CN114629187A

CN114629187A - Charging control method and device and electronic equipment

Info

Publication number: CN114629187A
Application number: CN202011457772.XA
Authority: CN
Inventors: 李志杰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-06-14
Also published as: WO2022121512A1

Abstract

The disclosure provides a charging control method and device, electronic equipment and a computer storage medium. The charging control method comprises the following steps: acquiring respective working efficiency of a plurality of power management chips, wherein the working efficiency is the ratio of the output power of the power management chip to the input power entering the power management chip; determining the current distribution proportion of the power management chips according to the respective working efficiency of the power management chips; distributing the total current to be distributed according to the current distribution proportion to determine the configuration current distributed by each power management chip; wherein, the total current to be distributed is at least one of total input current and total charging current; and controlling the plurality of power management chips to work according to the configuration current distributed to the plurality of power management chips. This openly has realized under the prerequisite of guaranteeing the security of charging, has improved the speed of charging.

Description

Charging control method and device and electronic equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a charging control method and apparatus, an electronic device, and a computer storage medium.

Background

Electronic equipment such as cell-phone, flat board provide very big facility for people's life, and meanwhile, the user has proposed higher and higher requirement to the speed of charging.

However, during charging, an excessively rapid temperature rise accompanies a large charging speed. When the temperature within the electronic device reaches a certain level, the charging speed is limited for safety reasons. Thereby resulting in no further increase in the charging speed.

The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a charging control method to increase a charging speed while ensuring charging safety.

In order to solve the technical problem, the following technical scheme is adopted in the disclosure:

according to an aspect of the present disclosure, the present disclosure provides a charging control method applied to an electronic device; the electronic equipment comprises a battery and a plurality of power management chips, wherein the power management chips receive total input current from a power supply device and output total charging current to charge the battery; the method comprises the following steps:

acquiring respective working efficiency of the plurality of power management chips, wherein the working efficiency is the ratio of the output power of the power management chip to the input power entering the power management chip;

determining the current distribution proportion of the plurality of power management chips according to the respective working efficiency of the plurality of power management chips;

distributing the total current to be distributed according to the current distribution proportion to determine the configuration current distributed by each power management chip; wherein, the total current to be distributed is at least one of the total input current and the total charging current, and the configuration current is at least one of the input current and the charging current correspondingly;

and controlling the plurality of power management chips to work according to the configuration current distributed to the plurality of power management chips.

According to an embodiment of the present disclosure, the obtaining the respective working efficiencies of the plurality of power management chips includes:

acquiring the temperature of each power management chip in the plurality of power management chips every preset time;

and corresponding to each power management chip, determining the working efficiency corresponding to the temperature of the power management chip based on the preset corresponding relation between the temperature of the power management chip and the working efficiency.

According to an embodiment of the present disclosure, the method further comprises:

acquiring the temperature rise rate of each power management chip;

the determining the charging current distribution proportion of the power management chips according to the working efficiency of the power management chips comprises:

and determining the current distribution proportion of the power management chips according to the respective work efficiency and the respective temperature rise speed of the power management chips.

According to an embodiment of the present disclosure, the obtaining the temperature rise rate of each power management chip includes:

acquiring the temperature rise of each power management chip every preset time;

and for each power management chip, calculating the ratio of the temperature rise of the power management chip to the preset time length to serve as the temperature rise rate of the power management chip.

According to an embodiment of the present disclosure, the obtaining the temperature rise rate of each power management chip further includes:

configuring equal temperature basic values for the plurality of power management chips;

for each power management chip, acquiring the temperature rise of the power management chip as initial temperature rise for the first time;

calculating a difference value between the initial temperature rise and the temperature basic value, wherein the difference value is a first difference value;

and calculating the ratio of the first difference value to the preset time length to serve as the temperature rise rate of the power management chip.

According to an embodiment of the present disclosure, determining the current distribution ratios of the power management chips according to the respective operating efficiencies of the power management chips and the respective temperature rise speeds includes:

determining a first distribution proportion of the plurality of power management chips according to the respective working efficiency of the at least two power management chips;

determining a second distribution proportion of the plurality of power management chips according to the respective temperature rise rates of the at least two power management chips;

and determining the current distribution proportion according to the first distribution proportion and the second distribution proportion.

According to an embodiment of the present disclosure, the determining the current distribution ratio of the plurality of power management chips according to the respective operating efficiencies of the plurality of power management chips includes:

for each power management chip, calculating a proportional coefficient corresponding to the power management chip in the first distribution proportion and an average value of distribution coefficients corresponding to the power management chip in the second distribution proportion;

and taking the average value as a proportionality coefficient of the power management chip in the charging current distribution proportion.

According to an embodiment of the present disclosure, the allocating the total current to be allocated according to the current allocation proportion to determine the configuration current allocated to each power management chip includes:

acquiring the temperature of the battery;

determining the total current to be distributed according to the temperature of the battery;

and distributing the determined total current to be distributed to each power management chip according to the current distribution proportion so as to determine the configuration current distributed to each power management chip.

According to an embodiment of the present disclosure, the determining the total current to be distributed according to the temperature of the battery includes:

searching a first temperature range section in which the temperature of the battery is located in a plurality of preset first temperature range sections;

determining a total charging current corresponding to the searched first temperature range based on a corresponding relation between a preset first temperature range and the total charging current;

the step of distributing the determined total current to be distributed to each power management chip according to the current distribution proportion to determine the configuration current distributed to each power management chip includes:

distributing the determined total charging current to each power management chip according to the current distribution proportion so as to determine the charging current distributed by each power management chip.

searching a second temperature range section in which the temperature of the battery is located in a plurality of preset second temperature range sections;

determining a total input current corresponding to the searched second temperature range based on a corresponding relation between a preset second temperature range and the total input current;

and distributing the determined total input current to each power management chip according to the current distribution proportion so as to determine the input current distributed by each power management chip.

According to an embodiment of the present disclosure, the plurality of power management chips include other power management chips and a first power management chip with the highest current regulation precision;

the step of distributing the total current to be distributed according to the current distribution proportion to determine the configuration current distributed to each power management chip includes:

determining a calculation value of configuration current distributed to each power management chip according to the current distribution proportion;

obtaining the current regulation precision of each power management chip;

determining the priority when the configuration current is distributed according to the sequence of the current regulation precision from low to high;

determining an actual value of the configuration current allocated to the other power management chip and the first power management chip;

for any one of the other power management chips, determining the actual value of the configuration current to be the minimum difference value of the calculated value of the configuration current distributed by the power management chip and be the value of integral multiple of the current regulation precision of the power management chip;

for the first power management chip, the actual charging current is determined as a difference between the total current to be distributed and an actual value of the configuration current distributed to the other power management chips.

According to an embodiment of the present disclosure, the controlling the power management chip to charge the battery according to the respective allocated charging currents includes:

comparing the current distribution proportion with a plurality of preset groups of current distribution correction proportions; the current distribution correction proportion is set according to the proportion of the current regulation precision of the plurality of power management chips;

determining the current distribution correction proportion which is most matched with the current distribution proportion;

and distributing the total current to be distributed to the plurality of power management chips according to the current distribution correction proportion, and determining the actual value of the configuration current distributed by each power management chip.

According to an embodiment of the present disclosure, the power supply device is an adapter, and before the step of obtaining the respective working efficiencies of the plurality of power management chips, the method further includes:

detecting a type of adapter charging the electronic device;

and when the type of the inserted adapter is a PD adapter or a QC adapter and the allowed charging voltage of the electronic device is greater than or equal to a first charging voltage, setting an initial value of the total current to be distributed.

According to an embodiment of the present disclosure, when the type of the plugged adapter is a PD adapter or a QC adapter and the allowable charging power of the electronic device is greater than or equal to a first charging power, setting an initial value of the total current to be distributed according to the temperature of the battery includes:

when the type of the inserted adapter is a PD adapter or a QC adapter and the allowed charging voltage of the electronic equipment is greater than or equal to a first charging voltage, acquiring the temperature of the battery;

setting an initial value of the total current to be distributed according to the temperature of the battery.

According to an embodiment of the present disclosure, the plurality of charging management chips include a first power management chip and a second power management chip;

the first power management chip is a main power management chip on a mainboard of the electronic equipment;

the second power management chip is a secondary power management chip on the mainboard or an external power management chip externally arranged on the mainboard.

According to an embodiment of the present disclosure, the plurality of charging management chips include a first power management chip, a second power management chip, and a third power management chip;

the second power management chip is an auxiliary power management chip on the mainboard;

the third power management chip is an external power management chip externally arranged on the mainboard.

According to another aspect of the present disclosure, a charging control apparatus is provided, which is applied to an electronic device; the electronic equipment comprises a battery and a plurality of power management chips, wherein the power management chips commonly receive total input current from an adapter and commonly output total charging current to charge the battery; the charge control device includes:

a working efficiency obtaining unit, configured to obtain respective working efficiencies of the power management chips, where the working efficiency is a ratio of output power of the power management chip to input power entering the power management chip;

a current distribution ratio determining unit configured to determine a current distribution ratio of the plurality of power management chips according to the respective operating efficiencies of the plurality of power management chips;

the configuration current unit is used for distributing total current to be distributed according to the current distribution proportion so as to determine the configuration current distributed by each power management chip; wherein, the total current to be distributed is at least one of the total input current and the total charging current, and the configuration current is at least one of the input current and the charging current correspondingly;

and the control unit is used for controlling the plurality of power management chips to work according to the configuration current distributed to the power management chips.

According to another aspect of the present disclosure, an electronic device is provided, comprising

A storage unit storing a charging control program;

and the processing unit is used for executing the steps of the charging control method when the charging control program is operated.

According to another aspect of the present disclosure, a computer storage medium is provided, which stores a charging control program that, when executed by at least one processor, implements the steps of the charging control method, or implements the steps of the charging control method.

In the application, the battery is charged through parallel work of the power management chips. Therefore, the total input current/total charging current is shared by the plurality of power management chips, so that the input current/charging current divided by each power management chip is effectively reduced, the heat productivity of the power management chips is reduced, the time length for maintaining the temperature rise of the power management chips below a set threshold is prolonged, and the quick charging time length is prolonged.

Moreover, the current distribution proportion of the plurality of power management chips is obtained according to the respective working efficiency of the plurality of power management chips, the higher the working efficiency is, the larger the proportional coefficient corresponding to the power management chip is, the larger the born input current/charging current is, so that the scheme of the application can improve the utilization rate of electric energy, reduce the loss of the electric energy and reduce the heat productivity on the premise that the plurality of power management chips work in parallel.

In conclusion, the charging speed is improved on the premise that the charging safety is ensured.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

Fig. 2 is a block diagram illustrating a circuit structure of an electronic device according to an embodiment of the present disclosure.

Fig. 3 is a flowchart illustrating a charging control method according to an embodiment of the present disclosure.

Fig. 4 is a flowchart illustrating a charging control method according to another embodiment of the present disclosure.

FIG. 5 is a flowchart illustrating step S211 in FIG. 4, according to an embodiment.

FIG. 6 is a flowchart illustrating step S22 of FIG. 3, according to one embodiment.

FIG. 7 is a flowchart illustrating step S222 of FIG. 6 according to an embodiment.

FIG. 8 is a flowchart illustrating step S22 of FIG. 3, according to one embodiment.

Fig. 9 illustrates steps included in the charging control method before step S20 in fig. 3 according to an embodiment.

Fig. 10 is a block diagram illustrating a configuration of a charge control device according to an embodiment.

FIG. 11 is a system architecture diagram illustrating an electronic device in accordance with one embodiment.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

Preferred embodiments of the present disclosure are described in further detail below with reference to the accompanying drawings of the present specification.

The present disclosure proposes an electronic device, which may be a smart terminal, a mobile terminal device, configured with a battery power supply system. For example, a mobile phone, a tablet computer, a notebook computer, an electronic book reader, a smart wearable device, a mobile power source (such as a charger, a travel charger), an electronic cigarette, a wireless mouse, a wireless keyboard, a wireless headset, a bluetooth sound box, and other rechargeable electronic devices with a charging function.

The following describes a related adapter for charging an electronic device in the related art.

In the related art, the adaptor may operate in a constant voltage mode, and the voltage output therefrom is maintained substantially constant, such as 5V, 9V, 12V, or 20V. The output current can be pulsating direct current (the direction is unchanged, the amplitude is changed along with time), alternating current (both the direction and the amplitude are changed along with time) or constant direct current (both the direction and the amplitude are not changed along with time). The voltage output by the relevant adapter is not suitable for being directly applied to two ends of the battery, but needs to be converted by a conversion circuit in the electronic device to obtain the expected charging voltage and/or charging current of the battery in the electronic device.

The adapter may also operate in a voltage-following manner. The adapter and the electronic equipment to be charged carry out two-way communication, and the adapter feeds back required charging voltage and charging current according to the electronic equipment, so that the voltage and the current output by the adapter are adjusted, the output voltage and the output current can be directly loaded on a battery of the electronic equipment to charge the battery, and the electronic equipment does not need to adjust the charging voltage and the charging current again.

The conversion circuit may control the charging voltage and/or the charging current of the battery during different charging phases. For example, during the constant current charging phase, the inverter circuit may utilize a current feedback loop to cause the magnitude of the current into the battery to meet the magnitude of the first charging current expected by the battery. In the constant voltage charging stage, the conversion circuit may utilize a voltage feedback loop so that the magnitude of the voltage applied across the battery satisfies the magnitude of the charging voltage expected by the battery. During the trickle charge phase, the conversion circuit may utilize a current feedback loop such that the magnitude of the current into the battery meets the magnitude of a second charge current expected by the battery (the second charge current being less than the first charge current).

For example, when the voltage output by the relevant adapter is greater than the expected charging voltage of the battery, the conversion circuit is configured to perform a voltage-down conversion process on the voltage output by the relevant adapter, so that the magnitude of the charging voltage obtained through the voltage-down conversion meets the expected charging voltage of the battery.

The charging mode for the battery of the electronic device is roughly referred to as "normal charging mode" or "quick charging mode". The normal charging mode refers to the adapter outputting a relatively small current value (typically less than 2.5A) or charging the battery in the device to be charged with a relatively small power (typically less than 15W). It usually takes several hours to fully charge a larger capacity battery (e.g., 3000 ma-hour capacity battery) in the normal charging mode. The fast charging mode means that the adapter is capable of outputting a relatively large current (typically greater than 2.5A, such as 4.5A, 5A or even higher) or charging the battery in the device to be charged with a relatively large power (typically greater than or equal to 15W). Compared with the ordinary charging mode, the adapter has higher charging speed in the quick charging mode, and the charging time required for completely charging the battery with the same capacity can be obviously shortened.

The following describes a wireless charging system and a wired charging system in the related art, respectively.

In the wireless charging process, a power supply device (e.g., an adapter) is generally connected to a wireless charging device (e.g., a wireless charging base), and the output power of the power supply device is wirelessly transmitted to the electronic device through the wireless charging device (e.g., an electromagnetic signal or an electromagnetic wave), so as to wirelessly charge the electronic device.

According to different wireless charging principles, wireless charging methods are mainly classified into three methods, namely magnetic coupling (or electromagnetic induction), magnetic resonance and radio wave. Currently, the mainstream Wireless charging standards include QI standard, Power Material Alliance (PMA) standard, and Wireless Power Alliance (A4 WP). The QI standard and the PMA standard both adopt a magnetic coupling mode for wireless charging. The A4WP standard uses magnetic resonance for wireless charging.

In the wired charging process, a power supply device (e.g., an adapter) is generally connected to the electronic device through a cable, and the power supplied by the power supply device is transmitted to the electronic device through the cable to charge the electronic device.

The following describes a currently mainstream Constant Current and Constant Voltage (CCCV) charging method, which is applicable to both wired charging and wireless charging.

The charging process of the battery may include: a trickle charge phase (or mode), a constant current charge phase (or mode), a constant voltage charge phase (or mode), and a supplemental charge phase (or mode).

In the trickle charge stage, the fully discharged battery is pre-charged (i.e. recovery charging), the trickle charge current is usually one tenth of the constant current charge current, and when the battery voltage rises above the trickle charge voltage threshold, the charge current is increased to enter the constant current charge stage.

In the constant current charging stage, the battery is charged by constant current, the charging voltage rises rapidly, and when the charging voltage reaches the expected charging voltage threshold value of the battery, the constant voltage charging stage is switched. The constant current is typically a nominal charge rate current, such as a high rate 3C current, where C is the battery capacity. Assuming a battery capacity of 1700mAh, the constant current is 3 × 1700mA — 5.1A.

In the constant voltage charging stage, the battery is charged at a constant voltage, the charging current is gradually reduced, and when the charging current is reduced to a set current threshold, the battery is fully charged. In the CCCV charging mode, the current threshold is typically set to 0.01C, where C is the battery capacity. Still assuming a battery capacity of 1700mAh, the current threshold is 0.01 x 1700mA to 17 mA.

After the battery is fully charged, partial current loss occurs due to the influence of self-discharge of the battery, and the charging stage is shifted to. During the boost charging phase, the charging current is small only to ensure that the battery is at full charge.

It should be noted that the constant current charging phase does not require the charging current to be kept completely constant, and may refer to, for example, that the peak value or the average value of the charging current is kept constant for a period of time. In practice, the constant current charging stage may be a Multi-stage constant current charging (Multi-stage constant current charging) manner.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure. The electronic device 10 may include a rear housing 11, a display 12, a circuit board 13, and a battery. It should be noted that the electronic device 10 is not limited to include the above contents. Wherein the rear shell 11 may form the outer contour of the electronic device 10. In some embodiments, the rear housing 11 may be a metal rear housing, such as a metal such as magnesium alloy, stainless steel, and the like. It should be noted that the material of the rear case 11 in the embodiment of the present application is not limited to this, and other manners may also be adopted, such as: the rear housing 11 may be a plastic rear housing, a ceramic rear housing, a glass rear housing, or the like.

Wherein a display screen 12 is mounted in the rear case 11. The display screen 12 is electrically connected to the circuit board 13 to form a display surface of the electronic device. In some embodiments, the display surface of the electronic device 10 may be provided with non-display areas, such as: the top end or/and the bottom end of the electronic device 10 may form a non-display area, that is, the electronic device 10 forms a non-display area on the upper portion or/and the lower portion of the display 12, and the electronic device 10 may mount a camera, a receiver, and the like on the non-display area. Note that the display surface of the electronic device 10 may not be provided with the non-display area, that is, the display 12 may be a full-screen. The display screen may be laid over the entire display surface of the electronic device 10, so that the display screen can be displayed in a full screen on the display surface of the electronic device 10.

The electronic device is configured with a charging interface, and the charging interface 123 may be, for example, a USB 2.0 interface, a Micro USB interface, or a USB TYPE-C interface. In some embodiments, the charging interface may also be a lightning interface, or any other type of parallel interface or serial interface capable of being used for charging. The charging interface is connected with the adapter through a data line, the adapter acquires electric energy from mains supply, and the electric energy is transmitted to the charging circuit through the data line and the charging interface after voltage conversion, so that the electric energy can be charged into the battery cell to be charged through the charging circuit.

The electronic device 10 also includes a charging circuit. The charging circuit may charge the battery cells 14 of the electronic device 10. The charging circuit may be used to further regulate the charging voltage and/or charging current input from the adapter to meet the charging requirements of the battery.

Referring to fig. 2, fig. 2 is a block diagram of a circuit structure of an electronic device according to an embodiment of the disclosure. The charging circuit comprises a power management chip (PMIC) and a CPU 14. In the charging process, the charging interface 13 of the electronic device is connected with the adapter or the wireless charging device to receive the input current and output the charging current to the battery 18, so as to charge the battery 18. In the non-charging state, the battery 18 supplies power of a desired specification to various components within the electronic device via the power management chip.

A power management chip (PMIC) is an integrated circuit that includes various power rails and power management functions within a single chip. PMICs are often used to power small-sized, battery 18 powered devices because integrating multiple functions into a single chip may provide higher space utilization and system power efficiency. Common functions integrated within the PMIC include voltage converters and regulators, battery 18 charger, battery 18 fuel gauge, LED driver, real time clock, power sequencer and power control.

In some embodiments, the power management Chip is integrated in a SOC (System on Chip) of the electronic device. In general, a CPU is integrated in an SOC. In some SOCs, two power management chips are integrated, namely a primary power management chip (which may correspond to the first power management chip 15 in fig. 2) and a secondary power management chip (which may correspond to the second power management chip 16 in fig. 2), which together supply power to the electronic device. However, in the related art, when the electronic device is in the charging state, the secondary power management chip does not participate in the charging process, and only the primary power management chip outputs the charging current to the battery 18.

In the disclosure, the electronic device may further include one or more power management chips (which may correspond to the third power management chip 17 in fig. 2) externally disposed to the SOC. Compared with the processing level chips such as the MCU, the power management chip is not high in price, can be applied to middle and low-end equipment, and does not bring obvious cost trouble.

Taking a mobile phone as an example, in the related technology, the low-end project of a thousand-element machine generally only carries a PD charging technology and a high-pass QC quick charging technology published by a USB-IF organization, the PD and the QC are both high-voltage quick charging technologies, and the power supported by the low-end project is generally 9V/2A and 18W. For a single cell, the voltage of the battery 18 is lower than 5V (4.45V is the most common), so 9V PD and QC charging technology needs to step down the voltage of the battery 18 through a voltage step-down circuit. In the voltage reduction process, large energy can be lost, the charging speed is low, and the situation that the heat of the mobile phone is serious due to the fact that the lost electric energy is converted into heat energy is intuitively reflected.

In the disclosure, the plurality of power management chips are simultaneously utilized to work in parallel to charge the battery 18, and dynamic adjustment of the charging current and/or the input current is realized, so that the charging speed is further increased and the charging time is shortened under the condition that the temperature rise of the electronic equipment can meet the temperature rise requirements of the enterprise standard and the national standard.

In the following embodiments, embodiments of the charging control method of the present disclosure will be explained.

In one embodiment, the electronic device includes a battery 18 and a plurality of power management chips, which collectively receive a total input current from a power supply and collectively output a total charging current to charge the battery 18.

In one example, the plurality of charging management chips includes a first power management chip and a second power management chip; the first power management chip is a main power management chip on a mainboard of the electronic equipment; the second power management chip is a secondary power management chip on the mainboard or an external power management chip externally arranged on the mainboard.

Please continue with fig. 2. In another example, the plurality of charge management chips includes a first power management chip 15, a second power management chip 16, and a third power management chip 17; the first power management chip 15 is a main power management chip on a main board of the electronic device; the second power management chip 16 is a secondary power management chip on the motherboard; the third power management chip 17 is an external power management chip externally disposed on the motherboard.

It should be understood that more than three power management chips may also be provided by way of an external power management chip.

Here, all the power management chips are controlled by the CPU of the electronic device, and the CPU distributes the input current and/or the charging current of all the power management chips.

Referring to fig. 3, fig. 3 is a flowchart illustrating a charging control method according to an embodiment of the disclosure. The method comprises the following steps:

and S20, acquiring respective working efficiency of the plurality of power management chips, wherein the working efficiency is the ratio of the output power of the power management chip to the input power entering the power management chip.

And S21, determining the current distribution proportion of the plurality of power management chips according to the respective working efficiency of the plurality of power management chips.

S22, distributing the total current to be distributed according to the current distribution proportion to determine the configuration current distributed by each power management chip; the total current to be distributed is at least one of the total input current and the total charging current, and the configuration current corresponds to at least one of the input current and the charging current.

And S23, controlling the plurality of power management chips to work according to the distributed configuration currents.

Illustratively, during charging, the SOC or CPU of the electronic device communicates with the adapter in a handshake to determine the total input current and total charging current required. Generally, in an actual charging process, the total input current and the total charging current are substantially equal, the total input current is transmitted to the power management chip, the loss in the power management chip is removed, a small part of the current output by the power management chip flows to components such as the SOC for supplying power, and the majority of the current flows to the battery 18 as the charging current to charge the battery 18.

In step S22, there are three schemes, the current distribution ratio determined in step S21 can be applied to distribute the total input current to the input terminals of each power management chip, and the total charging current is not distributed proportionally; the method can also be applied to distributing the total charging current to the output ends of each power management chip according to the current distribution proportion, and at the moment, the total input current is not distributed in proportion; the total input current is distributed according to the current distribution proportion, and the total charging current is also distributed according to the current distribution proportion.

It should be noted that, when the total input current is distributed to the input terminals of the power management chips according to the current distribution ratio, and the total charging current is not distributed proportionally, the threshold of the charging current of each power management chip may be set higher. At this time, during the charging process, the charging current proportion output by each power management chip also approximately approaches the current distribution proportion.

Similarly, when the total charging current is distributed to the output ends of the power management chips according to the current distribution proportion, and the total input current is not distributed proportionally, the threshold of the input current of each power management chip can be set to be higher, and at this time, the input current proportion output by each power management chip also approximately approaches to the current distribution proportion in the charging process.

In step S, the total current to be distributed is distributed according to the current distribution proportion to determine that the configuration current distributed by each power management chip has a corresponding relationship with the total current to be distributed, and if the total current to be distributed is the total input current, the configuration current is the input current of the power management chip correspondingly. And if the total current to be distributed is the total charging current, the configuration current is correspondingly the charging current output by the power management chip.

In step S22, the arrangement current is taken as the charging current. And distributing the total charging current according to the current distribution proportion to determine the charging current distributed by each power management chip. In the actual charging process, the total charging current mentioned in step S22 is actually the maximum threshold of the total charging current, and the configuration current mentioned in step S is actually the maximum charging current threshold of the power management chip. Generally, the total charging current actually entering the battery 18 is the maximum threshold for the total charging current. And each power management chip basically outputs according to the maximum charging current threshold value.

In step S20, the charging efficiency is mainly affected by the characteristics of the power management chip itself and the ambient temperature. Please refer to fig. 2 for illustrative purposes. The working efficiencies of the first power management chip 15, the second power management chip 16 and the third power management chip 17 are respectively obtained, and correspond to e1, e2 and e 3.

In the current distribution ratio, the proportionality coefficient of the first power management chip 15 is p1 ═ e1/(e1+ e2+ e3), the proportionality coefficient of the second power management chip 16 is p2 ═ e2/(e1+ e2+ e3), and the proportionality coefficient of the third power management chip 17 is p3 ═ e3/(e1+ e2+ e 3.

In the charging process, the charging efficiency can change along with the temperature of the power management chip, and the higher the temperature is, the corresponding charging efficiency can be reduced. Therefore, in order to obtain the current real charging efficiency, in an example, the obtaining of the respective working efficiencies of the plurality of power management chips includes:

acquiring the temperature of each power management chip in a plurality of power management chips every other preset time;

The preset time period may be 1 to 5 minutes. For example, 1 minute.

In the laboratory, efficiency tests may be performed on each power management chip. The corresponding relation between the temperature of the power management chip preset by the power management and the working efficiency is tested, and the test relation can be embodied as a table and can also be a function formed by fitting.

During the charging process, the temperature of the power management chip can be measured by the temperature sensor. Therefore, the working efficiency corresponding to the temperature value is searched by reading the temperature value measured by the temperature sensor and corresponding to the measured temperature value, so that the current working efficiency of the power management chip is determined. And updating the working efficiency in real time according to the preset duration.

In the related art, during the charging process, after the temperature rise of the power management chip reaches a set threshold, the charging speed is limited or adjusted downward.

In the present application, on the one hand, the battery 18 is charged by parallel operation of a plurality of power management chips. Therefore, the total input current/total charging current is shared by the plurality of power management chips, so that the input current/charging current divided by each power management chip is effectively reduced, the heat productivity of the power management chips is reduced, the time length of maintaining the temperature rise of the power management chips below a set threshold is prolonged, the quick charging time length is prolonged, and the charging rate is increased according to the scheme disclosed by the invention.

Referring to fig. 4, fig. 4 is a flowchart illustrating a charging control method according to another embodiment of the disclosure. In one embodiment, to prevent the temperature of the power management chip from reaching the limit, the output charging current needs to be reduced. Thus, the method further comprises:

s24, acquiring the temperature rise rate of each power management chip;

s21, determining the charging current distribution ratio of the power management chips according to the operating efficiencies of the power management chips, including:

and S211, determining the current distribution proportion of the power management chips according to the respective work efficiency and the respective temperature rise speed of the power management chips.

In this embodiment, the power management chip has an ADC channel dedicated to acquiring its own temperature, and the current temperature of the power management chip can be acquired in real time. Illustratively, the temperature rise rate of the power management chip can be calculated by setting the temperature rise rate in the software code every 1 minute.

Influenced by the external environment temperature, the temperature rate may be increased or decreased, so in an embodiment, obtaining the temperature increase rate of each power management chip further includes:

configuring equal temperature basic values for a plurality of power management chips;

Illustratively, taking a preset time duration of 1 minute as an example, setting a temperature basic value to be T, and setting the temperature rise obtained for the first time to be ti, the temperature rise rate of the power management chip at the current time is (T-ti)/1.

In this embodiment, the current distribution proportion of the plurality of power management chips is obtained according to the respective working efficiency and temperature rise rate of the plurality of power management chips, so that the calculated current distribution proportion can give consideration to both the working efficiency and the temperature rise rate of the power management chips. Therefore, the reliability that the temperature rise of the power management chip is maintained below the set threshold is improved, and on the premise that the plurality of power management chips maintain high overall working efficiency, the time length that the temperature rise of the power management chip is maintained below the set threshold is prolonged, so that the quick charging time length is prolonged.

In step S211, a plurality of current distribution ratios are determined, please refer to fig. 5, and fig. 5 is a flowchart illustrating step S211 in fig. 4 according to an embodiment. In an embodiment, determining the current distribution ratio of the plurality of power management chips according to the respective operating efficiencies of the plurality of power management chips and the respective temperature rise speeds includes:

step S2111, determining a first distribution proportion of a plurality of power management chips according to the respective working efficiency of at least two power management chips;

step S2112, determining a second distribution proportion of the plurality of power management chips according to the respective temperature rise rates of the at least two power management chips;

step S2113, determining the current sharing ratio according to the first sharing ratio and the second sharing ratio.

Here, the working efficiencies of the first power management chip 15, the second power management chip 16 and the third power management chip 17 are respectively obtained, and correspond to e1, e2 and e 3. The corresponding temperature rise rates are t1, t2 and t 3.

In the first allocation ratio, the scaling factor of the first power management chip 15 is p1 ═ e1/(e1+ e2+ e3), the scaling factor of the second power management chip 16 is p2 ═ e2/(e1+ e2+ e3), and the scaling factor of the third power management chip 17 is p3 ═ e3/(e1+ e2+ e 3).

In the second allocation ratio, the scaling factor of the second power management chip 16 is m 1-t 1/(t1+ t2+ t3), the scaling factor of the second power management chip 16 is m 2-t 2/(t1+ t2+ t3), and the scaling factor of the third power management chip 17 is m 3-t 3/(t1+ t2+ t 3).

Thus, a weighting value y may be set for the scaling factor in the first allocation proportion to x and the scaling factor in the second allocation proportion to y; in the current distribution proportion, the proportionality coefficient of the first power management chip 15 is: p1 × x + m1 × y; the proportionality coefficient of the second power management chip 16 is: p2 × x + m2 × y; the proportionality coefficient of the third power management chip 17 is: p3 × x + m3 × y.

In another embodiment, determining the current distribution ratio of the plurality of power management chips according to the respective operating efficiency of the plurality of power management chips comprises:

In this embodiment, in the current distribution ratio, the ratio coefficient of the first power management chip 15 is: (p1+ m 1)/2; the proportionality coefficient of the second power management chip 16 is: (p2+ m 2)/2; the proportionality coefficient of the third power management chip 17 is: (p3+ m 3)/2.

The total charging current, as well as the total input current, remains substantially constant throughout the charging process. In one embodiment, the total charging current/total input current is set to vary according to the temperature of the battery 18, and in the case where the temperature of the battery 18 is low, the total charging current/total input current is increased to increase the charging speed. When the temperature of the battery 18 is high, the total charging current/total input current is appropriately reduced to ensure charging safety.

Referring to fig. 6, fig. 6 is a flowchart illustrating step S22 in fig. 3 according to an embodiment. Specifically, in an embodiment, the allocating total current to be allocated according to a current allocation proportion to determine the allocation current allocated to each power management chip includes:

step S221, acquiring the temperature of the battery 18;

step S222, determining the total current to be distributed according to the temperature of the battery 18;

step S223, distributing the determined total current to be distributed to each power management chip according to the current distribution ratio to determine the configuration current distributed by each power management chip.

Here, the temperature of the battery 18 may be measured with a temperature sensor or a thermocouple.

Referring to fig. 7, fig. 7 is a flowchart illustrating step S222 in fig. 6 according to an embodiment. Step S222, determining the total current to be distributed according to the temperature of the battery 18, includes:

step S2221, searching for a first temperature range section in which the temperature of the battery 18 is located, among a plurality of preset first temperature range sections;

step S2222, determining a total charging current corresponding to the searched first temperature range based on the corresponding relation between the preset first temperature range and the total charging current;

step S223, distributing the determined total current to be distributed to each power management chip according to the current distribution ratio to determine the configuration current distributed by each power management chip, including:

in step S2231, the determined total charging current is distributed to each power management chip according to a current distribution ratio to determine the charging current distributed by each power management chip.

In this embodiment, the first temperature interval may be divided to be thin. Schematically, Td < -2 ℃, -2 ℃ < Td <0 ℃, 0 ℃ -5 ℃, 5 ℃ < Td <12 ℃, 12 ℃ < Td <16 ℃, 16 ℃ < Td <22 ℃, 22 ℃ < Td <26 ℃, 26 ℃ < Td <33 ℃, 33 ℃ < Td <37 ℃, 37 ℃ < Td <41 ℃, 41 ℃ < Td <45 ℃, 45 ℃ < Td <53 ℃, 53 ℃ < Td.

Corresponding to each first temperature interval, a corresponding total charging current is preset. Here, the temperature of the battery 18 may be detected every 1 minute to 10 minutes to adjust the total charging current.

There is also a similar arrangement for the total input current, specifically:

from the temperature of the battery 18, the total current to be distributed is determined, including:

searching a second temperature range section in which the temperature of the battery 18 is located in a plurality of preset second temperature range sections;

determining the total input current corresponding to the searched second temperature range based on the corresponding relation between the preset second temperature range and the total input current;

distributing the determined total current to be distributed to each power management chip according to a current distribution proportion so as to determine the configuration current distributed to each power management chip, wherein the method comprises the following steps:

and distributing the determined total input current to each power management chip according to a current distribution ratio to determine the input current distributed by each power management chip.

In this embodiment, the second temperature range section can be set wide, for example, Td <35 ℃, 35 ℃ < Td <37 ℃, and 37 ℃ < Td. For example, Td <35 ℃ corresponds to a total input current of 2A, 35 ℃ < Td <37 ℃ corresponds to a total input current of 1.8A, 37 ℃ < Td, and 1.5A.

Each power management chip has current regulation precision, namely, when the power management chip regulates the input current/charging current, the power management chip regulates by taking the current regulation precision as a step length. For example, when a power management chip distributes a charging current of 810mA, but the current regulation precision is 100mA, there is a precision loss of 10 mA.

Here, the current regulation accuracy of the plurality of power management chips may be inconsistent, and the plurality of power management chips are classified into other power management chips and the first power management chip 15 according to the current regulation accuracy, where the current regulation accuracy of the first power management chip 15 is the highest.

Referring to fig. 8, fig. 8 is a flowchart illustrating step S22 in fig. 3 according to an embodiment. In order to reduce the power loss caused by the current regulation precision when distributing the input current/charging current, in one embodiment, the plurality of power management chips include other power management chips, and the first power management chip 15 with the highest current regulation precision;

distributing the total current to be distributed according to the current distribution proportion to determine the configuration current distributed by each power management chip, wherein the method comprises the following steps:

step S224, determining the calculated value of the configuration current distributed by each power management chip according to the current distribution proportion;

step S225, obtaining the current regulation precision of each power management chip;

step S226, determining the priority when the configuration current is distributed according to the sequence of the current regulation precision from low to high;

step S227, determining the actual values of the configuration currents allocated to the other power management chips and the first power management chip 15;

for any power management chip in other power management chips, determining the actual value of the configuration current to be the minimum difference value of the calculated value of the configuration current distributed by the power management chip and be the value of integral multiple of the current regulation precision of the power management chip;

for the first power management chip 15, the actual charging current is determined as the difference between the total current to be distributed and the actual value of the configuration current that has been distributed into the other power management chips.

Schematically, the total charging current will be described as an example. The charging current precision of the first power management chip 15, the second power management chip 16 and the third power management chip 17 is 25ma, 50ma and 100ma respectively, the current distribution ratio is 45%, 25% and 30% respectively, and the total charging current is 1.8A. The calculated values of the charging currents distributed to the three power management chips are 810ma, 450ma and 540ma respectively. In consideration of the current adjustment accuracy of each power management chip, if the current is distributed according to the current distribution ratio, the first power management chip 15 loses 10ma of the charging current (810/25 is 32 to 10), and the third power management chip 17 loses 40ma (540/100 is 5 to 40 ma).

Here, the priority when configuring the current is, the third power management chip 17, the second power management chip 16, and the first power management chip 15.

Therefore, the actual value of the charging current to which the third power management chip 17 is configured is: 540ma/100ma to 5 and 40 ma; the total remaining charge current to be distributed at this time is 1300 ma. The actual value of the charging current configured by the second power management chip 16 in the next time is: the remaining amount of the total charging current to be distributed is 850ma when the current is 9/450 ma. Finally, the actual value of the charging current configured by the third power management chip 17 is: at this time, the total charging current is just fully distributed at 850ma/25 ma-34, and no power is lost.

In the scheme of the embodiment, the power management chip with the highest current regulation precision is used for bearing the electric quantity loss, so that the electric energy loss in the process of distributing the input current/the charging current is effectively reduced, and the electric energy utilization rate is improved.

Moreover, based on the scheme of the embodiment, some power management chips with lower current regulation precision can be selected to reduce the product cost.

Illustratively, in the electronic device, the current regulation accuracy of the main power management chip on the SOC is the highest, the current regulation accuracy of the sub-power management chip on the SOC is the second highest, and the current regulation accuracy of the power management chip externally disposed on the SOC is the lowest.

In another embodiment, the controlling the plurality of power management chips to charge the battery 18 according to the respective allocated charging currents may further include:

comparing the current distribution proportion with a plurality of preset current distribution correction proportions; the current distribution correction proportion is set according to the proportion of the current regulation precision of the plurality of power management chips;

determining a current distribution correction proportion which is most matched with the current distribution proportion;

and distributing the total current to be distributed to a plurality of power management chips according to the current distribution correction proportion, and determining the actual value of the configuration current distributed by each power management chip.

Referring to fig. 9, fig. 9 is a flowchart illustrating steps of the charging control method further included before step S20 in fig. 3 according to an embodiment. In the charging control method of the present disclosure, before the step of obtaining the respective working efficiencies of the plurality of power management chips by using the power supply device as an adapter, the method further includes:

step S25, detecting a type of an adapter that charges the electronic device;

when the type of the inserted adapter is a PD adapter or a QC adapter, and the allowable charging voltage of the electronic device is greater than or equal to the first charging voltage, an initial value of the total current to be distributed is set.

Specifically, in step S25, it may be determined whether the adaptor is a PD adaptor by the level of the CC pin of the Type-C interface of the electronic device. The interface of the DCP (Dedicated Charging Port) can be detected and identified through the BC1.2 Charging protocol, and then secondary identification of the interface of the HVDCP (High Voltage divided Charging Port) is carried out to determine whether the interface is a QC adapter.

This is considered to be because, in some setting scenarios, the electronic device can only be charged at a low voltage, and in this case, the battery 18 only needs to be charged using the main power management chip. The first charging voltage may be set to 9V, so when it is detected that the electronic device has a condition where the charging voltage rises from 5V to 9V, the parallel charging of the multiple charging power management chips may be performed by the above-described charging control method.

In one embodiment, when the type of the inserted adaptor is a PD adaptor or a QC adaptor and the allowed charging power of the electronic device is greater than or equal to the first charging power, setting an initial value of the total current to be distributed according to the temperature of the battery 18 includes:

step S26, when the type of the inserted adapter is a PD adapter or a QC adapter and the allowed charging voltage of the electronic device is greater than or equal to the first charging voltage, acquiring the temperature of the battery 18;

in step S27, an initial value of the total current to be distributed is set according to the temperature of the battery 18.

In step S27, according to the temperature interval in which the temperature of the battery 18 is located, the initial value corresponding to the temperature interval may be found through the preset corresponding relationship between the temperature interval and the initial value.

In the following embodiments, embodiments of the charge control device of the present disclosure will be explained. As for the embodiment of the charge control device, reference may be made to the embodiment of the charge control method described above. Application to electronic devices; the electronic device includes a battery 18 and a plurality of power management chips that collectively receive a total input current from the adapter and collectively output a total charging current to charge the battery 18.

Referring to fig. 10, fig. 10 is a block diagram illustrating a structure of a charging control apparatus 30 according to an embodiment; the charge control device includes:

a working efficiency obtaining unit 31, configured to obtain respective working efficiencies of multiple power management chips, where a working efficiency is a ratio of an output power of a power management chip to an input power entering the power management chip;

a current distribution ratio determining unit 32, configured to determine current distribution ratios of the plurality of power management chips according to respective operating efficiencies of the plurality of power management chips;

the configuration current unit 33 is configured to allocate the total current to be allocated according to the current allocation proportion so as to determine the configuration current allocated to each power management chip; the total current to be distributed is at least one of total input current and total charging current, and the configuration current is at least one of input current and charging current correspondingly;

and a control unit 34, configured to control the plurality of power management chips to operate according to the configuration currents respectively allocated thereto.

It is noted that the block diagram shown in fig. 10 described above is a functional entity and does not necessarily correspond to a physically or logically separate entity. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

Referring to fig. 11, fig. 11 is a system architecture diagram of an electronic device according to an embodiment. The present embodiment also proposes an electronic device 10, which includes a storage unit 41, a processing unit 42; the storage unit 41 stores thereon a charging control program; the processing unit 42 is configured to execute the steps of the above-described charge control method when running the detection program for short circuit in the battery 18.

In particular, the storage unit 41 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM)411 and/or a cache storage unit 412, and may further include a read only storage unit (ROM) 413.

The storage unit 41 may also include a program/utility 414 having a set (at least one) of program modules 415, such program modules 415 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

Bus 43 may be one or more of any of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 10 may also communicate with one or more external devices 50 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 10, and/or with any devices (e.g., router, modem, display unit 44, etc.) that enable the robotic electronic device 10 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 45. Also, the robotic electronic device 10 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 46. As shown in fig. 11, the network adapter 46 communicates with the other modules of the robot's electronic device 10 via the bus 43. It should be understood that although not shown in FIG. 11, other hardware and/or software modules may be used in conjunction with the robotic electronic device 10, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, and may also be implemented by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

The present disclosure also presents a schematic view of a computer-readable storage medium. The computer-readable storage medium may employ a portable compact disc-read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in the present disclosure, a readable storage medium may be any tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The above-mentioned computer-readable medium carries one or more programs which, when executed by one of the apparatuses, cause the computer-readable medium to implement the charging control method shown in fig. 2 to 8.

While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A charging control method is applied to electronic equipment; the electronic equipment is characterized by comprising a battery and a plurality of power management chips, wherein the power management chips receive total input current from a power supply device and output total charging current to charge the battery; the method comprises the following steps:

2. The charge control method according to claim 1, wherein said obtaining respective operating efficiencies of the plurality of power management chips comprises:

3. The charge control method according to claim 1, characterized by further comprising:

acquiring the temperature rise rate of each power management chip;

4. The charging control method according to claim 3, wherein the obtaining the temperature rise rate of each power management chip comprises:

acquiring the temperature rise of each power management chip every preset time;

5. The charging control method according to claim 4, wherein the obtaining the temperature rise rate of each power management chip further comprises:

6. The charge control method according to claim 4, wherein the determining the current distribution ratios of the plurality of power management chips according to the respective operating efficiencies of the plurality of power management chips and the respective temperature rise speeds comprises:

7. The charge control method of claim 6, wherein said determining the current sharing ratios of the plurality of power management chips according to the respective operating efficiencies of the plurality of power management chips comprises:

8. The charge control method according to claim 1, wherein the distributing the total current to be distributed according to the current distribution ratio to determine the configuration current distributed to each power management chip comprises:

acquiring the temperature of the battery;

9. The charge control method of claim 8, wherein said determining the total current to be distributed as a function of the temperature of the battery comprises:

10. The charge control method of claim 8, wherein said determining the total current to be distributed as a function of the temperature of the battery comprises:

11. The charge control method according to claim 1, wherein the plurality of power management chips include other power management chips and a first power management chip having a highest current regulation accuracy;

obtaining the current regulation precision of each power management chip;

12. The charge control method according to claim 1, wherein the controlling the power management chip to charge the battery according to the respective allocated charging currents comprises:

13. The charge control method according to claim 1, wherein the power supply device is an adapter, and before the step of obtaining the respective operating efficiencies of the plurality of power management chips, the method further comprises:

detecting a type of adapter charging the electronic device;

and when the adapter type is a PD adapter or a QC adapter and the allowed charging voltage of the electronic equipment is greater than or equal to a first charging voltage, setting an initial value of the total current to be distributed.

14. The charge control method according to claim 13, wherein the setting of the initial value of the total current to be distributed according to the temperature of the battery when the adapter type is a PD adapter or a QC adapter and the allowed charge power of the electronic device is greater than or equal to a first charge power comprises:

when the adapter type is a PD adapter or a QC adapter and the allowed charging voltage of the electronic equipment is greater than or equal to a first charging voltage, acquiring the temperature of a battery;

15. The charge control method according to claim 1, wherein the plurality of charge management chips include a first power management chip and a second power management chip;

16. The charge control method according to claim 1, wherein the plurality of charge management chips include a first power management chip, a second power management chip, and a third power management chip;

17. A charging control device is applied to electronic equipment; the electronic equipment comprises a battery and a plurality of power management chips, wherein the power management chips commonly receive total input current from an adapter and commonly output total charging current to charge the battery; characterized in that, the charge control device includes:

18. An electronic device, comprising:

a storage unit storing a charging control program;

a processing unit configured to execute the steps of the charging control method according to any one of claims 1 to 16 when the charging control program is executed.

19. A computer storage medium storing a charging control program that when executed by at least one processor implements the steps of the charging control method of any one of claims 1 to 16.