WO2020172869A1 - 电子设备的充电电路及方法、设备、存储介质 - Google Patents

电子设备的充电电路及方法、设备、存储介质 Download PDF

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Publication number
WO2020172869A1
WO2020172869A1 PCT/CN2019/076556 CN2019076556W WO2020172869A1 WO 2020172869 A1 WO2020172869 A1 WO 2020172869A1 CN 2019076556 W CN2019076556 W CN 2019076556W WO 2020172869 A1 WO2020172869 A1 WO 2020172869A1
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WO
WIPO (PCT)
Prior art keywords
switching element
charge pump
charging
voltage
battery assembly
Prior art date
Application number
PCT/CN2019/076556
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English (en)
French (fr)
Inventor
田晨
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP19916792.5A priority Critical patent/EP3761476B1/en
Priority to CN201980003862.0A priority patent/CN111869038B/zh
Priority to PCT/CN2019/076556 priority patent/WO2020172869A1/zh
Priority to US16/893,006 priority patent/US11502535B2/en
Publication of WO2020172869A1 publication Critical patent/WO2020172869A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Definitions

  • the embodiments of the present application relate to electronic technology, and relate to, but are not limited to, charging circuits and methods of electronic devices, devices, and storage media.
  • the embodiments of the present application provide a charging circuit and a method, a device, and a storage medium of an electronic device to solve at least one problem existing in the related art.
  • an embodiment of the present application provides a charging circuit for an electronic device, the charging circuit includes: a control module, a charge pump, and a battery assembly; wherein,
  • the control module is configured to generate a first control signal if it is detected that the connected power adapter is a high-voltage direct charging adapter;
  • the charge pump is configured to directly output the charging voltage input to the electronic device by the power adapter to the battery assembly if the first control signal is received, so as to directly charge the battery assembly.
  • an embodiment of the present application provides a charging method, and the method includes:
  • the connected power adapter is a high-voltage direct charging adapter, generate a first control signal
  • the charge pump in the charging circuit is controlled to be turned on, so that the charging voltage input by the power adapter to the electronic device is directly output to the battery assembly, and the battery assembly is directly charged.
  • an embodiment of the present application provides an electronic device including a memory and a processor.
  • the memory stores a computer program that can run on the processor.
  • the processor executes the program, the above charging method is implemented. step.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps in the above charging method are implemented.
  • a charging circuit of an electronic device is provided.
  • the battery assembly in the charging circuit is charged through a power adapter, if the power adapter that is electrically connected to the electronic device is a high-voltage direct charging adapter, The charging voltage input from the power adapter to the electronic device is output to the battery assembly directly through the charge pump, so as to directly charge the battery assembly, thereby saving components required by the charging circuit and improving the charging efficiency.
  • 1A is a schematic diagram of the composition structure of a charging circuit of an electronic device according to an embodiment of the application;
  • FIG. 1B is a schematic diagram of the composition structure of another charging circuit of an electronic device according to an embodiment of the application.
  • FIG. 2A is a schematic structural diagram of another charging circuit of an electronic device according to an embodiment of the application.
  • 2B is a schematic diagram of the principle when the charging circuit of the embodiment of the application performs high-voltage direct charging
  • 2C is a schematic diagram of the principle of charging a capacitor element by a charging circuit according to an embodiment of the application;
  • 2D is a schematic diagram of the principle of charging the battery assembly by the charging circuit according to the embodiment of the application;
  • FIG. 3 is a schematic diagram of the composition structure of another charging circuit of the electronic device according to the embodiment of the application.
  • FIG. 4 is a schematic diagram of the composition structure of another charging circuit of an electronic device according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of an implementation process of a charging method according to an embodiment of the application.
  • FIG. 6 is a schematic diagram of a hardware entity of an electronic device according to an embodiment of the application.
  • the embodiments of the application provide a charging circuit for electronic equipment.
  • the electronic equipment may include mobile phones, tablet computers, desktop computers, personal digital assistants, navigators, digital phones, video phones, televisions, and sensor devices. Wait.
  • FIG. 1A is a schematic diagram of the composition structure of a charging circuit of an electronic device according to an embodiment of the application.
  • the charging circuit 10 includes a control module 101, a charge pump 102, and a battery assembly 103; among them,
  • the control module 101 is configured to: if it is detected that the connected power adapter is a high-voltage direct charging adapter, generate a first control signal; if it is detected that the connected power adapter is a low-voltage direct charging adapter, generate a second control signal;
  • the first control signal is used to control the charge pump 102 to be turned on, so that the charging voltage input by the power adapter to the electronic device is directly output to the battery assembly 103, and the battery assembly 103 is directly charged;
  • the second control signal is used to control the charge pump 102 to perform boost conversion on the charging voltage, and output the boost converted charging voltage to the battery assembly 103 to charge the battery assembly 103 ;
  • the power adapter can establish an electrical connection with the charge pump 102 through a charging interface (such as a Type-C interface, a USB interface, etc.) in the electronic device.
  • a charging interface such as a Type-C interface, a USB interface, etc.
  • the highest output voltage of the high-voltage direct charging adapter is greater than the voltage of the battery assembly (that is, the potential difference between the positive and negative electrodes of the battery assembly), and the highest output voltage of the low-voltage direct charging adapter is less than the voltage of the battery assembly.
  • the highest output voltage of the low-voltage direct charging adapter is less than the highest output voltage of the high-voltage adapter.
  • the control module 101 may determine the type of the power adapter by the following method: the control module 101 detects that the charging voltage of the power adapter input to the electronic device is greater than a preset voltage threshold When, the power adapter is determined to be a high-voltage direct charging adapter; similarly, when the control module 101 detects that the charging voltage is less than or equal to the voltage threshold, it is determined that the power adapter is a low-voltage direct charging adapter. In other embodiments, after the power adapter establishes an electrical connection with the electronic device, it may also directly send a communication signal to the control module 101 to inform the control module 101 of the type of the power adapter.
  • the charge pump 102 is configured to: if the first control signal is received, the charging voltage input by the power adapter to the electronic device is directly output to the battery assembly 103, so as to perform the operation on the battery assembly 103. Direct charging; if the second control signal is received, the charging voltage is boosted, and the boosted charging voltage is output to the battery assembly 103 to charge the battery assembly 103; Wherein, the battery assembly 103 includes at least one battery cell.
  • the charge pump 102 can directly turn on the line 1021 in the charge pump 102 that only has switching elements, so that the power adapter 104 is input to the electronic device
  • the charging voltage is directly output to the battery assembly 103 to directly charge the battery assembly 103, that is, if the power adapter that is electrically connected to the electronic device is a high-voltage direct charging adapter, it is directly turned on
  • the direct charging path 1021 in the charge pump 102 enables the charge pump 102 to directly output the charging voltage to the battery assembly to realize direct charging of the battery assembly; wherein, the direct charging path 1021 has only switching elements and no Other energy-consuming components.
  • the circuit state of the charge pump is called the bypass mode; when the battery assembly 103 is charged through the low-voltage direct charging adapter, The circuit state of the charge pump 102 is called the boost conversion mode.
  • the current common charge pump only supports the boost conversion mode, that is, the charge pump only works when the power adapter connected to the electronic device is a low-voltage direct charging adapter.
  • the control module detects that the power adapter connected to the electronic device is a low-voltage direct charging adapter, it starts the charge pump.
  • the charge pump uses the storage capacity of the capacitive element to generate an output voltage greater than the input voltage, and then inputs to the low-voltage direct charging adapter.
  • the charging voltage to the electronic device is boosted and converted, and the boosted charging voltage is output to the battery assembly to charge the battery assembly; and when the control module detects that the power supply of the electronic device is connected
  • the adapter is a high-voltage direct charging adapter
  • the charge pump is not started at this time, but a charging branch that supports high-voltage direct charging is turned on except the charge pump, so as to realize direct charging of the battery components.
  • the control module when the battery assembly in the charging circuit is charged through the power adapter, if the power adapter connected to the electronic device is a high-voltage direct charging adapter, the control module generates the first control signal, and Is sent to the charge pump to trigger the charge pump to input the charging voltage of the power adapter to the electronic device after receiving the first control signal, instead of performing step-up or step-down conversion, but directly
  • the charging voltage is output to the battery assembly to directly charge the battery assembly.
  • the charge pump itself consumes less energy and has higher electrical efficiency. Therefore, the charge pump is used to directly output the charging voltage to the battery assembly to realize high-voltage direct charging to the battery assembly. The device and circuit area required for the charging circuit can be saved, and higher charging efficiency can be obtained.
  • the charge pump 102 is configured to:
  • the M switching elements in the charge pump 102 are turned on, so that the charging voltage input by the power adapter to the electronic device passes through the M switching elements and then outputs it to all switching elements.
  • the battery assembly 103 is used to directly charge the battery assembly 103; where M is an integer greater than or equal to 1; that is, the charging circuit 10 supports the high-voltage direct charging adapter through the charge pump 102 During operation, the charging voltage input by the high-voltage direct charging adapter to the electronic device only passes through M switching elements, and then is output to the battery assembly 103 to directly charge the battery assembly 103.
  • the charge pump itself has high electrical efficiency, by changing the working mode of the charge pump, the charge pump can support the work of the high-voltage direct charging adapter, which not only saves the device and area of the charging circuit, but also improves The charging efficiency of the battery assembly.
  • the switching element may be a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), a semiconductor diode, a semiconductor transistor, etc., in the embodiment of the present application
  • MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor
  • the M switching elements may be switching elements of the same model or different models.
  • the capacitive element in the charge pump 102 and N switching elements are alternately turned on to boost the charging voltage so that the output voltage of the charge pump 102 ( That is, the charging voltage after boost conversion is greater than the charging voltage, and the output voltage of the charge pump 102 is directly output to the battery assembly 103 to charge the battery assembly 103, and N is greater than or equal to 1.
  • the integer is the integer.
  • the N switching elements include the M switching elements, and N is an integer greater than or equal to M. Therefore, the N switching elements may be the same type of switching element, or may be different types of switches. element.
  • the double charge pump can perform a double boost conversion of the charging voltage input from the power adapter to the electronic device, that is, under ideal conditions (that is, Regardless of the power loss of the charge pump during the charging process), after the boost conversion, the output voltage of the charge pump 102 is twice the charging voltage (that is, the input voltage of the charge pump 102), as shown in the figure 2A shows a schematic diagram of the composition structure of a charging circuit of another electronic device in an embodiment of the present application. It can be seen from FIG.
  • the charging circuit 20 includes: a control module 201, a charge pump 202, and a battery assembly 203;
  • the charge pump 202 includes: a first switching element S1, a second switching element S2, and a third switching element S3 , The fourth switching element S4, the first capacitive element C1 and the second capacitive element C2;
  • the input terminals of the first switching element S1 and the third switching element S3 serve as the input terminals of the charge pump 202; it should be noted that the input terminal of the charge pump 202 is connected to one end of the control module 201, so The other end of the control module 201 is connected to the battery assembly 203, so that information interaction with the power adapter is realized when the battery assembly is charged through the power adapter, for example, the control module 201 monitors in real time The charging state of each battery cell in the battery assembly 203, and the charging state is notified to the power adapter.
  • the output terminal of the first switching element S1 is connected to the input terminal of the second switching element S2, and the output terminal of the second switching element S2 is grounded;
  • the output terminal of the third switching element S3 is respectively connected to the input terminals of the first capacitive element C1 and the fourth switching element S4;
  • the output terminal of the first capacitive element C1 is connected to the input terminal of the second switching element S2;
  • the output terminal of the fourth switching element S4 serves as the output terminal of the charge pump 202, and is respectively connected to the input terminal of the second capacitive element C2 and the positive electrode of the battery assembly 203;
  • the output terminal of the second capacitive element C2 is grounded, and the negative electrode of the battery assembly 203 is grounded;
  • the control module 201 is configured to: if it is detected that the power adapter connected to the charge pump 202 is a high-voltage direct charging adapter, generate a first control signal and send it to the charge pump 202; if it is detected that the charge pump 202 is connected
  • the power adapter of is a low-voltage direct charging adapter, which generates a second control signal and sends it to the charge pump 202; in practical applications, the control module 201 may be a microcontroller unit (MCU).
  • MCU microcontroller unit
  • the charge pump 202 is configured to: if the first control signal is received, the first switching element S1 and the second switching element S2 are turned off, and the third switching element is turned on S3 and the fourth switching element S4, so that the charging voltage input by the power adapter to the electronic device passes through the third switching element S3 and the fourth switching element S4, and then is output to the battery assembly 203 , To directly charge the battery assembly 203; in this way, through the first control signal, the charge pump is triggered to turn off the first switching element S1 and the second switching element S2, and turn on the third switching element S3 and the fourth switching element S4 enable the charge pump to have the ability to support the operation of the high-voltage direct charging adapter, avoiding the operation of the high-voltage direct charging adapter through the high-voltage direct charging circuit other than the charge pump, thereby saving the charging circuit
  • the required devices can improve the charging efficiency.
  • the charge The pump 202 is configured to, if the second control signal is received, alternately turn on the first group of elements and the second group of elements according to a preset time interval, so that the output voltage of the charge pump 202 The output voltage is greater than the output voltage of the power adapter, and the output voltage of the charge pump 202 is output to the battery assembly 203 to charge the battery assembly 203.
  • the sum of the first duration after the first group of elements is once turned on and the second duration after the second group of elements is once turned on is called a charging cycle.
  • the first duration is equal to the second duration, that is, when the battery assembly is charged through a low-voltage direct charging adapter, the charge pump in the charge pump
  • the switching elements S1 to S4 are always in a switching state with a duty ratio of 50% of the time.
  • the input voltage of C1 is equal to the input voltage of the charge pump Vin; Then, turn on the second set of components, as shown in Figure 2D, S1 and S4 are in the on state, S3 and S2 are in the off state, at this time, without considering the power loss of the charge pump,
  • the output voltage Vout of the charge pump is equal to the sum of the input voltage of the charge pump and the input voltage of C1, that is, the output voltage of the charge pump is twice the input voltage of the charge pump.
  • the charge pump can be switched between the boost conversion mode and the bypass mode.
  • the boost conversion mode of the charge pump is activated;
  • the bypass mode of the charge pump is activated.
  • the charging circuit generally includes a charge pump (used to support low-voltage adapter boost charging) and high-voltage direct charging Circuit (used to support the charging function of the high-voltage direct charging adapter); among them, the high-voltage direct charging circuit includes a switching element S5 (for example, a pair of back-to-back MOS) and a microcontroller MCU2, which is used to control the on and off of S5. In this way, not only the charging efficiency is low, but the charging circuit requires more devices.
  • S5 for example, a pair of back-to-back MOS
  • MCU2 microcontroller
  • a 5V VOOC adapter is used to charge a double battery with a double charge pump as an example.
  • Vin the input voltage of the charge pump
  • Iin the input current
  • Is Vout the output voltage
  • Iout the output voltage
  • the output terminal of the charge pump 401 is connected to the positive electrode of the double battery
  • the input terminal of the charge pump 401 is connected to the output terminal of the adapter.
  • the MCU continuously monitors the status of the dual battery and informs the adapter of the status, and the adapter adjusts its output according to the status.
  • the internal switches S1, S2, S3, and S4 of the charge pump 401 are always in a switching state with a 50% duty cycle.
  • the charge pump in FIG. 4 and the charge pump in FIG. 3 have the same circuit structure as the charge pump shown in FIG. 2A to FIG. 2D. Therefore, the charge pump in FIG. 4 and the charge pump in FIG. The circuit structure of the charge pump.
  • the charge pump 401 When the adapter that supports low-voltage direct charging is inserted, the charge pump 401 is in boost conversion mode; when the adapter that supports high-voltage direct charging is inserted, S3 and S4 of the charge pump 401 enter the ON state, and S1 and S2 enter the cut-off state. Status, the charge pump is in bypass mode at this time, and the output voltage of the adapter is directly connected to the input of the dual battery for direct charging. In this way, high-voltage direct charging is realized by the charge pump 401, which not only saves the components required by the charging circuit, but also improves the charging efficiency of the charging circuit.
  • FIG. 5 is a schematic diagram of the implementation process of the charging method according to the embodiment of the present application. As shown in FIG. 5, the method includes steps S501 to S505:
  • step S501 Detect the type of power adapter connected to the electronic device; if the power adapter is a high-voltage direct charging adapter, perform step S502; if the power adapter is a low-voltage direct charging adapter, perform step S504;
  • the type of the power adapter may be determined by detecting whether the charging voltage input by the power adapter to the electronic device is greater than a preset voltage threshold. For example, if the charging voltage is greater than a preset voltage threshold, the power adapter is determined to be a high-voltage direct charging adapter; if the charging voltage is less than or equal to the voltage threshold, the power adapter is determined to be a low-voltage direct charging adapter.
  • the first control signal is used to control the charge pump in the charging circuit to be turned on, so as to directly output the charging voltage input from the power adapter to the electronic device to the battery assembly to directly charge the battery assembly.
  • control the charge pump in the charging circuit to turn on, so as to directly output the charging voltage input to the electronic device from the power adapter to the battery assembly, and directly charge the battery assembly;
  • the second control signal is used to control the charge pump to perform step-up conversion of the charging voltage, and the charging voltage after the step-up conversion is output to the battery assembly through the charge pump, so as to control the battery The components are charged.
  • control the charge pump Based on the second control signal, control the charge pump to perform boost conversion on the charging voltage, and charge the battery assembly by using the boost conversion charging voltage.
  • the charge pump in the charging circuit is controlled to be turned on based on the first control signal, so as to directly output the charging voltage input from the power adapter to the electronic device to the battery assembly.
  • the direct charging of the battery assembly includes:
  • the M switching elements in the charge pump are turned on, so that after the charging voltage passes through the M switching elements, it is output to the battery assembly, and the battery assembly is directly connected. Charge;
  • the M switching elements are located between the power adapter and the battery assembly, and M is an integer greater than or equal to 1.
  • the charge pump 202 receives the first control signal, based on the first control signal, the first switching element S1 and The second switching element S2 turns on the third switching element S3 and the fourth switching element S4, so that the charging voltage input by the power adapter to the electronic device passes through the third switching element S3 and the After the fourth switching element S4, it is output to the battery assembly 203 to directly charge the battery assembly 203.
  • step S505 based on the second control signal, the capacitive element in the charge pump and the N switching elements in the charge pump are alternately turned on to increase the charging voltage. Voltage conversion, so that the output voltage of the charge pump is greater than the charging voltage; N is an integer greater than or equal to 1, and the output voltage of the charge pump is used to charge the battery assembly.
  • the first switching element S1 and the fourth switching element S4 As a second group of elements, as shown in FIGS. 2C and 2D, if the charge pump 202 receives the second control signal, based on the second control signal, the second control signal is alternately turned on at a preset time interval.
  • the second control signal is alternately turned on at a preset time interval.
  • One set of components and the second set of components so that the output voltage of the charge pump 202 is greater than the charging voltage of the power adapter input to the electronic device, and the output voltage of the charge pump 202 is used to charge the battery The components are charged.
  • the above charging method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer readable storage medium.
  • the computer software products are stored in a storage medium and include several instructions to enable An electronic device (which can be a mobile phone, a tablet computer, a desktop computer, a personal digital assistant, a navigator, a digital phone, a video phone, a television, a sensor device, etc.) performs all or part of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read only memory (Read Only Memory, ROM), magnetic disk or optical disk and other media that can store program codes. In this way, the embodiments of the present application are not limited to any specific hardware and software combination.
  • FIG. 6 is a schematic diagram of a hardware entity of the electronic device according to an embodiment of the application.
  • the hardware entity of the electronic device 600 includes: a memory 601 and a processor. 602.
  • the memory 601 stores a computer program that can run on the processor 602, and the processor 602 implements the steps in the charging method provided in the foregoing embodiment when the processor 602 executes the program.
  • the memory 601 is configured to store instructions and applications executable by the processor 602, and can also cache data to be processed or processed by the processor 602 and each module in the electronic device 600 (for example, image data, audio data, voice communication data, and Video communication data) can be implemented through flash memory (FLASH) or random access memory (Random Access Memory, RAM).
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps in the charging method provided in the foregoing embodiments are implemented.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, such as: multiple units or components can be combined, or It can be integrated into another system, or some features can be ignored or not implemented.
  • the coupling, or direct coupling, or communication connection between the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the functional units in the embodiments of the present application can all be integrated into one processing unit, or each unit can be individually used as a unit, or two or more units can be integrated into one unit;
  • the unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.
  • the foregoing program can be stored in a computer readable storage medium.
  • the execution includes The steps of the foregoing method embodiment; and the foregoing storage medium includes: various media that can store program codes, such as a mobile storage device, a read only memory (Read Only Memory, ROM), a magnetic disk, or an optical disk.
  • ROM Read Only Memory
  • the aforementioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer readable storage medium.
  • the computer software product is stored in a storage medium and includes several instructions to enable An electronic device (which may be a mobile phone, a tablet computer, a desktop computer, a personal digital assistant, a navigator, a digital phone, a video phone, a television, a sensor device, etc.) executes all or part of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: removable storage devices, ROMs, magnetic disks or optical disks and other media that can store program codes.
  • a charging circuit of an electronic device is provided.
  • the battery assembly in the charging circuit is charged through a power adapter, if the power adapter that is electrically connected to the electronic device is a high-voltage direct charging adapter, The charging voltage input from the power adapter to the electronic device is output to the battery assembly directly through the charge pump, so as to directly charge the battery assembly, thereby saving components required by the charging circuit and improving the charging efficiency.

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本申请实施例公开了电子设备的充电电路及方法、设备、存储介质，其中，所述充电电路包括：控制模块、电荷泵和电池组件；所述控制模块，配置为：若检测到连接的电源适配器为高压直充适配器，生成第一控制信号；所述电荷泵，配置为：若接收到所述第一控制信号，将所述电源适配器输入至所述电子设备的充电电压直接输出给所述电池组件，以对所述电池组件进行直充。

Description

电子设备的充电电路及方法、设备、存储介质 技术领域
本申请实施例涉及电子技术，涉及但不限于电子设备的充电电路及方法、设备、存储介质。
背景技术
随着电子技术的发展，电子设备(例如手机)能够满足人们日常生活和工作中的各种需求，这也使得人们对电子设备具有越来越强的依赖性。用户对电子设备的频繁使用，增加了电子设备的电量消耗速度，造成电子设备需要频繁充电，因此，如何提高电子设备的充电效率成为关注点之一。
发明内容
有鉴于此，本申请实施例为解决相关技术中存在的至少一个问题而提供电子设备的充电电路及方法、设备、存储介质。
本申请实施例的技术方案是这样实现的：
第一方面，本申请实施例提供一种电子设备的充电电路，所述充电电路包括：控制模块、电荷泵和电池组件；其中，
所述控制模块，配置为：若检测到连接的电源适配器为高压直充适配器，生成第一控制信号；
所述电荷泵，配置为：若接收到所述第一控制信号，将所述电源适配器输入至所述电子设备的充电电压直接输出给所述电池组件，以对所述电池组件进行直充。
第二方面，本申请实施例提供一种充电方法，所述方法包括：
若检测到连接的电源适配器为高压直充适配器，生成第一控制信号；
基于所述第一控制信号，控制充电电路中的电荷泵导通，以将电源适 配器输入至电子设备的充电电压直接输出给电池组件，对所述电池组件进行直充。
第三方面，本申请实施例提供一种电子设备，包括存储器和处理器，所述存储器存储有可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上述充电方法中的步骤。
第四方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现上述充电方法中的步骤。
在本申请实施例中，提供了电子设备的充电电路，在通过电源适配器对所述充电电路中的电池组件进行充电时，若与电子设备建立电性连接的电源适配器是高压直充适配器时，直接通过电荷泵，将电源适配器输入至电子设备的充电电压输出给电池组件，以对所述电池组件进行直充，从而节约充电电路所需的元器件，提高充电效率。
附图说明
图1A为本申请实施例电子设备的充电电路的组成结构示意图；
图1B为本申请实施例电子设备的另一充电电路的组成结构示意图；
图2A为本申请实施例电子设备的又一充电电路的结构示意图；
图2B为本申请实施例充电电路进行高压直充时的原理示意图；
图2C为本申请实施例充电电路对电容元件充电的原理示意图；
图2D为本申请实施例充电电路对电池组件充电的原理示意图；
图3为本申请实施例电子设备的再一充电电路的组成结构示意图；
图4为本申请实施例电子设备的另一充电电路的组成结构示意图；
图5为本申请实施例充电方法的实现流程示意图；
图6为本申请实施例电子设备的一种硬件实体示意图。
具体实施方式
下面结合附图和实施例对本申请的技术方案进一步详细阐述。
本申请实施例提供一种电子设备的充电电路，一般来说，所述电子设备可以包括手机、平板电脑、台式机、个人数字助理、导航仪、数字电话、视频电话、电视机、传感设备等。
图1A为本申请实施例电子设备的充电电路的组成结构示意图，如图1A所示，所述充电电路10包括控制模块101、电荷泵102和电池组件103；其中，
所述控制模块101，配置为：若检测到连接的电源适配器为高压直充适配器，生成第一控制信号；若检测到连接的电源适配器为低压直充适配器，生成第二控制信号；其中，所述第一控制信号用于控制所述电荷泵102导通，以使所述电源适配器输入至所述电子设备的充电电压直接输出给所述电池组件103，对所述电池组件103进行直充；所述第二控制信号用于控制所述电荷泵102对所述充电电压进行升压转换，并将升压转换后的充电电压输出给所述电池组件103，以对所述电池组件103进行充电；
在实际应用中，电源适配器可以通过电子设备中的充电接口(例如Type-C接口、USB接口等)，与所述电荷泵102建立电性连接。
一般来说，高压直充适配器的最高输出电压大于所述电池组件的电压(即电池组件正负极之间的电势差)，低压直充适配器的最高输出电压小于所述电池组件的电压，所述低压直充适配器的最高输出电压小于所述高压适配器的最高输出电压。在实际应用中，例如，所述控制模块101可以通过以下方法确定所述电源适配器的类型：所述控制模块101检测到所述电源适配器输入至所述电子设备的充电电压大于预设的电压阈值时，确定所述电源适配器为高压直充适配器；同理，所述控制模块101检测到所述充电电压小于或等于所述电压阈值时，确定所述电源适配器为低压直充适配 器。在其他实施例中，所述电源适配器与所述电子设备建立电性连接之后，也可以直接发送通信信号给所述控制模块101，以告知所述控制模块101所述电源适配器的类型。
所述电荷泵102，配置为：若接收到所述第一控制信号，将所述电源适配器输入至所述电子设备的充电电压直接输出给所述电池组件103，以对所述电池组件103进行直充；若接收到所述第二控制信号，对所述充电电压进行升压转换，并将升压转换后的充电电压输出给所述电池组件103，以对所述电池组件103进行充电；其中，所述电池组件103包括至少一节电芯。
例如，图1B所示，若所述电荷泵102接收到所述第一控制信号，可以直接导通所述电荷泵102中只有开关元件的线路1021，从而使得电源适配器104输入至所述电子设备的充电电压直接输出给所述电池组件103，以对所述电池组件103进行直充，也就是说，如果与所述电子设备建立电性连接的电源适配器是高压直充适配器时，直接导通电荷泵102中的直充通路1021，以使所述电荷泵102将所述充电电压直接输出给电池组件，实现对所述电池组件的直充；其中，直充通路1021上只有开关元件，没有其他耗能元件。
一般来说，在通过高压直充适配器对所述电池组件103进行充电时，电荷泵所处的电路状态称为旁路模式；在通过低压直充适配器对所述电池组件103进行充电时，所述电荷泵102所处的电路状态称为升压转换模式。
可以理解地，目前常见的电荷泵仅支持升压转换模式，也就是连接所述电子设备的电源适配器为低压直充适配器时，电荷泵才工作。当控制模块检测到接入所述电子设备的电源适配器是低压直充适配器时，启动电荷泵，电荷泵利用电容元件的储电能力，产生比输入电压大的输出电压，对低压直充适配器输入至电子设备的充电电压进行升压转换，并将升压转换后的充电电压输出给所述电池组件，以对所述电池组件进行充电；而当控制模块检测到接入所述电子设备的电源适配器是高压直充适配器时，此时 不启动电荷泵，而是导通电荷泵以外的一条支持高压直充的充电支路，从而实现对电池组件的直充。但是，这样，所导致的不足是：第一，需要额外的器件和空间搭建高压直充电路，以支持高压直充适配器；第二，相比于电荷泵，额外的高压直充电路在充电过程中消耗的电能较多，电效率低，影响电池组件的充电效率。
基于此，在本申请实施例中，在通过电源适配器对所述充电电路中的电池组件进行充电时，若连接电子设备的电源适配器是高压直充适配器时，控制模块生成第一控制信号，并发送给所述电荷泵，以触发所述电荷泵在接收到所述第一控制信号之后，将所述电源适配器输入至电子设备的充电电压不进行升压或者降压转换，而是直接将所述充电电压输出给所述电池组件，以对所述电池组件进行直充。由于在充电过程中，电荷泵本身消耗的能量较少，具有较高的电效率，因此，利用电荷泵将所述充电电压直接输出给所述电池组件，实现对电池组件的高压直充，不仅能够节约充电电路所需器件和电路面积，还能够获得较高的充电效率。
在其他实施例中，所述电荷泵102，配置为：
若接收到所述第一控制信号，导通所述电荷泵102中的M个开关元件，使所述电源适配器输入至所述电子设备的充电电压经过所述M个开关元件之后，输出给所述电池组件103，以对所述电池组件103进行直充；其中，M为大于或等于1的整数；也就是说，所述充电电路10在通过所述电荷泵102，支持高压直充适配器的工作时，高压直充适配器输入至所述电子设备的充电电压只经过了M个开关元件，就输出给了所述电池组件103，以对电池组件103进行直充。因为电荷泵本身具有较高的电效率，所以，通过改变所述电荷泵的工作模式，使得所述电荷泵能够支持高压直充适配器的工作，不仅节约了充电电路的器件和面积，还提高了所述电池组件的充电效率。
在其他实施例中，所述开关元件可以是金属-氧化物半导体场效应晶体管(Metal-Oxide-Semiconductor Field-Effect Transistor，MOSFET)，还可以是半导体二极管、半导体三极管等，在本申请实施例中，对所述开关元件的类型不做限定。需要说明的是，所述M个开关元件可以是相同型号的开关元件，也可以是不同型号的开关元件。
若接收到所述第二控制信号，利用所述电荷泵102中的电容元件和交替导通N个开关元件，以对所述充电电压进行升压转换，使所述电荷泵102的输出电压(即升压转换后的充电电压)大于所述充电电压，并将所述电荷泵102的输出电压直接输出给所述电池组件103，以对所述电池组件103进行充电，N为大于或等于1的整数。
需要说明的是，所述N个开关元件包括所述M个开关元件，N为大于等于M的整数，所以，所述N个开关元件可以是相同型号的开关元件，也可以是不同型号的开关元件。
以所述电荷泵102为2倍电荷泵为例，2倍电荷泵能够将所述电源适配器输入至所述电子设备的充电电压进行2倍升压转换，也就是，在理想条件下(也就是不考虑充电过程中所述电荷泵的电能损耗)，进行升压转换之后，所述电荷泵102的输出电压为所述充电电压(即所述电荷泵102的输入电压)的2倍，如图2A所示，其示出了本申请实施例另一种电子设备的充电电路的组成结构示意图。从图2A中可以看出，充电电路20包括：控制模块201、电荷泵202和电池组件203；所述电荷泵202，包括：第一开关元件S1、第二开关元件S2、第三开关元件S3、第四开关元件S4、第一电容元件C1和第二电容元件C2；其中，
所述第一开关元件S1和第三开关元件S3的输入端作为所述电荷泵202的输入端；需要说明的是，所述电荷泵202的输入端与所述控制模块201的一端连接，所述控制模块201的另一端与所述电池组件203连接，从而在通过所述电源适配器对所述电池组件进行充电时，实现与所述电源适配 器的信息交互，例如，所述控制模块201实时监控所述电池组件203中各个电芯的充电状态，并将所述充电状态告知所述电源适配器。
所述第一开关元件S1的输出端与所述第二开关元件S2的输入端连接，所述第二开关元件S2的输出端接地；
所述第三开关元件S3的输出端分别与所述第一电容元件C1和第四开关元件S4的输入端连接；
所述第一电容元件C1的输出端与所述第二开关元件S2的输入端连接；
所述第四开关元件S4的输出端作为所述电荷泵202的输出端，分别与所述第二电容元件C2的输入端、所述电池组件203的正极连接；
所述第二电容元件C2的输出端接地，所述电池组件203的负极接地；
对应地，在上述图2A所示的充电电路20的基础上，
所述控制模块201，配置为：若检测到连接所述电荷泵202的电源适配器为高压直充适配器，生成第一控制信号并发送给所述电荷泵202；若检测到连接所述电荷泵202的电源适配器为低压直充适配器，生成第二控制信号并发送给所述电荷泵202；在实际应用中，所述控制模块201可以是微控单元(Microcontroller Unit，MCU)。
如图2B所示，所述电荷泵202，配置为：若接收到所述第一控制信号，截止所述第一开关元件S1和所述第二开关元件S2，导通所述第三开关元件S3和所述第四开关元件S4，以使所述电源适配器输入至所述电子设备的充电电压经过所述第三开关元件S3和所述第四开关元件S4后，输出给所述电池组件203，以对所述电池组件203进行直充；这样，通过第一控制信号，触发所述电荷泵截止所述第一开关元件S1和所述第二开关元件S2，导通所述第三开关元件S3和所述第四开关元件S4，使得所述电荷泵具有支持高压直充适配器工作的能力，避免通过所述电荷泵以外的高压直充电路配合高压直充适配器的工作，从而节约充电电路所需的器件，提高充电效率。
假设将所述第三开关元件S3和所述第二开关元件S2作为第一组元件， 所述第一开关元件S1和所述第四开关元件S4作为第二组元件，对应地，所述电荷泵202，配置为：若接收到所述第二控制信号，按照预设的时间间隔，交替导通所述第一组元件和所述第二组元件，以使所述电荷泵202的输出电压大于所述电源适配器的输出电压，并将所述电荷泵202的输出电压输出给所述电池组件203，以对所述电池组件203进行充电。
一般来说，将一次导通所述第一组元件之后的第一持续时长与一次导通所述第二组元件之后的第二持续时长的和，称为一个充电周期。通常情况下，在每一充电周期中，所述第一持续时长等于所述第二持续时长，也就是说，在通过低压直充适配器对所述电池组件进行充电时，所述电荷泵中的开关元件S1至S4一直处于50％的时间占空比的开关状态。
可以理解地，在一个充电周期中，首先，导通所述第一组元件，如图2C所示，S3和S2处于导通状态，S1和S4处于截止状态，此时，电源适配器输入至所述电子设备的充电电压(即所述电荷泵的输入电压Vin)经过第三开关元件S3之后，给第一电容元件C1进行充电，充电完成后，C1的输入压等于所述电荷泵的输入电压Vin；然后，导通所述第二组元件，如图2D所示，S1和S4处于处于导通状态，S3和S2处于截止状态，此时，在不考虑电荷泵的电能损耗的前提下，电荷泵的输出电压Vout等于电荷泵的输入电压与C1的输入电压之和，即，电荷泵的输出电压是电荷泵的输入电压的2倍。
本申请实施例中，通过改变电荷泵中开关元件的工作时序，使得所述电荷泵可以在升压转换模式和旁路模式之间切换。例如，当插入所述电子设备的电源适配器是一个支持低压直充(即，电源适配器最高输出电压低于电池组件的电压)的适配器时，启动所述电荷泵的升压转换模式；当插入所述电子设备的电源适配器是一个支持高压直充的适配器(即，电源适配器最高输出电压高于电池组件的电压)时，启动所述电荷泵的旁路模式。
在其他实施例中，若要求充电电路支持高压直充和低压给电池组件充电，如图3所示，那么该充电电路中一般包括电荷泵(用于支持低压适配器升压充电)和高压直充电路(用于支持高压直充适配器的充电功能)；其中，高压直充电路包括开关元件S5(例如，一对背靠背的MOS)和微控单元MCU2，MCU2用于控制S5的导通与截止。这样，不仅充电效率低，充电电路所需器件较多。
基于此，在本申请实施例中，以用5V的VOOC适配器配合2倍电荷泵给双电池充电为例，如图4所示，假设电荷泵的输入电压为Vin、输入电流为Iin、输出电压为Vout、输出电流为Iout。电荷泵401的输出端与双电池的正极连接，电荷泵401的输入端与适配器的输出端连接。MCU不断监控双电池的状态，并将状态告知适配器，适配器根据状态调整自身的输出。其中，在电荷泵401支持低压直充适配器时，电荷泵401的内部开关S1、S2、S3和S4一直处于50％时间占空比的开关状态。需要说明的是，图4中的电荷泵、图3中的电荷泵与图2A至图2D所示的电荷泵的电路结构相同，因此这里不再赘述图4中的电荷泵和图3中的电荷泵的电路结构。
根据电荷泵的升压转换原理(即电荷泵支持低压直充适配器时的工作原理)，在不考虑转换效率的情况下，Vout＝2*Vin，Iout＝Iin/2。
当插入的是支持低压直充的适配器时，电荷泵401处于升压转换模式；当插入的是支持高压直充的适配器时，电荷泵401的S3、S4进入导通状态，S1，S2进入截止状态，此时电荷泵处于旁路模式，适配器的输出电压直接接到双电池的输入端，进行直充。这样，通过电荷泵401实现高压直充，不仅节省了充电电路所需的器件，还提升了充电电路的充电效率。
基于前述的实施例，本申请实施例提供一种充电方法，图5为本申请实施例充电方法的实现流程示意图，如图5所示，所述方法包括步骤S501至步骤S505：
S501、检测连接电子设备的电源适配器的类型；若所述电源适配器为高压直充适配器，执行步骤S502；若所述电源适配器为低压直充适配器，执行步骤S504；
在其他实施例中，可以通过检测所述电源适配器输入至所述电子设备的充电电压是否大于预设的电压阈值，来确定所述电源适配器的类型。例如，若所述充电电压大于预设的电压阈值，确定所述电源适配器为高压直充适配器；若所述充电电压小于或等于所述电压阈值，确定所述电源适配器为低压直充适配器。
S502、生成第一控制信号，然后进入步骤S503；
其中，所述第一控制信号用于控制充电电路中的电荷泵导通，以将电源适配器输入至电子设备的充电电压直接输出给电池组件，对所述电池组件进行直充，所述电池组件包括至少一节电芯。
S503、基于所述第一控制信号，控制充电电路中的电荷泵导通，以将电源适配器输入至电子设备的充电电压直接输出给电池组件，对所述电池组件进行直充；
S504、生成第二控制信号，然后进入步骤S505；
其中，所述第二控制信号用于控制所述电荷泵对所述充电电压进行升压转换，通过所述电荷泵将升压转换后的充电电压输出给所述电池组件，以对所述电池组件进行充电。
S505、基于所述第二控制信号，控制所述电荷泵对所述充电电压进行升压转换，并利用升压转换后的充电电压对电池组件进行充电。
在其他实施例中，对于步骤S503，所述基于所述第一控制信号，控制充电电路中的电荷泵导通，以将电源适配器输入至所述电子设备的充电电压直接输出给电池组件，对所述电池组件进行直充，包括：
基于所述第一控制信号，导通所述电荷泵中的M个开关元件，以使所述充电电压经过所述M个开关元件之后，输出给所述电池组件，对所述电 池组件进行直充；
其中，所述M个开关元件位于所述电源适配器与所述电池组件之间，M为大于或等于1的整数。
以图2A所示的充电电路20为例，如图2B所示，若所述电荷泵202接收到所述第一控制信号，基于所述第一控制信号，截止所述第一开关元件S1和所述第二开关元件S2，导通所述第三开关元件S3和所述第四开关元件S4，以使所述电源适配器输入至电子设备的充电电压经过所述第三开关元件S3和所述第四开关元件S4后，输出给所述电池组件203，以对所述电池组件203进行直充。
在其他实施例中，对于步骤S505，基于所述第二控制信号，利用所述电荷泵中的电容元件和交替导通所述电荷泵中的N个开关元件，以对所述充电电压进行升压转换，使所述电荷泵的输出电压大于所述充电电压；N为大于或等于1的整数；利用所述电荷泵的输出电压对所述电池组件进行充电。
以图2A所示的充电电路20为例，假设将所述第三开关元件S3和所述第二开关元件S2作为第一组元件，所述第一开关元件S1和所述第四开关元件S4作为第二组元件，如图2C和2D所示，若所述电荷泵202接收到所述第二控制信号，基于所述第二控制信号，按照预设的时间间隔，交替导通所述第一组元件和所述第二组元件，以使所述电荷泵202的输出电压大于所述电源适配器输入至所述电子设备的充电电压，并利用所述电荷泵202的输出电压对所述电池组件进行充电。
需要说明的是，本申请实施例中，若以软件功能模块的形式实现上述的充电方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算 机软件产品存储在一个存储介质中，包括若干指令用以使得电子设备(可以是手机、平板电脑、台式机、个人数字助理、导航仪、数字电话、视频电话、电视机、传感设备等)执行本申请各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本申请实施例不限制于任何特定的硬件和软件结合。
对应地，本申请实施例提供一种电子设备，图6为本申请实施例电子设备的一种硬件实体示意图，如图6所示，该电子设备600的硬件实体包括：包括存储器601和处理器602，所述存储器601存储有可在处理器602上运行的计算机程序，所述处理器602执行所述程序时实现上述实施例中提供的充电方法中的步骤。
存储器601配置为存储由处理器602可执行的指令和应用，还可以缓存待处理器602以及电子设备600中各模块待处理或已经处理的数据(例如，图像数据、音频数据、语音通信数据和视频通信数据)，可以通过闪存(FLASH)或随机访问存储器(Random Access Memory，RAM)实现。
对应地，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现上述实施例中提供的充电方法中的步骤。
这里需要指出的是：以上存储介质和设备实施例的描述，与上述方法实施例的描述是类似的，具有同方法实施例相似的有益效果。对于本申请存储介质和设备实施例中未披露的技术细节，请参照本申请方法实施例的描述而理解。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意 适合的方式结合在一个或多个实施例中。应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元；既可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本申请各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本申请上述集成的单元若以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得电子设备(可以是手机、平板电脑、台式机、个人数字助理、导航仪、数字电话、视频电话、电视机、传感设备等)执行本申请各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
工业实用性
在本申请实施例中，提供了电子设备的充电电路，在通过电源适配器对所述充电电路中的电池组件进行充电时，若与电子设备建立电性连接的电源适配器是高压直充适配器时，直接通过电荷泵，将电源适配器输入至电子设备的充电电压输出给电池组件，以对所述电池组件进行直充，从而节约充电电路所需的元器件，提高充电效率。

Claims (18)

  1. 一种电子设备的充电电路，其特征在于，所述充电电路包括：控制模块、电荷泵和电池组件；其中，
    所述控制模块，配置为：若检测到连接的电源适配器为高压直充适配器，生成第一控制信号；
    所述电荷泵，配置为：若接收到所述第一控制信号，将所述电源适配器输入至所述电子设备的充电电压直接输出给所述电池组件，以对所述电池组件进行直充。
  2. 根据权利要求1所述的充电电路，其特征在于，
    所述控制模块，还配置为：若检测到连接的电源适配器为低压直充适配器，生成第二控制信号；其中，所述低压直充适配器的最高输出电压小于所述高压适配器的最高输出电压；
    所述电荷泵，还配置为：若接收到所述第二控制信号，对所述充电电压进行升压转换，并将升压转换后的充电电压输出给所述电池组件，以对所述电池组件进行充电。
  3. 根据权利要求1所述的充电电路，其特征在于，所述电荷泵，配置为：
    若接收到所述第一控制信号，导通所述电荷泵中的M个开关元件，以使所述充电电压经过所述M个开关元件之后，输出给所述电池组件，对所述电池组件进行直充；M为大于或等于1的整数。
  4. 根据权利要求2所述的充电电路，其特征在于，所述电荷泵，配置为：
    若接收到所述第二控制信号，利用所述电荷泵中的电容元件和交替导通N个开关元件，以对所述充电电压进行升压转换，使所述电荷泵的输出电压大于所述充电电压，并将所述电荷泵的输出电压输出给所述电池组件， 以对所述电池组件进行充电，N为大于或等于1的整数。
  5. 根据权利要求2所述的充电电路，其特征在于，所述电荷泵，包括：第一开关元件、第二开关元件、第三开关元件、第四开关元件、第一电容元件和第二电容元件；其中，
    所述第一开关元件和第三开关元件的输入端作为所述电荷泵的输入端；
    所述第一开关元件的输出端与所述第二开关元件的输入端连接，所述第二开关元件的输出端接地；
    所述第三开关元件的输出端分别与所述第一电容元件和第四开关元件的输入端连接；
    所述第一电容元件的输出端与所述第二开关元件的输入端连接；
    所述第四开关元件的输出端作为所述电荷泵的输出端，分别与所述第二电容元件的输入端、所述电池组件的正极连接；
    所述第二电容元件的输出端接地，所述电池组件的负极接地；
    对应地，所述电荷泵，配置为：
    若接收到所述第一控制信号，截止所述第一开关元件和所述第二开关元件，导通所述第三开关元件和所述第四开关元件，以使所述充电电压经过所述第三开关元件和所述第四开关元件之后，输出给所述电池组件，以对所述电池组件进行直充。
  6. 根据权利要求5所述的充电电路，其特征在于，所述第三开关元件和所述第二开关元件作为第一组元件，所述第一开关元件和所述第四开关元件作为第二组元件；
    所述电荷泵，配置为：
    若接收到所述第二控制信号，按照预设的时间间隔，交替导通所述第一组元件和所述第二组元件，以使所述电荷泵的输出电压大于所述充电电压，并将所述电荷泵的输出电压输出给所述电池组件，以对所述电池组件 进行充电。
  7. 根据权利要求2所述的充电电路，其特征在于，所述控制模块，还配置为：
    若检测到所述充电电压大于预设的电压阈值，确定所述电源适配器为高压直充适配器；
    若检测到所述充电电压小于或等于所述电压阈值，确定所述电源适配器为低压直充适配器。
  8. 根据权利要求3至6任一项所述的充电电路，其特征在于，所述开关元件为以下元件之一：金属-氧化物半导体场效应晶体管MOSFET、半导体三极管、半导体二极管。
  9. 一种充电方法，其特征在于，所述方法包括：
    若检测到连接电子设备的电源适配器为高压直充适配器，生成第一控制信号；
    基于所述第一控制信号，控制充电电路中的电荷泵导通，以将电源适配器输入至电子设备的充电电压直接输出给电池组件，对所述电池组件进行直充。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    若检测到所述电源适配器为低压直充适配器，生成第二控制信号；
    基于所述第二控制信号，控制所述电荷泵对所述充电电压进行升压转换，并利用升压转换后的充电电压对电池组件进行充电。
  11. 根据权利要求9所述的方法，其特征在于，所述基于所述第一控制信号，控制充电电路中的电荷泵导通，以将电源适配器输入至所述电子设备的充电电压直接输出给电池组件，对所述电池组件进行直充，包括：
    基于所述第一控制信号，导通所述电荷泵中的M个开关元件，以使所述充电电压经过所述M个开关元件之后，输出给所述电池组件，对所述电池组件进行直充；
    其中，所述M个开关元件位于所述电源适配器与所述电池组件之间，M为大于或等于1的整数。
  12. 根据权利要求10所述的方法，其特征在于，所述基于所述第二控制信号，控制所述电荷泵对所述充电电压进行升压转换，并利用升压转换后的充电电压对电池组件进行充电，包括：
    基于所述第二控制信号，利用所述电荷泵中的电容元件和交替导通所述电荷泵中的N个开关元件，以对所述充电电压进行升压转换，使所述电荷泵的输出电压大于所述充电电压；N为大于或等于1的整数；
    利用所述电荷泵的输出电压对所述电池组件进行充电。
  13. 根据权利要求11所述的方法，其特征在于，所述基于所述第一控制信号，导通所述电荷泵中的M个开关元件，以使所述充电电压经过所述M个开关元件之后，输出给所述电池组件，对所述电池组件进行直充，包括：
    基于所述第一控制信号，截止所述电荷泵中的第一开关元件和第二开关元件，导通所述电荷泵中的第三开关元件和第四开关元件，以使所述充电电压经过所述第三开关元件和所述第四开关元件之后，输出给所述电池组件，对所述电池组件进行直充；
    其中，所述第一开关元件和第三开关元件的输入端作为所述电荷泵的输入端；所述第一开关元件的输出端与所述第二开关元件的输入端连接，所述第二开关元件的输出端接地；所述第三开关元件的输出端分别与所述第一电容元件和第四开关元件的输入端连接；所述第一电容元件的输出端与所述第二开关元件的输入端连接；所述第四开关元件的输出端作为所述电荷泵的输出端，分别与所述第二电容元件的输入端、所述电池组件的正极连接；所述第二电容元件的输出端接地，所述电池组件的负极接地。
  14. 根据权利要求12所述的方法，其特征在于，所述基于所述第二控制信号，利用所述电荷泵中的电容元件和交替导通所述电荷泵中的N个开 关元件，以对所述充电电压进行升压转换，使所述电荷泵的输出电压大于所述充电电压，包括：
    根据所述第二控制信号，按照预设的时间间隔，交替导通所述电荷泵中的第一组元件和第二组元件，以使所述电荷泵的输出电压大于所述充电电压；
    其中，所述第一组元件包括第三开关元件和第二开关元件，所述第二组元件包括第一开关元件和第四开关元件；
    所述第一开关元件和第三开关元件的输入端作为所述电荷泵的输入端；所述第一开关元件的输出端与所述第二开关元件的输入端连接，所述第二开关元件的输出端接地；所述第三开关元件的输出端分别与所述第一电容元件和第四开关元件的输入端连接；所述第一电容元件的输出端与所述第二开关元件的输入端连接；所述第四开关元件的输出端作为所述电荷泵的输出端，分别与所述第二电容元件的输入端、所述电池组件的正极连接；所述第二电容元件的输出端接地，所述电池组件的负极接地。
  15. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    若检测到所述充电电压大于预设的电压阈值，确定所述电源适配器为高压直充适配器；
    若检测到所述充电电压小于或等于所述电压阈值，确定所述电源适配器为低压直充适配器。
  16. 根据权利要求11至14任一项所述的方法，其特征在于，所述开关元件为以下元件之一：金属-氧化物半导体场效应晶体管MOSFET、半导体三极管、半导体二极管。
  17. 一种电子设备，包括存储器和处理器，所述存储器存储有可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现权利要求9至16任一项所述充电方法中的步骤。
  18. 一种计算机可读存储介质，其上存储有计算机程序，其特征在 于，该计算机程序被处理器执行时实现权利要求9至16任一项所述充电方法中的步骤。
PCT/CN2019/076556 2019-02-28 2019-02-28 电子设备的充电电路及方法、设备、存储介质 WO2020172869A1 (zh)

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