio to charge other receiving devices when used for reverse power supply, thereby meeting the charging needs of other receiving devices. Furthermore, if the voltage conversion module uses a relatively high boost ratio, it can significantly increase the reverse power supply power of the first terminal, which helps to accelerate the charging speed of other receiving devices and improve power supply efficiency.

[0057] Furthermore, since the present disclosure increases the power supplied to the first terminal by increasing the voltage, this ensures that the current in the coil in the transceiver is within a controllable range, reduces coil heating, and thus reduces coil loss.

[0058] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0060] Figure 1 is a block diagram of a charging device according to an exemplary embodiment.

[0061] Figure 2 is a block diagram of a charging device according to an exemplary embodiment.

[0062] Figure 3 is a block diagram of a charging device according to an exemplary embodiment.

[0063] Figure 4 is a block diagram of a charging device according to an exemplary embodiment.

[0064] Figure 5 The figure is a flow chart showing a charging method according to an exemplary embodiment.

[0065] Figure 6 The figure is a flow chart showing a charging method according to an exemplary embodiment.

[0066] Figure 7 The figure is a flow chart showing a charging method according to an exemplary embodiment.

[0067] Figure 8 is a block diagram of a charging device according to an exemplary embodiment. DETAILED DESCRIPTION

[0068] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0069] Figure 1 is a block diagram of a charging device according to an exemplary embodiment. Figure 1 As shown, the charging device includes: a transceiver 11, a voltage conversion module 12, and a power supply module 13; wherein the voltage conversion module 12 includes at least two boost ratios; wherein,

[0070] The voltage conversion module 12 is connected between the transceiver 11 and the power module 13, and is used to boost the output voltage of the power module 13 and provide it to the transceiver 11 when the first terminal is reversely powered, and to step down the input voltage provided by the transceiver 11 and provide it to the power module 13 when the first terminal is forwardly charged;

[0071] The transceiver 11 is used to radiate a wireless charging signal based on the voltage boosted by the voltage conversion module 12 when the first terminal is powered, and to receive a wireless charging signal and convert the received wireless charging signal into an input voltage for transmission to the voltage conversion module when the first terminal is charging.

[0072] The charging device disclosed in the embodiments of the present disclosure is applied to a first terminal. Here, the first terminal can be any electronic device capable of receiving radio frequency signals. For example, the first terminal can be a mobile communication device or a laptop computer, etc.

[0073] In an embodiment of the present disclosure, the first terminal is used for reverse power supply or forward charging. When the first terminal is used for reverse power supply, the transceiver radiates radio signals; when the first terminal is used for forward charging, the receiver receives radio signals.

[0074] In one embodiment, the transceiver includes a coil; the coil is used to generate electromagnetic induction to send or receive radio signals.

[0075] In the disclosed embodiment, the voltage conversion module 12 is an N:1 module or a 1:N module, where N is a positive integer greater than 1. For example, N is 2, 3, or 4. The voltage conversion module includes at least two boost ratios; for example, the boost ratios can be 2:1, 3:1, or 4:1.

[0076] In one embodiment, the voltage conversion module 12 is an N:1 module, where N is a positive integer greater than or equal to 1.

[0077] In the embodiment of the present disclosure, when the first terminal is used for reverse power supply, the voltage conversion module is 1:N, which is used to indicate that the output voltage is N times the input voltage; when the first terminal is used for forward charging, the voltage conversion module is N:1, which is used to indicate that the output voltage is N times the input voltage.

[0078] For example, the 1:1 ratio indicates that the output voltage is 1 times the input voltage; the 1:2 ratio indicates that the output voltage is 2 times the input voltage; the 1:3 ratio indicates that the output voltage is 3 times the input voltage; the 1:4 ratio indicates that the output voltage is 4 times the input voltage; the 4:1 ratio indicates that the output voltage is 1 / 4 of the input voltage. times; the 3:1 is used to indicate that the output voltage is the input voltage times; the 2:1 is used to indicate that the output voltage is the input voltage times.

[0079] If the first terminal is used for reverse power supply, the voltage conversion module operates in a boost mode.

[0080] For example, when the voltage conversion module is a 1:4 module and the first terminal is used for reverse power supply, the ratio of the input voltage to the output voltage of the voltage conversion module can be switched among 1:4, 1:3, 1:2 and 1:1.

[0081] For another example, when the voltage conversion module is a 1:3 ratio module and the first terminal is used for reverse power supply, the ratio of the input voltage to the output voltage of the voltage conversion module can be switched among 1:3, 1:2, and 1:1.

[0082] If the first terminal is used for forward charging, the voltage conversion module operates in a step-down mode.

[0083] For example, when the voltage conversion module is a 4:1 module and the first terminal is used for forward charging, the ratio of the input voltage to the output voltage of the voltage conversion module can be switched among 4:1, 3:1, 2:1 and 1:1.

[0084] For another example, when the voltage conversion module is a 3:1 module and the first terminal is used for forward charging, the ratio of the input voltage to the output voltage of the voltage conversion module can be switched among 3:1, 2:1 and 1:1.

[0085] It can be understood that when the ratio of the input voltage to the output voltage of the voltage conversion module is 1:1, the voltage conversion module can be considered as a through switch.

[0086] It is understandable that the voltage conversion module can also be considered as a current regulating module. For example, when the voltage conversion module is a 1:4 module, if the first terminal adopts a step-up ratio of 1:4, the output voltage of the voltage conversion module is 4 times the input voltage, and the output current of the voltage conversion module is 1 / 4 of the input current. times; if the first terminal adopts a step-up ratio of 1:3, the output voltage of the voltage conversion module is 3 times the input voltage, and the output current of the voltage conversion module is times. .

[0087] Here, the voltage or current conversion function implemented by the voltage conversion module can be achieved using charge pump technology, etc.

[0088] In some embodiments, the voltage conversion module can also be used to convert DC to AC, or AC to DC. If the first terminal is used for reverse power supply, the voltage conversion module converts the boosted DC voltage into AC voltage. If the first terminal is used for forward charging, the voltage conversion module converts the AC voltage into DC voltage and then steps it down.

[0089] In other embodiments, the charging device further includes an inverter rectifier module, which is located between the transceiver and the voltage conversion module and is configured to convert the DC voltage output by the voltage conversion module into an AC voltage when the first terminal is reversely powered, and to convert the AC voltage output by the transceiver into a DC voltage when the first terminal is forwardly charged.

[0090] In the embodiment of the present disclosure, the power module 13 may include a power management chip, or may include a power management chip and a peripheral circuit, which is not limited here.

[0091] In an embodiment of the present disclosure, the charging device includes a transceiver, a voltage conversion module, and a power supply module. The transceiver can receive wireless charging signals and convert the received wireless charging signals into input voltages, which are then transmitted to the voltage conversion module. The voltage conversion module can step down the input voltage provided by the transceiver and provide it to the voltage module, thereby achieving forward charging of the first terminal. Furthermore, the voltage conversion module can boost the output voltage of the voltage module and provide it to the transceiver. The transceiver radiates the boosted voltage from the voltage conversion module as a wireless charging signal, thereby achieving reverse power supply of the first terminal. In this way, the charging device can not only charge the first terminal, but also use the first terminal as a wireless charging transmitter to charge other receiving devices, thereby improving the intelligence of electronic devices and further meeting users' wireless charging needs.

[0092] Furthermore, because the voltage conversion module includes at least two boost ratios, the first terminal can use the appropriate boost ratio to charge other receiving devices when used for reverse power supply, thereby meeting the charging needs of other receiving devices. Furthermore, if the voltage conversion module uses a relatively high boost ratio, it can significantly increase the reverse power supply power of the first terminal, which helps to accelerate the charging speed of other receiving devices and improve power supply efficiency.

[0093] Furthermore, since the present disclosure increases the power supplied to the first terminal by increasing the voltage, this ensures that the current in the coil in the transceiver is within a controllable range, reduces coil heating, and thus reduces coil loss.

[0094] like Figure 2 As shown, in some embodiments, the charging device further includes:

[0095] A control module 14 connected to the voltage conversion module 12;

[0096] The control module 14 is used to control the boost ratio used by the voltage conversion module 12 for boosting the voltage.

[0097] Here, the control module 14 generally controls the overall operation of the charging device, such as controlling the boost ratio used by the voltage conversion module, controlling the on and off of switches in the charging device, etc. The control module may include one or more processors to execute instructions to complete corresponding operations.

[0098] In the disclosed embodiment, the control module can control a signal, etc., to control the boost ratio used by the voltage conversion module. For example, if the voltage conversion module is a 1:4 module, the control module can control the boost ratio of the voltage conversion module to 1:4, 1:3, 1:2, or 1:1.

[0099] In an embodiment of the present disclosure, the boost ratio used by the voltage module for boosting can be controlled based on the control module, so that the first terminal adopts different boost ratios when reverse power is supplied to adapt to the charging requirements of different receiving devices, etc.

[0100] Please see again Figure 2 In some embodiments, the device further includes: a switch module 15 connected between the voltage conversion module 12 and the power supply module 13; the switch module 15 includes: a first switch device 151 and a second switch device 152;

[0101] The switch module 15 is also connected to the control module 14 and is used to switch the switch state based on the control signal sent by the control module 14 to achieve isolation between the power supply circuit and the charging circuit of the charging device; wherein the power supply circuit is a circuit formed by the power supply module 13, the first switch device 151, the voltage conversion module 12 and the transceiver 11; the charging circuit is a circuit formed by the transceiver 11, the voltage conversion module 12, the second switch device 152 and the power supply module 13.

[0102] exist Figure 2 In the figure, the symbol ① is used to represent the power supply circuit, and the symbol ② is used to represent the charging circuit.

[0103] Here, the first switching device and the second switching device can be various switching devices. For example, the first switching device and the second switching device can be single-pole single-throw switches, relays, or metal oxide semiconductor field effect transistors, etc., which are not limited here.

[0104] In the embodiment of the present disclosure, when the first switching device is on and the second switching device is off, the first terminal is used for reverse power supply; when the first switching device is off and the second switching device is on, the first terminal is used for forward charging. In this way, the embodiment of the present disclosure can achieve isolation between the power supply circuit and the charging circuit by switching the first and second switching devices on and off.

[0105] In the prior art, the isolation between the power supply circuit and the charging circuit is not achieved. Figure 3The charging device shown connects a voltage conversion module and a first charging management chip via a first switching device. This is typically controlled by: when the first switching device is on and the first charging chip is off, the charging device is controlled for reverse power supply; when the first switching device is on and the first charging management chip is on, the charging device is controlled for forward charging. This fails to isolate the power supply circuit for reverse power supply from the charging circuit for forward charging. Furthermore, in the prior art, the voltage conversion module is not based on a 1:N step-up ratio converter, as the charging power and efficiency of the charging device are not high.

[0106] In some embodiments, the power module 13 includes: a battery 131 and a first charging management chip 132;

[0107] The first switch device 151 is connected between the voltage conversion module 12 and the battery 131;

[0108] The second switching device 152 is connected between the voltage conversion module 12 and the first charging management chip 132, and the first charging management chip 132 is connected to the battery 131; when the first terminal is charging, the first charging management chip 132 adjusts the voltage after being boosted by the voltage conversion module 12 within a set threshold range.

[0109] Here, the first charging management chip is a chip used for wireless charging management.

[0110] In an embodiment of the present disclosure, the first switching device can be directly connected to the battery of the first terminal. When the first terminal is used for reverse power supply, it is convenient to obtain energy from the battery and radiate wireless signals to the outside world through the power supply circuit.

[0111] The first charging management chip is also connected between the second switching device and the battery. When the first terminal is used for charging, the voltage input to the battery can be controlled based on the first management chip. In this way, when the voltage input to the battery through the charging circuit is too high, the voltage input to the battery can be controlled to be reduced to achieve overvoltage protection for charging the first terminal.

[0112] Please refer to Figure 4 In some embodiments, the charging device further includes: a third switching device 16; the power module further includes: a second charging management chip 133;

[0113] The third switch device 16 is connected to the USB interface of the first terminal, and the second charging management chip is connected between the third switch device and the battery;

[0114] The second charging management chip 133 is used to send a control signal to the third switching device 16 to control whether the third switching device 16 is turned on based on the wired charging signal received by the USB interface; wherein, when the third switching device 16 is turned on, the wired charging signal received by the USB interface is transmitted to the power supply module.

[0115] Here, the third switch device can be any of various switch devices. For example, the third switch device can be a single-pole single-throw switch, a relay, or a metal oxide semiconductor field effect transistor, etc., which is not limited here.

[0116] Here, the second charging management chip is a chip for wired charging management.

[0117] In the embodiment of the present disclosure, the second charging management chip may also be used to control whether the third switching device is turned on or off, thereby realizing whether the first terminal is charged through a wired charging signal.

[0118] Of course, in other embodiments, the third switching device can also be connected to the control module. In this way, the control signal sent by the control module can be used to control the conduction or shutdown of the third switching device, thereby realizing whether the first terminal is charged through the wired charging signal. Thus, in this embodiment, the control signal can control the conduction or non-conduction of the first switching device, the second switching device, or the third switching device, thereby realizing whether the first terminal is used for wireless reverse power supply, wireless forward charging, or wired charging.

[0119] It should be noted that the following description of a charging method corresponds to the description of the above-mentioned charging device. For technical details not disclosed in the charging method embodiment of this disclosure, please refer to the description of the charging device embodiment of this disclosure, which will not be elaborated here.

[0120] Figure 5 is a flow chart showing a charging method according to an exemplary embodiment. Figure 3 As shown, the method includes the following steps:

[0121] Step S31, obtaining a charge and discharge control signal;

[0122] Step S32, determining whether the charge and discharge control signal is a reverse power supply control signal;

[0123] Step S33: If the charge-discharge signal is a reverse power supply control signal, a target reverse power supply boost mode is selected from at least two alternative boost modes to boost the battery voltage of the first terminal;

[0124] Step S34: sending a wireless charging signal to the outside world based on the boosted reverse power supply signal.

[0125] The charging method provided in the embodiments of the present disclosure is applied to a first terminal. Here, the first terminal can be any electronic device capable of receiving radio frequency signals. For example, the first terminal can be a mobile communication device or a laptop computer. Here, the first terminal can also be used to transmit radio frequency signals.

[0126] Here, the charge and discharge control signal includes: a reverse power supply control signal or a forward charge control signal. Here, the reverse power supply control signal corresponds to a reverse power supply boost mode; the forward charge control signal corresponds to a forward charge buck mode.

[0127] Here, the reverse power supply boost mode includes at least two alternative reverse power supply boost modes.

[0128] In some embodiments, as Figure 6 As shown, the method includes:

[0129] Step S35: If the charge and discharge signal is a forward charging control signal, the corresponding forward charging voltage reduction mode is called to reduce the voltage of the received wireless charging signal, and the first terminal is charged based on the reduced voltage.

[0130] Here, the reverse power supply boost mode is to increase the input voltage by a predetermined ratio and then output it; the forward charge buck mode is to reduce the input voltage by a predetermined ratio and then output it.

[0131] For example, if the reverse power supply boost mode is 1:4, the output voltage is 4 times the input voltage; if the forward charging mode is 4:1, the output voltage is 1 / 4 of the input voltage. times.

[0132] Here, the reverse power supply boost mode may be a 1:N mode; the forward charging buck mode may be a 1:N mode; wherein N is a positive integer greater than 1.

[0133] In some embodiments, the method comprises:

[0134] Based on the charge and discharge control signal, a boost ratio used in the target reverse power supply boost mode is determined, wherein the boost ratio includes at least two boost ratios.

[0135] Here, the target reverse power supply boost mode is a 1:N mode; wherein N is a positive integer greater than 1.

[0136] If the target reverse power supply boost mode is 1:4, the boost ratio may be 1:2, 1:3 or 1:4. If the target reverse power supply mode is 1:3, the boost ratio may be 1:2 or 1:3.

[0137] Here, the boost ratio may be 1:N; for example, the boost ratio may be 1:2, 1:3, or 1:4.

[0138] In an embodiment of the present disclosure, if the charge-discharge control signal is determined to be a reverse power supply control signal, the corresponding reverse power supply boost mode is invoked to boost the battery voltage of the first terminal and transmit a wireless charging signal to the outside world; thereby, the first terminal is able to power other receiving devices. Furthermore, in an embodiment of the present disclosure, the power supplied by the first terminal is increased by boosting the voltage. This, on the one hand, ensures that the current in the coil used by the first terminal to transmit the wireless charging signal to the outside world is within a controllable range, thereby reducing coil heating and, in turn, coil losses. It also accelerates the charging speed of other receiving devices and improves power supply efficiency.

[0139] Furthermore, in the disclosed embodiment, the boost ratio used in the reverse power supply boost mode can be determined based on the charge and discharge control signal, allowing the first terminal to switch between different boost ratios. This allows the first terminal to charge other receiving devices using an appropriate boost ratio when used for reverse power supply, thereby meeting the charging needs of other receiving devices.

[0140] Moreover, in an embodiment of the present disclosure, if it is determined that the charging and discharging control signal is a forward charging control signal, the corresponding forward charging step-down mode is called to step down the voltage of the received wireless charging signal, and the first terminal is powered based on the stepped-down voltage, thereby realizing wireless charging of the first terminal.

[0141] like Figure 7 As shown, in some embodiments, the method further includes:

[0142] Step S41, sending a detection signal;

[0143] Step S42, receiving a feedback signal returned based on the detection signal;

[0144] Step S43: Based on the feedback signal, determine whether a second terminal exists within a predetermined range of the first terminal.

[0145] In one embodiment, the detection signal is an analog echo detection signal, for example, a ping signal.

[0146] Here, the detection signal is a signal having a frequency less than a predetermined frequency.

[0147] It can be understood that the greater the frequency of the detection signal, the greater the energy carried in the detection signal; therefore, a detection signal with too high a frequency may cause overvoltage damage to the second terminal receiving end chip; thus, in the embodiment of the present disclosure, the detection signal frequency is limited to below a predetermined frequency to reduce damage to the second terminal receiving end chip.

[0148] Here, the feedback signal and the detection signal have different frequencies.

[0149] In one embodiment, the predetermined range is a range smaller than 5 mm.

[0150] Here, the second terminal is any electronic device that can receive radio frequency signals. For example, the second terminal can be a mobile communication device, such as a mobile phone, or a laptop computer.

[0151] In an embodiment of the present disclosure, the first terminal transmits a detection signal at a certain frequency. If a feedback signal based on the detection signal is received, for example, a feedback signal with a changed frequency is received, it can be determined that the second terminal is within a predetermined range of the first terminal. In this manner, the embodiment of the present disclosure can use the first terminal to wirelessly charge the second terminal.

[0152] In actual application, based on the charging device of the above embodiment, if the first terminal turns on the wireless reverse power supply software switch, the control module controls the first switch device to be turned on and controls the second switch device to be turned off, then the first terminal sends a detection signal.

[0153] In some embodiments, the method further comprises:

[0154] determining, based on a boosted voltage when the first terminal is powered, a target frequency corresponding to sending the detection signal;

[0155] The sending of the detection signal comprises:

[0156] The detection signal is transmitted based on the target frequency.

[0157] In practical applications, such as Figure 2 As shown, based on the voltage at Vout, which is the voltage after boosting when the first terminal is powered, the target frequency corresponding to the sending of the detection signal is determined.

[0158] For example, a correspondence table is created between the boosted voltage (Vout voltage) and the frequency when the first terminal is supplying power; the correspondence table is stored in the first terminal; the current Vout voltage is detected; and based on the correspondence table, the frequency corresponding to the current Vout voltage is selected as the target frequency.

[0159] The boosted voltage when the first terminal is powered in the above embodiment can be considered the power supply voltage. In one embodiment, if the power supply voltage is greater than a first voltage threshold, the target frequency is greater than a first frequency threshold; if the power supply voltage is less than a second voltage threshold, the target frequency is less than the first frequency threshold; wherein the first voltage threshold is greater than the second voltage threshold, and the first frequency threshold is less than the second frequency threshold.

[0160] In an embodiment of the present disclosure, a target frequency for the detection signal can be selected based on the boosted voltage supplied by different first terminals, and the detection signal can be transmitted based on the target frequency. Thus, the embodiment of the present disclosure can inform a second terminal of the magnitude of the supply voltage supplied by the first terminal through the detection signal, thereby facilitating the second terminal's decision as to whether to select the first terminal for charging.

[0161] In some embodiments, the method further comprises:

[0162] Obtaining authentication information of the second terminal;

[0163] Based on the authentication information, when the second terminal authentication succeeds, the boost ratio is controlled to operate at a first boost ratio; when the second terminal authentication fails, the boost ratio is controlled to operate at a second boost ratio; wherein the first boost ratio is greater than the second boost ratio.

[0164] The obtaining of the authentication information of the second terminal includes:

[0165] receiving the authentication information provided by the second terminal;

[0166] or,

[0167] The authentication information is obtained based on the demodulated received wireless charging signal.

[0168] In practical applications, the authentication information of the second terminal can be obtained through out-of-band communication or in-band communication. One method of out-of-band communication is to receive the authentication information provided by the second terminal. For example, the authentication information sent by the second terminal can be received through communication methods such as NFC, Zigbee, or Bluetooth. One method of in-band communication is to obtain the authentication information based on demodulating a received wireless charging signal. For example, the second terminal bundles the authentication information into the wireless charging signal and transmits it along with the wireless charging signal; thus, the first terminal obtains the authentication information based on the demodulated received wireless charging signal.

[0169] In this way, if the authentication information is sent using an in-band communication method, the authentication information can be directly obtained from the wireless charging signal, and there is no need to send the authentication information separately, thereby saving communication resources.

[0170] If out-of-band communication is used to send the authentication information, the influence of load fluctuations and coil coupling on the authentication information can be reduced, and the probability of failure in signal demodulation of the authentication information can be reduced, thereby reducing the probability of charging interruption, thereby greatly improving the communication quality.

[0171] In the embodiment of the present disclosure, the authentication information is used to indicate whether the second terminal is a legitimate authentication device. If so, it is determined that the authentication of the second terminal is successful; if not, it is determined that the authentication of the second terminal is failed.

[0172] In one embodiment, if the authentication is successful, the first terminal and the second terminal use a private protocol for wireless charging; if the authentication fails, the first terminal and the second terminal use the BPP protocol or EPP protocol of the standard QI specification for charging.

[0173] Here, the BPP protocol is a wireless charging protocol that supports 5W, and the EPP protocol is a wireless charging protocol that supports 10W.

[0174] In practical applications, the first boost ratio may be the boost ratio determined when wireless charging is performed using a proprietary protocol in the above-mentioned embodiment. For example, the first boost ratio is 1:2 or 1:4. The second boost ratio may be the boost ratio determined when wireless charging is performed using the BPP protocol or EPP protocol of the QI specification in the above-mentioned embodiment. For example, the second boost ratio may be 1:1.

[0175] In this embodiment of the present disclosure, authentication information can be used to determine whether the second terminal has passed authentication. If authentication is successful, wireless charging of the second terminal is performed using a relatively high voltage step-up ratio. If authentication fails, wireless charging of the second terminal is performed using a relatively low voltage step-up ratio. In this way, an appropriate voltage step-up ratio can be determined based on the type of the second terminal to charge the second terminal.

[0176] In some embodiments, before receiving the authentication information provided by the second terminal, the method further includes:

[0177] Sending an authentication request to the second terminal; wherein the authentication information is returned based on the authentication request, or the authentication information is pushed by the second terminal.

[0178] In the disclosed embodiment, the first terminal can proactively initiate an authentication request to the second terminal, which facilitates the second terminal sending authentication information based on the authentication request, thereby determining whether the second terminal has passed authentication based on the authentication information. Of course, in this embodiment, the sending of the authentication request to the second terminal can also be based on an in-band communication method or an out-of-band communication method.

[0179] In some embodiments, the method further comprises:

[0180] Obtaining charging capability information of the second terminal;

[0181] A charge and discharge control signal for controlling the voltage boost ratio is determined based on the authentication information and the charging capability information.

[0182] Here, the charging capability information includes at least one of the following: received charging power, received charging voltage, and received charging current.

[0183] In the disclosed embodiments, a voltage ratio suitable for charging the second terminal can be determined based on the second terminal's authentication information and charging capability information, thereby meeting the second terminal's charging needs. For example, if the second terminal is an authenticated receiving device, but the charging power it can receive is less than a predetermined power, the first terminal can determine the voltage ratio corresponding to the predetermined power. In this way, while meeting the second charging requirement, damage to the second terminal due to excessive charging power is reduced.

[0184] Of course, in other embodiments, the method may include: determining the charge and discharge control signal for controlling the boost ratio based only on the authentication information.

[0185] In some embodiments, the method further comprises:

[0186] If it is determined that the first terminal is charged, the battery module may also be charged using a wired charging signal received by a Universal Serial Bus (USB) interface of the first terminal.

[0187] In the embodiment of the present disclosure, the USB interface of the first terminal can also be used to receive a wired charging signal, thereby achieving wired charging of the first terminal.

[0188] In order to further introduce the embodiment of the present disclosure in detail, a charging method is also provided, wherein the charging method includes the following steps:

[0189] Step S51: activating the wireless reverse power supply switch of the first terminal;

[0190] Optionally, in response to turning on the reverse power supply switch of the display interface of the first terminal, the wireless reverse power supply boost mode of the first terminal is started.

[0191] Here, the first terminal is a wireless reverse charging device. For example, the first terminal may be a mobile phone.

[0192] Here, the processor of the first terminal charging device controls the first switching device to be turned on and controls the second switching device to be turned off according to the charge and discharge control signal; wherein, the charge and discharge control signal is generated based on the reverse power supply switch acting on the first terminal display interface.

[0193] Here, the processor is the control module of the above embodiment.

[0194] Step S52: controlling the boost ratio of the reverse power supply boost mode of the first terminal to be 1:N;

[0195] Optionally, the processor controls the boost ratio of the reverse power supply boost mode to be 1:N; wherein N is a positive integer greater than 1, so that the power supply voltage of the transceiver of the first terminal is increased to N times the input to the transceiver.

[0196] Here, if the 1:N ratio is 1:2, the supply voltage sent by the first terminal is 2×VBAT, where VBAT is a battery voltage. For example, if VBAT is approximately (3.9, 4.4)V, then the supply voltage is approximately (7.8, 8.8)V.

[0197] In one embodiment, if the battery is a two-string battery system, the boost ratio of the reverse power supply boost mode of the first terminal can be controlled to be 1:1. Thus, in this embodiment, the power supply voltage sent by the first terminal is also 2×VBAT.

[0198] Step S53: controlling the transceiver of the first terminal device to be in a reverse power supply boost mode;

[0199] Optionally, if the processor detects that there is a power supply voltage at the output end of the transceiver, the processor initializes the transceiver through the I2C interface and controls the transceiver to operate in a transmission mode, so that the transceiver radiates wireless signals to the outside world.

[0200] Step S54: sending a detection signal of the target frequency;

[0201] Optionally, the transceiver automatically detects a power supply voltage, determines a target frequency of a detection signal according to the power supply voltage, and sends the detection signal based on the target frequency.

[0202] Here, the detection signal is a Ping signal.

[0203] Step S55: Perform BPP protocol identification according to the standard QI specification;

[0204] Optionally, the first terminal performs BPP protocol identification of a second terminal within a predetermined range in accordance with standard QI specifications.

[0205] Here, in actual application, the second terminal is placed above the first terminal; at this time, the coil of the receiving device and the coil of the first terminal are within a predetermined distance range; if the first terminal detects that the frequency of the transmitted detection signal has changed, it is determined that the second terminal exists within the predetermined range.

[0206] Here, the second terminal is a receiving device, which is any device capable of receiving wireless signals, for example, a mobile phone.

[0207] Step S56: the first terminal charges the second terminal based on the BPP protocol of the standard Qi standard;

[0208] Step S57: Determine whether the second terminal is successfully authenticated;

[0209] Optionally, the first terminal sends an authentication request to the second terminal and receives authentication information returned by the second terminal based on the authentication request; if, based on the authentication information, it is determined that the second terminal is a legal device, it is determined that the authentication of the second terminal is successful; if, based on the authentication information, it is determined that the second terminal is not a legal device, it is determined that the authentication of the second terminal has failed.

[0210] In one embodiment, if the authentication is successful, the voltage boost ratio of the second terminal is determined to be 1:N; if the authentication fails, the voltage boost ratio of the second terminal is determined to be 1:1.

[0211] In actual application, if the authentication is successful, the second terminal is determined to adopt the 1:N reverse power supply determined in the above step S52; if the authentication fails, the second terminal is determined to maintain the standard QI specification BPP reverse power supply in the above step S55.

[0212] In other embodiments, after determining that the second terminal passes authentication, the following steps may also be included:

[0213] Step S58: receiving charging capability information of the second terminal, and determining the boost ratio based on the charging capability information;

[0214] Optionally, the first terminal receives the charging capability information sent by the second terminal; and based on the charging capability information, determines a boost ratio of reverse power supply boosting of the first terminal.

[0215] For example, if the second terminal's terminal capability information is 20W, and the processor of the first terminal controls the voltage boost ratio to 1:4, the first terminal's supply voltage is 4×VBAT. If VBAT is (3.9, 4.4)V, the first terminal's supply voltage is (3.9, 4.4)V, and the coil of the first terminal's transceiver is essentially guaranteed to be within 1.25A. This minimizes coil heating.

[0216] Step S59: the first terminal stops reverse power supply.

[0217] Optionally, if it is determined that the second terminal has moved to a target distance, the first terminal is determined to stop reverse power supply; wherein, the target distance is outside the predetermined distance range; or, in response to the operation of turning off the reverse power supply switch of the first terminal display interface, the first terminal is controlled to stop reverse power supply.

[0218] In practical applications, the processor of the first terminal turns off the first switching device to stop reverse power supply to the first terminal.

[0219] Of course, in this embodiment, the transceiver of the first terminal further has a module for implementing at least one of overvoltage protection, overcurrent protection, overtemperature protection, and foreign object detection functions, so as to improve the safety of the operation of the first terminal.

[0220] In the embodiment of the present disclosure, when the first terminal is used for reverse power supply, if the boost ratio adopted is 1:4 or higher, the power supply voltage provided by it can reach 20W or above, greatly improving the power of wireless charging. In addition, in the embodiment of the present disclosure, while improving the power of wireless charging, the efficiency of wireless charging can also be improved by increasing the power supply voltage. In addition, in the embodiment of the present disclosure, by increasing the power by increasing the power supply voltage, the current in the coil can be relatively limited to a controllable range, thereby reducing coil heating and reducing coil losses.

[0221] In the disclosed embodiments, authorization authentication can be used to determine a 1:N boost ratio for successfully authenticated receiving devices, or a 1:N boost ratio can be determined based on the receiving device's charging capability information, where N is a positive integer greater than 1. Alternatively, normal BPP charging can be maintained for receiving devices that fail authentication. This allows the appropriate charging mode to be selected based on the receiving device's charging capability and power requirements. This can also improve the standardization and safety of wireless charging, by only charging successfully authenticated receiving devices at a relatively high power level.

[0222] The present disclosure also provides a terminal, including:

[0223] a memory for storing processor-executable instructions;

[0224] The processor is configured to: implement the charging method described in any embodiment of the present disclosure when executing the executable instructions.

[0225] The memory may include various types of storage media, which are non-transitory computer storage media that can continue to store information after the communication device loses power.

[0226] The processor can be connected to the memory via a bus, etc., and is used to read the executable program stored in the memory, for example, to implement the following Figure 5-Figure 7 At least one of the methods shown.

[0227] Figure 8 FIG1 is a block diagram of a charging device 800 according to an exemplary embodiment. For example, the device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0228] Reference Figure 8 , the apparatus 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0229] The processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0230] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0231] The power component 806 provides power to the various components of the device 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 800.

[0232] The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0233] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0234] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0235] The sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of the device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800. The sensor assembly 814 can also detect changes in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration / deceleration of the device 800, and temperature changes of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0236] The communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices. The device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0237] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described method.

[0238] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the apparatus 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0239] An embodiment of the present disclosure further provides a computer-readable storage medium, wherein the computer-readable storage medium stores an executable program, wherein when the executable program is executed by a processor, the charging method described in any embodiment of the present disclosure is implemented.

[0240] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0241] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A charging device, characterized in that: Applied to a first terminal, the charging device includes: a transceiver, a voltage conversion module, and a power supply module; wherein the voltage conversion module includes at least two boost ratios; wherein, The voltage conversion module is connected between the transceiver and the power module, and is used to boost the output voltage of the power module and provide it to the transceiver when the first terminal is reversely powered, and to step down the input voltage provided by the transceiver and provide it to the power module when the first terminal is forwardly charged; The transceiver is configured to radiate a wireless charging signal based on the voltage boosted by the voltage conversion module when the first terminal is powered; receive the wireless charging signal and convert the received wireless charging signal into an input voltage for transmission to the voltage conversion module when the first terminal is charging; send a detection signal; receive a feedback signal returned based on the detection signal; determine, based on the feedback signal, that a second terminal is within a predetermined range of the first terminal; and obtain authentication information of the second terminal; Based on the authentication information, when the second terminal authentication succeeds, the boost ratio operates at a first boost ratio; when the second terminal authentication fails, the boost ratio operates at a second boost ratio; wherein the first boost ratio is greater than the second boost ratio.

2. The charging device according to claim 1, characterized in that The charging device further includes: A control module connected to the voltage conversion module; The control module is used to control the boost ratio used by the voltage conversion module for boosting.

3. The charging device according to claim 2, characterized in that The device further comprises: a switch module connected between the voltage conversion module and the power supply module; the switch module comprises: a first switch device and a second switch device; The switch module is also connected to the control module and is used to switch the switch state based on the control signal sent by the control module to achieve isolation between the power supply circuit and the charging circuit of the charging device; wherein the power supply circuit is a circuit formed by the power supply module, the first switch device, the voltage conversion module and the transceiver; the charging circuit is a circuit formed by the transceiver, the voltage conversion module, the second switch device and the power supply module.

4. The charging device according to claim 3, characterized in that The power module includes: a battery and a first charging management chip; The first switching device is connected between the voltage conversion module and the battery; The second switching device is connected between the voltage conversion module and the first charging management chip, and the first charging management chip is connected to the battery; when the first terminal is charging, the first charging management chip adjusts the voltage after being boosted by the voltage conversion module within a set threshold range.

5. The charging device according to claim 4, characterized in that The charging device further includes: a third switching device; the power supply module further includes: a second charging management chip; The third switch device is connected to the USB interface of the first terminal, and the second charging management chip is connected between the third switch device and the battery; The second charging management chip is used to send a control signal to the third switching device to control whether the third switching device is turned on based on the wired charging signal received by the USB interface; wherein, when the third switching device is turned on, the wired charging signal received by the USB interface is transmitted to the power supply module.

6. A charging method, characterized in that: Applied to a first terminal, the method includes: Obtaining charge and discharge control signals; Determining whether the charge and discharge control signal is a reverse power supply control signal; If the charge and discharge control signal is a reverse power supply control signal, selecting a target reverse power supply boost mode from at least two alternative boost modes to boost the battery voltage of the first terminal; Based on the boosted reverse power supply signal, a wireless charging signal is sent to the outside world; Send detection signal; receiving a feedback signal returned based on the detection signal; determining, based on the feedback signal, that a second terminal exists within a predetermined range of the first terminal; Obtaining authentication information of the second terminal; Based on the authentication information, when the second terminal authentication succeeds, the boost ratio is controlled to operate at a first boost ratio; when the second terminal authentication fails, the boost ratio is controlled to operate at a second boost ratio; wherein the first boost ratio is greater than the second boost ratio.

7. The method according to claim 6, characterized in that The method comprises: Based on the charge and discharge control signal, a boost ratio used in the target reverse power supply boost mode is determined, wherein the boost ratio includes at least two boost ratios.

8. The method according to claim 6 or 7, characterized in that The method comprises: If the charge and discharge control signal is a forward charging control signal, the corresponding forward charging voltage reduction mode is called to reduce the voltage of the received wireless charging signal, and the first terminal is charged based on the reduced voltage.

9. The method according to claim 6, characterized in that The method further comprises: determining, based on a boosted voltage when the first terminal is powered, a target frequency corresponding to sending the detection signal; The sending of the detection signal comprises: The detection signal is transmitted based on the target frequency.

10. The method according to claim 6, characterized in that The obtaining of authentication information of the second terminal includes: receiving the authentication information provided by the second terminal; or, The authentication information is obtained based on the demodulated received wireless charging signal.

11. The method according to claim 10, characterized in that Before receiving the authentication information provided by the second terminal, the method further includes: Sending an authentication request to the second terminal; wherein the authentication information is returned based on the authentication request, or the authentication information is pushed by the second terminal.

12. The method according to claim 7, characterized in that The method further comprises: Obtaining charging capability information of the second terminal; A charge and discharge control signal for controlling the voltage boost ratio is determined based on the authentication information and the charging capability information.

13. The method according to claim 6, characterized in that The method further comprises: If it is determined that the first terminal is charged, the power module may be charged using a wired charging signal received by a USB interface of the first terminal.

14. A terminal, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: implement the charging method described in any one of claims 6 to 13 when executing the executable instructions.

15. A computer-readable storage medium, characterized in that The readable storage medium stores an executable program, wherein the executable program, when executed by a processor, implements the charging method according to any one of claims 6 to 13.

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