WO2023098347A1

WO2023098347A1 - Charging method, electronic device and computer-readable storage medium

Info

Publication number: WO2023098347A1
Application number: PCT/CN2022/127498
Authority: WO
Inventors: 刘玉桃; 袁兵; 崔瑞; 王晗
Original assignee: 华为技术有限公司
Priority date: 2021-12-02
Filing date: 2022-10-25
Publication date: 2023-06-08
Also published as: CN116231774A

Abstract

The present application is suitable for the technical field of terminals. Provided are a charging method, an electronic device and a computer-readable storage medium. In the method, when it is detected that an electronic device is in a charging state, the electronic device can acquire a first output current of a first charging chip, or acquire the first output current of the first charging chip and a second output current of a second charging chip, and can determine a first target frequency of the first charging chip according to the first output current or according to the first output current and the second output current. Then, the electronic device can adjust the frequency of the first charging chip according to the first target frequency, so as to adjust the first output current of the first charging chip, thereby ensuring that the output current of the charging chip meets requirements, and avoiding overcurrent of the charging chip, thus ensuring the safety of charging and improving the user experience.

Description

Charging method, electronic device, and computer-readable storage medium

This application is required to be submitted to the State Intellectual Property Office on December 2, 2021, the application number is 202111461496.9, and the application name is "a charging method, circuit and terminal equipment", and the national intellectual property right is required to be submitted on March 23, 2022 Office, the priority of the Chinese patent application with application number 202210294071.1 and application title "charging method, electronic device and computer-readable storage medium", the entire content of which is incorporated in this application by reference.

technical field

The present application belongs to the technical field of terminals, and in particular relates to a charging method, an electronic device, and a computer-readable storage medium.

Background technique

At present, people have higher requirements on the charging speed of electronic devices. In order to increase the charging speed, the number of charging chips (integrated circuit, IC) can be increased in the electronic equipment, so as to realize high-power fast charging through multiple charging ICs. However, in the current high-power fast charging based on multiple charging ICs, the output current of each charging IC is prone to unbalanced problems, resulting in a certain charging IC prone to overcurrent, reducing the safety of charging, resulting in poor user experience.

Contents of the invention

Embodiments of the present application provide a charging method, electronic equipment, and a computer-readable storage medium. During the charging process, the output current of the charging IC can be adjusted by adjusting the frequency of the charging IC, so as to realize electronic charging while ensuring charging safety. The fast charging function of the device improves the user experience.

In the first aspect, an embodiment of the present application provides a charging method, which is applied to an electronic device, and the electronic device includes at least a first charging chip and a second charging chip, and the method may include:

When it is detected that the electronic device is in the charging state, acquiring the first output current of the first charging chip, or acquiring the first output current of the first charging chip and the second output of the second charging chip current;

determining the first target frequency of the first charging chip according to the first output current, or determining the first target frequency of the first charging chip according to the first output current and the second output current;

The frequency of the first charging chip is adjusted according to the first target frequency.

In the above charging method, when it is detected that the electronic device is in the charging state, the electronic device may obtain the first output current of the first charging chip, or obtain the first output current of the first charging chip and the first output current of the second charging chip. Two output currents, and the first target frequency of the first charging chip can be determined according to the first output current, or according to the first output current and the second output current. Subsequently, the electronic device can adjust the frequency of the first charging chip according to the first target frequency, thereby adjusting the first output current of the first charging chip, so as to adjust the output current of the charging chip without adding an additional current sharing circuit , to ensure that the output current of the charging chip meets the requirements, and avoid overcurrent of the charging chip, thereby ensuring the safety of charging and improving user experience.

In an example, the determining the first target frequency of the first charging chip according to the first output current may include:

determining whether the first output current is greater than the maximum output current corresponding to the first charging chip;

When the first output current is greater than the corresponding maximum output current of the first charging chip, determine a first preset correspondence between the conversion efficiency of the first charging chip and the frequency according to the first output current;

A first target frequency of the first charging chip is determined according to the first preset correspondence relationship and the current frequency of the first charging chip.

In the charging method provided by this implementation, in order to avoid overcurrent of the first charging chip, the electronic device can obtain the maximum output current corresponding to the first charging chip, and determine whether the current first output current of the first charging chip exceeds the first The maximum output current corresponding to the charging chip. When the current first output current of the first charging chip exceeds the corresponding maximum output current of the first charging chip, the electronic device can determine the difference between the conversion efficiency of the first charging chip and the frequency according to the current first output current of the first charging chip. The first preset corresponding relationship. Subsequently, the electronic device may determine the first target frequency of the first charging chip according to the current frequency of the first charging chip and the determined first preset correspondence, and adjust the frequency of the first charging chip to the first target frequency, Adjust the conversion efficiency of the first charging chip by adjusting the frequency of the first charging chip, thereby adjusting the first output current of the first charging chip, so that the first output current of the first charging chip is smaller than the corresponding maximum output of the first charging chip current to avoid overcurrent in the first charging chip.

In another example, the determining the first target frequency of the first charging chip according to the first output current and the second output current may include:

obtaining a first current ratio between the first output current and the second output current;

A first target frequency of the first charging chip is determined according to the first current ratio and a first preset current ratio.

In the charging method provided in this implementation manner, a first preset current ratio that must be satisfied by the current ratio between the first output current and the second output current may be set in the electronic device. When the current first output current of the first charging chip and the current second output current of the second charging chip do not satisfy the first preset current ratio, the electronic device may determine the first current ratio according to the first current ratio and the first preset current ratio. The first target frequency of a charging chip to adjust the frequency of the first charging chip, thereby adjusting the conversion efficiency of the first charging chip, to adjust the first output current of the first charging chip, so as to avoid the first charging chip and the second charging When the chips are charging the same battery, the local input current of the battery is relatively large, causing the local heating of the battery to be serious, resulting in the interruption of charging of the electronic device, or making the first charging chip charge the first battery, and the second charging chip is the second charging chip. When the battery is being charged, the charging speed of the first battery and the charging speed of the second battery meet preset requirements (for example, the requirement that the first battery and the second battery be fully charged at the same time), thereby improving user experience.

In a possible implementation, the method may also include:

determining a second target frequency of the second charging chip according to the second output current, or determining a second target frequency of the second charging chip according to the first output current and the second output current;

The frequency of the second charging chip is adjusted according to the second target frequency.

In the charging method provided by this implementation, the electronic device can also determine the second target frequency of the second charging chip according to the second output current, or according to the first output current and the second output current, and adjust the frequency according to the second target frequency. The frequency of the second charging chip, so as to adjust the second output current of the second charging chip, so as to adjust the output current of the second charging chip without adding an additional current sharing circuit, so as to ensure the output current of the second charging chip Meet the requirements and avoid the overcurrent of the second charging chip, thereby ensuring the safety of charging and improving user experience.

Optionally, when it is detected that the electronic device is in the charging state, the electronic device may also separately obtain the second output current of the second charging chip, and directly determine the second target frequency of the second charging chip according to the second output current. Subsequently, the electronic device can adjust the frequency of the second charging chip according to the second target frequency, thereby adjusting the second output current of the second charging chip, ensuring that the output current of the second charging chip meets the requirements, and avoiding the overshooting of the second charging chip. flow, so as to ensure the safety of the second charging and improve the user experience.

In an example, the determining the second target frequency of the second charging chip according to the second output current may include:

determining whether the second output current is greater than the maximum output current corresponding to the second charging chip;

When the second output current is greater than the maximum output current corresponding to the second charging chip, determine a second preset correspondence between the conversion efficiency of the second charging chip and the frequency according to the second output current;

A second target frequency of the second charging chip is determined according to the second preset correspondence relationship and the current frequency of the second charging chip.

In the charging method provided by this implementation, in order to avoid overcurrent of the second charging chip, the electronic device can acquire the maximum output current corresponding to the second charging chip, and determine whether the current second output current of the second charging chip exceeds the second The maximum output current corresponding to the charging chip. When the current second output current of the second charging chip exceeds the corresponding maximum output current of the second charging chip, the electronic device can determine the difference between the conversion efficiency of the second charging chip and the frequency according to the current second output current of the second charging chip. The second preset corresponding relationship. Subsequently, the electronic device may determine the second target frequency of the second charging chip according to the current frequency of the second charging chip and the determined second preset correspondence, and adjust the frequency of the second charging chip to the second target frequency, Adjust the conversion efficiency of the second charging chip by adjusting the frequency of the second charging chip, thereby adjusting the second output current of the second charging chip, so that the second output current of the second charging chip is smaller than the corresponding maximum output of the second charging chip current to avoid overcurrent in the second charging chip.

It can be understood that the second preset correspondence relationship is the same as the first preset correspondence relationship, which is the correspondence relationship between the conversion efficiency of the charging chip and the frequency under each output current.

In another example, the determining the second target frequency of the second charging chip according to the first output current and the second output current may include:

A first target frequency of the first charging chip and a second target frequency of the second charging chip are determined according to the first current ratio and the first preset current ratio.

In the charging method provided in this implementation manner, a first preset current ratio that must be satisfied by the current ratio between the first output current and the second output current may be set in the electronic device. When the first current ratio between the current first output current of the first charging chip and the current second output current of the second charging chip does not satisfy the first preset current ratio, the electronic device may Preset the current ratio, and simultaneously determine the first target frequency of the first charging chip and the second target frequency of the second charging chip to simultaneously adjust the frequency of the first charging chip and the frequency of the second charging chip, thereby adjusting the frequency of the first charging chip The conversion efficiency of the second charging chip and the conversion efficiency of the second charging chip are used to adjust the first output current of the first charging chip and the second output current of the second charging chip, so that the first output current and the second output current meet the preset requirements and improve the user experience.

obtaining a second current ratio between the first output current and the second output current after adjusting the frequency of the first charging chip according to the first target frequency;

A second target frequency of the second charging chip is determined according to the second current ratio and the first preset current ratio.

In the charging method provided by this implementation, when the first current ratio between the current first output current of the first charging chip and the current second output current of the second charging chip does not meet the first preset current ratio, the electronic The device may first determine the first target frequency of the first charging chip according to the first current ratio and the first preset current ratio, and adjust the frequency of the first charging chip to adjust the first output current of the first charging chip. After adjusting the frequency of the first charging chip according to the first target frequency, the electronic device can continue to obtain the first output current of the first charging chip and the second output current of the second charging chip, if the first output current and the second output current The second current ratio between the two output currents still does not meet the first preset current ratio, and the electronic device can determine the second target frequency of the second charging chip according to the second current ratio and the first preset current ratio, to adjust the second current ratio. The frequency of the second charging chip is adjusted to adjust the second output current of the second charging chip, so that the first output current and the second output current meet preset requirements, thereby improving user experience.

In an example, when the first current ratio between the current first output current of the first charging chip and the current second output current of the second charging chip does not meet the first preset current ratio, the electronic device may first The first current ratio and the first preset current ratio determine the first target frequency of the first charging chip to adjust the frequency of the first charging chip. When the frequency of the first charging chip is adjusted so that the conversion efficiency of the first charging chip reaches an extreme value, if the second current ratio between the first output current and the second output current still does not satisfy the first preset current ratio, for example , when it is necessary to reduce the first charging chip, when adjusting the frequency of the first charging chip so that the conversion efficiency of the first charging chip reaches the minimum, if the second current ratio is still greater than the maximum value in the first preset current ratio, or , when it is necessary to improve the conversion efficiency of the first charging chip, when the frequency of the first charging chip is adjusted so that the conversion efficiency of the first charging chip reaches the maximum, if the second current ratio is still less than the minimum of the first preset current ratio value, the electronic device can continue to determine the second target frequency of the second charging chip according to the second current ratio and the first preset current ratio to adjust the frequency of the second charging chip, thereby adjusting the conversion efficiency of the second charging chip , to adjust the second output current of the second charging chip, so that the first output current and the second output current meet preset requirements, thereby improving user experience.

In an example, when the first current ratio between the current first output current of the first charging chip and the current second output current of the second charging chip does not meet the first preset current ratio, the electronic device may The current ratio and the first preset current ratio determine the second target frequency of the second charging chip to adjust the frequency of the second charging chip, thereby adjusting the conversion efficiency of the second charging chip to adjust the second output of the second charging chip current, so that the first output current and the second output current meet preset requirements, improving user experience.

In another example, when the first current ratio between the current first output current of the first charging chip and the current second output current of the second charging chip does not satisfy the first preset current ratio, the electronic device may also first According to the first current ratio and the first preset current ratio, the second target frequency of the second charging chip is determined to adjust the frequency of the second charging chip. When the frequency of the second charging chip is adjusted so that the conversion efficiency of the second charging chip reaches the extreme value, if the second current ratio between the first output current and the second output current still does not satisfy the first preset current ratio, the electronic The device can continue to determine the first target frequency of the first charging chip according to the second current ratio and the first preset current ratio to adjust the frequency of the first charging chip, thereby adjusting the conversion efficiency of the first charging chip to adjust The first output current of the first charging chip makes the first output current and the second output current meet preset requirements, thereby improving user experience.

In a possible implementation manner, when the electronic device includes a battery, the first charging chip and the second charging chip are used to charge the battery, and the method may further include:

Acquiring the first original impedance of the path where the first charging chip is located and the second original impedance of the path where the second charging chip is located;

The first preset current ratio is determined according to the first original impedance and the second original impedance.

In another possible implementation manner, when the electronic device includes at least a first battery and a second battery, the first charging chip is used to charge the first battery, and the second charging chip is used to charge the The second battery is charged.

Exemplarily, the method may also include:

Obtain the first original impedance of the path where the first charging chip is located, the second original impedance of the path where the second charging chip is located, the first rated capacity of the first battery, and the second rated capacity of the second battery ;

The first preset current ratio is determined according to the first original impedance, the second original impedance, the first rated capacity, and the second rated capacity.

In the charging method provided by this implementation, when the first charging chip is charging the first battery and the second charging chip is charging the second battery, the electronic device can Determine the first preset current ratio with the second rated capacity, so as to adjust the first output current of the first charging chip and/or adjust the second output current of the second charging chip according to the first preset current ratio, so that the first battery The charging speed of the battery and the charging speed of the second battery meet a preset requirement (for example, the requirement that the first battery and the second battery be fully charged at the same time).

obtaining a first input current of the first battery;

determining whether the first input current is greater than a maximum input current corresponding to the first battery;

When the first input current is greater than the corresponding maximum input current of the first battery, determine a first preset correspondence between the conversion efficiency of the first charging chip and the frequency according to the first output current;

In the charging method provided by this implementation, when the first charging chip is charging the first battery of the electronic device, the electronic device can acquire the current first input current, voltage and temperature of the first battery, and The voltage, temperature, and the third preset corresponding relationship determine the current maximum input current allowed by the first battery. Subsequently, the electronic device can determine the first target frequency of the first charging chip according to the current first input current of the first battery and the current maximum input current allowed by the first battery, so as to adjust the frequency of the first charging chip according to the first target frequency , to adjust the first output current of the first charging chip, thereby adjusting the input current of the first battery, avoiding an overcurrent of the first battery during the charging process, and avoiding damage to the first battery.

Wherein, the third preset corresponding relationship is the corresponding relationship between the allowed maximum input current and voltage of each battery at each temperature. The third preset correspondence relationship may be specifically set by a technician according to an actual scenario, which is not limited in this embodiment of the present application.

In one example, when the first charging chip and the second charging chip are charging the same battery, the electronic device can obtain the current input current, voltage and temperature of the battery, and calculate Corresponding relationship, determine the current maximum input current allowed by the battery. Subsequently, the electronic device can determine the first target frequency of the first charging chip and/or the second target frequency of the second charging chip according to the current input current of the battery and the current maximum input current allowed by the battery, so as to The frequency adjusts the frequency of the first charging chip to adjust the first output current of the first charging chip, and/or adjusts the frequency of the second charging chip according to the second target frequency to adjust the second output current of the second charging chip, thereby Regulate the input current of the battery to avoid overcurrent of the battery during charging and avoid damage to the battery.

Exemplarily, before the determination of whether the first input current is greater than the maximum input current corresponding to the first battery may include:

Obtain the current voltage and temperature of the first battery;

Determine the maximum input current corresponding to the first battery according to the current voltage and temperature of the first battery and a third preset correspondence relationship, the third preset correspondence relationship is that at each temperature, the first battery Correspondence between the maximum allowable input current and the voltage.

In another example, the determining the second target frequency of the second charging chip according to the second output current may include:

obtaining a second input current of the second battery;

determining whether the second input current is greater than a maximum input current corresponding to the second battery;

When the second input current is greater than the maximum input current corresponding to the second battery, determine a second preset correspondence between the conversion efficiency of the second charging chip and the frequency according to the second output current;

In the charging method provided by this implementation, when the second charging chip is charging the second battery of the electronic device, the electronic device can acquire the current second input current, voltage and temperature of the second battery, and The voltage, temperature, and the third preset corresponding relationship determine the current maximum input current allowed by the second battery. Subsequently, the electronic device can determine the second target frequency of the second charging chip according to the current second input current of the second battery and the current maximum input current allowed by the second battery, so as to adjust the frequency of the second charging chip according to the second target frequency , to adjust the second output current of the second charging chip, thereby adjusting the input current of the second battery, avoiding an overcurrent of the second battery during the charging process, and avoiding damage to the second battery.

In the second aspect, the embodiment of the present application provides a charging device, which is applied to an electronic device, and the electronic device includes at least a first charging chip and a second charging chip, and the device may include:

An output current acquisition module, configured to acquire the first output current of the first charging chip when it is detected that the electronic device is in the charging state, or acquire the first output current of the first charging chip and the first output current of the first charging chip. 2. The second output current of the charging chip;

A target frequency determining module, configured to determine the first target frequency of the first charging chip according to the first output current, or determine the first charging chip according to the first output current and the second output current the first target frequency of the chip;

A frequency adjustment module, configured to adjust the frequency of the first charging chip according to the first target frequency.

In an example, the target frequency determination module is specifically configured to determine whether the first output current is greater than the maximum output current corresponding to the first charging chip; when the first output current is greater than the maximum output current of the first charging chip When the corresponding maximum output current is reached, the first preset correspondence between the conversion efficiency of the first charging chip and the frequency is determined according to the first output current; according to the first preset correspondence and the first The current frequency of the charging chip determines the first target frequency of the first charging chip.

In another example, the target frequency determination module is further configured to obtain a first current ratio between the first output current and the second output current; according to the first current ratio and a first preset The current ratio determines the first target frequency of the first charging chip.

In a possible implementation manner, the target frequency determination module is further configured to determine the second target frequency of the second charging chip according to the second output current, or, according to the first output current and the The second output current is used to determine the second target frequency of the second charging chip;

The frequency adjustment module is further configured to adjust the frequency of the second charging chip according to the second target frequency.

In an example, the target frequency determination module is further used to determine whether the second output current is greater than the maximum output current corresponding to the second charging chip; when the second output current is greater than the second charging chip When the corresponding maximum output current is reached, the second preset correspondence between the conversion efficiency of the second charging chip and the frequency is determined according to the second output current; according to the second preset correspondence and the second The current frequency of the charging chip determines the second target frequency of the second charging chip.

In another example, the target frequency determination module is further configured to obtain a first current ratio between the first output current and the second output current; according to the first current ratio and a first preset The current ratio determines the first target frequency of the first charging chip and the second target frequency of the second charging chip.

In another example, the target frequency determining module is further configured to obtain the difference between the first output current and the second output current after adjusting the frequency of the first charging chip according to the first target frequency. A second current ratio between them; according to the second current ratio and the first preset current ratio, determine a second target frequency of the second charging chip.

In a possible implementation manner, when the electronic device includes a battery, the first charging chip and the second charging chip are used to charge the battery, and the device may further include:

A preset current ratio determination module, configured to obtain the first original impedance of the path where the first charging chip is located and the second original impedance of the path where the second charging chip is located; according to the first original impedance and the second The raw impedance determines the first preset current ratio.

Exemplarily, the preset current ratio determination module is further configured to obtain the first original impedance of the path where the first charging chip is located, the second original impedance of the path where the second charging chip is located, and the first original impedance of the path where the first battery is located. a rated capacity and the second rated capacity of the second battery; used to determine the first rated capacity according to the first original impedance, the second original impedance, the first rated capacity and the second rated capacity Preset current ratio.

In an example, the target frequency determining module is further configured to acquire a first input current of the first battery; determine whether the first input current is greater than a corresponding maximum input current of the first battery; when the When the first input current is greater than the corresponding maximum input current of the first battery, determine a first preset correspondence between the conversion efficiency of the first charging chip and the frequency according to the first output current; according to the first output current; A preset correspondence relationship and the current frequency of the first charging chip determine the first target frequency of the first charging chip.

Exemplarily, the device may also include:

A maximum input current determination module, configured to obtain the current voltage and temperature of the first battery; determine the maximum input current corresponding to the first battery according to the current voltage, temperature and a third preset correspondence of the first battery , the third preset correspondence is the correspondence between the maximum input current and the voltage allowed by the first battery at each temperature.

In another example, the target frequency determining module is further configured to acquire a second input current of the second battery; determine whether the second input current is greater than a corresponding maximum input current of the second battery; when the When the second input current is greater than the corresponding maximum input current of the second battery, determine a second preset correspondence between the conversion efficiency of the second charging chip and the frequency according to the second output current; The second preset correspondence relationship and the current frequency of the second charging chip determine the second target frequency of the second charging chip.

In a third aspect, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, , enabling the electronic device to implement the charging method described in any one of the above first aspects.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the computer can realize any of the above-mentioned first aspects. One of the charging methods.

In a fifth aspect, an embodiment of the present application provides a computer program product, which, when the computer program product is run on an electronic device, causes the electronic device to execute the charging method described in any one of the above first aspects.

It can be understood that, for the beneficial effects of the above-mentioned second aspect to the fifth aspect, reference can be made to the relevant description in the above-mentioned first aspect, which will not be repeated here.

Description of drawings

FIG. 1 is a schematic structural diagram of an electronic device to which a charging method provided by an embodiment of the present application is applicable;

Fig. 2 is a first schematic diagram of the setting of the charging chip provided by the embodiment of the present application;

Fig. 3 is a second schematic diagram of the setting of the charging chip provided by the embodiment of the present application;

Fig. 4 is a schematic diagram 1 of the relationship between the conversion efficiency of the charging IC and the frequency of the charging IC;

Fig. 5 is a schematic diagram 2 of the relationship between the conversion efficiency of the charging IC and the frequency of the charging IC;

Fig. 6 is a schematic flow chart of a charging method provided by an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a charging device provided by an embodiment of the present application.

Detailed ways

It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and/or components, but does not exclude one or more other Presence or addition of features, wholes, steps, operations, elements, components and/or collections thereof.

It should also be understood that the term "and/or" used in the description of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

As used in this specification and the appended claims, the term "if" may be construed, depending on the context, as "when" or "once" or "in response to determining" or "in response to detecting ". Similarly, the phrase "if determined" or "if [the described condition or event] is detected" may be construed, depending on the context, to mean "once determined" or "in response to the determination" or "once detected [the described condition or event] ]” or “in response to detection of [described condition or event]”.

In addition, in the description of the specification and the appended claims of the present application, the terms "first", "second", "third" and so on are only used to distinguish descriptions, and should not be understood as indicating or implying relative importance.

Reference to "one embodiment" or "some embodiments" or the like in the specification of the present application means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

In addition, the "plurality" mentioned in the embodiments of the present application should be interpreted as two or more.

The steps involved in the charging method provided in the embodiment of this application are only examples, not all steps are mandatory steps, or not all information or content in the message is mandatory, and can be used during use. Increase or decrease as necessary. In the embodiments of the present application, the same step or steps or messages with the same function can be used for reference between different embodiments.

The business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. With the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

At present, people have higher requirements on the charging speed of electronic devices. In order to increase the charging speed, the number of charging ICs can be increased in electronic equipment to achieve high-power fast charging through multiple charging ICs. For example, the charging current of the battery can be increased by connecting dual charging ICs in parallel, so as to realize high-power fast charging.

It should be understood that each charging IC generally has a maximum allowable output current. When the actual output current of a charging IC is greater than the maximum output current allowed by the charging IC, it will cause overcurrent in the charging IC, resulting in reduced charging safety, or triggering the charging IC to perform overcurrent protection (that is, for charging IC with over-current protection function), which will lead to charging interruption, affect the charging speed, and affect the user experience.

For example, during the use of electronic equipment, the input current of the charger generally remains unchanged. Therefore, when a certain charging IC causes changes in the current input to the charging IC due to impedance changes (such as increased impedance) and other reasons (such as changes When small), it will cause the current input to each charging IC to be unbalanced, that is, the current input to another charging IC will increase, resulting in an increase in the output current of the other charging IC, which may cause the other charging IC The output current of the IC is greater than the maximum output current allowed by the other charging IC, causing overcurrent in the other charging IC.

Among them, in order to avoid the overcurrent of the charging IC, generally, a current sharing circuit can be added to ensure that the impedances of the paths corresponding to the parallel charging ICs are roughly equal through the current sharing current, so that the current passing through each path is balanced, so that the charging IC The output current is balanced to avoid the overcurrent of the charging IC caused by the excessive current input to a certain charging IC. However, this method needs to add a current equalizing circuit in the parallel path of the charging IC, which greatly increases the complexity of the hardware circuit, increases the design cost of the electronic equipment, and is not convenient for popularization and use.

In order to solve the above problems, embodiments of the present application provide a charging method, an electronic device, and a computer-readable storage medium. Wherein, the electronic device may at least include a first charging chip and a second charging chip. In this method, when it is detected that the electronic device is in the charging state, the electronic device may obtain the first output current of the first charging chip, or obtain the first output current of the first charging chip and the second output current of the second charging chip, And the first target frequency of the first charging chip can be determined according to the first output current, or according to the first output current and the second output current. Subsequently, the electronic device can adjust the frequency of the first charging chip according to the first target frequency, thereby adjusting the first output current of the first charging chip, so as to adjust the output current of the charging chip without adding an additional current sharing circuit , to ensure that the output current of the charging chip meets the requirements, and avoid overcurrent of the charging chip, thereby ensuring the safety of charging, improving user experience, and having strong ease of use and practicability.

In the embodiment of the present application, the electronic device may be a mobile phone, a tablet computer, a wearable device, an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, a notebook computer, an ultra-mobile personal computer (ultra-mobile personal computer) computer, UMPC), netbook, personal digital assistant (personal digital assistant, PDA) and other electronic devices with rechargeable batteries, the embodiments of the present application do not impose any restrictions on the specific types of electronic devices.

The electronic device involved in the embodiment of the present application is firstly introduced below. Please refer to FIG. 1 , which shows a schematic structural diagram of an electronic device 100 .

The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, and an antenna 2 , a mobile communication module 150, and a wireless communication module 160.

It can be understood that, the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100 . In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

The controller can generate an operation control signal according to the instruction opcode and timing signal, and complete the control of fetching and executing the instruction.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in various encoding formats, for example: moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4 and so on.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transmitter (universal asynchronous receiver/transmitter, UART) interface, mobile industry processor interface (mobile industry processor interface, MIPI), general-purpose input and output (general-purpose input/output, GPIO) interface, subscriber identity module (subscriber identity module, SIM) interface, and /or universal serial bus (universal serial bus, USB) interface, etc.

The USB interface 130 is an interface conforming to the USB standard specification, specifically, it can be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 can be used to connect to a charger to charge the electronic device 100 , and can also be used to connect to other electronic devices, such as AR devices.

It can be understood that the interface connection relationship between the modules shown in the embodiment of the present application is only a schematic illustration, and does not constitute a structural limitation of the electronic device 100 . In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.

The charging management module 140 is configured to receive a charging input from a charger. Wherein, the charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 can receive the charging input of the wired charger through the USB interface 130 (such as a USB Type C interface). In some wireless charging embodiments, the charging management module 140 can receive wireless charging input through the wireless charging coil of the electronic device 100. While the charging management module 140 is charging the battery 142 , it can also supply power to the electronic device 100 through the power management module 141 .

In some embodiments, the charger may be a high power charger.

In some other embodiments, the charging management module 140 may include at least two charging chips 143 , for example, may include at least a first charging chip and a second charging chip. Exemplarily, both the first charging chip and the second charging chip may be frequency-adjustable charging chips.

Optionally, please refer to FIG. 2 . FIG. 2 shows the first schematic diagram of setting up the charging chip provided by the embodiment of the present application. As shown in (a) in FIG. 2 , at least two charging chips (the first charging chip and the second charging chip are taken as an example in FIG. 2 ) can be arranged in parallel in the electronic device 100, and the first charging chip and the second charging chip Each of the second charging chips can be connected to the battery 142 . The charging management module 140 can charge the battery 142 with high power through the first charging chip and the second charging chip, so as to realize the fast charging function. For example, the charging management module 140 can convert the charging input of the charger through the first charging chip and the second charging chip, that is, convert the input power of the charger to obtain a relatively large current to charge the battery 142 to achieve a large Power fast charge.

For example, as shown in (a) in Figure 2, when the input voltage of the charger is 20V, the input current is 6A, and the first charging chip is the same as the second charging chip, the current input to the first charging chip by the charger and The current input to the second charging chip is 3A, and the voltage input by the charger to the first charging chip and the voltage input to the second charging chip are both 20V. Assume, under ideal conditions (that is, the conversion efficiency of the first charging chip and the conversion efficiency of the second charging chip are both 100%), after conversion by the first charging chip, the output voltage of the first charging chip is 10V, and the first charging chip The output current of the charging chip is 6A. After conversion by the second charging chip, the output voltage of the second charging chip is 10V, and the output current of the second charging chip is 6A. That is, the original 6A input current of the charger can be converted into 12A, to quickly charge the battery 142 with a current of 12A.

In some embodiments, as shown in (b) in FIG. 2 , the charging management module 140 may also include an overvoltage protection unit, for example, the overvoltage protection unit may be an overvoltage protection circuit (over voltage protection, OVP), to When the voltage output by the charger is relatively high, the charging chip 143 and/or the battery 142 are protected. It should be understood that whether the voltage output by the charger is too large may be determined according to whether the voltage output by the charger is greater than a preset voltage value. Wherein, the preset voltage value can be specifically set by technicians according to actual scenarios, for example, it can be determined according to the maximum voltage allowed by the charging chip 143 , or it can be determined according to the rated voltage of the battery 142 , and so on.

In some embodiments, the charging management module 140 may include a chip control unit 144 (not shown in (b) of FIG. 2 ). Optionally, the chip control unit 144 may be connected to each charging chip 143 respectively. The chip control unit 144 can be used to adjust the frequency of one or more charging chips 143 .

As shown in (c) of FIG. 2 , when the charging management module 140 includes a first charging chip and a second charging chip, the chip control unit 144 may be connected to the first charging chip and the second charging chip, respectively. Therefore, the chip control unit 144 can adjust the frequency of the first charging chip according to the first target frequency, and/or can adjust the frequency of the second charging chip according to the second target frequency.

In some other embodiments, the chip control unit 144 may also be disposed in the processor 110 .

In some embodiments of the present application, the electronic device 100 may include 1 or N batteries 142 , where N is a positive integer greater than 1. Optionally, the parameters of the batteries 142 may be the same or different. Wherein, the parameters of the battery may include the rated capacity, rated voltage and the like of the battery.

In some embodiments, any one of the at least two charging chips 143 may be connected to one or more batteries 142 respectively, or any one of the at least two charging chips 143 may be connected to each battery 142 respectively. Wherein, each charging chip 143 can be used to charge the corresponding battery 142 respectively.

Please refer to FIG. 3 . FIG. 3 shows a second schematic diagram of the arrangement of the charging chip provided by the embodiment of the present application. As shown in (a) in Figure 3, when the charging management module 140 includes a first charging chip and a second charging chip, and the electronic device 100 includes a first battery and a second battery, the first charging chip can be directly connected to the first battery connection, the second charging chip can be directly connected to the second battery, so that the first charging chip can be used to charge the first battery, and the second charging chip can be used to charge the second battery, that is, through the first charging in parallel The chip and the second charging chip realize simultaneous charging of the first battery and the second battery, which can increase the charging speed of the electronic device 100 .

Or, as shown in (b) in Figure 3, both the first charging chip and the second charging chip can be connected to the first battery, and both the first charging chip and the second charging chip can also be connected to the second battery, but the first charging chip and the second charging chip can also be connected to the second battery. Impedance (such as the impedance 300 shown in (b) in Figure 3) is provided on the path that a charging chip is connected to the second battery, and impedance is provided on the path that the second charging chip is connected to the first battery (such as shown in Figure 3 (b) shows the impedance 300). Due to the existence of the impedance 300, the output current of the first charging chip directly flows into the first battery, while the output current of the second charging chip directly flows into the second battery, so that the first charging chip can be used to charge the first battery, and the second charging chip can be used to charge the first battery. The second charging chip can be used to charge the second battery.

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives the input of the battery 142 and/or the charging management module 140 to provide power for the processor 110 , the internal memory 121 , and the wireless communication module 160 . The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance).

In some other embodiments, the power management module 141 may also be disposed in the processor 110 . In some other embodiments, the power management module 141 and the charging management module 140 may also be set in the same device.

The wireless communication function of the electronic device 100 can be realized by the antenna 1 , the antenna 2 , the mobile communication module 150 , the wireless communication module 160 , a modem processor, a baseband processor, and the like.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 may be used to cover single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G applied on the electronic device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like. The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves and radiate them through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be set in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be set in the same device.

A modem processor may include a modulator and a demodulator. Wherein, the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator sends the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal is passed to the application processor after being processed by the baseband processor. In some embodiments, the modem processor may be a stand-alone device. In some other embodiments, the modem processor may be independent from the processor 110, and be set in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (Wireless Fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), global navigation satellite, etc. applied on the electronic device 100. System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the electronic device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC , FM, and/or IR techniques, etc. The GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a Beidou navigation satellite system (beidou navigation satellite system, BDS), a quasi-zenith satellite system (quasi -zenith satellite system (QZSS) and/or satellite based augmentation systems (SBAS).

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. Such as saving music, video and other files in the external memory card.

The internal memory 121 may be used to store computer-executable program codes including instructions. The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data created during the use of the electronic device 100 (such as audio data, phonebook, etc.) and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (universal flash storage, UFS) and the like. The processor 110 executes various functional applications and data processing of the electronic device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The software system of the electronic device 100 may adopt a layered architecture, an event-driven architecture, a micro-kernel architecture, a micro-service architecture, or a cloud architecture. For example, the software system of the electronic device 100 may adopt a layered architecture Android operating system (Operation System, OS), Harmony OS (Harmony OS), or IOS.

The charging method provided by the embodiment of the present application will be described in detail below with reference to the drawings and specific application scenarios. The method is applied to an electronic device including at least two charging ICs, such as a first charging chip (ie, a first charging IC) and a second charging chip (ie, a second charging IC). Wherein, both the first charging IC and the second charging IC may be frequency-adjustable charging ICs. The first charging IC and the second charging IC can be arranged in parallel in the electronic device, and both the first charging IC and the second charging IC can be connected to the battery in the electronic device.

In the embodiment of the present application, when it is detected that the electronic device is in the charging state, the electronic device can obtain the first output current of the first charging IC, or obtain the first output current of the first charging IC and the second output of the second charging IC current, and the first target frequency of the first charging IC can be determined according to the first output current, or according to the first output current and the second output current. Subsequently, the electronic device can adjust the frequency of the first charging IC according to the first target frequency, so as to adjust the first output current of the first charging IC, ensure that the output current of the charging IC meets the requirements, and avoid overcurrent of the charging IC, thereby ensuring The safety of charging improves the user experience.

In an example, the electronic device may determine whether the electronic device is in a charging state according to whether the USB interface of the electronic device receives a charging input from a wired charger. For example, when an electronic device is connected to a power supply device through a USB interface, the USB interface of the electronic device may receive a charging input from a wired charger, and at this time, the electronic device may determine that the electronic device is in a charging state.

In another example, the electronic device may determine whether the electronic device is in a charging state according to whether the wireless charging coil of the electronic device receives a wireless charging input. For example, when the electronic device is on the charging stand of the wireless power supply device, the wireless charging coil of the electronic device may receive a wireless charging input, and at this time, the electronic device may determine that the electronic device is in a charging state.

It should be noted that the first output current refers to the current at the output end of the first charging IC, and the second output current refers to the current at the output end of the second charging IC.

Exemplarily, the output terminal of the first charging IC may be provided with a current measuring device A, and the electronic device may obtain the first output current through the current measuring device A. Similarly, the output terminal of the second charging IC can be provided with a current measuring device B, and the electronic device can obtain the second output current through the current measuring device B. It should be understood that the embodiment of the present application does not impose any limitation on the current measuring device A and the current measuring device B, which can be specifically set according to actual scenarios, for example, both the current measuring device A and the current measuring device B can be set as ammeters.

It should be understood that the first charging IC and the second charging IC are used to convert the input power from the charger to increase the current input to the battery, thereby increasing the charging power of the battery and realizing high-power fast charging. Wherein, the conversion of any charging IC to input power satisfies: η*(V _input *I _input )=V _IC *I _IC , V _input is the input voltage of the charging IC, I _input is the input current of the charging IC, η is the conversion efficiency of the charging IC, V _IC is the output voltage of the charging IC, and I _IC is the output current of the charging IC.

As shown in (a) of Figure 2, when the first charging IC and the second charging IC are arranged in parallel, the sum of the input currents of the first charging IC and the second charging IC is the total current I _{output output} by the charger, and the first The input voltage of the first charging IC and the second charging IC are the same as the total voltage V _{output output} by the charger. That is, I _output =I _input1 +I _input2 , V _output =V _input1 =V _input2 , where I _input1 is the input current of the first charging IC, I _input2 is the input current of the second charging IC, and V _input1 is the first charging IC The input voltage of V _input2 is the input voltage of the second charging IC.

In a specific charging process, the total voltage V _output and the total current I _{output output} by the charger are both fixed values, that is, the input voltage V _input1 of the first charging IC and the input voltage V _input2 of the second charging IC are also fixed. value. The input current I _input1 of the first charging IC and the input current I _input2 of the second charging IC are related to the total current I _{output output} by the charger, the impedance of the path where the first charging IC is located, and the impedance of the path where the second charging IC is located. The impedance of the path where the first charging IC is located and the impedance of the path where the second charging IC is located are generally fixed values. Therefore, the input current I _input1 of the first charging IC and the input current I _input2 of the second charging IC are also fixed values. It should be understood that in this specific charging process, the output voltages of each charging IC are also fixed values.

In summary, for any charging IC (such as the first charging IC or the second charging IC), in a specific charging process, since the input voltage V _input and the input current I _input of the charging IC are both fixed values, and The output voltage of the charging IC is also a fixed value, therefore, the output current of the charging IC is related to the conversion efficiency η of the charging IC. That is, when the input voltage and input current of the charging IC are constant, if the conversion efficiency η of the charging IC is higher, the output current of the charging IC will be larger; if the conversion efficiency η of the charging IC is lower, the output current of the charging IC will also be lower. Small.

Wherein, the conversion efficiency η of the charging IC is related to the frequency of the charging IC, therefore, the electronic device can adjust the conversion efficiency η of the charging IC by adjusting the frequency of a certain charging IC, thereby adjusting the output current of the charging IC, so that the charging The output current of the IC meets the requirements to avoid overcurrent of the charging IC.

Next, the relationship between the conversion efficiency η of the charging IC and the frequency of the charging IC will be described. Wherein, the charging IC may include a first charging IC and a second charging IC.

Please refer to FIG. 4 . FIG. 4 shows the first schematic diagram of the relationship between the conversion efficiency of the charging IC and the frequency of the charging IC. 4 shows the conversion efficiency η of the charging IC at each output current when the frequency of the charging IC is high frequency (ie 750KHz), medium frequency (ie 375KHz) and low frequency (ie 187.5KHz). It should be understood that the output current in FIG. 4 refers to the desired output current of the charging IC.

As shown in Figure 4, when the output current of the charging IC is (0A, 4A), the higher the frequency of the charging IC, the lower the conversion efficiency of the charging IC. The conversion efficiency at the frequency, and the conversion efficiency of the charging IC at the medium frequency is lower than that of the charging IC at the low frequency. When the output current of the charging IC is [4A, 6A], the conversion efficiency of the charging IC at high frequency is lower than that of charging IC at low frequency, and the conversion efficiency of charging IC at low frequency is lower than that of charging IC at medium frequency conversion efficiency. When the output current of the charging IC is greater than 6A, the conversion efficiency of the charging IC at low frequency is lower than that of charging IC at high frequency, and the conversion efficiency of charging IC at high frequency is lower than that of charging IC at medium frequency.

Based on the relationship shown in FIG. 4 , the electronic device may be provided with a preset corresponding relationship A between the conversion efficiency of the charging IC and the frequency under each output current. When the current output current of a charging IC does not meet the requirements, the electronic device can adjust the frequency of the charging IC to adjust the conversion efficiency of the charging IC, thereby adjusting the output current of the charging IC so that the output current of the charging IC meets the requirements. Require. It should be understood that the preset correspondence relationship A may also be stored in other electronic devices communicatively connected with the electronic device or in devices such as a cloud.

It should be noted that the above division of the output current into three intervals (0A, 4A), [4A, 6A] and (6A, +∞) is only for exemplary explanation and should not be construed as a limitation to the embodiment of the present application. In the embodiment of the present application, the division mode of the output current may be determined by a technician according to the actual scene.

In addition, when the frequency of the above-mentioned charging IC is high frequency (ie 750KHz), medium frequency (ie 375KHz) and low frequency (ie 187.5KHz), at each output current, the conversion efficiency of the charging IC is related to the frequency The preset corresponding relationship A between them is only for exemplary explanation, and should not be understood as a limitation on the embodiment of the present application. In the embodiment of the present application, technicians can determine the frequencies of the charging IC according to the actual scene, for example, two, three or four frequencies can be determined according to the actual scene, and the output current can be obtained through testing. The conversion efficiency corresponding to each frequency of the charging IC, so as to determine the preset corresponding relationship A between the conversion efficiency of the charging IC and the frequency under each output current.

For example, technicians can determine each frequency of the charging IC according to the frequency that the charging IC actually supports adjustment, and obtain the conversion efficiency corresponding to each frequency of the charging IC under each output current through testing, so as to determine the charging IC under each output current. The preset correspondence relationship A between the conversion efficiency and the frequency.

For example, technicians can determine the frequency of the charging IC as high frequency (ie 750KHz), medium-high frequency (ie 500KHz), medium frequency (ie 375KHz), medium-low frequency (ie 300KHz) and low frequency (ie 187.5KHz) according to the actual scene. ), and determine the conversion efficiency corresponding to each frequency (ie high frequency, medium-high frequency, medium frequency, medium-low frequency, and low frequency) of the charging IC under each output current, so that the conversion efficiency of the charging IC can be determined under each output current Preset correspondence A between efficiency and frequency.

For example, please refer to FIG. 5 . FIG. 5 shows a second schematic diagram of the relationship between the conversion efficiency of the charging IC and the frequency of the charging IC.

As shown in Figure 5, when the output current of the charging IC is (0A, 3A), the higher the frequency of the charging IC, the lower the conversion efficiency of the charging IC. The conversion efficiency at medium and high frequencies, the conversion efficiency of the charging IC at medium and high frequencies is less than that of the charging IC at medium frequencies, the conversion efficiency of the charging IC at medium frequencies is less than that of the charging IC at low and medium frequencies, and the charging IC is The conversion efficiency at medium and low frequencies is less than that of the charging IC at low frequencies.

When the output current of the charging IC is [3A, 4A], the conversion efficiency of the charging IC at a high frequency is lower than that of the charging IC at a medium-high frequency, and the conversion efficiency of the charging IC at a medium-high frequency is lower than that of a charging IC at a medium frequency The conversion efficiency of the charging IC is lower than the conversion efficiency of the charging IC at the low frequency when the charging IC is at the middle frequency, and the conversion efficiency of the charging IC at the low frequency is lower than the conversion efficiency of the charging IC at the middle and low frequency.

When the output current of the charging IC is (4, 4.5], the conversion efficiency of the charging IC at high frequency is lower than that of the charging IC at medium-high frequency, and the conversion efficiency of charging IC at medium-high frequency is lower than that of charging IC at low frequency The conversion efficiency of the charging IC is lower when the charging IC is at a low frequency than when the charging IC is at a medium frequency.

When the output current of the charging IC is (4.5, 6], the conversion efficiency of the charging IC at high frequency is lower than that of charging IC at low frequency, and the conversion efficiency of charging IC at low frequency is lower than that of charging IC at medium and high frequency The conversion efficiency of the charging IC is lower than the conversion efficiency of the charging IC when the charging IC is at the middle frequency, and the conversion efficiency of the charging IC is lower than the conversion efficiency of the charging IC when the charging IC is at the middle and low frequency.

When the output current of the charging IC is greater than 6A, the conversion efficiency of the charging IC at low frequency is lower than that of the charging IC at high frequency, and the conversion efficiency of the charging IC at high frequency is lower than that of the charging IC at low-medium frequency , the conversion efficiency of the charging IC at medium and low frequencies is lower than that of the charging IC at medium frequencies, and the conversion efficiency of the charging IC at medium frequencies is lower than that of the charging IC at medium and high frequencies.

Therefore, based on the relationship shown in Figure 5, the electronic device can determine the conversion efficiency corresponding to each frequency of the charging IC (ie, high frequency, medium-high frequency, medium frequency, medium-low frequency, and low frequency) under each output current, so that Determine the preset correspondence relationship A between the conversion efficiency of the charging IC and the frequency under each output current.

It should be noted that when the frequency of the first charging IC is adjusted, the impedance of the path where the first charging IC is located will change, resulting in changes in the current input to the first charging IC and the current input to the second charging IC, Both the first output current of the first charging IC and the second output current of the second charging IC will change. For example, when adjusting the frequency of the first charging IC to reduce the conversion efficiency of the first charging IC, the impedance of the path where the first charging IC is located will increase, so that the current input to the first charging IC will become smaller, so that the second The first output current of a charging IC becomes smaller, and at the same time, the current input to the second charging IC becomes larger, so that the second output current of the second charging IC becomes larger. Therefore, in order to avoid the adjustment of the frequency of the first charging IC, causing the second output current of the second charging IC to be greater than the corresponding maximum output current of the second charging IC, when determining the adjustable frequency of the first charging IC, the electronic device can The adjustable frequency of the first charging IC is determined in combination with the corresponding maximum output current of the second charging IC, so that when the conversion efficiency of the first charging IC is adjusted to the minimum, the second output current of the second charging IC is still smaller than the second The maximum output current corresponding to the charging IC. Similarly, when determining the adjustable frequency of the second charging IC, the electronic device can determine the adjustable frequency of the second charging IC in combination with the corresponding maximum output current of the first charging IC.

In the following, when the frequency of the charging IC is high frequency (ie 750KHz), medium frequency (ie 375KHz) and low frequency (ie 187.5KHz), the preset correspondence between the conversion efficiency of the charging IC and the frequency under each output current Taking relationship A as an example, the process of determining the first target frequency of the first charging IC and/or determining the second target frequency of the second charging IC by the electronic device according to the first output current and/or the second output current is described in detail.

It can be understood that any charging IC generally has a corresponding maximum output current, so as to determine whether the charging IC is over-current through the maximum output current.

In a possible implementation, in order to avoid overcurrent of the first charging IC, the electronic device can obtain the maximum output current corresponding to the first charging IC, and can determine whether the current first output current of the first charging IC exceeds the first The maximum output current corresponding to the charging IC. When the current first output current of the first charging IC exceeds the corresponding maximum output current of the first charging IC, the electronic device can determine the difference between the conversion efficiency of the first charging IC and the frequency according to the current first output current of the first charging IC. The first preset corresponding relationship (that is, the preset corresponding relationship A corresponding to the first output current). Subsequently, the electronic device determines the first target frequency of the first charging IC according to the current frequency of the first charging IC and the determined first preset correspondence, and adjusts the frequency of the first charging IC to the first target frequency, so as to Adjust the conversion efficiency of the first charging IC by adjusting the frequency of the first charging IC, thereby adjusting the first output current of the first charging IC, so that the first output current of the first charging IC is smaller than the corresponding maximum output of the first charging IC current to avoid overcurrent in the first charging IC.

For example, when the current first output current of the first charging IC is 3A, and the corresponding maximum output current of the first charging IC is 2A, that is, the current first output current of the first charging IC exceeds the corresponding maximum output current of the first charging IC , indicating that the current conversion efficiency of the first charging IC is relatively high, that is, the conversion efficiency of the first charging IC needs to be reduced. Since the current first output current of the first charging IC is 3A, which is located in the interval of (0A, 4A), the electronic device can be based on the first value between the frequency of the charging IC and the conversion efficiency when the output current is (0A, 4A). A preset corresponding relationship (that is, the higher the frequency of the charging IC, the lower the conversion efficiency of the charging IC) and the current frequency of the first charging IC to determine the first target frequency of the first charging IC, and the first charging IC The frequency of the first charging IC is adjusted to the first target frequency to reduce the conversion efficiency of the first charging IC, thereby reducing the first output current of the first charging IC.

Assuming that the current frequency of the first charging IC is the middle frequency (ie 375KHz), from the first preset correspondence determined above (that is, the higher the frequency of the charging IC, the lower the conversion efficiency of the charging IC), it can be seen that if the first charging IC is to be reduced The conversion efficiency of a charging IC needs to increase the frequency of the first charging IC. Therefore, the electronic device can determine the first target frequency as a high frequency according to the current frequency (ie, the middle frequency) of the first charging IC, that is, the electronic device can convert the first target frequency to a high frequency. The frequency of a charging IC is adjusted from the current 375KHz to 750KHz, so as to reduce the conversion efficiency of the first charging IC by increasing the frequency of the first charging IC, thereby reducing the first output current of the first charging IC.

Similarly, in order to avoid overcurrent of the second charging IC, the electronic device can obtain the maximum output current corresponding to the second charging IC, and can determine whether the current second output current of the second charging IC exceeds the maximum output current corresponding to the second charging IC current. When the current second output current of the second charging IC exceeds the corresponding maximum output current of the second charging IC, the electronic device can determine the difference between the conversion efficiency of the second charging IC and the frequency according to the current second output current of the second charging IC. The second preset correspondence relationship (that is, the preset correspondence relationship A corresponding to the second output current). Subsequently, the electronic device may determine the second target frequency of the second charging IC according to the current frequency of the second charging IC and the determined second preset correspondence, and adjust the frequency of the second charging IC to the second target frequency, To adjust the conversion efficiency of the second charging IC, so as to adjust the second output current of the second charging IC, so that the second output current of the second charging IC is smaller than the corresponding maximum output current of the second charging IC, so as to avoid the occurrence of overshooting of the second charging IC flow.

For example, when the current second output current of the second charging IC is 5A, and the corresponding maximum output current of the second charging IC is 4.5A, that is, the current output current of the second charging IC exceeds the corresponding maximum output current of the second charging IC, It indicates that the current conversion efficiency of the second charging IC is relatively high, that is, the conversion efficiency of the second charging IC needs to be reduced. Since the current output current of the second charging IC is 5A, which is located in the interval [4A, 6A], the electronic device can use the second preset value between the frequency of the charging IC and the conversion efficiency when the output current is [4A, 6A]. Assuming the corresponding relationship and the current frequency of the second charging IC, the second target frequency of the second charging IC is determined.

Assume that the current frequency of the second charging IC is a medium frequency (ie 375KHz), and from the second preset correspondence determined above (that is, the conversion efficiency of the charging IC at a high frequency is lower than that of the charging IC at a low frequency, the charging The conversion efficiency of the IC at low frequency is less than the conversion efficiency of the charging IC at medium frequency) It can be seen that if the conversion efficiency of the second charging IC is to be reduced, the frequency of the second charging IC needs to be adjusted to a low frequency (ie 187.5KHz) , or the frequency of the second charging IC needs to be adjusted to a high frequency (ie 750KHz), therefore, the electronic device can determine that the second target frequency is a high frequency or a low frequency, that is, the electronic device can change the frequency of the second charging IC from the current 375KHz Adjust to 750KHz, or adjust from the current 375KHz to 187.5KHz to reduce the conversion efficiency of the second charging IC, thereby reducing the second output current of the second charging IC.

It should be noted that the above determination of the first target frequency of the first charging IC according to the corresponding maximum output current of the first charging IC is only an exemplary explanation, and should not be construed as a limitation to the embodiment of the present application. In some embodiments, the electronic device may also determine the first target frequency of the first charging IC according to the current limit corresponding to the first charging IC.

Wherein, the limited current corresponding to the first charging IC can be determined according to the current charging state of the battery corresponding to the first charging IC (ie, the battery used for charging by the first charging IC). For example, when the battery corresponding to the first charging IC is currently in a constant current charging state, the current limit corresponding to the first charging IC can be relatively large; when the battery corresponding to the first charging IC is currently in a constant voltage charging state, the first charging IC The corresponding limiting current can be smaller.

Similarly, the electronic device can also determine the second target frequency of the second charging IC according to the current limit corresponding to the second charging IC.

It should be understood that when the electronic device further includes a third charging IC, the electronic device may acquire a third output current of the third charging IC, and determine whether the third output current is greater than a corresponding maximum output current of the third charging IC. When the third output current is greater than the maximum output current corresponding to the third charging IC, the electronic device can determine the preset correspondence relationship A between the conversion efficiency of the third charging IC and the frequency according to the third output current, and charge The current frequency of the IC and the determined preset correspondence relationship A determine a third target frequency of the third charging IC, so as to adjust the frequency of the third charging IC to the third target frequency.

In another possible implementation, as shown in FIG. 2, when the electronic device includes only one battery, the electronic device can charge the battery through a first charging IC and a second charging IC arranged in parallel, that is, the first Both the first output current of the charging IC and the second output current of the second charging IC can be input to the battery, so as to quickly charge the battery through a large current. Wherein, since the first output current of the first charging IC and the second output current of the second charging IC are input to the battery from different ports, if the difference between the first output current and the second output current is large, the As a result, during the charging process, the local heating of the battery is serious, which may lead to interruption of charging and affect the user experience.

Therefore, in order to avoid the large local input current of the battery, which will cause severe local heating of the battery and cause the electronic device to be cut off, etc., the electronic device can be provided with a current ratio between the first output current and the second output current that needs to be satisfied. A first preset current ratio to adjust the frequency of the first charging IC and/or adjust the frequency of the second charging IC according to the first preset current ratio, thereby adjusting the conversion efficiency of the first charging IC and/or adjusting the second charging IC The conversion efficiency of the IC is used to adjust the first output current of the first charging IC and/or adjust the second output current of the second charging IC.

It should be noted that the first preset current ratio may also be stored in other electronic devices or cloud devices that are communicatively connected with the electronic devices. The first preset current ratio may be a range of ratios, and the first preset current ratio may be specifically determined by technicians according to actual scenarios, which is not specifically limited in this embodiment of the present application. Exemplarily, technicians can determine the first preset current ratio according to the original impedance of the path where the first charging IC is located and the original impedance of the path where the second charging IC is located when the electronic device is shipped from the factory.

For example, initially, if the original impedance of the path where the first charging IC is located is the same as the original impedance of the path where the second charging IC is located, it means that the first output current of the first charging IC and the second output current of the second charging IC should be roughly the same , at this time, the first preset current ratio can be set to [0.9, 1.1].

It should be understood that when the electronic device further includes a third charging IC, the first preset current ratio may be the first output current of the first charging IC, the second output current of the second charging IC, and the third output current of the third charging IC. The ratio interval that needs to be satisfied between the three currents. The electronic device can adjust the frequency of the first charging IC, the frequency of the second charging IC and the frequency of the second charging IC according to the current ratio of the first output current, the second output current and the third output current, and the first preset current ratio. One or more of the three charging IC frequencies. The following will take the electronic device including the first charging IC and the second charging IC as an example for illustration.

Exemplarily, when the current ratio between the first output current of the first charging IC and the second output current of the second charging IC does not satisfy the first preset current ratio, for example, when the first output current and the second output current When the current ratio between the currents is greater than the maximum value in the first preset current ratio, or when the current ratio between the first output current and the second output current is smaller than the minimum value in the first preset current ratio, the electronic device The first target frequency of the first charging IC can be determined according to the first output current, the second output current and the first preset current ratio, and/or the second target frequency of the second charging IC can be determined, and according to the first target frequency adjusting the frequency of the first charging IC, and/or adjusting the frequency of the second charging IC according to the second target frequency, so as to adjust the first output current of the first charging IC, and/or adjust the second output current of the second charging IC, Therefore, the current ratio between the first output current and the second output current satisfies the first preset current ratio.

In an example, when the current ratio between the first output current and the second output current is greater than the maximum value in the first preset current ratio, the electronic device may determine that the current first output current of the first charging IC is relatively large, At this time, the electronic device can adjust the frequency of the first charging IC according to the first output current, that is, determine the first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and according to the determined The first preset correspondence relationship and the current frequency of the first charging IC determine the first target frequency of the first charging IC to adjust the frequency of the first charging IC to the first target frequency to reduce the conversion efficiency of the first charging IC , thereby reducing the first output current of the first charging IC, so that the current ratio between the first output current and the second output current satisfies the first preset current ratio.

Optionally, when the frequency of the first charging IC is adjusted so that the conversion efficiency of the first charging IC is reduced to a minimum, if the current ratio between the first output current and the second output current still does not meet the first preset current ratio For example, if the current ratio between the first output current and the second output current is still greater than the maximum value in the first preset current ratio, the electronic device may determine that the current second output current of the second charging IC is relatively small, and at this time The electronic device can adjust the frequency of the second charging IC according to the current second output current of the second charging IC, that is, the second preset correspondence between the conversion efficiency of the second charging IC and the frequency can be determined according to the second output current, And according to the determined second preset correspondence relationship and the current frequency of the second charging IC, determine the second target frequency corresponding to the second charging IC, so as to adjust the frequency of the second charging IC to the second target frequency to increase the second charging IC frequency. The conversion efficiency of the second charging IC, thereby increasing the second output current of the second charging IC, so that the current ratio between the first output current and the second output current satisfies the first preset current ratio.

For example, when the first preset current ratio is [0.9, 1.1], initially, the current ratio between the first output current of the first charging IC and the second output current of the second charging IC generally satisfies the first preset current ratio. Due to the impedance change of the path where the first charging IC is located or the impedance change of the path where the second charging IC is located, the current input by the charger to the first charging IC and/or the second charging IC changes, so that the current of the first charging IC The first output current of the second charging IC and/or the current second output current of the second charging IC change. Assume that the current first output current of the first charging IC is 3A, and the current second output current of the second charging IC is 2A, that is, when the current ratio between the first output current and the second output current is 1.5:1 , the electronic device may determine that the current first output current of the first charging IC is relatively large.

At this time, the electronic device can adjust the frequency of the first charging IC according to the first output current (that is, 3A). A preset corresponding relationship (that is, the higher the frequency of the charging IC, the lower the conversion efficiency of the charging IC) and the current frequency of the first charging IC, determine the first target frequency of the first charging IC, and the first charging IC's The frequency is adjusted to the first target frequency to reduce the conversion efficiency of the first charging IC, so as to reduce the first output current of the first charging IC, so that the current ratio between the first output current and the second output current can satisfy the first The preset current ratio means that the current ratio between the first output current and the second output current can be located at [0.9, 1.1].

Wherein, when the frequency of the first charging IC is adjusted to a high frequency (ie 750KHz), the conversion efficiency of the first charging IC will be reduced to the minimum. At this time, if the current ratio between the first output current and the second output current is still greater than 1.1. For example, when the current ratio between the first output current and the second output current is 1.2:1, the electronic device can determine that the current second output current of the second charging IC is relatively small. At this time, the electronic device can Two output currents (that is, 2A) adjust the frequency of the second charging IC to improve the conversion efficiency of the second charging IC, so as to increase the second output current of the second charging IC, so that the difference between the first output current and the second output current The current ratio of is located in [0.9, 1.1].

Optionally, when the current ratio between the first output current and the second output current is greater than the maximum value in the first preset current ratio, the frequency of the first charging IC is adjusted according to the first target frequency, so that the first charging When the conversion efficiency of the IC decreases, if the current ratio between the first output current and the second output current still does not meet the first preset current ratio, for example, it is still greater than the maximum value in the first preset current ratio, the electronic device may Determine the second target frequency of the second charging IC directly according to the current ratio between the adjusted first output current and the second output current and the first preset current ratio, so as to adjust the second target frequency of the second charging IC according to the second target frequency Frequency, thereby increasing the conversion efficiency of the second charging IC, increasing the second output current of the second charging IC, so that the current ratio between the first output current and the second output current satisfies the first preset current ratio.

That is to say, the electronic device can first adjust the frequency of the first charging IC sequentially according to the current ratio between the first output current and the second output current and the first preset current ratio to adjust the first output current and the second output current. Current ratio between currents. When the frequency of the first charging IC is adjusted so that the conversion efficiency of the first charging IC reaches an extreme value, if the current ratio between the first output current and the second output current still does not satisfy the first preset current ratio, the electronic device may Then, the frequency of the second charging IC is adjusted according to the current ratio between the first output current and the second output current. Alternatively, the electronic device can adjust the frequency of the first charging IC according to the current ratio between the first output current and the second output current and the first preset current ratio to adjust the current ratio between the first output current and the second output current. current ratio. After adjusting the frequency of the first charging IC this time, if the current ratio between the first output current and the second output current still does not meet the first preset current ratio, the electronic device can then adjust the frequency according to the first output current and the second output current. The current ratio between the currents adjusts the frequency of the second charging IC. After adjusting the frequency of the second charging IC this time, if the current ratio between the first output current and the second output current still does not meet the first preset current ratio, the electronic device can then adjust the frequency according to the first output current and the second output current. The current ratio between the currents adjusts the frequency of the first charging IC, and it is cyclically adjusted accordingly. It should be understood that the subsequent process of adjusting the frequency of the second charging IC and adjusting the frequency of the first charging IC is similar.

Exemplarily, when the current ratio between the first output current and the second output current is greater than the maximum value in the first preset current ratio, the electronic device may determine that the current second output current of the second charging IC is relatively small, which means , the electronic device can determine the second preset correspondence between the conversion efficiency of the second charging IC and the frequency according to the second output current, and determine the second preset correspondence according to the second preset correspondence and the current frequency of the second charging IC. The second target frequency of the charging IC is to adjust the frequency of the second charging IC to the second target frequency to improve the conversion efficiency of the second charging IC, thereby increasing the second output current of the second charging IC, so that the first output current The current ratio to the second output current satisfies the first preset current ratio.

Similarly, when the frequency of the second charging IC is adjusted according to the second target frequency, so that the conversion efficiency of the second charging IC is improved, if the current ratio between the first output current and the second output current still does not satisfy the first preset Current ratio, the electronic device can directly determine the first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and determine according to the first preset correspondence and the current frequency of the first charging IC The first target frequency of the first charging IC, to adjust the frequency of the first charging IC to the first target frequency, to reduce the conversion efficiency of the first charging IC, thereby reducing the first output current of the first charging IC, so that the first A current ratio between the output current and the second output current satisfies a first preset current ratio.

Or, when adjusting the frequency of the second charging IC so that the conversion efficiency of the second charging IC is increased to the maximum, if the current ratio between the first output current and the second output current still does not satisfy the first preset current ratio, the electronic The device may determine a first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and determine the first preset correspondence between the first charging IC and the current frequency of the first charging IC. The first target frequency is to adjust the frequency of the first charging IC to the first target frequency to reduce the conversion efficiency of the first charging IC, thereby reducing the first output current of the first charging IC, so that the first output current and the second The current ratio between the output currents satisfies a first preset current ratio.

It should be noted that, when the current ratio between the first output current and the second output current is greater than the maximum value in the first preset current ratio, the electronic device may determine that the current first output current of the first charging IC is relatively large, The current second output current of the second charging IC is relatively small. At this time, the electronic device can determine the first preset corresponding relationship between the conversion efficiency of the first charging IC and the frequency according to the first output current, and according to the first preset Corresponding relationship and the current frequency of the first charging IC, determine the first target frequency of the first charging IC, to adjust the frequency of the first charging IC to the first target frequency, to reduce the conversion efficiency of the first charging IC, thereby reducing the first The first output current of a charging IC. At the same time, the electronic device can determine the second preset correspondence between the conversion efficiency of the second charging IC and the frequency according to the second output current, and determine the second preset correspondence according to the second preset correspondence and the current frequency of the second charging IC. The second target frequency of the charging IC is to adjust the frequency of the second charging IC to the second target frequency to improve the conversion efficiency of the second charging IC, thereby increasing the second output current of the second charging IC, so that the first output current The current ratio to the second output current satisfies the first preset current ratio.

In another example, when the current ratio between the first output current and the second output current is smaller than the minimum value of the first preset current ratio, the electronic device may determine that the current first output current of the first charging IC is smaller , at this time, the electronic device can adjust the frequency of the first charging IC according to the first output current, that is, determine the first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and according to the determined Adjust the frequency of the first charging IC to improve the conversion efficiency of the first charging IC, so as to increase the first output current of the first charging IC, so that the first output A current ratio between the current and the second output current satisfies a first preset current ratio.

Optionally, when adjusting the frequency of the first charging IC so that the conversion efficiency of the first charging IC is increased to the maximum, if the current ratio between the first output current and the second output current still does not meet the first preset current ratio For example, if the current ratio between the first output current and the second output current is still smaller than the minimum value in the first preset current ratio, the electronic device may determine that the current second output current of the second charging IC is relatively large. At this time, The electronic device can adjust the frequency of the second charging IC according to the second output current of the second charging IC to reduce the conversion efficiency of the second charging IC, so as to reduce the second output current of the second charging IC, so that the first output current and The current ratio between the second output currents satisfies the first preset current ratio.

For example, when the first preset current ratio is [0.9, 1.1], if the current first output current of the first charging IC is 4A, the current second output current of the second charging IC is 5A, that is, the first output current and The current ratio between the second output currents is 0.8:1, the electronic device can determine that the current first output current of the first charging IC is relatively small, at this time, the electronic device can adjust the first charging according to the first output current (ie 4A) The frequency of the IC, that is, the electronic device can be based on the first preset correspondence between the frequency of the charging IC and the conversion efficiency when the output current is [4A, 6A] (that is, the conversion efficiency of the charging IC at a high frequency is less than that of the charging IC at a The conversion efficiency at low frequency, the conversion efficiency when the charging IC is at a low frequency is less than the conversion efficiency when the charging IC is at a medium frequency) and the current frequency of the first charging IC, determine the first target frequency of the first charging IC, and can be The frequency of the first charging IC is adjusted to the first target frequency to increase the conversion efficiency of the first charging IC to increase the first output current of the first charging IC, so that the current between the first output current and the second output current The ratio lies in [0.9, 1.1].

Wherein, when the frequency of the first charging IC is adjusted to the medium frequency (ie 375KHz), the conversion efficiency of the first charging IC will be increased to the maximum, at this time, if the current ratio between the first output current and the second output current Still less than 0.9, for example, when the current ratio between the first output current and the second output current is 0.85:1, the electronic device can determine that the current second output current of the second charging IC is relatively large, at this time, the electronic device can according to The second output current adjusts the frequency of the second charging IC to reduce the conversion efficiency of the second charging IC to reduce the second output current of the second charging IC, so that the current ratio between the first output current and the second output current lies in [0.9, 1.1].

Optionally, when the current ratio between the first output current and the second output current is less than the minimum value of the first preset current ratio, the frequency of the first charging IC is adjusted according to the first target frequency, so that the first charging When the conversion efficiency of the IC is improved, if the current ratio between the first output current and the second output current still does not satisfy the first preset current ratio, for example, is still smaller than the minimum value of the first preset current ratio, the electronic device can According to the adjusted current ratio between the first output current and the second output current and the first preset current ratio, determine the second target frequency of the second charging IC to adjust the frequency of the second charging IC according to the second target frequency , thereby reducing the conversion efficiency of the second charging IC, reducing the second output current of the second charging IC, so that the current ratio between the first output current and the second output current satisfies the first preset current ratio.

Exemplarily, when the current ratio between the first output current and the second output current is smaller than the minimum value of the first preset current ratio, the electronic device may determine that the current second output current of the second charging IC is relatively large, which means , the electronic device can determine the second preset correspondence between the conversion efficiency of the second charging IC and the frequency according to the second output current, and determine the second preset correspondence according to the second preset correspondence and the current frequency of the second charging IC. The second target frequency of the charging IC, to adjust the frequency of the second charging IC to the second target frequency, to reduce the conversion efficiency of the second charging IC, thereby reducing the second output current of the second charging IC, so that the first output current The current ratio to the second output current satisfies the first preset current ratio.

Similarly, when the frequency of the second charging IC is adjusted according to the second target frequency, so that the conversion efficiency of the second charging IC decreases, if the current ratio between the first output current and the second output current still does not satisfy the first preset Current ratio, the electronic device can determine the first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and determine the first preset correspondence according to the first preset correspondence and the current frequency of the first charging IC. The first target frequency of a charging IC is to adjust the frequency of the first charging IC to the first target frequency to improve the conversion efficiency of the first charging IC, thereby increasing the first output current of the first charging IC, so that the first output A current ratio between the current and the second output current satisfies a first preset current ratio.

Or, when the frequency of the second charging IC is adjusted so that the conversion efficiency of the second charging IC is reduced to a minimum, if the current ratio between the first output current and the second output current still does not satisfy the first preset current ratio, the electronic The device may determine a first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and determine the first preset correspondence between the first charging IC and the current frequency of the first charging IC. The first target frequency is to adjust the frequency of the first charging IC to the first target frequency to improve the conversion efficiency of the first charging IC, thereby increasing the first output current of the first charging IC, so that the first output current and the second The current ratio between the output currents satisfies a first preset current ratio.

It should be noted that, when the current ratio between the first output current and the second output current is smaller than the minimum value of the first preset current ratio, the electronic device may determine that the current first output current of the first charging IC is relatively small, The current second output current of the second charging IC is relatively large. At this time, the electronic device can determine the first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and determine the first preset corresponding relationship between the conversion efficiency and the frequency of the first charging IC according to the first output current The first preset correspondence between the conversion efficiency and frequency of the first charging IC and the current frequency of the first charging IC adjust the frequency of the first charging IC to improve the conversion efficiency of the first charging IC and increase the first output of the first charging IC current. At the same time, the electronic device can determine the second preset correspondence between the conversion efficiency of the second charging IC and the frequency according to the second output current, and determine the second preset correspondence between the conversion efficiency of the second charging IC and the frequency according to the second preset correspondence between the conversion efficiency of the second charging IC and the frequency. and the current frequency of the second charging IC, determine the second target frequency of the second charging IC, to adjust the frequency of the second charging IC to the second target frequency, to reduce the conversion efficiency of the second charging IC, thereby reducing the second charging The second output current of the IC, so that the current ratio between the first output current and the second output current satisfies the first preset current ratio.

Exemplarily, adjusting the frequency of the first charging IC and/or adjusting the frequency of the second charging IC according to the current ratio between the first output current and the second output current and the first preset current ratio, so as to adjust the first charging When adjusting the first output current of the IC and/or adjusting the second output current of the second charging IC, the electronic device can adjust the second charging IC in combination with the maximum output current corresponding to the first charging IC and/or the maximum output current corresponding to the second charging IC. The first output current of a charging IC and/or the second output current of a second charging IC, so that the current ratio between the first output current and the second output current satisfies the first preset current ratio, while the first charging The adjusted first output current of the IC is less than or equal to the corresponding maximum output current of the first charging IC, and the adjusted second output current of the second charging IC is less than or equal to the corresponding maximum output current of the second charging IC.

That is to say, the frequency of the first charging IC is adjusted according to the current ratio between the first output current and the second output current and the first preset current ratio, so that the conversion efficiency of the first charging IC is improved, so that the first charging When the first output current of the IC increases, the electronic device can determine the first target frequency of the first charging IC in combination with the corresponding maximum output current of the first charging IC, so as to ensure that the adjusted first output current of the first charging IC is less than Or on the basis of being equal to the maximum output current corresponding to the first charging IC, the conversion efficiency of the first charging IC is improved, and the first output current of the first charging IC is increased.

For example, the electronic device can determine the maximum conversion efficiency that the first charging IC can achieve in the current adjustment according to the maximum output current corresponding to the first charging IC, and determine one or more voltages that the first charging IC can adjust according to the maximum conversion efficiency. candidate frequency. Therefore, when the electronic device determines the first target frequency of the first charging IC according to the current ratio between the first output current and the second output current and the first preset current ratio, it can determine from the one or more candidate frequencies Out of the first target frequency of the first charging IC.

Similarly, the frequency of the second charging IC is adjusted according to the current ratio between the first output current and the second output current and the first preset current ratio, so that the conversion efficiency of the second charging IC is improved, so that the second charging IC When the second output current of the second charging IC increases, the electronic device can determine the second target frequency of the second charging IC in combination with the corresponding maximum output current of the second charging IC, so as to ensure that the adjusted second output current of the second charging IC is less than or On the basis of being equal to the maximum output current corresponding to the second charging IC, the conversion efficiency of the second charging IC is improved, and the second output current of the second charging IC is increased.

In another possible implementation, as shown in FIG. 3, when the electronic device includes at least two batteries, for example, when the electronic device includes a first battery and a second battery, the electronic device can charge the second battery through the first charging IC. A battery is charged, and the second battery can be charged through the second charging IC. That is, the first output current of the first charging IC can be input into the first battery to charge the first battery, and the second output current of the second charging IC can be input into the second battery to charge the second battery. At this time, in order to make the charging speed of the first battery and the charging speed of the second battery meet the preset requirements (such as the requirement that the first battery and the second battery be fully charged at the same time, the first battery and the second battery are used to meet the requirements of being fully charged at the same time) The requirement is taken as an example for illustration), and the current ratio between the first output current of the first charging IC and the second output current of the second charging IC can be set to meet a second preset current ratio.

It should be noted that, similar to the first preset current ratio, the second preset current ratio can also be a range of ratios, and the second preset current ratio can also be specifically determined by technicians according to actual scenarios. There is no specific limitation on this. Exemplarily, the technician can base on the original impedance of the path where the first charging IC is located and the original impedance of the path where the second charging IC is located, as well as the rated capacity of the first battery and the rated capacity of the second battery when the electronic device leaves the factory. capacity to determine the second preset current ratio. It should be understood that the rated capacity of the first battery and the rated capacity of the second battery may be determined according to specific conditions of the battery, which is not limited in this embodiment of the present application.

For example, when the rated capacity of the first battery is the same as that of the second battery, and initially, the original impedance of the path where the first charging IC is located is the same as the original impedance of the path where the second charging IC is located, if the first battery and the The second battery is fully charged at the same time, then the first output current of the first charging IC and the second output current of the second charging IC should be approximately the same, at this time, the second preset current ratio can be set to [0.9, 1.1].

For example, when the rated capacity of the first battery and the rated capacity of the second battery are 2:1, and initially, the original impedance of the path where the first charging IC is located is the same as the original impedance of the path where the second charging IC is located, if the second When the first battery and the second battery are fully charged at the same time, the first output current of the first charging IC and the second output current of the second charging IC should be 2:1. At this time, the second preset current ratio can be set to [2.1, 0.9].

Therefore, the electronic device can adjust the frequency of the first charging IC and/or adjust the frequency of the second charging IC according to the first output current of the first charging IC, the second output current of the second charging IC, and the second preset current ratio. Frequency, thereby adjusting the conversion efficiency of the first charging IC, and/or adjusting the conversion efficiency of the second charging IC, thereby adjusting the first output current of the first charging IC and/or adjusting the second output current of the second charging IC, The first output current of the first charging IC and the second output current of the second charging IC satisfy a second preset current ratio.

It should be understood that adjusting the frequency of the first charging IC and/or adjusting the frequency of the second charging IC by the electronic device according to the second preset current ratio is the same as adjusting the frequency of the first charging IC and/or adjusting the frequency of the first charging IC by the electronic device according to the first preset current ratio. The principle of adjusting the frequency of the second charging IC is basically the same, and the specific content can refer to the content of adjusting the frequency of the first charging IC according to the first preset current ratio and/or adjusting the frequency of the second charging IC, which will not be repeated here.

It should be noted that, when the electronic device further includes a third charging IC and a third battery, the electronic device can charge the third battery through the third charging IC. At this time, similar to the aforementioned first preset current ratio, the second preset current ratio can be the first output current of the first charging IC, the second output current of the second charging IC, and the third output current of the third charging IC. The ratio interval that needs to be satisfied between the three currents. The electronic device can adjust the frequency of the first charging IC, the frequency of the second charging IC and the frequency of the second charging IC according to the current ratio of the first output current, the second output current and the third output current, and the second preset current ratio. One or more of the three charging IC frequencies.

In another possible implementation, the electronic device can obtain the current input current, voltage and temperature of the battery, and can determine the current maximum input current allowed by the battery according to the current voltage, temperature and the third preset correspondence relationship of the battery . Subsequently, the electronic device can adjust the frequency of the first charging IC and/or adjust the frequency of the second charging IC according to the current input current of the battery and the current maximum input current of the battery to adjust the first output of the first charging IC current and/or adjust the second output current of the second charging IC, thereby adjusting the input current of the battery, so as to avoid overcurrent of the battery during the charging process and avoid damage to the battery.

It should be noted that the third preset correspondence is the correspondence between the maximum input current and the voltage allowed by each battery at each temperature. Wherein, the third preset relationship may be stored in the electronic device, or in other electronic devices or the cloud that is communicatively connected with the electronic device. The electronic equipment can measure the current voltage of the battery through the voltage measuring device. It should be understood that the third preset correspondence relationship and the voltage measuring device may be specifically set by a technician according to an actual scenario, and this embodiment of the present application does not impose any limitation on this.

In one example, when the electronic device includes only one battery, that is, when both the first output current of the first charging IC and the second output current of the second charging IC are input to the battery, each input terminal of the battery may A current measuring device C is provided respectively, through which the electronic device can acquire the current input current of the battery. Similar to the aforementioned current measuring device A and current measuring device B, the current measuring device C may be specifically set according to actual scenarios, which is not limited in this embodiment of the present application.

When the current input current of the battery is greater than the current maximum input current of the battery, the electronic device can determine the first charging IC's first charging current according to the current first output current of the first charging IC and the current frequency of the first charging IC. Target frequency, and adjust the frequency of the first charging IC to the first target frequency to reduce the conversion efficiency of the first charging IC, reduce the first output current of the first charging IC, and reduce the current input to the battery by the first charging IC, Thereby reducing the input current of the battery.

Alternatively, the electronic device may determine the second target frequency of the second charging IC according to the current second output current of the second charging IC and the current frequency of the second charging IC, and adjust the frequency of the second charging IC to the second target frequency. Frequency, to reduce the conversion efficiency of the second charging IC, reduce the second output current of the second charging IC, reduce the current input to the battery by the second charging IC, thereby reducing the input current of the battery.

In another example, when the electronic device includes at least a first battery and a second battery, that is, when the first output current of the first charging IC is input to the first battery, the second output current of the second charging IC is input to the second battery , a current measuring device D may be provided at the input terminal of the first battery, and a current measuring device E may be provided at the input terminal of the second battery. The electronic device can obtain the first input current of the first battery through the current measuring device D, and/or can obtain the second input current of the second battery through the current measuring device E.

Exemplarily, when the first input current of the first battery is greater than the current maximum input current allowed by the first battery, the electronic device may determine the second current according to the current first output current of the first charging IC and the current frequency of the first charging IC. The first target frequency of a charging IC, and adjust the frequency of the first charging IC to the first target frequency to reduce the conversion efficiency of the first charging IC, reduce the first output current of the first charging IC, thereby reducing the first battery of the first input current.

Exemplarily, when the second input current of the second battery is greater than the current maximum input current allowed by the second battery, the electronic device may determine the second current according to the current second output current of the second charging IC and the current frequency of the second charging IC. The second target frequency of the second charging IC, and adjust the frequency of the second charging IC to the second target frequency to reduce the conversion efficiency of the second charging IC, reduce the second output current of the second charging IC, thereby reducing the second battery The second input current.

Optionally, when adjusting the frequency of the first charging IC according to the first input current of the first battery to adjust the first output current of the first charging IC, the electronic device may combine the corresponding maximum output current of the first charging IC and/or Or the second preset current ratio to adjust the frequency of the first charging IC so that the adjusted first output current of the first charging IC is less than or equal to the corresponding maximum output current of the first charging IC, and/or make the first charging IC A current ratio between the adjusted first output current of the IC and the second output current of the second charging IC satisfies a second preset current ratio.

Similarly, when adjusting the frequency of the second charging IC according to the second input current of the second battery to adjust the second output current of the second charging IC, the electronic device may combine the corresponding maximum output current of the second charging IC and/or The second preset current ratio is used to adjust the second output current of the second charging IC, so that the adjusted second output current of the second charging IC is less than or equal to the corresponding maximum output current of the second charging IC, and/or make the second charging IC A current ratio between the first output current of a charging IC and the adjusted second output current of the second charging IC satisfies a second preset current ratio.

It should be understood that when the electronic device further includes a third battery, the electronic device may obtain a third input current of the third battery, and determine whether the third input current is greater than a corresponding maximum input current of the third battery. When the third input current is greater than the current maximum input current allowed by the third battery, the electronic device can determine the third target frequency of the third charging IC according to the current third output current of the third charging IC and the current frequency of the third charging IC , and adjust the frequency of the third charging IC to the third target frequency to reduce the conversion efficiency of the third charging IC, reduce the second output current of the third charging IC, and thereby reduce the third input current of the third battery.

Based on the above-mentioned embodiments, the charging method provided in the embodiments of the present application is described below as an example. The content of the foregoing embodiments may be applicable to this embodiment. Please refer to FIG. 6 , which shows a schematic flowchart of a charging method provided by an embodiment of the present application. The method can be applied to an electronic device including at least a first charging chip and a second charging chip. As shown in Figure 6, the method may include:

S601. When detecting that the electronic device is in a charging state, the electronic device acquires a first output current of a first charging chip, or acquires a first output current of the first charging chip and a second output current of a second charging chip.

Wherein, for a specific manner of determining whether the electronic device is in the charging state, reference may be made to the foregoing specific description on determining whether the electronic device is in the charging state, which will not be repeated here.

For example, the electronic device may determine whether the electronic device is in a charging state according to whether the USB interface of the electronic device receives a charging input from a wired charger.

For example, the electronic device may determine whether the electronic device is in a charging state according to whether the wireless charging coil of the electronic device receives a wireless charging input.

It should be understood that the first output current refers to the current at the output terminal of the first charging chip (ie, the first charging IC), and the second output current refers to the current at the output terminal of the second charging chip (ie, the second charging IC). Wherein, the way of obtaining the first output current and the second output current can refer to the foregoing description, which will not be repeated here.

S602. The electronic device determines the first target frequency of the first charging chip according to the first output current, or determines the first target frequency of the first charging chip according to the first output current and the second output current.

In an example, the electronic device may determine whether the first output current of the first charging IC is greater than the corresponding maximum output current of the first charging IC. When the first output current is greater than the corresponding maximum output current of the first charging IC, the electronic device can determine the first preset correspondence between the conversion efficiency of the first charging IC and the frequency according to the first output current, and according to the determined The first preset correspondence relationship and the current frequency of the first charging IC determine the first target frequency of the first charging IC to adjust the frequency of the first charging IC to the first target frequency, thereby reducing the conversion efficiency of the first charging IC , reducing the first output current of the first charging IC.

In another example, the electronic device can also determine the second target frequency of the second charging IC according to the second output current, or according to the first output current and the second output current, and adjust the second target frequency of the second charging IC according to the second target frequency. frequency. Exemplarily, the electronic device may determine whether the second output current of the second charging IC is greater than the corresponding maximum output current of the second charging IC. When the second output current is greater than the maximum output current corresponding to the second charging IC, the electronic device can determine according to the second output current, the second preset correspondence between the conversion efficiency of the second charging IC and the frequency, and can according to the The determined second preset correspondence relationship and the current frequency of the second charging IC determine the second target frequency of the second charging IC to adjust the frequency of the second charging IC to the second target frequency, thereby reducing the frequency of the second charging IC conversion efficiency, reducing the second output current of the second charging IC.

Wherein, the electronic device determines the first preset corresponding relationship between the conversion efficiency of the first charging IC and the frequency according to the first output current, and reference may be made to the foregoing specific description, which will not be repeated here. For example, the electronic device may determine the first preset corresponding relationship between the conversion efficiency of the first charging IC and the frequency under the first output current according to the relationship shown in FIG. 4 . Similarly, the electronic device determines the second preset corresponding relationship between the conversion efficiency of the second charging IC and the frequency according to the second output current. Reference may also be made to the aforementioned specific description, which will not be repeated here.

In another example, when the electronic device includes only one battery, the electronic device may be based on the current ratio between the first output current of the first charging IC and the second output current of the second charging IC and the first preset current ratio , to determine the first target frequency of the first charging IC, and/or determine the second target frequency of the second charging IC. When the electronic device includes at least two batteries, the electronic device can determine the first current ratio according to the current ratio between the first output current of the first charging IC and the second output current of the second charging IC and the second preset current ratio. a first target frequency for the charging IC, and/or determine a second target frequency for the second charging IC.

Wherein, the first preset current ratio and the second preset current ratio are ratio relationships satisfied by the current ratios between the first output current of the first charging IC and the second output current of the second charging IC respectively. It should be understood that, the manner of determining the first preset current ratio and the second preset current ratio may refer to the foregoing determination manner of the first preset current ratio and the second preset current ratio, which will not be repeated here. For example, the first preset current ratio may be determined according to the original impedance of the path where the first charging IC is located and the original impedance of the path where the second charging IC is located. For example, the second preset current ratio can be determined according to the original impedance of the path where the first charging IC is located and the original impedance of the path where the second charging IC is located, as well as the rated capacity of the first charging IC and the rated capacity of the second charging IC.

It should be understood that the electronic device determines the first target frequency of the first charging IC according to the current ratio between the first output current of the first charging IC and the second output current of the second charging IC and the first preset current ratio, And/or for the specific content of determining the second target frequency of the second charging IC, reference may be made to the foregoing description, which will not be repeated here. Similarly, the electronic device determines the first target frequency of the first charging IC according to the current ratio between the first output current of the first charging IC and the second output current of the second charging IC and the second preset current ratio, And/or for the specific content of determining the second target frequency of the second charging IC, reference may be made to the foregoing description, which will not be repeated here.

In a possible implementation, the frequency and/or frequency of the first charging IC is adjusted according to the current ratio between the first output current and the second output current and the first preset current ratio (or the second preset current ratio). Or adjust the frequency of the second charging IC to adjust the first output current of the first charging IC and/or adjust the second output current of the second charging IC, the electronic device can combine the corresponding maximum output current of the first charging IC and/or Or the corresponding maximum output current of the second charging IC to adjust the first output current of the first charging IC and/or the second output current of the second charging IC so that the current between the first output current and the second output current While the ratio satisfies the first preset current ratio (or the second preset current ratio), the adjusted first output current of the first charging IC is less than or equal to the corresponding maximum output current of the first charging IC, and the second charging IC adjusts The final second output current is less than or equal to the corresponding maximum output current of the second charging IC. Wherein, for the specific combination manner, reference may be made to the description of the foregoing related content, and details are not repeated here.

Wherein, for the specific content of the third preset correspondence relationship, reference may be made to the above-mentioned specific description about the third preset correspondence relationship, which will not be repeated here. In addition, according to the current voltage and temperature of the battery and the third preset corresponding relationship, the specific content of adjusting the frequency of the first charging IC and/or adjusting the frequency of the second charging IC can also refer to the above-mentioned adjustment according to the third preset corresponding relationship. The specific description of adjusting the frequency of the first charging IC and/or adjusting the frequency of the second charging IC will not be repeated here.

For example, when the electronic device includes only one battery, if the current input current of the battery is greater than the current maximum input current allowed by the battery, the electronic device can use the current first output current of the first charging IC and the current frequency of the first charging IC , determine the first target frequency of the first charging IC, and adjust the frequency of the first charging IC to the first target frequency to reduce the conversion efficiency of the first charging IC, reduce the first output current of the first charging IC, and reduce the first A charging IC inputs the current of the battery, thereby reducing the input current of the battery.

For example, when the electronic device includes at least a first battery and a second battery, that is, when the first output current of the first charging IC is input to the first battery, and the second output current of the second charging IC is input to the second battery, if the second When the first input current of a battery is greater than the current maximum input current allowed by the first battery, the electronic device can determine the first current of the first charging IC according to the current first output current of the first charging IC and the current frequency of the first charging IC. Target frequency, and adjust the frequency of the first charging IC to the first target frequency to reduce the conversion efficiency of the first charging IC, reduce the first output current of the first charging IC, thereby reducing the first input current of the first battery.

If the second input current of the second battery is greater than the current maximum input current of the second battery, the electronic device can determine the second charging IC according to the current second output current of the second charging IC and the current frequency of the second charging IC. The second target frequency, and adjust the frequency of the second charging IC to the second target frequency to reduce the conversion efficiency of the second charging IC, reduce the second output current of the second charging IC, thereby reducing the second battery's second Input Current.

S603. The electronic device adjusts the frequency of the first charging chip according to the first target frequency.

In an example, the electronic device can also adjust the frequency of the second charging chip according to the second target frequency. Wherein, the electronic device adjusts the frequency of the first charging IC according to the first target frequency, and/or adjusts the frequency of the second charging IC according to the second target frequency. The specific description of adjusting the frequency of the second charging IC will not be repeated here.

In the embodiment of the present application, when it is detected that the electronic device is in the charging state, the electronic device can obtain the first output current of the first charging chip, or obtain the first output current of the first charging chip and the second output current of the second charging chip current, and the first target frequency of the first charging chip can be determined according to the first output current, or according to the first output current and the second output current. Subsequently, the electronic device can adjust the frequency of the first charging chip according to the first target frequency, thereby adjusting the first output current of the first charging chip, so as to adjust the output current of the charging chip without adding an additional current sharing circuit , to ensure that the output current of the charging chip meets the requirements, and avoid overcurrent of a certain charging chip, thereby ensuring the safety of charging and improving user experience.

It should be understood that the sequence numbers of the steps in the above embodiments do not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

Corresponding to the charging method described in the above embodiments, the embodiment of the present application further provides a charging device, and each module of the device can correspond to each step of the charging method.

Based on the above embodiments, please refer to FIG. 7 , which shows a schematic structural diagram of a charging device provided by an embodiment of the present application. The contents of the foregoing embodiments are all applicable to this embodiment, and details are not described here. The device can be applied to electronic equipment including at least a first charging chip and a second charging chip. As shown in Figure 7, the device may include:

An output current acquisition module 701, configured to acquire the first output current of the first charging chip, or acquire the first output current of the first charging chip and the second output current of the second charging chip when the electronic device is detected to be in the charging state .

Wherein, the specific way for the output current acquisition module 701 to determine whether the electronic device is in the charging state can refer to the above-mentioned specific description about determining whether the electronic device is in the charging state, and the way for the output current acquisition module 701 to obtain the first output current or the second output current is also Reference can be made to the foregoing detailed description about obtaining the output current of the first charging IC and/or the second charging IC, and details will not be repeated here.

The target frequency determination module 702 is configured to determine the first target frequency of the first charging chip according to the first output current, or determine the first target frequency of the first charging chip according to the first output current and the second output current.

In one example, the target frequency determining module 702 is further configured to determine the second target frequency of the second charging chip according to the second output current, or determine the second target frequency of the second charging chip according to the first output current and the second output current. target frequency.

Wherein, for specific content of determining the first target frequency and/or determining the second target frequency, reference may be made to the foregoing specific description about determining the first target frequency and/or determining the second target frequency, and details are not repeated here.

A frequency adjustment module 703, configured to adjust the frequency of the first charging chip according to the first target frequency.

In one example, the frequency adjustment module 703 is further configured to adjust the frequency of the second charging chip according to the second target frequency.

Wherein, the frequency adjustment module 703 adjusts the frequency of the first charging IC according to the first target frequency, and/or adjusts the frequency of the second charging IC according to the second target frequency. The specific description of/or adjusting the frequency of the second charging IC will not be repeated here.

In one example, the target frequency determination module 702 can also be used to obtain the current input current, voltage and temperature of the battery, and determine the current maximum input current allowed by the battery according to the current battery voltage, temperature and the third preset corresponding relationship ; Determine the first target frequency of the first charging IC, and/or determine the second target frequency of the second charging IC according to the current input current of the battery and the current maximum input current allowed by the battery.

It should be noted that the information interaction and execution process between the above-mentioned devices/units are based on the same concept as the method embodiment of the present application, and its specific functions and technical effects can be found in the method embodiment section. I won't repeat them here.

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used for illustration. In practical applications, the above-mentioned functions can be assigned to different functional units, Completion of modules means that the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit, and the above-mentioned integrated units may adopt hardware It can also be implemented in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above system, reference may be made to the corresponding processes in the aforementioned method embodiments, and details will not be repeated here.

An embodiment of the present application also provides an electronic device, where the electronic device includes at least one memory, at least one processor, and a computer program stored in the at least one memory and operable on the at least one processor. When the processor executes the computer program, the electronic device is enabled to implement the steps in any of the foregoing method embodiments. Exemplarily, the structure of the electronic device may be as shown in FIG. 1 .

The embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the computer implements the steps in any of the above method embodiments .

An embodiment of the present application provides a computer program product, which enables the electronic device to implement the steps in any of the foregoing method embodiments when the computer program product is run on the electronic device.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments in the present application can be completed by instructing related hardware through computer programs, and the computer programs can be stored in a computer-readable storage medium. The computer program When executed by a processor, the steps in the above-mentioned various method embodiments can be realized. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer-readable storage medium may at least include: any entity or device capable of carrying computer program codes to the device/electronic device, recording medium, computer memory, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), electrical carrier signals, telecommunication signals, and software distribution media. Such as U disk, mobile hard disk, magnetic disk or optical disk, etc. In some jurisdictions, computer readable storage media may not be electrical carrier signals and telecommunication signals based on legislation and patent practice.

In the above-mentioned embodiments, the descriptions of each embodiment have their own emphases, and for parts that are not detailed or recorded in a certain embodiment, refer to the relevant descriptions of other embodiments.

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

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

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

The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still implement the foregoing embodiments Modifications to the technical solutions described in the examples, or equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the application, and should be included in the Within the protection scope of this application.

Claims

A charging method, characterized in that it is applied to an electronic device, and the electronic device includes at least a first charging chip and a second charging chip, and the method includes:

When it is detected that the electronic device is in the charging state, acquiring the first output current of the first charging chip, or acquiring the first output current of the first charging chip and the second output of the second charging chip current;

determining the first target frequency of the first charging chip according to the first output current, or determining the first target frequency of the first charging chip according to the first output current and the second output current;

The frequency of the first charging chip is adjusted according to the first target frequency.
The method according to claim 1, wherein the determining the first target frequency of the first charging chip according to the first output current comprises:

determining whether the first output current is greater than the maximum output current corresponding to the first charging chip;

When the first output current is greater than the maximum output current corresponding to the first charging chip, determine a first preset correspondence between the conversion efficiency of the first charging chip and the frequency according to the first output current;

A first target frequency of the first charging chip is determined according to the first preset correspondence relationship and the current frequency of the first charging chip.
The method according to claim 1 or 2, wherein the determining the first target frequency of the first charging chip according to the first output current and the second output current comprises:

obtaining a first current ratio between the first output current and the second output current;

A first target frequency of the first charging chip is determined according to the first current ratio and a first preset current ratio.
The method according to any one of claims 1 to 3, wherein the method further comprises:

determining a second target frequency of the second charging chip according to the second output current, or determining a second target frequency of the second charging chip according to the first output current and the second output current;

The frequency of the second charging chip is adjusted according to the second target frequency.
The method according to claim 4, wherein the determining the second target frequency of the second charging chip according to the second output current comprises:

determining whether the second output current is greater than the maximum output current corresponding to the second charging chip;

When the second output current is greater than the maximum output current corresponding to the second charging chip, determine a second preset correspondence between the conversion efficiency of the second charging chip and the frequency according to the second output current;

A second target frequency of the second charging chip is determined according to the second preset correspondence relationship and the current frequency of the second charging chip.
The method according to claim 4, wherein the determining the second target frequency of the second charging chip according to the first output current and the second output current comprises:

obtaining a first current ratio between the first output current and the second output current;

A first target frequency of the first charging chip and a second target frequency of the second charging chip are determined according to the first current ratio and the first preset current ratio.
The method according to claim 4, wherein the determining the second target frequency of the second charging chip according to the first output current and the second output current comprises:

obtaining a second current ratio between the first output current and the second output current after adjusting the frequency of the first charging chip according to the first target frequency;

A second target frequency of the second charging chip is determined according to the second current ratio and the first preset current ratio.
The method according to claim 6 or 7, wherein when the electronic device includes a battery, the first charging chip and the second charging chip are used to charge the battery, and the method further includes :

Acquiring the first original impedance of the path where the first charging chip is located and the second original impedance of the path where the second charging chip is located;

The first preset current ratio is determined according to the first original impedance and the second original impedance.
The method according to claim 6 or 7, wherein when the electronic device includes at least a first battery and a second battery, the first charging chip is used to charge the first battery, and the second The charging chip is used for charging the second battery.
The method according to claim 9, characterized in that the method further comprises:

Obtain the first original impedance of the path where the first charging chip is located, the second original impedance of the path where the second charging chip is located, the first rated capacity of the first battery, and the second rated capacity of the second battery ;

The first preset current ratio is determined according to the first original impedance, the second original impedance, the first rated capacity, and the second rated capacity.
The method according to claim 9 or 10, wherein the determining the first target frequency of the first charging chip according to the first output current comprises:

obtaining a first input current of the first battery;

determining whether the first input current is greater than a maximum input current corresponding to the first battery;

When the first input current is greater than the corresponding maximum input current of the first battery, determine a first preset correspondence between the conversion efficiency of the first charging chip and the frequency according to the first output current;

A first target frequency of the first charging chip is determined according to the first preset correspondence relationship and the current frequency of the first charging chip.
The method according to claim 11, wherein before the determining whether the first input current is greater than the maximum input current corresponding to the first battery, comprising:

Obtain the current voltage and temperature of the first battery;

Determine the maximum input current corresponding to the first battery according to the current voltage and temperature of the first battery and a third preset correspondence relationship, the third preset correspondence relationship is that at each temperature, the first battery Correspondence between the maximum allowable input current and the voltage.
The method according to any one of claims 9 to 12, wherein the determining the second target frequency of the second charging chip according to the second output current comprises:

obtaining a second input current of the second battery;

determining whether the second input current is greater than a maximum input current corresponding to the second battery;

When the second input current is greater than the maximum input current corresponding to the second battery, determine a second preset correspondence between the conversion efficiency of the second charging chip and the frequency according to the second output current;

A second target frequency of the second charging chip is determined according to the second preset correspondence relationship and the current frequency of the second charging chip.
An electronic device, comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein, when the processor executes the computer program, the electronic device Realize the charging method as described in any one of claims 1 to 13.
A computer-readable storage medium, the computer-readable storage medium stores a computer program, characterized in that, when the computer program is executed by a computer, the computer implements the computer program described in any one of claims 1 to 13. charging method.