WO2019061351A1 - Charging control method, device, and system - Google Patents

Abstract

A charging control method, a device, and a system. The method comprises: receiving battery attribute information sent by the electronic device after a connection has been established between a charger and an electronic device, the battery attribute information comprising indication information for indicating a charging mode of a battery (S101); determining, according to the charging mode of the battery, a charging voltage and a charging current currently required by the battery (S102); and outputting a PWM charging signal to the battery of the electronic device according to the charging voltage and the charging current, the PWM charging signal being used to directly charge the battery of the electronic device by means of the changing voltage and the charging current (S103). Therefore, a charger outputs a corresponding charging voltage and charging current by means of a PWM charging signal and has a function for adjusting a charging voltage and a charging current and thus is adaptable to various electronic devices. In addition, an electronic device does not need to be equipped with a charging chip in order to adjust a charging voltage and a charging current. Therefore, the invention reduces heat generation of the electronic device and reduces wear and tear of the electronic device due to charging.

Description

Charging control method, device and system Technical field

Embodiments of the present invention relate to the field of battery technologies, and in particular, to a charging control method, device, and system.

Background technique

Generally, different types of electronic devices will be equipped with different chargers, for example, mobile phones with mobile phone chargers, PADs with PAD chargers, laptops with laptop chargers, drones with drone chargers, and chargers cannot be mixed. For example, the mobile phone charger cannot charge the laptop. If the user needs to go out, and the user needs to carry a mobile phone, a PAD, a laptop, a drone, etc., in order to charge these electronic devices to ensure normal operation, the user also needs to carry a charger matched by these electronic devices, which is very troublesome. And it brings a lot of inconvenience to the user. However, there is currently no charger that can match multiple types of electronic devices.

Summary of the invention

Embodiments of the present invention provide a charging control method, device, and system for charging a charger to a plurality of types of electronic devices, and also reducing heat generation of the electronic device and reducing loss of the electronic device by heat generation.

In a first aspect, an embodiment of the present invention provides a charging control method, including:

After the charger establishes a connection with the electronic device, receiving battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;

Determining, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery;

Determining an output pulse width modulation (PWM) charging signal according to the charging voltage and the charging current;

The PWM charging signal is output to a battery of the electronic device, and the PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current.

In a possible design, the determining is determined according to the charging voltage and the charging current The PWM charging signal, including:

Determining a frequency of the PWM charging signal according to the charging voltage;

A duty cycle of the PWM charging signal is determined based on the charging current.

In a possible design, determining the frequency of the PWM charging signal according to the charging voltage includes:

A frequency of the PWM charging signal is determined based on the charging voltage and a default frequency of the PWM charging signal, the default frequency corresponding to a default voltage of the charger.

In one possible design, the frequency is proportional to the charging voltage.

In one possible design, the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage.

In a possible design, determining the duty cycle of the PWM charging signal according to the charging current includes:

A duty cycle of the PWM charge signal is determined based on the charge current and a default duty cycle of the PWM charge signal, the default duty cycle corresponding to a default current of the charger.

In one possible design, the duty cycle is proportional to the charging current.

In one possible design, the duty cycle is increased by a preset duty cycle value each time the charge current rises by a predetermined current value.

In a possible design, the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.

In one possible design, the method further includes:

Receiving a current charging parameter of the battery sent by the electronic device;

Adjusting a current charging voltage and/or a charging current currently required by the battery according to a current charging parameter of the battery and a charging mode of the battery;

Adjusting the PWM charging signal according to the adjusted charging current and/or the adjusted charging current;

And outputting the adjusted PWM charging signal to the battery of the electronic device, the adjusted PWM charging signal for directly charging the battery of the electronic device with the adjusted charging voltage and/or the adjusted charging current.

In one possible design, the current charging parameter includes at least one of the following: current voltage, current current, current temperature, current power.

In a second aspect, an embodiment of the present invention provides a charging control method, including:

After the charger establishes a connection with the electronic device, sending, to the charger, battery attribute information of the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;

Receiving a PWM charging signal output by the charger, the PWM charging signal for directly charging a battery of the electronic device with a charging voltage and a charging current currently required by the battery.

In one possible design, the frequency of the PWM charging signal corresponds to a charging voltage currently required by the battery; and/or,

The duty cycle of the PWM charging signal corresponds to the current charging current required by the battery.

In one possible design, the method further includes:

Transmitting, to the charger, a current charging parameter of the battery, the current charging parameter being used by the charger to adjust the PWM charging signal;

Receiving an adjusted PWM charging signal output by the charger, the adjusted PWM charging signal for directly charging a battery of the electronic device with the adjusted charging voltage and/or the adjusted charging current.

In one possible design, the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.

In a possible design, the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.

In a third aspect, an embodiment of the present invention provides a charger, including: a communication interface, a processor, and a charging interface; the processor is electrically connected to the communication interface and the charging interface, respectively;

The communication interface is configured to connect to an electronic device, and receive battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;

The processor is configured to determine, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery; and determine an output PWM charging signal according to the charging voltage and the charging current;

The charging interface is configured to connect the electronic device to a battery output of the electronic device The PWM charging signal determined by the processor, the PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current.

In a possible design, the processor is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage; and determine a duty ratio of the PWM charging signal according to the charging current.

In a possible design, the processor is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage and a default frequency of a PWM charging signal, where the default frequency is the default of the charger The voltage corresponds.

In one possible design, the frequency is proportional to the charging voltage.

In one possible design, the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage.

In a possible design, the processor is specifically configured to: determine a duty ratio of the PWM charging signal according to the charging current and a default duty ratio of a PWM charging signal, where the default duty ratio is The default current of the charger corresponds.

In one possible design, the duty cycle is proportional to the charging current.

In one possible design, the duty cycle is increased by a preset duty cycle value each time the charge current rises by a predetermined current value.

In a possible design, the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.

In a possible design, the communication interface is further configured to receive a current charging parameter of the battery sent by the electronic device;

The processor is further configured to adjust a current charging voltage and/or a charging current required by the battery according to a current charging parameter of the battery and a charging mode of the battery; and according to the adjusted charging current and/or adjustment After the charging current, adjusting the PWM charging signal;

The charging interface is further configured to output an adjusted PWM charging signal to a battery of the electronic device, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery charging of the electronic device.

In a possible design, the current charging parameter includes at least one of the following: a current voltage, Current current, current temperature, current power.

In one possible design, the communication interface and the charging interface are integrated into the same interface.

In a fourth aspect, an embodiment of the present invention provides an electronic device, including: a communication interface, a charging interface, and a battery; wherein the battery is electrically connected to the communication interface and the charging interface, respectively;

The communication interface is configured to connect a charger, and send battery attribute information of the electronic device to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery;

The charging interface is configured to connect to the charger, and receive a PWM charging signal output by the charger, where the PWM charging signal is used to directly charge the battery with a charging voltage and a charging current currently required by the battery. .

In one possible design, the frequency of the PWM charging signal corresponds to a charging voltage currently required by the battery; and/or,

The duty cycle of the PWM charging signal corresponds to the current charging current required by the battery.

In a possible design, the communication interface is further configured to send a current charging parameter of the battery to the charger, where the current charging parameter is used by the charger to adjust the PWM charging signal;

The charging interface is further configured to receive an adjusted PWM charging signal output by the charger, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery of the electronic device is charged.

In one possible design, the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.

In a possible design, the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.

In one possible design, the communication interface and the charging interface are integrated into the same interface.

A fifth aspect, an embodiment of the present invention provides a charging control system, comprising: the charger according to the third aspect of the present invention, and the electronic device according to the fourth aspect of the present invention;

The charger is configured to charge a battery of the electronic device.

A charging control method, device and system provided by an embodiment of the present invention, through a charger and an electronic After the device establishes the connection, receiving battery attribute information sent by the electronic device, the battery attribute information includes indication information for indicating a charging mode of the battery; determining, according to a charging mode of the battery, a current charging required by the battery a voltage and a charging current; outputting, according to the charging voltage and the charging current, a PWM charging signal to a battery of the electronic device, the PWM charging signal being used to directly direct the electron with the charging voltage and the charging current The battery of the device is charged. Therefore, the charger of the embodiment can output the corresponding charging voltage and charging current through the PWM charging signal, so the charger of the embodiment has the function of adjusting the charging voltage and the charging current, so that the charger can be adapted to various types. Electronic devices, when the user goes out, only need to carry such a charger to charge various electronic devices, which is convenient for the user. In addition, since the charging chip provided in the electronic device in the prior art generates heat when adjusting the charging voltage and the charging current, the electronic device charged by the charger does not need to set the charging chip to adjust the charging voltage and the charging current, and therefore, reduces The heat generation of the electronic device charged by the charger of the present invention reduces the loss of charging to the electronic device.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a flowchart of a charging control method according to an embodiment of the present invention;

2 is a flowchart of a charging control method according to another embodiment of the present invention;

FIG. 3 is a flowchart of a charging control method according to another embodiment of the present invention; FIG.

4 is a schematic structural diagram of a charger according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a charging control system according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art obtain the following without creative efforts. All other embodiments obtained are within the scope of the invention.

FIG. 1 is a flowchart of a charging control method according to an embodiment of the present invention. As shown in FIG. 1 , the method in this embodiment may be applied to a charger. The method in this embodiment may include:

S101. After establishing a connection between the charger and the electronic device, receiving battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery.

In this embodiment, the charger establishes a connection with the electronic device, and the charger and the electronic device perform authentication identification. In the process of the authentication identification, the charger receives the battery attribute information sent by the electronic device, and the battery attribute information includes the electronic device for indicating the electronic device. The indication of the battery's charging mode.

The electronic device may be a mobile phone, a tablet computer, a notebook computer, a camera, a drone, or the like.

It should be noted that the charger and the electronic device can be connected by wire or wirelessly. Wherein, in the manner that the charger and the electronic device are connected by wire, the electronic device may have a type-c interface.

S102. Determine, according to a charging mode of the battery, a charging voltage and a charging current that are currently required by the battery.

In this embodiment, the charger receives the battery attribute information sent by the electronic device, determines the charging mode of the battery according to the attribute information of the battery, and then determines the charging voltage and the charging current currently required by the battery according to the charging mode of the battery.

The charging mode of the battery may include: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging with a predetermined current until the voltage reaches a predetermined voltage, and then performing the predetermined voltage Press charging; or, charging at a voltage greater than the full voltage of the battery; or charging at a voltage greater than the current voltage of the battery. The charging mode of this embodiment is not limited to this.

If the charging mode of the battery is constant voltage charging at a predetermined voltage, the charger determines that the charging voltage currently required by the battery is the predetermined voltage, and the current charging current required by the battery may be the rated current of the battery or the default current of the charger. .

If the charging mode of the battery is constant current charging with a predetermined current, the charger determines that the current charging current required by the battery is the predetermined current, and the current charging voltage required by the battery may be a voltage greater than the current voltage or the full voltage of the battery. value.

If the charging mode of the battery is to perform constant current charging with a predetermined current until the voltage reaches a predetermined power Pressing, and then performing constant voltage charging with the predetermined voltage, the charger determines that the current charging current required by the battery is the predetermined current, and the current charging voltage required by the battery may be a voltage value greater than the current voltage or the full voltage of the battery. .

If the charging mode of the battery is charged at a voltage greater than the full voltage of the battery, the charger determines that the currently required charging voltage of the battery is a voltage value greater than the full voltage of the battery, for example, the full voltage of the battery is 4.8V, correspondingly The charging voltage can be 5V, and the current charging current required by the battery can be the rated current of the battery or the default current of the charger.

If the charging mode of the battery is charged at a voltage greater than the current voltage of the battery, the charger determines that the currently required charging voltage of the battery is a voltage value greater than the current voltage of the battery, for example, the charging voltage is equal to the current voltage of the battery + positive bias The value of the current value of the battery can be the rated current of the battery or the default current of the charger.

It should be noted that, in the embodiment, the foregoing describes an example of determining the charging voltage and the charging current currently required by the battery, but is not limited thereto. In addition, the charging voltage and the charging current currently required by the battery are determined according to the charging mode of the battery. For details, refer to related descriptions in the related art, and details are not described herein again.

S103. Determine an output PWM charging signal according to the charging voltage and the charging current, and output the PWM charging signal to a battery of the electronic device, where the PWM charging signal is used to use the charging voltage and the The charging current directly charges the battery of the electronic device.

In this embodiment, after determining the charging voltage and the charging current currently required by the battery, determining a PWM charging signal capable of outputting the charging voltage and the charging current according to the charging voltage and the charging current, and then outputting the PWM to the battery of the electronic device. A charging signal that directly charges the battery, and the PWM charging signal directly charges the battery with the charging voltage and the charging current.

In this embodiment, after establishing a connection between the charger and the electronic device, receiving battery attribute information sent by the electronic device, the battery attribute information includes indication information for indicating a charging mode of the battery; and charging according to the battery a mode of determining a charging voltage and a charging current currently required by the battery; and outputting, according to the charging voltage and the charging current, a PWM charging signal to a battery of the electronic device, the PWM charging signal being used for charging The voltage and the charging current directly charge the battery of the electronic device. Therefore, the charger of the embodiment can output the corresponding charging voltage and charging current through the PWM charging signal, so the charger of the embodiment has the function of adjusting the charging voltage and the charging current, so that the charger can be adapted to various types. Electronic equipment, at When the user goes out, it is only necessary to carry such a charger to charge various electronic devices, which is convenient for the user. In addition, since the charging chip provided in the electronic device in the prior art generates heat when adjusting the charging voltage and the charging current, the electronic device charged by the charger does not need to set the charging chip to adjust the charging voltage and the charging current, and therefore, reduces The heat generation of the electronic device charged by the charger of the present invention reduces the loss of charging to the electronic device.

2 is a flowchart of a charging control method according to another embodiment of the present invention. As shown in FIG. 2, the method in this embodiment may be applied to an electronic device. The method in this embodiment may include:

S201. After the charger establishes a connection with the electronic device, send battery attribute information of the electronic device to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery.

S202. Receive a PWM charging signal output by the charger, where the PWM charging signal is used to directly charge a battery of the electronic device with a charging voltage and a charging current currently required by the battery.

In this embodiment, the electronic device establishes a connection with the charger, and the electronic device and the charger perform the authentication identification. In the process of the authentication identification, the electronic device sends the battery attribute information to the charger, and the battery attribute information includes the electronic device for indicating the electronic device. The indication of the battery's charging mode.

The electronic device may be a mobile phone, a tablet computer, a notebook computer, a camera, a drone, or the like.

It should be noted that the electronic device and the charger can be connected by wire or wirelessly. Wherein, the electronic device and the charger are connected by wire, and the electronic device may have a type-c interface.

After the electronic device sends the battery attribute information to the charger, receiving a PWM charging signal output by the charger, the PWM charging signal directly charging the battery, and the PWM charging signal is directly charged to the battery by the charging voltage and the charging current. Charge it. Therefore, after receiving the PWM charging signal, the electronic device directly charges the PWM charging signal to the battery without adjusting the voltage and/or current.

For the charging mode, refer to the related description in the embodiment shown in FIG. 1, and details are not described herein again.

In this embodiment, after the charger establishes a connection with the electronic device, the battery attribute information of the electronic device is sent to the charger, the battery attribute information includes indication information for indicating a charging mode of the battery; and the charging is received. And outputting a PWM charging signal for directly charging the battery of the electronic device with a charging voltage and a charging current currently required by the battery Charging. Therefore, the charger of the embodiment can output the corresponding charging voltage and charging current through the PWM charging signal, so the charger of the embodiment has the function of adjusting the charging voltage and the charging current, so that the charger can be adapted to various types. Electronic devices, when the user goes out, only need to carry such a charger to charge various electronic devices, which is convenient for the user. Since the charging chip provided in the electronic device in the prior art generates heat when adjusting the charging voltage and the charging current, the electronic device of the present invention does not need to provide a charging chip to adjust the charging voltage and the charging current, thereby reducing the heat generation amount of the electronic device. , reducing the loss of charging to electronic equipment.

FIG. 3 is a flowchart of a charging control method according to another embodiment of the present invention. As shown in FIG. 3, the method in this embodiment may include:

S301. After the charger establishes a connection with the electronic device, the electronic device sends battery attribute information to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery. Accordingly, the charger receives battery attribute information transmitted by the electronic device.

S302. The charger determines, according to the charging mode of the battery, a charging voltage and a charging current that are currently required by the battery.

In this embodiment, S301 and S302 can refer to related descriptions in the embodiment shown in FIG. 1 or FIG. 2, and details are not described herein again.

S303. The charger determines a frequency of the PWM charging signal according to the charging voltage, and determines a duty ratio of the PWM charging signal according to the charging current.

In this embodiment, the frequency of the PWM charging signal is related to the charging voltage output by the PWM charging signal, and the duty ratio of the PWM charging signal is related to the charging current output by the PWM charging signal. After determining the charging voltage currently required by the battery, the charger determines the frequency of the PWM charging signal according to the charging voltage, and further determines the duty ratio of the PWM charging signal according to the charging current.

In some embodiments, the charger can determine the frequency of the PWM charging signal based on the charging voltage and a default frequency of the PWM charging signal, the default frequency corresponding to a default voltage of the charger. In this embodiment, the default voltage of the charger is known, and the charger can determine the frequency of the PWM charging signal corresponding to the default voltage according to the default voltage of the charger, and the frequency is called a default frequency. If the default voltage of the charger is 5V, the default frequency of the corresponding PWM charging signal is 1000Hz. Among them, the default voltage of the charger refers to the signal output of the charger without PWM waveform, the output voltage of the charger is 5V.

In some embodiments, the frequency of the PWM charging signal is proportional to the charging voltage. Battery current The larger the required charging voltage, the higher the frequency of the PWM charging signal. The smaller the charging voltage currently required by the battery, the smaller the frequency of the PWM charging signal.

In some embodiments, the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage. This means that the frequency of the PWM charging signal varies linearly with the charging voltage. for example:

When the frequency of the PWM charging signal is 500 Hz, the corresponding charging voltage is 3.65V.

When the frequency of the PWM charging signal is 600 Hz, the corresponding charging voltage is 4.20V.

When the frequency of the PWM charging signal is 700 Hz, the corresponding charging voltage is 4.35V.

When the frequency of the PWM charging signal is 800 Hz, the corresponding charging voltage is 4.40V.

When the frequency of the PWM charging signal is 900 Hz, the corresponding charging voltage is 4.5V.

It can be seen that for the charger, the frequency of the PWM charging signal is increased by 100 Hz for every 0.02 V increase in the charging voltage. Correspondingly, for an electronic device, for every 100 Hz increase in the frequency of the PWM charging signal, the corresponding output voltage is increased by 0.02V.

If the battery currently requires a charging voltage of 9.00V, the frequency of the PWM charging signal is 21KHz.

If the battery currently requires a charging voltage of 12.00V, the frequency of the PWM charging signal is 36KHz.

If the battery currently requires a charging voltage of 20.00V, the frequency of the PWM charging signal is 76KHz.

In some embodiments, the charger can determine a duty cycle of the PWM charging signal based on the charging voltage and a default duty cycle of the PWM charging signal, the default duty cycle corresponding to a default current of the charger. In this embodiment, the default current of the charger is known, and the charger can determine the duty ratio of the PWM charging signal corresponding to the default current according to the default current of the charger, and the duty ratio is referred to as a default duty ratio. If the default current of the charger is 5V, the default duty cycle of the corresponding PWM charging signal is 50%. The default current is the current that is output when the PWM output signal of the charger output duty cycle is 50%.

In some embodiments, the duty cycle of the PWM charging signal is proportional to the charging current. That is, the larger the current charging current required by the battery, the larger the duty cycle of the PWM charging signal, and the smaller the current charging current required by the battery, the smaller the duty cycle of the PWM charging signal.

In some embodiments, the duty cycle increases each time the charging current rises by a preset current value. Add the preset duty value. This means that the duty cycle of the PWM charging signal varies linearly with the charging current. For example: 1% duty cycle corresponds to 0.075A, and the corresponding charging current is 2A at 50% duty cycle. Therefore, for every 1% duty cycle increase, the charging current increases by 0.075A, and the duty is reduced by 1%. The charging current is reduced by 0.075A.

If the battery currently requires a charging current of 3.5A, the duty cycle of the PWM charging signal is 70%.

If the battery currently requires a charging current of 0.84A, the duty cycle of the PWM charging signal is 35%.

Based on the above description, for example, if the battery currently requires a charging voltage of 12.6 V and a charging current of 0.8 A, the charger determines that the PWM charging signal has an output frequency of 39 kHz and a duty ratio of 34%.

If the battery currently requires a charging voltage of 13.05V and a charging current of 3.83A, the charger determines that the PWM charging signal has an output frequency of 40.3 kHz and a duty cycle of 68%.

S304. The charger outputs the PWM charging signal of the frequency and the duty ratio to a battery of the electronic device.

In this embodiment, after determining the frequency and duty cycle of the PWM charging signal, the charger outputs a PWM charging signal having the frequency and the duty ratio to the battery of the electronic device. Accordingly, the electronic device receives the PWM charging signal output by the charger. A PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current.

Optionally, the method in this embodiment may further include:

S305. The electronic device sends a current charging parameter of the battery to the charger.

In this embodiment, the electronic device may send the current charging parameter of the battery to the charger in real time, or may periodically send the current charging parameter of the battery to the charger. Accordingly, the charger receives the current charging parameters of the battery transmitted by the electronic device. The current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.

S306. The charger adjusts a current charging voltage and/or a charging current currently required by the battery according to a current charging parameter of the battery and a charging mode of the battery.

In this embodiment, it is determined whether it is necessary to adjust the current charging voltage and charging current required by the battery according to the current charging parameter of the battery and the charging mode of the battery. That is, according to the current charging parameters of the battery and the charging mode of the battery, the charging voltage and the charging current are determined, and the determined charging voltage is determined. The comparison of the pre-output charging voltage and the comparison of the determined charging current with the current output charging current, if they are the same, means that it is not necessary to adjust the currently required charging voltage and charging current of the battery, and continue to output the currently output PWM charging signal. If the determined charging voltage is different from the current output charging voltage, and/or the determined charging current is different from the current output charging current, it indicates that the current required charging voltage and/or charging current needs to be adjusted, and then charged. The device adjusts the current charging voltage and/or charging current required by the battery. In this embodiment, how to determine the corresponding charging voltage and the charging current according to the current charging parameter of the battery and the charging mode of the battery can be referred to the related description in the embodiment shown in FIG. 1 , and also in the prior art. The description of this is not repeated here.

S307. The charger adjusts the PWM charging signal according to the adjusted charging current and/or the adjusted charging current.

In this embodiment, after the charger adjusts the charging current and/or the charging current, the charger adjusts the PWM charging signal according to the adjusted charging voltage and/or the adjusted charging current. For example, the charger adjusts the frequency of the PWM charging signal according to the adjusted charging voltage; the charger adjusts the duty ratio of the PWM charging signal according to the adjusted charging current, thereby obtaining the adjusted PWM charging signal; wherein, how to adjust the PWM For the frequency and duty ratio of the charging signal, refer to the related description in the embodiment shown in FIG. 2, and details are not described herein again.

S308. The charger outputs an adjusted PWM charging signal to the battery of the electronic device, where the adjusted PWM charging signal is used to directly charge the battery of the electronic device with the adjusted charging voltage and/or the adjusted charging current. .

In this embodiment, after the charger adjusts the PWM charging signal, the charger outputs the adjusted PWM charging signal to the battery of the electronic device, and accordingly, the electronic device receives the adjusted PWM charging signal output by the charger. The adjusted PWM charging signal directly charges the battery, and the adjusted PWM charging signal directly charges the battery with the adjusted charging voltage and the adjusted charging current.

In this embodiment, the charger controls the output charging voltage by the frequency of the PWM charging signal, controls the output charging current by the duty ratio of the PWM charging signal, and the PWM charging signal is used to charge the battery currently required. The voltage and charging current directly charge the battery of the electronic device. Therefore, the charger of the embodiment can control the charging voltage and the charging current required for outputting different batteries, so the charger can be adapted to various types of electronic devices, when the user goes out, only It is convenient to charge the various electronic devices by carrying such a charger. Since the charging chip provided in the electronic device in the prior art generates heat when adjusting the charging voltage and the charging current, the electronic device of the present invention does not need to provide a charging chip to adjust the charging voltage and the charging current, thereby reducing the heat generation amount of the electronic device. , reducing the loss of charging to electronic equipment. In addition, the charger can also receive the current charging parameter sent by the electronic device during charging of the battery of the electronic device, and dynamically adjust the charging voltage and/or the charging current output by the PWM charging signal according to the current charging parameter to improve the charging of the battery. Efficiency, to achieve fast charging effect.

4 is a schematic structural diagram of a charger according to an embodiment of the present invention. As shown in FIG. 4, the charger 40 of this embodiment may include: a communication interface 41, a processor 42 and a charging interface 43; It is electrically connected to the communication interface 41 and the charging interface 43.

The communication interface 41 is configured to connect to an electronic device, and receive battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;

The processor 42 is configured to determine, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery; and determine an output PWM charging signal according to the charging voltage and the charging current;

The charging interface 43 is configured to connect the electronic device, and output the PWM charging signal determined by the processor 42 to the battery of the electronic device, where the PWM charging signal is used to use the charging voltage and the charging current The battery of the electronic device is directly charged.

In some embodiments, the processor 42 is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage; and determine a duty ratio of the PWM charging signal according to the charging current.

In some embodiments, the processor 42 is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage and a default frequency of a PWM charging signal, the default frequency and a default voltage of the charger correspond.

In some embodiments, the frequency is proportional to the charging voltage.

In some embodiments, the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage.

In some embodiments, the processor 42 is specifically configured to: determine a duty ratio of the PWM charging signal according to the charging current and a default duty ratio of a PWM charging signal, where the default duty ratio is The default current of the charger corresponds.

In some embodiments, the duty cycle is proportional to the charging current.

In some embodiments, the duty cycle increases a preset duty cycle value each time the charge current rises by a predetermined current value.

In some embodiments, the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging to a predetermined voltage at a predetermined current, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than the full voltage of the battery; or charging is performed at a voltage greater than the current voltage of the battery.

In some embodiments, the communication interface 41 is further configured to receive a current charging parameter of the battery sent by the electronic device;

The processor 42 is further configured to adjust, according to a current charging parameter of the battery and a charging mode of the battery, a charging voltage and/or a charging current currently required by the battery; according to the adjusted charging current and/or Adjusting the charging current to adjust the PWM charging signal;

The charging interface 43 is further configured to output an adjusted PWM charging signal to the battery of the electronic device, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery of the electronic device is charged.

In some embodiments, the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power amount.

In some embodiments, the communication interface 41 and the charging interface 43 are integrated into the same interface. That is, the communication interface 41 and the charging interface 43 are in the same physical interface, so that in the process of charging the battery of the electronic device, only the electronic device needs to be connected to an interface, and the function of charging and transmitting information can be realized. It simplifies the appearance of the charger and facilitates the user's operation.

The charger of this embodiment can be used to implement the technical solution executed by the charger in the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.

FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in FIG. 5, the electronic device 50 of the embodiment may include: a communication interface 51, a charging interface 52, and a battery 53. Electrically connecting with the communication interface 51 and the charging interface 52;

The communication interface 51 is configured to connect a charger, and send battery attribute information of the electronic device to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery 53;

The charging interface 52 is configured to receive a PWM charging signal output by the charger, where The PWM charging signal is used to directly charge the battery 53 with the charging voltage and charging current currently required by the battery.

In some embodiments, the frequency of the PWM charging signal corresponds to a charging voltage currently required by the battery; and/or the duty cycle of the PWM charging signal corresponds to a current required current of the battery.

In some embodiments, the communication interface 51 is further configured to send a current charging parameter of the battery 53 to the charger, where the current charging parameter is used by the charger to adjust the PWM charging signal;

The charging interface 52 is further configured to receive an adjusted PWM charging signal output by the charger, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current. The battery 53 is charged.

In some embodiments, the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.

In some embodiments, the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging to a predetermined voltage at a predetermined current, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than the full voltage of the battery; or charging is performed at a voltage greater than the current voltage of the battery.

In some embodiments, the communication interface 51 and the charging interface 52 are integrated into the same interface.

The electronic device in this embodiment may be used to perform the technical solution executed by the electronic device in the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.

FIG. 6 is a schematic structural diagram of a charging control system according to an embodiment of the present invention. As shown in FIG. 6, the charging control system of this embodiment may include: a charger 40 and an electronic device 50, and a charger 50 for The battery of the electronic device 50 is charged. The charger 40 can adopt the structure of the charger embodiment shown in FIG. 4, and correspondingly, the technical solution executed by the charger in any of the foregoing method embodiments can be executed, and the implementation principle and the technical effect are similar. Let me repeat. The electronic device 50 can adopt the structure of the embodiment of the electronic device shown in FIG. 5, and correspondingly, the technical solution executed by the electronic device in any of the foregoing method embodiments can be executed, and the implementation principle and the technical effect are similar, and details are not described herein again. .

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable In the storage medium, when the program is executed, the steps including the foregoing method embodiments are performed; and the foregoing storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM) A variety of media that can store program code, such as a disk or a disc.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims (35)

A charging control method, comprising: After the charger establishes a connection with the electronic device, receiving battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery; Determining, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery; Determining an output pulse width modulated PWM charging signal according to the charging voltage and the charging current; The PWM charging signal is output to a battery of the electronic device, and the PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current. The method according to claim 1, wherein the determining the output PWM charging signal according to the charging voltage and the charging current comprises: Determining a frequency of the PWM charging signal according to the charging voltage; A duty cycle of the PWM charging signal is determined based on the charging current. The method according to claim 2, wherein the determining the frequency of the PWM charging signal according to the charging voltage comprises: A frequency of the PWM charging signal is determined based on the charging voltage and a default frequency of the PWM charging signal, the default frequency corresponding to a default voltage of the charger. The method of claim 3 wherein said frequency is proportional to said charging voltage. The method according to claim 4, wherein the frequency is increased by a preset frequency value every time the charging voltage rises by a preset voltage value. The method according to claim 2, wherein the determining the duty cycle of the PWM charging signal according to the charging current comprises: A duty cycle of the PWM charge signal is determined based on the charge current and a default duty cycle of the PWM charge signal, the default duty cycle corresponding to a default current of the charger. The method of claim 6 wherein said duty cycle is proportional to said charging current. The method according to claim 7, wherein the duty ratio is increased by a preset duty value every time the charging current rises by a preset current value. The method according to any one of claims 1-8, wherein the charging mode comprises: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current at a predetermined current The flow is charged until the voltage reaches a predetermined voltage, and then the constant voltage is charged with the predetermined voltage; or, the voltage is greater than the voltage of the full voltage of the battery; or the voltage is greater than the current voltage of the battery. The method of any of claims 1-9, further comprising: Receiving a current charging parameter of the battery sent by the electronic device; Adjusting a current charging voltage and/or a charging current currently required by the battery according to a current charging parameter of the battery and a charging mode of the battery; Adjusting the PWM charging signal according to the adjusted charging current and/or the adjusted charging current; And outputting the adjusted PWM charging signal to the battery of the electronic device, the adjusted PWM charging signal for directly charging the battery of the electronic device with the adjusted charging voltage and/or the adjusted charging current. The method according to claim 10, wherein the current charging parameter comprises at least one of the following: a current voltage, a current current, a current temperature, and a current power amount. A charging control method, comprising: After the charger establishes a connection with the electronic device, sending, to the charger, battery attribute information of the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery; Receiving a pulse width modulated PWM charging signal output by the charger, the PWM charging signal for directly charging a battery of the electronic device with a charging voltage and a charging current currently required by the battery. The method of claim 12 wherein the frequency of the PWM charging signal corresponds to a current charging voltage required by the battery; and/or, The duty cycle of the PWM charging signal corresponds to the current charging current required by the battery. The method according to claim 12 or 13, further comprising: Transmitting, to the charger, a current charging parameter of the battery, the current charging parameter being used by the charger to adjust the PWM charging signal; Receiving an adjusted PWM charging signal output by the charger, the adjusted PWM charging signal for directly setting the electronic device with the adjusted charging voltage and/or the adjusted charging current The battery is charged. The method according to claim 14, wherein the current charging parameter comprises at least one of the following: a current voltage, a current current, a current temperature, and a current power. The method according to any one of claims 12-15, wherein the charging mode comprises: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current at a predetermined current The flow is charged until the voltage reaches a predetermined voltage, and then the constant voltage is charged with the predetermined voltage; or, the voltage is greater than the voltage of the full voltage of the battery; or the voltage is greater than the current voltage of the battery. A charger, comprising: a communication interface, a processor, and a charging interface; the processor is electrically connected to the communication interface and the charging interface, respectively; The communication interface is configured to connect to an electronic device, and receive battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery; The processor is configured to determine, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery; and determine an output pulse width modulation PWM charging signal according to the charging voltage and the charging current; The charging interface is configured to connect the electronic device, and output the PWM charging signal determined by the processor to a battery of the electronic device, where the PWM charging signal is used to use the charging voltage and the charging current The battery of the electronic device is directly charged. The charger according to claim 17, wherein the processor is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage; and determine the PWM charging signal according to the charging current Duty cycle. The charger according to claim 18, wherein the processor is configured to: determine a frequency of the PWM charging signal according to the charging voltage and a default frequency of a PWM charging signal, the default frequency and The default voltage of the charger corresponds. The charger of claim 19 wherein said frequency is proportional to said charging voltage. The charger according to claim 20, wherein said frequency is increased by a preset frequency value every time said charging voltage rises by a predetermined voltage value. The charger according to claim 18, wherein the processor is configured to: determine the PWM charge according to the charging current and a default duty ratio of a PWM charging signal. The duty cycle of the electrical signal, the default duty cycle corresponding to the default current of the charger. The charger of claim 22 wherein said duty cycle is proportional to said charging current. The charger according to claim 23, wherein said duty ratio is increased by a preset duty value every time said charging current rises by a preset current value. The charger according to any one of claims 17 to 24, wherein the charging mode comprises: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, first performing at a predetermined current The constant current is charged until the voltage reaches a predetermined voltage, and then the constant voltage is charged with the predetermined voltage; or, the voltage is greater than the voltage of the full voltage of the battery; or the voltage is greater than the current voltage of the battery. A charger according to any one of claims 17-25, wherein The communication interface is further configured to receive a current charging parameter of the battery sent by the electronic device; The processor is further configured to adjust a current charging voltage and/or a charging current required by the battery according to a current charging parameter of the battery and a charging mode of the battery; and according to the adjusted charging current and/or adjustment After the charging current, adjusting the PWM charging signal; The charging interface is further configured to output an adjusted PWM charging signal to a battery of the electronic device, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery charging of the electronic device. The charger according to claim 26, wherein the current charging parameter comprises at least one of the following: a current voltage, a current current, a current temperature, and a current power amount. The charger according to any one of claims 17-27, wherein the communication interface and the charging interface are integrated into the same interface. An electronic device, comprising: a communication interface, a charging interface, and a battery; wherein the battery is electrically connected to the communication interface and the charging interface, respectively; The communication interface is configured to connect a charger, and send battery attribute information of the electronic device to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery; The charging interface is configured to connect to the charger, and receive a pulse width modulation PWM charging signal output by the charger, where the PWM charging signal is used to directly contact a charging voltage and a charging current currently required by the battery. The battery is charged. The electronic device according to claim 29, wherein a frequency of said PWM charging signal corresponds to a charging voltage currently required by said battery; and/or The duty cycle of the PWM charging signal corresponds to the current charging current required by the battery. An electronic device according to claim 29 or 30, wherein The communication interface is further configured to send a current charging parameter of the battery to the charger, where the current charging parameter is used by the charger to adjust the PWM charging signal; The charging interface is further configured to receive an adjusted PWM charging signal output by the charger, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery of the electronic device is charged. The electronic device according to claim 31, wherein the current charging parameter comprises at least one of the following: a current voltage, a current current, a current temperature, and a current power. The electronic device according to any one of claims 29 to 32, wherein the charging mode comprises: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, first performing at a predetermined current The constant current is charged until the voltage reaches a predetermined voltage, and then the constant voltage is charged with the predetermined voltage; or, the voltage is greater than the voltage of the full voltage of the battery; or the voltage is greater than the current voltage of the battery. The electronic device according to any one of claims 29 to 33, wherein the communication interface and the charging interface are integrated into the same interface. A charging control system, comprising: the charger according to any one of claims 17-28, and the electronic device according to any one of claims 29-34; The charger is configured to charge a battery of the electronic device.

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