Power management system and method for portable devices

Abstract

The application provides a power management system and method applied to a portable device, wherein the system comprises a hardware component and a software component; the hardware component comprises a power conversion unit, a micro processing unit and a communication interface which are integrated together; the power conversion unit is used for power conversion of input power; the micro processing unit is connected with the power conversion unit and is used for controlling operation data of the power conversion unit; the communication interface is connected with the micro processing unit and the software component respectively; and the software component is arranged in the portable device and is used for controlling the hardware component through the communication interface. The system integrates the power conversion unit, the micro processing unit and the communication interface together, and controls the micro processing unit through the software component arranged in the portable device, so that the system has the advantages of high integration, small size and light weight, and can be applied to the portable device and is beneficial to the expansion of the software component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power electronics, and in particular to a power management system and method applied to a portable device. BACKGROUND

[0002] At present, various electronic devices have higher and higher requirements for power managers. The power managers are responsible for power conversion, monitoring, management and control. In the related art, the power managers are large in size and not portable, which is not conducive to being used in portable electronic devices and affects the use experience. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art.

[0004] To this end, one object of the present application is to provide a power management system applied to a portable device, which has the advantages of high integration, small size and light weight, and thus can be applied to portable devices and is conducive to the expansion of software components.

[0005] Another object of the present application is to provide a power management method applied to a portable device.

[0006] To achieve the above object, a power management system applied to a portable device is provided according to a first aspect of the present application, comprising: a hardware component and a software component; the hardware component comprises: a power conversion unit, a micro processing unit and a communication interface integrated in one package; wherein the power conversion unit is configured to convert input power; the micro processing unit is connected to the power conversion unit, and the micro processing unit is configured to control the power conversion unit according to running data of the hardware component; the communication interface is connected to the micro processing unit and the software component respectively; and the software component is configured in a portable device and is configured to control the micro processing unit through the communication interface.

[0007] According to one embodiment of the present application, the running data of the hardware component comprises at least one of the running voltage, the running current and the communication data.

[0008] According to one embodiment of the present application, the software component comprises a first control unit configured to drive the micro processing unit to control the power conversion unit according to the input voltage of the power conversion unit.

[0009] According to an embodiment of the present application, the first control unit is specifically configured to: according to the input voltage, call a preset voltage identification reference table to determine the type of the input power supply; according to the type of the input power supply, determine a target input parameter of the power conversion unit corresponding to the type; and based on the target input parameter, drive the micro control unit to control the power conversion unit.

[0010] According to an embodiment of the present application, the software component comprises a second control unit configured to drive the micro processing unit to control the power conversion unit according to the voltage at the output end of the power conversion unit.

[0011] According to an embodiment of the present application, the second control unit is specifically configured to: according to the voltage at the output end of the power conversion unit, call a preset load identification reference table to determine the type of the load at the output end of the power conversion unit; according to the type of the load, determine a target output parameter of the power conversion unit corresponding to the type and a target charging curve of the load; and based on the target output parameter and the target charging curve, drive the micro processing unit to control the power conversion unit.

[0012] According to an embodiment of the present application, the hardware component further comprises a first battery, and the software component further comprises a first monitoring unit configured to monitor whether the input power supply stops supplying power, and a third control unit configured to, when the input power supply stops supplying power, drive the micro processing unit to input a first power output by the first battery into the power conversion unit.

[0013] According to an embodiment of the present application, the first monitoring unit is further configured to monitor a first battery capacity of the first battery, and the third control unit is further configured to, when the first battery capacity of the first battery is less than a preset threshold, give an alarm prompt.

[0014] According to an embodiment of the present application, the first monitoring unit is further configured to, during a charging process, monitor a second battery capacity and / or a battery health degree of a second battery at the output end of the power conversion unit, and according to the second battery capacity and / or the battery health degree, determine a current performance of the second battery, and the third control unit is further configured to, according to the current performance of the second battery, determine whether to drive the micro processing unit to perform pulse control or intermittent control on the power conversion unit.

[0015] According to an embodiment of the present application, the communication interface is a wireless communication interface.

[0016] In order to achieve the above object, the embodiment of the first aspect of the present application provides a power management method applied to a portable device, characterized in that the method comprises the following steps: integrating a power conversion unit, a micro-processing unit and a communication interface into a hardware component, wherein the micro-processing unit is connected with the power conversion unit; connecting the communication interface with the micro-processing unit and a software component respectively, wherein the software component is arranged in the portable device; controlling the power conversion unit according to the running data of the hardware component by the micro-processing unit; and controlling the micro-processing unit by the software component.

[0017] By the technical scheme of the present application, the power conversion unit, the micro-processing unit and the communication interface are integrated into one, and the software component is arranged in the portable device to control the micro-processing unit, which has the advantages of high integration, small size and light weight, so that the method can be applied to the portable device and is beneficial to the expansion of the software component.

[0018] Additional aspects and advantages of the present application will be made apparent by the following description and the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 A structural block diagram of a power management system provided by the embodiment of the present application;

[0021] Figure 2 A structural block diagram of another power management system provided by the embodiment of the present application;

[0022] Figure 3 A structural block diagram of still another power management system provided by the embodiment of the present application;

[0023] Figure 4 A working principle diagram of a power management system provided by the embodiment of the present application;

[0024] Figure 5 A hardware component of a power management system provided by the embodiment of the present application;

[0025] Figure 6 A flowchart of a power management method provided by the embodiment of the present application. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example to explain the present application, and are not intended to limit the present application.

[0027] It should be noted that at present, various electronic devices have higher and higher requirements for power managers. The power manager is responsible for power conversion, monitoring, management and control on one hand, and more and more systems also put forward the requirements of flexible optimization management of multiple power energy input and output, adaptive matching of interface parameters, SOC (State of charge) monitoring, terminal display and other functions, especially some portable electronic equipment, which also needs to have the functions of lightweight, small size, emergency measures and the like. Based on such requirements, the present application proposes a lightweight, low-power, flexible management power management system applied to portable devices.

[0028] The power management system and method applied to portable devices of the embodiments of the present application are described below with reference to the accompanying drawings.

[0029] Figure 1 The structural block diagram of the power management system applied to portable devices provided by the embodiments of the present application.

[0030] It should be noted that the portable device in the embodiments of the present application can include wearable devices, such as smart phones.

[0031] As shown in Figure 1 The power management system applied to portable devices 1000 includes a hardware component 100 and a software component 200. The hardware component 100 includes a power conversion unit 110, a micro processing unit 120 and a communication interface 130 integrated in one package.

[0032] The power conversion unit 110 is configured to perform power conversion on the input power. The micro processing unit 120 is connected to the power conversion unit 110, and the micro processing unit 120 is configured to control the power conversion unit 110 according to the running data of the hardware component 100. The communication interface 130 is connected to the micro processing unit 120 and the software component 200 respectively. The software component 200 is configured to control the micro processing unit 120 through the communication interface 130.

[0033] Specifically, in actual application, the power conversion unit 110 charges the load after power conversion (voltage increase or decrease) of the input power, in the process of charging, the software component 200 can drive the micro processing unit 120 to work through the communication interface 130, so that the micro processing unit 120 can detect the running data of the hardware component in real time, and control the power conversion unit 110 according to the detected running data, so that the running data of the hardware component 100 meets the appropriate conditions or normal operation. It can be understood that, under normal circumstances, the input power is the power provided by the external battery outside the power management system 1000.

[0034] Wherein, the power conversion unit 110 can be a DC / DC converter. The micro processing unit 120 can be a DSP (Digital Signal Processing) chip. The communication interface 130 can be a Bluetooth data communication interface.

[0035] In one embodiment, the running data of the hardware component 100 can include at least one of the running voltage, the running current and the communication data.

[0036] Specifically, when the power conversion unit 110 charges the load through the input power, the software component 200 can drive the micro processing unit 120 to detect the running voltage and the running current of the power conversion unit 110 in real time, and judge the running voltage and the running current. After analysis, the corresponding adjustment is output, so as to output the appropriate running voltage and running current to the power conversion unit 110, so that the power conversion unit 110 provides the required power to the external load.

[0037] Meanwhile, the software component can also drive the micro processing unit 120 to detect the communication data corresponding to the communication interface 130 in real time, and determine whether the communication data is normal, if normal, continue to charge, if not normal, the user can be alarmed to prompt the user that the communication is abnormal.

[0038] It should be noted that, in the embodiment of the application, the software component 200 can be compiled by using VS2015 and SMOBILER software platform, and the software framework adopts C+S (client + server) mode. Wherein, the server side is based on windows (an operating system) and SQL (a database management system), and the client side runs based on the running environment of portable electronic equipment. The graphical interface can be used on the client side to monitor the working state of the power management system and manage the running strategy.

[0039] The power management system of the embodiment of the application can be integrated in the range of 80mm / 1kg in combination with the application scene, device size and weight.

[0040] Thus, the system integrates the power conversion unit, the micro-processing unit and the communication interface into one, and controls the micro-processing unit by the software component configured in the portable device, having the advantages of high integration, small size and light weight, so as to be applied not only to the portable device, but also to the expansion of the software component.

[0041] It should be noted that, in order to realize the flexible charging input control, in an embodiment of the present application, as shown in Figure 2 , the software component 200 can include a first control unit 210. The first control unit 210 is configured to drive the micro-processing unit 120 to control the power conversion unit 110 according to the input voltage of the power conversion unit.

[0042] Further, the first control unit 210 can be specifically configured to: call a preset voltage identification table according to the input voltage, to determine the type of the input power supply; determine the target input parameter of the power conversion unit 110 corresponding to the type according to the type of the input power supply; and drive the micro-processing unit to control the power conversion unit based on the target input parameter.

[0043] The preset voltage identification table (recording the input voltage range and the corresponding type of the input power supply) can be set by the manufacturer or the user according to the requirements, and is usually stored in the software component and called when actually used.

[0044] Specifically, the micro-processing unit 120 can detect and acquire the input voltage of the power conversion unit 110 in real time, and can send the input voltage to the first control unit 210, and then the first control unit 210 calls the preset voltage identification table to determine the type of the input power supply according to the range of the input voltage, and then determines the DC / DC input parameter corresponding to the type, i.e., the target input parameter, and then the first control unit 210 drives the micro-processing unit 20 to control the power conversion unit 110 according to the target input parameter, so that the input voltage of the power conversion unit 110 meets the actual input voltage and its change.

[0045] Thus, the flexible charging input control is realized by the software component, the automatic identification of the power supply with different voltage levels is realized, the use of various power supplies is compatible to realize the charging of the rear-end battery, and the charging intelligence is improved.

[0046] It should be noted that, in order to realize the flexible charging output control, in an embodiment of the present application, referring to Figure 2 , the software component 200 can include a second control unit 220. The second control unit 220 is configured to drive the micro-processing unit 120 to control the power conversion unit 110 according to the voltage of the output end of the power conversion unit.

[0047] Further, the second control unit 220 is specifically configured to: according to the voltage at the output end of the power conversion unit, call a preset load identification table to determine the type of load at the output end of the power conversion unit; according to the type of load, determine the target output parameter of the power conversion unit corresponding to the type and the target charging curve of the load; and based on the target output parameter and the target charging curve, drive the micro-processing unit 120 to control the power conversion unit 110.

[0048] The preset load identification table (recording the load voltage range and the type of load corresponding thereto and the charging curve of the load) can be specifically set by the manufacturer or the user according to requirements, and is usually stored in a software component and called when actually used.

[0049] Specifically, the micro-processing unit 120 can detect and acquire the voltage at the output end of the power conversion unit 110 in real time, and can send the voltage to the second control unit 220, and then the second control unit 220 calls the preset load identification table to determine the type of load at the output end of the power conversion unit 110 according to the range of the voltage, and then determines the DC / DC output parameter corresponding to the type, that is, the target output parameter, and simultaneously determines the target charging curve corresponding to the type, and then the second control unit 220 drives the micro-processing unit 20 to control the power conversion unit 110 according to the target input parameter and the target charging curve, so that the output voltage of the power conversion unit 110 meets the output voltage and the battery charging process.

[0050] Therefore, the flexible charging output control is realized by the software component, the adaptive identification of different voltage grade battery packs is realized, the charging of various battery packs is realized, and the charging intelligence is further improved.

[0051] In an embodiment of the present application, as shown in Figure 3 The hardware component 100 can further include a first battery 140, and the software component 200 can include a first monitoring unit 230 and a third control unit 240.

[0052] The first monitoring unit 230 is configured to monitor whether the input power supply stops supplying power, and the third control unit 240 is configured to drive the micro-processing unit 120 to input the first power output by the first battery into the power conversion unit when the input power supply stops supplying power.

[0053] In the embodiment of the present application, the battery of the power management system is referred to as the first battery, and the power output by the first battery is referred to as the first power.

[0054] Specifically, during the charging process, the first monitoring unit 230 of the software component 200 can monitor the input power in real time, and when the input power is monitored to stop supplying power, the third control unit 240 can drive the micro-processing unit 120 to control the power conversion unit 110 to output the first power supplied by the first battery 140 to supply power to the external load, thereby realizing the emergency charging function started by the first battery.

[0055] Further, the first monitoring unit 230 is further used for monitoring the first battery capacity of the first battery 140, and the third control unit 240 is further used for alarming when the first battery capacity of the first battery 140 is less than a preset threshold.

[0056] The preset threshold can be the minimum amount of electricity acceptable to the first battery set by the manufacturer when leaving the factory, for example, it can be 30% of the electricity.

[0057] Specifically, when the first battery is used to charge the external load, the first monitoring unit 230 of the software component can monitor the first battery capacity of the first battery 140 in real time, so that when the first battery capacity of the first battery 140 is less than 30% of the electricity, the third control unit 240 alarms to automatically prompt the user to determine whether to continue forced charging or stop emergency charging.

[0058] Therefore, the software component starts the emergency charging function in the emergency state, ensures the normal power supply to the external load, and also ensures the safety of the battery itself.

[0059] In an embodiment of the present application, the first monitoring unit 230 can also be used to monitor the second battery capacity and / or the battery health degree of the second battery at the output end of the power conversion unit during the charging process, and determine the current performance of the second battery according to the second battery capacity and / or the battery health degree; the third control unit 240 can also be used to determine whether to drive the micro-processing unit to pulse control or intermittent control the power conversion unit according to the current performance of the second battery.

[0060] The second battery can be a lithium battery pack or a single battery.

[0061] Specifically, when the power management system charges the second battery, the first monitoring unit 230 can monitor the second battery capacity and / or the battery health degree of the second battery at the output end of the power conversion unit in real time, and determine the current performance of the second battery according to the second battery capacity and / or the battery health degree, and send the current performance to the third control unit 240, so that the third control unit 240 determines whether to drive the micro-processing unit 120 to pulse control or intermittent control the power conversion unit 110 according to the current performance of the second battery.

[0062] Specifically, when the current performance of the second battery is low or continuously decreases, the third control unit 240 can drive the micro-processing unit 120 to realize the functions of battery performance maintenance and capacity activation through pulse control, intermittent control and other charge and discharge control means.

[0063] Therefore, the performance of the external battery can be monitored and maintained in real time through the software component, so that the charging safety is further improved.

[0064] In order to more clearly describe the power management system of the embodiment of the application, the following will be described in combination with Figure 4 :

[0065] As shown in Figure 4 , generally, the photovoltaic cell or the fuel cell is connected with the input end of the power conversion unit 110 and the output end of the power conversion unit 110 is connected with the external lithium battery, so as to realize the charging of the external lithium battery. Specifically, the power conversion unit 110 converts the input power into a voltage form acceptable by the system, the processor DSP collects current data and voltage data, and then detects, judges and analyzes, and then outputs appropriate voltage and current to the power conversion unit 110, and the conversion circuit connects the external lithium battery to charge the external lithium battery. At the same time, the DSP can also have the functions of power alarm and battery protection, which are realized by software. In this process, the external photovoltaic cell or fuel cell provides the input power, and when the input power stops supplying, that is, the input end is not connected with the battery, the battery of the power management system itself acts as an emergency battery to charge the external lithium battery.

[0066] The software component is configured in the mobile phone, and the monitoring of the hardware component can be realized through the mobile phone app (application), so as to realize the communication and interaction between the mobile phone and the power management system. The software component can also perform photovoltaic cell performance analysis, maximum power generation tracking control and fuel cell operation monitoring, and realize the strategy management of the overall operation dynamic optimal control of the charging system.

[0067] The power management system of the embodiment of the application has the advantages of small size, light weight and portability, the size of the whole prototype is only 8.3cm*5.5cm*2.4cm (length* width*height), and the weight is only 65g. The actual object can be referred to as shown in Figure 5 ; the running power consumption is low, about 10w; and the power management system has advanced functions such as flexible intelligent power management control, SOC state monitoring, wireless communication and intelligent emergency; the hardware has good modularization upgrade setting, and the software has good scalability.

[0068] The application further provides a power management method applied to a portable device.

[0069] As shown in Figure 6As shown, the power management method comprises the following steps:

[0070] S601, integrating the power conversion unit, the micro processing unit and the communication interface into the hardware component, wherein the micro processing unit is connected with the power conversion unit.

[0071] S602, connecting the communication interface with the micro processing unit and the software component respectively, wherein the software component is arranged in the portable device.

[0072] S603, controlling the power conversion unit according to the running data of the hardware component through the micro processing unit.

[0073] S604, controlling the micro processing unit through the software component.

[0074] It should be noted that other specific embodiments of the power management method of the embodiment of the present application can refer to the specific embodiments of the power management system of the above-mentioned embodiments of the present application, and to avoid redundancy, this will not be repeated here.

[0075] The power management method of the embodiment of the present application integrates the power conversion unit, the micro processing unit and the communication interface into one, and controls the micro processing unit by arranging the software component in the portable device, which has the advantages of high integration, small size and light weight, so as to not only be applied to portable devices, but also be conducive to the expansion of the software component.

[0076] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0077] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0078] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of the invention pertain.

[0079] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0080] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any of the following techniques known in the art, or a combination thereof: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0081] Those skilled in the art of the present technology can understand that all or part of the steps carried out by the above-mentioned embodiment method can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or a combination thereof.

[0082] In addition, each functional unit in each embodiment of the present application can be integrated into one processing module, or each unit can exist physically alone, or two or more units can be integrated into one module. The integrated module can be realized in the form of hardware or in the form of a software functional module. When the integrated module is realized in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0083] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A power management system for portable devices, characterized in that, include: Hardware components and software components; The hardware components include: a power conversion unit, a microprocessor unit, and a communication interface integrated into one package; The power conversion unit is used to convert the input power and charge the load after the power conversion. The microprocessor unit is connected to the power conversion unit, and the microprocessor unit is used to control the power conversion unit according to the operating data of the hardware components. The communication interface is connected to the microprocessor unit and the software component respectively; The software component, configured within the portable device, is used to control the microprocessor unit via the communication interface; The software components include: The first control unit is used to drive the microprocessor unit to control the power conversion unit according to the input voltage of the power conversion unit; The first control unit is specifically used for: Based on the input voltage, a preset voltage identification lookup table is invoked to determine the type of input power supply; Based on the type of the input power supply, the target input parameters of the power conversion unit corresponding to the type are determined; the second control unit is used to drive the microprocessor unit to control the power conversion unit according to the voltage at the output terminal of the power conversion unit. The second control unit is specifically used for: Based on the voltage at the output terminal of the power conversion unit, a preset load identification lookup table is invoked to determine the type of load at the output terminal of the power conversion unit; Based on the type of load, determine the target output parameters of the power conversion unit corresponding to the type and the target charging curve of the load; Based on the target output parameters and the target charging curve, the microprocessor unit is driven to control the power conversion unit.

2. The system according to claim 1, characterized in that, The operating data of the hardware component includes at least one of the following: operating voltage, operating current, and communication data.

3. The system according to claim 1, characterized in that, The hardware components also include: a first battery; The software components include: The first monitoring unit is used to monitor whether the input power supply has stopped supplying power; The third control unit is used to drive the microprocessor unit to input the first power output from the first battery into the power conversion unit when the input power supply stops supplying power.

4. The system according to claim 3, characterized in that, The first monitoring unit is further configured to: monitor the first battery capacity of the first battery; The third control unit is further configured to: issue an alarm when the capacity of the first battery is less than a preset threshold.

5. The system according to any one of claims 3-4, characterized in that, The first monitoring unit is further configured to: monitor the second battery capacity and / or battery health of the second battery at the output terminal of the power conversion unit during the charging process, and determine the current performance of the second battery based on the second battery capacity and / or battery health; The third control unit is further configured to: determine, based on the current performance of the second battery, whether to drive the microprocessor unit to perform pulse control or intermittent control on the power conversion unit.

6. The system according to claim 1, characterized in that, The communication interface is a wireless communication interface.

7. A power management method for portable devices, characterized in that, Includes the following steps: The power conversion unit, microprocessor unit, and communication interface are integrated and packaged into a hardware component, wherein the microprocessor unit is connected to the power conversion unit; The communication interface is connected to the microprocessor unit and the software component respectively, wherein the software component is configured inside the portable device; The power conversion unit converts the input power and then charges the load. The microprocessor unit controls the power conversion unit based on the operating data of the hardware components. The microprocessor unit is controlled by the software component, wherein the software component is used to drive the microprocessor unit to control the power conversion unit according to the input voltage of the power conversion unit; The software components include: a first control unit and a second control unit; The first control unit is specifically used for: Based on the input voltage, a preset voltage identification lookup table is invoked to determine the type of input power supply; Based on the type of the input power supply, the target input parameters of the power conversion unit corresponding to the type are determined; the second control unit is used to drive the microprocessor unit to control the power conversion unit according to the voltage at the output terminal of the power conversion unit. The second control unit is specifically used for: Based on the voltage at the output terminal of the power conversion unit, a preset load identification lookup table is invoked to determine the type of load at the output terminal of the power conversion unit; Based on the type of load, determine the target output parameters of the power conversion unit corresponding to the type and the target charging curve of the load; Based on the target output parameters and the target charging curve, the microprocessor unit is driven to control the power conversion unit.

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