WO2024001941A1

WO2024001941A1 - Double-battery series circuit, circuit control method and electronic device

Info

Publication number: WO2024001941A1
Application number: PCT/CN2023/102066
Authority: WO
Inventors: 朱娜涛
Original assignee: 维沃移动通信有限公司
Priority date: 2022-06-29
Filing date: 2023-06-25
Publication date: 2024-01-04
Also published as: CN115065123A

Abstract

The present application belongs to the technical field of electronic circuits. Disclosed are a double-battery series circuit, a circuit control method and an electronic device. The circuit comprises a battery module, a battery level calculation module, a controller, a battery level balancing module, a first circuit and a second circuit. The battery module comprises a first battery and a second battery which are connected in series. The battery level calculation module is used for collecting the voltage of the first battery and the voltage of the second battery. A first end of the controller is connected to the battery level calculation module, and a second end of the controller is connected to the battery level balancing module, the controller being used for obtaining a battery level balancing control signal according to the voltage of the first battery and the voltage of the second battery. The battery level balancing module is used for controlling the first circuit to work or controlling the second circuit to work according to the battery level balancing control signal. When the first circuit works, the battery module is in a second battery charging state, and when the second circuit works, the battery module is in a first battery charging state.

Description

Double battery series circuit, circuit control method and electronic device

Cross-references to related applications

This application claims the priority of Chinese patent application 202210781874.X submitted on June 29, 2022, the entire content of which is incorporated herein by reference.

Technical field

The application belongs to the field of electronic circuit technology, and specifically relates to a dual-battery series circuit, a circuit control method and electronic equipment.

Background technique

With the continuous innovation of smart terminal equipment, various smart terminal manufacturers have launched or are about to launch folding screen mobile phones. Folding screen mobile phones have larger displays, consume a lot of power, and require larger battery capacity, and folding screen mobile phones have There are two fuselages on the left and right. Each fuselage has a battery. The two batteries are connected in parallel. Although the battery capacity problem can be solved, the battery charging path after parallel connection generates greater heat, slows the charging speed, and affects the battery life.

Contents of the invention

The purpose of this application is to provide a dual-battery series circuit, a circuit control method and an electronic device that can solve the problem of heating during charging of the existing dual-battery circuit.

In a first aspect, this application provides a dual-battery series circuit. The circuit includes: a battery module, a power calculation module, a controller, a power balancing module, a first circuit and a second circuit; the battery module includes a first battery and a third battery connected in series. Two batteries, the battery module is used to power the load; the power calculation module is connected to both ends of the first battery and the two ends of the second battery, and the power calculation module is used to collect the voltage of the first battery and the voltage of the second battery; control The first end of the controller is connected to the power calculation module, and the second end of the controller is connected to the power balancing module. The controller is used to obtain the power based on the voltage of the first battery and the voltage of the second battery. Balance control signal; the power balance module is used to control the operation of the first circuit or control the operation of the second circuit according to the power balance control signal; wherein, when the first circuit is working, the battery module is in the second battery charging state, and when the second circuit is working , the battery module is in the first battery charging state.

In a second aspect, this application provides a circuit control method. The circuit control method is applied to the dual-battery series circuit of any one of the first aspects. The method includes: obtaining the voltage of the first battery and the voltage of the second battery; When the voltage difference between the battery and the second battery is greater than the first preset value, the first circuit is controlled to operate or the second circuit is controlled to operate.

In a third aspect, the present application provides an electronic device, which includes the dual-battery series circuit of any one of the first aspects.

In a fourth aspect, the present application provides an electronic device. The electronic device includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the method of the second aspect is implemented. A step of.

In a fifth aspect, the present application provides a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method of the second aspect are implemented.

In a sixth aspect, this application provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method in the second aspect.

In a seventh aspect, embodiments of the present application provide a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the method of the second aspect.

In this application, a dual-battery series circuit, a circuit control method and an electronic device are provided. By arranging a first battery and a second battery in series in the battery module of the dual-battery series circuit, small heating in the charging path and fast charging can be achieved. Effect; and the dual-battery series circuit collects the voltage of the first battery and the voltage of the second battery through the power calculation module, so that the controller can control the operation of the first circuit or control the second battery according to the voltage of the first battery and the voltage of the second battery. When the circuit is working, the battery module is in the second battery charging state when the first circuit is working, and when the second circuit is working, the battery module is in the first battery charging state, which can realize mutual charging of the first battery or the second battery, thereby The first battery and the second battery are equalized.

Description of drawings

Figure 1 is a dual-battery series circuit diagram provided in this embodiment;

Figure 2 is a current flow diagram of the first circuit in this embodiment;

Figure 3 is a current flow diagram of the second circuit in this embodiment;

Figure 4 is a power control method for a dual-battery series circuit provided in this embodiment;

Figure 5 is a schematic structural diagram of an electronic device provided in this embodiment;

Figure 6 is a schematic structural diagram of another electronic device provided in this embodiment;

FIG. 7 is a schematic diagram of the hardware structure of an electronic device that implements an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in orders other than those illustrated or described herein, and that "first," "second," etc. are distinguished Objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

The dual-battery series circuit provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

Figure 1 is a dual-battery series circuit provided in this embodiment. Referring to Figure 1, the dual-battery series circuit includes: a battery module 101, a power calculation module 102, a controller 103, a power balancing module 104, a first circuit 105 and a second Circuit 106.

Among them, the battery module 101 is used to power the load, and the load can be a folding screen terminal. The battery module 101 includes a first battery and a second battery connected in series. When the first battery and the second battery are used in a folding screen terminal, the first battery can be set in the secondary body of the folding screen terminal to serve as the secondary screen of the folding screen terminal. To provide power, the second battery can be installed in the main body of the folding screen terminal to provide power for the main screen of the folding screen terminal.

Since connecting the batteries of the folding screen terminal in parallel will cause the total current to rise, causing the folding screen terminal to heat up, therefore, in this embodiment, the first battery and the second battery are connected in series. When connected in series, the currents of the folding screen terminal circuit are equal for charging. The circuit generates little heat and charges quickly.

Considering that after the first battery and the second battery are connected in series, due to the different loads connected to the first battery and the second battery, or due to the different loss and attenuation of each battery during battery transportation and use, there will be two There is a difference in battery power. Therefore, the dual-battery series circuit of this embodiment also includes a power calculation module 102, a controller 103, a power balancing module 104, a first circuit 105 and a second circuit 106, which can balance the first battery and the second The charge of the battery is equalized to the charge of the first battery and the second battery.

The power calculation module 102 in this embodiment is connected to both ends of the first battery and both ends of the second battery respectively. The power calculation module 102 is used to collect the voltage of the first battery and the voltage of the second battery. Referring to Figure 1, the negative electrode of the first battery is connected to ground, the positive electrode of the first battery is connected to the negative electrode of the second battery, the first end of the power calculation module 102 is connected to the positive pole of the second battery, and the second end of the power calculation module 102 is connected to the first battery. The positive electrode of the power calculation module 102 is connected to the ground, so that the power calculation module 102 can collect the voltage V1 of the first battery and the voltage V2 of the second battery. The fourth end of the power calculation module 102 is connected to the first terminal of the controller 103 end.

In this embodiment, the first end of the controller 103 is connected to the power calculation module 102 for obtaining the voltage V1 of the first battery and the voltage V2 of the second battery collected by the power calculation module 102. The second end of the controller 103 is connected to the power calculation module 102. The balancing module 104 and the controller 103 are configured to obtain a cell balancing control signal according to the voltage V1 of the first battery and the voltage V2 of the second battery, and send the cell balancing control signal to the cell balancing module 104 . The power balance module 104 is used to control the operation of the first circuit 105 or the operation of the second circuit 106 according to the power balance control signal, so that when the first circuit 105 is working, the second circuit 106 stops working, and when the second circuit 106 is working, the first circuit 105 suspends work.

When the first circuit 105 is working, the second battery is charged through the first circuit 105, and the battery The module 101 is in the second battery charging state. When the second circuit 106 is working, the first battery is charged through the second circuit 106, and the battery module 101 is in the first battery charging state. In order to balance the power of the first battery and the second battery.

Figure 2 is a current flow diagram of the first circuit in this embodiment. Referring to Figures 1 and 2, the first circuit 105 includes a first switch Q1, a first charge pump 107 and a second switch Q4. The first end of the first switch Q1 is connected to the positive electrode of the first battery, the second end of the first switch Q1 is connected to the first end of the first charge pump 107 , and the second end of the first charge pump 107 is connected to the second switch. The first terminal of Q4 and the second terminal of the second switching tube Q4 are connected to the positive electrode of the second battery, and the negative electrode of the second battery is connected to the positive electrode of the first battery. The control end of the first switching transistor Q1 and the control end of the second switching transistor Q4 are respectively connected to the cell balancing module 104. The cell balancing module 104 is used to control the conduction of the first switching transistor Q1 and the second switching transistor Q4.

In one example, the first switching tube Q1 and the second switching tube Q4 are both MOS tubes. The power balancing module 104 can realize the first switching tube Q1 by controlling the control terminal voltages of the first switching tube Q1 and the second switching tube Q4. and the conduction of the second switch Q4, wherein the first circuit 105 is used to transfer the power of the first battery to the second battery, that is, use the first battery to charge the second battery, so that the first battery and the second battery are charged. The battery power is balanced.

In one example, the battery level of the first battery corresponding to the secondary body is lower than the battery level of the second battery corresponding to the main body. Since the main fuselage and the auxiliary fuselage require different voltages to operate, in this embodiment, the first charge pump 107 in the first circuit 105 is a boost charge pump. When the first circuit 105 is working, the first charge pump 107 is a boost charge pump. The circuit 105 is used to boost the voltage across the first battery through the first charge pump 107 and then output the voltage to the second battery. For example, the output voltage of the second battery is twice the output voltage of the first battery. Then, when charging the second battery through the first circuit 105, the voltage output by the first battery needs to be amplified by 2 times through the first charge pump 107 and then output to the second battery, then the first charge pump 107 is used Amplify the voltage by 2 times and transmit it to the second battery.

Figure 3 is a current flow diagram of the second circuit 106 in this embodiment. Referring to Figures 1 and 3, in this embodiment, the second circuit 106 includes a third switch Q3, a second charge pump 108 and a fourth switch Q2. ; The first end of the third switch Q3 is connected to the positive electrode of the second battery, the second end of the third switch Q3 is connected to the first end of the second charge pump 108, and the second end of the second charge pump 108 is connected to the fourth switch. No. of tube Q2 One end and the second end of the fourth switching tube Q2 are connected to the negative electrode of the second battery, and the negative electrode of the second battery is connected to the positive electrode of the first battery. The control end of the third switching transistor Q3 and the control end of the fourth switching transistor Q2 are respectively connected to the power balancing module 104. The power balancing module 104 is used to control the conduction of the third switching transistor Q3 and the fourth switching transistor Q2.

In this embodiment, the second charge pump 108 in the second circuit 106 is a buck charge pump. When the second circuit 106 is working, the second circuit 106 is used to reduce the voltage across the second battery through the second charge pump 108 and then output the voltage to the first battery. For example, the output voltage of the first battery is 1/2 of the output voltage of the second battery. Then, when charging the first battery through the second circuit 106, the voltage output by the second battery needs to be reduced by 1/2 through the second charge pump 108 and then output to the first battery, then the second charge pump 108 uses After reducing the voltage by 1/2, it is transmitted to the first battery.

In one example, the third switching tube Q3 and the fourth switching tube Q2 are both MOS tubes. The power balancing module 104 can realize the third switching tube Q3 by controlling the control terminal voltages of the third switching tube Q3 and the fourth switching tube Q2. and the conduction of the fourth switch Q2, wherein the second circuit 106 is used to transfer the power of the second battery to the first battery, that is, use the second battery to charge the first battery, so that the first battery and the second battery are charged. The battery power is balanced.

This embodiment provides a dual-battery series circuit. By arranging a first battery and a second battery in series in the battery module, the effect of small heating in the charging path and fast charging can be achieved; and the dual-battery series circuit collects the first battery through the power calculation module. The voltage of the battery and the voltage of the second battery, so that the controller can control the operation of the first circuit or the operation of the second circuit according to the voltage of the first battery and the voltage of the second battery. When the first circuit is operating, the battery module is in the third state. In the second battery charging state, when the second circuit is working, the battery module is in the first battery charging state, which can realize mutual charging of the first battery or the second battery, thereby balancing the power of the first battery and the second battery.

Figure 4 is a circuit control method provided by this embodiment. The circuit control method is applied to the dual-battery series circuit shown in Figures 1 to 3. The execution subject of the method may be a controller of the dual-battery series circuit.

Referring to Figure 4, the circuit control method includes the following steps S401~S402:

Step S401: Obtain the voltage of the first battery and the voltage of the second battery.

In this embodiment, the voltage of the first battery and the voltage of the second battery may be the open circuit voltage (open circuit voltage, OCV) of the battery. When the system power consumption of an electronic device is too high, the battery voltage will drop due to the large battery discharge, which will lead to inaccurate OCV detection of the battery. Therefore, before testing the battery OCV voltage, it is first necessary to detect the system power consumption of the electronic device. .

In this embodiment, before obtaining the voltage of the first battery and the voltage of the second battery, the method further includes: obtaining the power consumption of the electronic device, and when the power consumption is less than the second preset value, performing the acquisition of the third The voltage of one battery and the voltage of the second battery are steps.

In this embodiment, the electronic device of this embodiment is provided with a dual-battery series circuit shown in FIG. 1 to execute the circuit control method of this embodiment. It can be a folding screen terminal or other smart terminal with dual batteries.

For example, the second preset value can be 50mA. Then, when the power consumption is ≤50mA, it means that the electronic device system consumes less power at this time and the battery drop can be ignored. Then the voltage of the first battery and the voltage of the second battery can be obtained. Voltage.

When the power consumption is greater than the second preset value, for example, when the power consumption is greater than 50 mA, it indicates that the OCV voltage detection is inaccurate at this time, and the prerequisite for power balance is not met, and the process returns to step S401.

It can be understood that when the electronic device is running, the first battery or the second battery is in an external discharge state. If the power balance is performed at this time, it will affect the operation of the electronic device. Therefore, before obtaining the power consumption of the electronic device, this The embodiment also includes: obtaining the operating status of the electronic device; and performing the step of obtaining the power consumption of the electronic device when the operating status of the electronic device is a standby state. For example, when the folding screen terminal enters the screen-off standby interface, a program for obtaining the power consumption of the electronic device is triggered.

Step S402: When the voltage difference between the first battery and the second battery is greater than the first preset value, control the operation of the first circuit or control the operation of the second circuit.

In this embodiment, after obtaining the voltage of the first battery and the voltage of the second battery, it can be determined whether to perform battery balancing based on the relationship between the difference between the voltage of the first battery and the voltage of the second battery and the first preset value.

For example, the first preset value may be 20mV, and the voltage difference between the voltage of the first battery and the voltage of the second battery is δmV. When δmV < 20mV, it means that the power of the first battery and the second battery are similar. There is no need to perform power balancing, and return to step S401.

When δmV ≥ 20mV, it means that the power difference between the first battery and the second battery is large, and power balancing needs to be performed. At this time, the power difference between the first battery and the second battery needs to be calculated based on the voltage difference δmV. The first battery and the second battery are balanced based on the power difference.

Among them, since the first battery and the second battery are connected in series, the currents are equal. If the voltage of the first battery, the voltage of the second battery and the series current of the first battery and the second battery are known, the first battery can be obtained respectively. The current power of the battery and the current power of the second battery are obtained, thereby obtaining the power difference between the first battery and the second battery.

In this embodiment, when the voltage difference between the first battery and the second battery is greater than the first preset value, a cell balance control signal may be generated to control the operation of the first circuit or the operation of the second circuit. The cell balance control signal may include a first circuit operation signal that controls the operation of the first circuit to charge the second battery, or the cell balance control signal may include a second circuit operation signal that controls the operation of the second circuit to charge the first battery.

Specifically, when the voltage difference between the first battery and the second battery is greater than the first preset value, and the voltage of the first battery is greater than the voltage of the second battery, the power of the first battery is greater than that of the second battery. power, the first circuit is controlled to work, and the power of the first battery is output to the second battery through the first circuit to charge the second battery. The battery module is in the second battery charging state until the power of the first battery and the second battery is reached. balanced.

When the voltage difference between the first battery and the second battery is greater than the first preset value, and the voltage of the first battery is less than the voltage of the second battery, and the power of the first battery is less than the power of the second battery, then The second circuit is controlled to work, and the power of the second battery is output to the first battery through the second circuit to charge the first battery. The battery module is in the charging state of the first battery until the power of the first battery and the second battery is balanced.

After the first battery and the second battery are balanced, it is necessary to stop balancing the battery on either battery, so the first circuit and the second circuit need to be disconnected. In this embodiment, the voltage of the first battery and the voltage of the second battery can be balanced. The voltage of the two batteries is used to obtain the power of the first battery and the power of the second battery; according to the average of the power of the first battery and the power of the second battery, the power to be balanced is obtained; according to the sum of the power to be balanced The voltage of the first battery is used to obtain the working time of the first circuit; or, based on the power to be balanced and the voltage of the second battery, the working time of the second circuit is obtained.

In this embodiment, after the voltage of the first battery and the voltage of the second battery are known, since the first battery and the second battery are connected in series and have the same current, the power of the first battery can be obtained based on the voltage and current of the first battery. , the power of the second battery can be obtained according to the voltage and current of the second battery.

Considering that in the process of using the first battery to charge the second battery, or in the process of using the first battery to charge the second battery, the battery itself that outputs the power will also be consumed. Therefore, this embodiment uses the power of the first battery to charge the second battery. and the average power of the second battery to obtain the power to be balanced. The purpose of power balancing is to keep the power of the first battery and the second battery balanced.

In one example, the electronic equipment operates within the rated power range. When the electric quantity and the equipment voltage are known, the required discharge time can be obtained according to the electric quantity formula Q=(P/U)·Δt, where P is the electron The operating power of the equipment, U is the voltage, and Δt is the discharge time.

Therefore, the working time of the first circuit can be obtained based on the power to be balanced and the voltage of the first battery, or the working time of the second circuit can be obtained based on the power to be balanced and the voltage of the second battery.

For example, when the voltage difference between the first battery and the second battery is greater than the first preset value, and the voltage of the first battery is greater than the voltage of the second battery, the power of the first battery is greater than the power of the second battery. , the controller controls the first circuit to work. The working time of the first circuit is t. After t time, the power of the first battery and the second battery reaches equilibrium, and the controller controls the first circuit to stop working.

This embodiment determines whether to enter the power balance mode by obtaining the power consumption of an electronic device equipped with a dual-battery series circuit. When the power consumption is less than the preset value, the voltage of the first battery and the voltage of the second battery are obtained. Voltage; compare the difference between the voltage of the first battery and the voltage of the second battery with the second preset value, when the difference between the voltage of the first battery and the voltage of the second battery is greater than the second preset value , obtain the power balance control signal, thereby controlling the operation of the first circuit or controlling the operation of the second circuit according to the power balance control signal. When the power of the first battery is greater than the power of the second battery, the power of the first battery can be balanced to the second battery, or when the power of the first battery is less than the power of the second battery, the power of the second battery is balanced to the first battery, thereby achieving the purpose of balancing the power of the first battery and the second battery in series and extending the battery life.

FIG. 5 is a schematic structural diagram of an electronic device provided in this embodiment. Referring to FIG. 5 , the electronic device provided in this embodiment includes the dual-battery series circuit shown in FIGS. 1 to 3 .

The electronic device in this embodiment may be a folding screen terminal, such as a folding mobile phone or other smart terminal with dual batteries.

Figure 6 is a schematic structural diagram of another electronic device provided in this embodiment. Referring to Figure 6, the electronic device includes a processor 601 and a memory 602. The memory 602 stores programs or instructions that can be run on the processor 601. The programs or instructions are When the processor 601 executes, each process implemented by the embodiment of the power control method for a dual-battery series circuit is not repeated here to avoid repetition.

The electronic device of this embodiment may be the controller shown in FIG. 1 .

The electronic device in the embodiment of the present application may be an electronic device or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than the terminal. For example, the electronic device can be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle-mounted electronic device, a mobile internet device (Mobile Internet Device, MID), or augmented reality (AR)/virtual reality (VR). ) equipment, robots, wearable devices, ultra-mobile personal computers (UMPC), netbooks or personal digital assistants (personal digital assistants, PDA), etc., and can also be servers, network attached storage (Network Attached Storage), NAS), personal computer (PC), television (TV), teller machine or self-service machine, etc., the embodiments of this application are not specifically limited.

It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

The electronic device 1000 includes but is not limited to: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, processor 1010, etc. part.

Those skilled in the art can understand that the electronic device 1000 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 1010 through a power management system. The power management system is used to manage functions such as charging, discharging, and power consumption management. The structure of the electronic device shown in Figure 7 does not constitute a limitation on the electronic device. The electronic device may include more or less components than shown in the figure, or combine certain components, or arrange different components, which will not be described again here. .

Among them, the processor 1010 is used to obtain the voltage of the first battery and the voltage of the second battery; when the voltage difference between the first battery and the second battery is greater than the first preset value, control the operation of the first circuit or control the second battery. Second circuit operation.

Processor 1010 is used to obtain the power consumption of an electronic device. The electronic device is equipped with a dual-battery series circuit; when the power consumption is less than a preset value, perform the step of obtaining the voltage of the first battery and the voltage of the second battery. .

The processor 1010 is also used to obtain the operating status of the electronic device; when the operating status of the electronic device is the standby state, perform the step of obtaining the power consumption of the electronic device.

The processor 1010 is also used to control the operation of the first circuit when the voltage difference between the first battery and the second battery is greater than the first preset value, and the voltage of the first battery is greater than the voltage of the second battery; in the first When the voltage difference between the battery and the second battery is greater than the first preset value, and the voltage of the first battery is less than the voltage of the second battery, the second circuit is controlled to operate.

The processor 1010 is also configured to obtain the power of the first battery and the power of the second battery based on the voltage of the first battery and the voltage of the second battery; and obtain the power to be balanced based on the power of the first battery and the power of the second battery; According to the power to be balanced and the voltage of the first battery, the working time of the first circuit is obtained; or, based on the power to be balanced and the voltage of the second battery, the working time of the second circuit is obtained.

This embodiment determines whether to enter the power balance mode by obtaining the power consumption of an electronic device equipped with a dual-battery series circuit. When the power consumption is less than the preset value, the voltage of the first battery and the voltage of the second battery are obtained. Voltage; compare the difference between the voltage of the first battery and the voltage of the second battery with the second preset value, when the difference between the voltage of the first battery and the voltage of the second battery is greater than the second preset value , obtain the power balance control signal, thereby controlling the operation of the first circuit or controlling the operation of the second circuit according to the power balance control signal. When the power of the first battery is greater than the power of the second battery, the power of the first battery can be balanced to the second battery, or when the power of the first battery is less than the power of the second battery, the power of the second battery is balanced to the first battery, so that the first battery and the second battery are connected in series. The purpose of power balancing is to extend battery life.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042. The graphics processor 10041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072 . Touch panel 10071, also known as touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

Memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 1009 may include volatile memory or nonvolatile memory, or memory 1009 may include both volatile and nonvolatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 1009 in the embodiment of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates application Processor and modem processor, among which the application processor mainly processes operations involving the operating system, user interface and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1010.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above circuit control method embodiment is implemented, and the same technology can be achieved. The effect will not be described here to avoid repetition.

Wherein, the processor is the processor in the electronic device in the above embodiment. Readable storage media includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical disks.

The embodiment of the present application also provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement each process of the above circuit control method embodiment, and can achieve the same To avoid repetition, the technical effects will not be repeated here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-a-chip or system-on-chip, etc.

Embodiments of the present application provide a computer program product. The program product is stored in a storage medium. The program product is executed by at least one processor to implement each process of the power control method embodiment of a dual-battery series circuit, and can To achieve the same technical effect, to avoid repetition, we will not repeat them here.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various may be added, omitted, or combined. step. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer program product that is essentially or contributes to the existing technology. The computer program product is stored in a storage medium (such as ROM/RAM, disk , optical disk), including several instructions to cause a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A dual-battery series circuit, wherein the circuit includes: a battery module, a power calculation module, a controller, a power balance module, a first circuit and a second circuit;

The battery module includes a first battery and a second battery connected in series, and the battery module is used to power a load;

The power calculation module is connected to both ends of the first battery and both ends of the second battery respectively, and the power calculation module is used to collect the voltage of the first battery and the voltage of the second battery;

The first end of the controller is connected to the power calculation module, and the second end of the controller is connected to the power balancing module. The controller is used to calculate the voltage of the first battery and the voltage of the second battery. voltage to obtain the power balance control signal;

The power balance module is used to control the operation of the first circuit or control the operation of the second circuit according to the power balance control signal;

Wherein, when the first circuit is working, the battery module is in the second battery charging state, and when the second circuit is working, the battery module is in the first battery charging state.
The dual-battery series circuit according to claim 1, wherein the first circuit includes a first switch tube, a first charge pump and a second switch tube;

The first end of the first switch tube is connected to the positive electrode of the first battery, the second end of the first switch tube is connected to the first end of the first charge pump, and the second end of the first charge pump The end is connected to the first end of the second switch tube, the second end of the second switch tube is connected to the positive electrode of the second battery, and the negative electrode of the second battery is connected to the positive electrode of the first battery;

The control end of the first switching tube and the control end of the second switching tube are respectively connected to the power balancing module, and the power balancing module is used to control the power of the first switching tube and the second switching tube. conduction.
The dual-battery series circuit according to claim 1, wherein the second circuit includes a third switching tube, a second charge pump and a fourth switching tube;

The first end of the third switch tube is connected to the positive electrode of the second battery, the second end of the third switch tube is connected to the first end of the second charge pump, and the second end of the second charge pump end connected to the fourth open The first end of the fourth switch tube is connected to the negative electrode of the second battery, and the negative electrode of the second battery is connected to the positive electrode of the first battery;

The control end of the third switching tube and the control end of the fourth switching tube are respectively connected to the power balancing module, and the power balancing module is used to control the power of the third switching tube and the fourth switching tube. conduction.
The dual battery series circuit according to claim 1, wherein,

The first charge pump in the first circuit is a boost charge pump;

The second charge pump in the second circuit is a buck charge pump.
A circuit control method, wherein the circuit control method is applied to the dual-battery series circuit according to any one of claims 1 to 4, and the method includes:

Obtain the voltage of the first battery and the voltage of the second battery;

When the voltage difference between the first battery and the second battery is greater than the first preset value, the first circuit is controlled to operate or the second circuit is controlled to operate.
The method of claim 5, wherein before obtaining the voltage of the first battery and the voltage of the second battery, the method further includes:

Obtain the power consumption of an electronic device equipped with the dual-battery series circuit;

When the power consumption is less than the second preset value, the step of obtaining the voltage of the first battery and the voltage of the second battery is performed.
The method according to claim 6, wherein before obtaining the power consumption of the electronic device, the method further includes:

Obtain the operating status of the electronic device;

When the running state of the electronic device is a standby state, the step of obtaining the power consumption of the electronic device is performed.
The method according to claim 5, wherein, when the voltage difference between the first battery and the second battery is greater than a first preset value, controlling the operation of the first circuit or controlling the operation of the second circuit includes:

When the voltage difference between the first battery and the second battery is greater than the first preset value, and the voltage of the first battery is greater than the voltage of the second battery, control the operation of the first circuit;

When the voltage difference between the first battery and the second battery is greater than the first preset value, and the voltage of the first battery is less than the voltage of the second battery, the second circuit is controlled to operate.
The method of claim 5, further comprising:

According to the voltage of the first battery and the voltage of the second battery, the power of the first battery and the power of the second battery are obtained;

According to the average of the power of the first battery and the power of the second battery, the power to be balanced is obtained;

The working time of the first circuit is obtained according to the electric quantity to be balanced and the voltage of the first battery; or the working time of the second circuit is obtained according to the electric quantity to be balanced and the voltage of the second battery.
An electronic device, comprising the dual-battery series circuit according to any one of claims 1-4.
An electronic device, wherein the electronic device includes a processor and a memory, the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the claims are implemented The steps of the circuit control method described in any one of 5-9.
A readable storage medium, wherein a program or instructions are stored on the readable storage medium, and when the program or instructions are executed by a processor, the steps of the circuit control method described in any one of claims 5-9 are implemented.
A chip, wherein the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in any one of claims 5-9 Circuit control methods.
A computer program product, wherein the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the circuit control method according to any one of claims 5-9.