Charging circuit, charging method, electronic device, and storage medium

Abstract

A charging circuit, a charging method, an electronic device, a controller, and a storage medium are provided, the charging circuit including a detection module (110) for detecting status information of a charge pump charging system, a charging control module (120) having an input side connected to an output side of the detection module (110) and outputting a control command based on the status information, and a switching module (130) for receiving the control command from the charging control module (120) and switching a charging path of the charge pump charging system.

Description

[Technical Field]

[0001] This application is based on and claims priority from a Chinese patent application bearing application number 202110672804.6 and filing date June 17, 2021, the entire contents of which are incorporated herein by reference.

[0002] TECHNICAL FIELD The present disclosure relates to the technical field of charging, and more particularly to a charging circuit, a charging method, an electronic device, and a storage medium. [Background technology]

[0003] In recent years, smart device users have increasingly shorter charging times. To meet the higher speed charging requirements, charge pump charging circuits have emerged, which use one or more capacitors to charge and discharge, and achieve proportional increase and decrease in voltage and current, with the advantages of large charging current and high charging efficiency.

[0004] Currently, the charging circuit and charging format of a fast charging system equipped with a charge pump charging circuit are fixed, and in various application scenarios, problems such as low charging efficiency and slow charging speed are likely to occur. Summary of the Invention [Problem to be solved by the invention]

[0005] The following is a summary of the subject matter described in detail herein, which is not intended to limit the scope of protection of the claims.

[0006] Embodiments of the present application provide a charging method, an electronic device, a controller, and a storage medium. [Means for solving the problem]

[0007] In a first aspect, an embodiment of the present application provides a charging circuit including: a detection module that detects status information of a charge pump charging system; a charge control module whose input side is connected to the output side of the detection module and outputs a control command based on the status information; and a switching module that receives the control command from the charge control module and switches a charging path of the charge pump charging system.

[0008] In a second aspect, an embodiment of the present application further provides a charging circuit, the charging circuit including: a high-voltage divided charging unit having an input side connected to a charger and an output side for charging a battery pack, the battery pack including at least two batteries connected in series; and a low-voltage divided charging unit having an input side connected to the output side of the high-voltage divided charging unit and an output side for compensation charging at least one battery of the battery pack.

[0009] In a third aspect, an embodiment of the present application further provides a charging system, the charging system including a battery pack including at least two batteries, and the charging circuit according to the first or second aspect, which charges the batteries.

[0010] In a fourth aspect, an embodiment of the present application provides a charging method, including: acquiring status information of a charge pump charging system; and outputting a corresponding control command based on the status information to switch a charging path of the charge pump charging system.

[0011] In a fifth aspect, an embodiment of the present application provides an electronic device, the electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program executing the processor implementing the charging method according to the fourth aspect.

[0012] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium having stored thereon computer-executable instructions that, when executed by a processor, implements the charging method according to the fourth aspect.

[0013] In order to more clearly explain the technical solutions of the embodiments of the present application, the following will briefly describe the drawings necessary for describing the embodiments or related technologies. Obviously, the drawings described below are only some examples of the embodiments of the present application, and those skilled in the art can also obtain other drawings from these drawings without any creative efforts. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is an architecture schematic diagram of a charging circuit according to an embodiment of the present application. [Figure 2] FIG. 1 is an architecture schematic diagram of a charging circuit according to another embodiment of the present application. [Figure 3] FIG. 1 is an architecture schematic diagram of a charging circuit according to another embodiment of the present application. [Figure 4] FIG. 1 is an architecture schematic diagram of a charging circuit according to another embodiment of the present application. [Figure 5] FIG. 1 is an architecture schematic diagram of a charging circuit according to another embodiment of the present application. [Figure 6] 1 is a schematic diagram of the architecture of a charging system according to an embodiment of the present application; [Figure 7] 4 is a flowchart illustrating an operation of a charging system according to an embodiment of the present application. [Figure 8] 2 is a flowchart of a charging method according to an embodiment of the present application. [Figure 9] 4 is a flowchart of a charging method according to another embodiment of the present application. [Figure 10] 4 is a flowchart of a charging method according to another embodiment of the present application. [Figure 11] 4 is a flowchart of a charging method according to another embodiment of the present application. [Figure 12] 4 is a flowchart of a charging method according to another embodiment of the present application. [Figure 13] FIG. 1 is an architecture schematic diagram of a charging circuit according to another embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0015] In the following description, details of specific system architectures, techniques, etc. are presented for illustrative purposes, not for limitation, to fully understand the embodiments of the present application. However, the embodiments of the present application may be implemented in other embodiments without these details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the present application in unnecessary detail.

[0016] It should be noted that while the flowcharts depict a logical order, in some cases the steps shown or described may be performed in an order different from that depicted in the flowcharts. The terms "first," "second," etc. in the specification, claims, and above drawings are used to distinguish between similar objects and are not intended to describe a particular order or sequence.

[0017] Additionally, references to "one embodiment" or "some embodiments" or the like in the specification of embodiments of the present application mean that one or more embodiments of the present application include the particular feature, structure, or characteristic described with reference to the embodiment. Thus, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places throughout this specification do not necessarily refer to the same embodiment and, unless expressly stated otherwise, mean "one or more, but not all, embodiments." The terms "including," "including," "having," and variations thereof mean "including, but not limited to," unless expressly stated otherwise.

[0018] In recent years, smart device users have increasingly shorter charging times. To meet the requirements for faster charging, charge pump charging circuits have emerged, which use one or more capacitors to charge and discharge, achieving proportional increases and decreases in voltage and current, and have the advantages of large charging current and high charging efficiency. In addition, a related technical solution is that the battery pack can use a series double-cell design, that is, the battery pack can be divided into two batteries for simultaneous charging, thereby improving charging efficiency.

[0019] For example, charge pump charging units are mainly divided into two types: high-voltage divided charging units (e.g., 4:2 charging units, 4:1 charging units, 9:3 charging units, 6:3 charging units) and low-voltage divided charging units (e.g., 2:1 charging units, 3:1 charging units). The M:N in an M:N charging unit refers to the ratio of the input and output voltages of the charging unit to the battery voltage. For example, 4:2 indicates that the input voltage of the charging unit is four times the battery voltage and the output voltage is twice the battery voltage.

[0020] High-voltage splitter charging units support a high upper voltage limit, e.g., 20V, and adjust the voltage in small increments, and are typically used to charge two-series cell lithium batteries, while low-voltage splitter charging units support a low upper voltage limit, e.g., 10V, and adjust the voltage in small increments, and are typically used to charge one-series cell lithium batteries.

[0021] There are two main types of charging systems for smart devices:

[0022] One type of battery has a single-cell structure, and is charged using a low-voltage divided charging unit in the fast charging system, which has the advantage that the conduction impedance of the entire charging path is relatively good and the charging efficiency is relatively high.

[0023] The other type of battery has a series double-cell structure, and is charged using a high-voltage divider charging unit in a fast charging system, which has the advantage of a high upper limit on charging power. However, because the battery voltage is high, it cannot directly supply power to the system load and must be subjected to low-voltage divider step-down processing. This process introduces new circuit losses and complicates the charging system architecture.

[0024] Currently, the charging circuit and charging form of a fast charging system equipped with a charge pump charging circuit are fixed, that is, the charging means and circuit design of the charging system of the related technical solutions cannot naturally adapt to a wide range of charger input voltages and a wide range of battery output voltages, and therefore, in various application scenarios, problems such as low charging efficiency and slow charging speed are likely to occur.

[0025] For example, if a low-voltage charger that only supports low-voltage charging is used and connected to a charging system consisting of a high-voltage dual-voltage charging unit and a double-series cell lithium battery, charging cannot be performed using the high-voltage dual-voltage charging unit and can only be performed using another BUCK-BOOST charging unit. This results in reduced efficiency, significant heat generation, and a slow charging speed. Furthermore, if a high-voltage charger that supports high-voltage charging is used and connected to a charging system consisting of a low-voltage dual-voltage charging unit and a single-cell lithium battery, charging can only be performed at low voltage due to the high-voltage charger's backward compatibility. If the charging cable used is not a high-power cable (e.g., a cable that supports a current of 3A), the current cannot be increased, which prevents the total charging power from increasing and the charging speed from reaching an optimal level.

[0026] In view of the above, embodiments of the present application provide a charging circuit, a charging system, a charging method, an electronic device, and a storage medium. The embodiments of the present application detect status information of a charge pump charging system and switch the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to changes in the status of the charging system during charging, and to select a more preferable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0027] The smart terminal may be a portable terminal device or a fixed terminal device. The portable terminal device may be a mobile phone, a tablet computer, a laptop computer, a personal digital assistant, an in-vehicle terminal device, a wearable device, an ultra-mobile personal computer, a netbook, a personal digital assistant, a CPE (Customer Premise Equipment), a UFI (Wi-Fi hotspot equipment), etc. The fixed terminal device may be a personal computer, a television, an automated teller machine, a self-service machine, etc. There is no particular limitation on the implementation means of the present application. The smart terminal includes a battery pack, and the battery pack includes a plurality of cells (batteries). For example, the battery pack may include two cells, three cells, four cells, etc.

[0028] In some embodiments, if a battery pack includes two cells, the high-voltage divided charging unit can be a 4:2 charging unit or a 4:1 charging unit, and the low-voltage divided charging unit can be a 2:1 charging unit. If a battery pack includes three cells, the high-voltage divided charging unit can be a 9:3 charging unit or a 6:3 charging unit, and the low-voltage divided charging unit can be a 3:1 charging unit. Similar analogies can be used for multi-cell scenarios. Note that in an M:N charging unit, M:N indicates the ratio of the input voltage and output voltage of the charging unit to the battery voltage. For example, 4:2 indicates that the input voltage of the charging unit is four times the battery voltage and the output voltage is twice the battery voltage. For convenience of explanation, the following embodiments will only be described with reference to a battery pack including two cells. Situations where the battery pack includes three or four cells are similar, and redundant explanations will be omitted. The following embodiments are further described with reference to the accompanying drawings.

[0029] As shown in FIG. 1, the charging circuit 100 includes a detection module 110 that detects status information of the charge pump charging system, a charging control module 120 whose input side is connected to the output side of the detection module 110 and outputs a control command based on the status information, and a switching module 130 that receives the control command from the charging control module 120 and switches the charging path of the charge pump charging system.

[0030] In some embodiments, the charging circuit 100 may be a circuit built into the smart terminal or an external circuit, for example, the charging circuit 100 may be built into the smart terminal and connected to the external charger 200 via a charging interface (e.g., a Type-C charging interface).

[0031] In some embodiments, the charging circuit 100 is a charge pump charging circuit, which includes a charge pump charging module (e.g., a high-voltage divided charging module, a low-voltage divided charging module, etc.). The charging circuit 100 can be applied to a charge pump charging system. A charge pump charging system is a charging system equipped with a charge pump charging circuit. The charging path of the charge pump charging system is switchable, i.e., the charging path of the charge pump charging system can be switched by switching the charging path of the charge pump charging system. In some embodiments, the charge pump charging system includes a charger, a charging circuit, and a battery pack connected in sequence, and the battery pack includes at least two batteries (e.g., the following embodiment includes two batteries: a first cell Battery1 and a second cell Battery2).

[0032] In some embodiments, the charging circuit 100 of the present application includes a detection module 110, a charging control module 120, and a switching module .

[0033] The detection module 110 detects the status information of the charge pump charging system, such as the charging input voltage, current, cable type, battery pack voltage and charging / discharging current, etc. In some embodiments, when the charger 200 is plugged in, i.e., when a connection between the charger 200 and the charging circuit 100 is established, the detection module 110 is triggered to detect the status information.

[0034] The charging control module 120 has an input connected to the output of the detection module 110 and outputs a control command based on the status information. For example, the charging control module 120 simultaneously provides a control signal to the switching module 130 based on the voltage value reported by the input / output detection module 110. In some embodiments, the charging control module may be implemented in a processor, and the processor may include one or more processing units, and different processing units may be independent devices or integrated into one or more processors.

[0035] The switching module 130 has an input connected to the output of the charge control module 120, receives control commands from the charge control module 120, and switches the charging path of the charge pump charging system. The switching module 130 is connected to the battery pack and charges the battery pack.

[0036] In some embodiments, the charge pump charging system is a charging circuit 100 system including a charge pump charging unit. In contrast to the problem that the charge pump charging system of the related technical solution cannot adapt itself to the wide voltage range of the charger 200 input and the wide voltage range of the battery output, the embodiments of the present application can perform circuit switching according to the state change of the charging system, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0037] For example, in the related technical solution, when a charger 200 that only supports low-voltage charging is used and connected to a charging system consisting of a high-voltage, two-divide charging unit and a double-series cell lithium battery, charging can only be performed using another BUCK-BOOST charging unit. This results in reduced efficiency, significant heat generation, and a slow charging speed. In the embodiment of the present application, the detection module 110 detects the status information of the charge pump charging system. For example, the detected status information is the low-voltage charger P1. The charging control module 120 outputs a control command to control the switching module 130 based on the status information. The switching module 130 receives the control command and switches the charging path of the charge pump charging system. For example, the charging unit switching sub-module 131 can be used to set the charging unit as a low-voltage, two-divide charging unit, and the battery pack switching sub-module 132 can be used to change the series cells to parallel cells. In this case, the charging unit is switched to the low-voltage, two-divide charging mode, thereby achieving high-efficiency two-divide fast charging even when using a charger 200 that only supports low-voltage charging.

[0038] For example, in the related technical solution, when a charger 200 supporting high-voltage charging is used to connect to a charging system consisting of a low-voltage, two-part charging unit and a single-cell lithium battery, charging can only be performed at low voltage due to the backward compatibility of the charger 200. If the charging cable used is not a high-power cable (e.g., a cable supporting a current of 3A), the current cannot be increased, and in this case, the total charging power cannot be increased and the charging speed cannot reach an optimal level. In the embodiment of the present application, the detection module 110 detects the status information of the charge pump charging system and outputs a control command to control the switching module 130 based on the status information, thereby switching the charging mode between low-voltage, two-part and high-voltage, two-part. The basis for the switching control is determined according to the power consumption of the system load. For example, if the power consumption of the system load is low, the battery pack switching submodule 132 may be set to a double-cell serial configuration. In this way, in the high-voltage, two-part configuration, even if the cable current cannot be increased, power can be increased as much as possible for high-voltage charging. When the load is small, the voltage rise rates of the two batteries (cells) are approximately the same, and one battery can be charged for a long time under high voltage charging before it is fully charged. On the other hand, when the system load consumes a lot of power, one battery can continue to be charged under high voltage charging until it is fully charged, and then the battery pack switching sub-module 132 is used to switch to double-cell parallel configuration and continue charging.

[0039] The embodiment of the present application detects the status information of the charge pump charging system and switches the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to the status change of the charging system during charging, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0040] In some embodiments, the status information includes one or more of the following: charger type, charging cable type, power consumption of the load, battery voltage status, and the like.

[0041] In some embodiments, the detection module 110 is communicatively connected to the charger 200 and may obtain the type of charger, and may detect the charging input voltage and current as status information and upload it to the charging control module 120. For example, the detection module 110 may detect that the type of charger is a low-voltage charger P1 or a high-voltage charger P2. In some embodiments, the output voltage of the low-voltage charger P1 is 3V-11V, and the output voltage of the high-voltage charger P2 is 3V-20V. In some embodiments, the detection module 110 and the charging control module 120 may be integrated into one processor to realize the charger type detection function.

[0042] In some embodiments, the types of the charging cable include a low-power charging cable and a high-power charging cable. For example, if the charging cable is a standard Type-C charging cable, the connected Type-C interface has 24 pins, and the detection module 110 may identify the type of the charging cable by reading the information of A5 pin CC1 and B5 pin CC2.

[0043] In some embodiments, the power consumption of the load includes low power consumption and high power consumption. For example, the detection module 110 may compare the detected power consumption with a predetermined power consumption threshold to determine whether the power consumption is low or high. In some embodiments, the detection module may include a power sensor and use the power sensor to test the power consumption of the system.

[0044] In some embodiments, the battery voltage status may be the current battery voltage value or the battery's fully charged or not fully charged state. The detection module 110 may detect the voltage of each battery (cell). In some embodiments, the detection module may include a current / voltage detection sub-module, and may use the current / voltage detection sub-module to test the battery voltage status. In other embodiments, the detection module may directly obtain battery voltage information by connecting to a control chip of a smart terminal (e.g., a mobile phone).

[0045] As shown in FIG. 2 , in some embodiments, the switching module 130 includes one or more of a charging unit switching sub-module 131, whose input side is connected to the output side of the charging control module 120 and switches the connection path of the charging unit based on a control command, and a battery pack switching sub-module 132, whose input side is connected to the output side of the charging control module 120 and switches the battery connection method based on a control command.

[0046] In some embodiments, the charging unit switching sub-module 131 includes a plurality of different types of charging units used for voltage conversion and a plurality of switches. One end of the switch is connected to the charger 200 and the other end is connected to the charging units, or the switch is connected between different types of charging units, or the switch is connected to the charging units and the other end is connected to the battery. The control side of the switch is connected to the output side of the charging control module 120, and switches the connection path of the charging units by switching the on / off state based on a control command from the charging control module 120.

[0047] In some embodiments, the different types of charging units may include components such as a high-voltage two-divide charging unit, a low-voltage two-divide charging unit U1, a high-voltage four-divide unit, and a low-voltage Buck charging unit. In some embodiments, the high-voltage two-divide charging unit, the low-voltage two-divide charging unit U1, and the high-voltage four-divide unit may all be implemented as a charge pump charging chip. The high-voltage two-divide charging unit is a 4:2 charging unit, where the input voltage of the charging unit is four times the battery voltage and the output voltage is twice the battery voltage. The low-voltage two-divide charging unit is a 2:1 charging unit, where the input voltage of the charging unit is twice the battery voltage and the output voltage is one time the battery voltage. The high-voltage four-divide unit is a 4:1 charging unit, where the input voltage of the charging unit is four times the battery voltage and the output voltage is one time the battery voltage. The low-voltage buck charging unit is a charging unit used for normal charging (non-rapid charging). For example, in the case of a non-PPS (Programmable Power Supply) charger 200, charging can be switched to the low-voltage buck charging unit, or charging can be switched to the low-voltage buck charging unit after charging has started or before charging has finished.

[0048] In some embodiments, the battery pack switching sub-module 132 is configured with a series-parallel switching circuit to switch the connection mode of the batteries in the battery pack. In some embodiments, the battery pack switching sub-module 132 switches the connection mode of the batteries (cells) between series connection and parallel connection based on a control command.

[0049] In some embodiments, the switch may be a thyristor, a transistor, a field effect transistor, a silicon controlled rectifier, a relay, or the like.

[0050] 3, 4, and 5, in some embodiments, the multiple different types of charging units include a low-voltage divided charging unit U1 and a high-voltage divided charging unit U2, and the multiple switches include a first switch K1, a second switch K2, a third switch K3, a fourth switch K4, and a fifth switch K5.

[0051] The first switch K1 has one end connected to the charger 200 and the other end connected to the input side of the high-voltage divided charging unit U2. The second switch K2 has one end connected to the output side of the high-voltage divided charging unit U2 and the other end connected to the battery. The third switch K3 is connected between the output side of the high-voltage divided charging unit U2 and the input side of the low-voltage divided charging unit U1. The fourth switch K4 has one end connected to the charger 200 and the other end connected to the input side of the low-voltage divided charging unit U1. The fifth switch K5 has one end connected to the output side of the low-voltage divided charging unit U1 and the other end connected to the battery. The connection paths of the charging units are switched by switching the on / off states of the multiple switches.

[0052] For example, in some embodiments, the charging control module 120 may determine the type of charger based on the status information. If the charger type is a low-voltage charger P1, it outputs a control command to switch the charging path of the charge pump charging system to charging path (1), charging using a low-voltage two-divider charging unit, and the battery connection method is parallel connection. If the charger type is a high-voltage charger P2, it determines the type of charging cable based on the status information. If the charging cable type is a high-power cable, it outputs a control command to switch the charging path of the charge pump charging system to charging path (2), charging using a low-voltage divider charging unit U1, and the battery connection method is parallel connection. If the charging cable type is a low-power cable, it determines the power consumption of the load based on the status information. If the power consumption of the load is low, it outputs a control command to switch the charging path of the charge pump charging system to charging path (3-1) or charging path (3-2). For charging path (3-1), it uses a high-voltage divider charging unit U2 to charge, the battery connection method is series connection, and the low-voltage divider charging unit U1 is used to perform compensation charging of the battery supplying power to the load. For charging path (3-2), charging is performed using the high-voltage voltage divider charging unit U2, the battery connection method is series connection, the battery voltage is determined based on the status information, and the low-voltage voltage divider charging unit U1 is used to compensately charge the battery that supplies power to the load based on the battery voltage. If the charging cable type is a low-power cable, the power consumption of the load is determined based on the status information. If the load power consumption is high, a control command is output to switch the charging path of the charge pump charging system to charging path (4-1) or charging path (4-2). For charging path (4-1), the battery is charged sequentially via the high-voltage voltage divider charging unit U2 and the low-voltage voltage divider charging unit U1, and the battery connection method is parallel connection.Regarding the charging path (4-2), charging is performed using the high-voltage voltage dividing charging unit U2, the battery connection method is series connection, the battery voltage is determined based on the status information, and the battery is charged sequentially through the high-voltage voltage dividing charging unit U2 and the low-voltage voltage dividing charging unit U1 based on the battery voltage, and the battery connection method is parallel connection.

[0053] The idea of ​​the present application will be explained in detail below using three types of charging methods as examples.

[0054] In some embodiments, when a charging system uses a high-voltage two-part voltage charging unit and a double-cell serial configuration for charging, the current of the system load is supplied by the first cell, Battery1. As the battery pack voltage increases, particularly as the system load consumes more power, the voltage of the first cell, Battery1, becomes significantly lower than the voltage of the second cell, Battery2. As a result, the second cell, Battery2, in the battery pack is fully charged before the first cell, Battery1. The charging system of the embodiments of the present application may be optimized in several ways.

[0055] Example 1 As shown in FIG. 3, if the charger 200 is a high-voltage charger P2 and the charging cable used is a low-power cable, such as a 3A cable, the double-cell serial connection can be maintained and charging can be performed using a high-voltage, two-divide charging unit. This has the advantage of increasing charging power. The third switch K3 and the fifth switch K5 are simultaneously turned on, and the low-voltage, two-divide charging unit is used to compensate for charging the first cell Battery1 (the cell that supplies power to the load). This allows the voltages of the first cell Battery1 and the second cell Battery2 to increase as synchronously as possible without being affected by the power consumption of the system load, ensuring an optimal charging rate. The charging mode is shown in FIG. 3, where the first switch K1 is on, the second switch K2 is on, the third switch K3 is on, the fourth switch K4 is off, and the fifth switch K5 is on, connecting the first cell Battery1 and the second cell Battery2 in series. The charger 200, the first switch K1, the high-voltage dividing charging unit U2, the second switch K2, the second cell Battery2, and the first cell Battery1 are connected in series to form a high-voltage charging path. The output side of the high-voltage dividing charging unit passes through the third switch K3, the low-voltage dividing charging unit U1, the fifth switch K5, and the first cell Battery1 to compensately charge the first cell Battery1.

[0056] Example 2 As shown in FIG. 4, if the charger 200 is a low-voltage charger P1 and the charging cable used is a high-power cable, such as a 5-6A cable, it can be switched to a low-voltage, two-part charging unit for charging. Because the input current is not limited by the power of the charging cable, it can be switched to a double-cell parallel configuration. In this case, the first cell Battery1 and the second cell Battery2 are fully connected in parallel, the input current is automatically distributed between the first cell Battery1 and the second cell Battery2, and the voltages of the first cell Battery1 and the second cell Battery2 rise synchronously, ensuring optimal charging power. Because the high-voltage charger P2's backward compatibility allows it to provide a low-voltage output, this charging method can also be applied to the high-voltage charger P2. The charging configuration is shown in FIG. 4, where the first switch K1 is off, the second switch K2 is off, the third switch K3 is off, the fourth switch K4 is on, and the fifth switch K5 is on, and the first cell Battery1 and the second cell Battery2 are connected in parallel. The charger 200, the fourth switch K4, the low-voltage dividing charging unit U1 and the fifth switch K5 are connected in series to form the low-voltage charging circuit 100.

[0057] Example 3 As shown in Figure 5, if the charger 200 is a high-voltage charger P2 and the charging cable used is a low-power cable, such as a 3A cable, the charging configuration can be switched to a series connection of a high-voltage two-divide charging unit and a low-voltage two-divide charging unit, or a charging configuration using a high-voltage four-divide charging unit (not shown), and the battery pack can be switched to a double-cell parallel configuration. Even though the first cell Battery1 and the second cell Battery2 are fully connected in parallel, the high-voltage input can maximize the current flowing into the battery and ensure optimal charging power. The charging configuration is shown in Figure 5, where the first switch K1 is on, the second switch K2 is off, the third switch K3 is on, the fourth switch K4 is off, and the fifth switch K5 is on, and the first cell Battery1 and the second cell Battery2 are connected in parallel. The charger 200, the first switch K1, the high-voltage dividing charging unit U2, the third switch K3, the low-voltage dividing charging unit U1 and the fifth switch K5 are connected in series to form a high-voltage charging path.

[0058] The embodiment of the present application detects the status information of the charge pump charging system and switches the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to the status change of the charging system during charging, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0059] Furthermore, the present embodiment is self-adaptable to a wide range of charger 200 input voltages and a wide range of battery output voltages. For example, charger 200 can support both low and high voltages, and battery cells can be in a parallel state (corresponding to a low-voltage output charging voltage) or a series state (corresponding to a high-voltage output charging voltage).

[0060] 13, the present application further provides a charging circuit. The charging circuit includes a high-voltage divider charging unit U2 and a low-voltage divider charging unit U1. The high-voltage divider charging unit U2 has an input connected to a charger P2 and an output for charging a battery pack including at least two batteries connected in series. The low-voltage divider charging unit U1 has an input connected to the output of the high-voltage divider charging unit U2 and an output for compensation charging at least one battery of the battery pack.

[0061] The battery pack may include at least two cells (batteries), a first cell Battery1 and a second cell Battery2. Obviously, the battery pack may include two cells, three cells, four cells, etc. For convenience of explanation, the battery pack will be described as including only two cells. The same applies to a battery pack including three cells or four cells, and redundant explanations will be omitted.

[0062] As shown in Figure 13, when using the high-voltage divided charging unit U2 and a double-cell serial configuration, the current of the system load is supplied by the first cell Battery1. In this case, as the power consumption of the system load increases, the battery pack voltage rises, and the voltage of the first cell Battery1 becomes significantly lower than the voltage of the second cell Battery2. As a result, the second cell Battery2 in the battery pack is fully charged before the first cell Battery1. Therefore, the high-voltage divided charging unit U2 may be used for charging, and the low-voltage divided charging unit U1 may be used for compensation charging of the battery (first cell Battery1) that supplies power to the load.

[0063] In some embodiments, if the charger P2 is a high-voltage charger P2 and the charging cable used is a low-power cable, such as a 3A cable, the double-cell serial connection can be maintained and a high-voltage split-voltage charging unit (i.e., high-voltage split-voltage charging unit U2) can be used for charging. This has the advantage of increasing charging power. At the same time, the low-voltage split-voltage charging unit can be used for compensation charging of the first cell Battery1 (the cell that supplies power to the load). This allows the voltages of the first cell Battery1 and the second cell Battery2 to increase as synchronously as possible without being affected by the power consumption of the system load, ensuring an optimal charging rate. The charging configuration is shown in FIG. 13, where the first cell Battery1 and the second cell Battery2 are connected in series, and the charger P2, the high-voltage split-voltage charging unit U2, the second cell Battery2, and the first cell Battery1 are connected in series in sequence to form a high-voltage charging path. The output side of the high-voltage two-divide charging unit passes through the low-voltage two-divide charging unit U1 and the first cell Battery1 in sequence to compensate and charge the first cell Battery1, thereby better meeting the user's requirements for high charging speed and high charging efficiency.

[0064] 6, an embodiment of the present application further provides a charging system. The charging system includes a battery pack 300 including at least two batteries and the charging circuit 100 for charging the batteries. For example, the charging circuit 100 is the charging circuit 100 in the embodiment shown in FIG. 1 or FIG. 2.

[0065] In some embodiments, both the charging circuit 100 and the battery pack 300 may be built into the smart terminal.

[0066] In some embodiments, the charging system is a charge pump charging system. The charge pump charging system is a charging system including a charge pump charging circuit, which includes a charge pump charging module (e.g., a high-voltage divided-voltage charging module, a low-voltage divided-voltage charging module, etc.). The charging path of the charge pump charging system is switchable, i.e., the charging path of the charge pump charging system can be switched by switching the charging path of the charge pump charging system. In some embodiments, the charge pump charging system includes a charger 200, a charging circuit 100, and a battery pack 300 connected in sequence, where the battery pack 300 includes at least two batteries (cells). The input side of the detection module 110 in the charging circuit 100 is connected to the output side of the charger 200. The input side of the switching module 110 in the charging circuit 100 is connected to the output side of the charger 200. The output side of the switching module 110 in the charging circuit 100 is connected to the input side of the battery pack.

[0067] The embodiment of the present application detects the status information of the charge pump charging system and switches the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to the status change of the charging system during charging, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0068] In some embodiments, the charging system further includes a charger 200 having an output connected to the input of the charging circuit 100 .

[0069] In some embodiments, the charger 200 may be a PPS (Programmable Power Supply) charger 200. The charger 200 is connected to the charging circuit 100 via a charging cable.

[0070] As shown in FIG. 7, in some embodiments, the operation process of the charging system includes the following steps A101-A406.

[0071] A101: Plug in the charger and read the charger's charging capability. For example, the charging circuit may detect the type of charger through a detection module.

[0072] A102: Determine whether it is a high-voltage charger. In some embodiments, the first type of charger is a low-voltage charger and the second type of charger is a high-voltage charger.

[0073] A103: If the charger type is a high-voltage charger, determine the type of the charging cable through the detection module (determine whether it is a low-power cable or not).

[0074] A203: If the charger type is a low-voltage charger, the charge control module operates the charge switching unit module and the battery pack switching sub-module to switch the charging to a 2:1 charging unit (low-voltage two-part charging unit) and switch the cells to a parallel configuration.

[0075] A104: If the charging cable type is a low-power cable, the detection module determines the power consumption of the load (determines whether the power consumption of the load is large).

[0076] A304: If the charging cable type is a high-power cable, the charging control module operates the charging unit switching sub-module and the battery pack switching sub-module to switch the cells into parallel configuration and switch the charging to a 2:1 unit (low-voltage two-divided charging unit).

[0077] A105: When the load power consumption is large, the charging control module operates the charging unit switching sub-module and the battery pack switching sub-module to switch the cells to parallel configuration and switch the charging to 4:1 unit (high voltage 4-divide charging unit).

[0078] A405: When the load power consumption is small, the charging control module operates the charging unit switching sub-module and the battery pack switching sub-module to switch the cells into a series configuration and switch the charging to a 4:2 unit (high-voltage two-part charging unit).

[0079] A406: The voltage of the first cell (the cell that supplies power to the load) is determined by the detection module, and the first cell is synchronously compensated-charged by the 2:1 charging unit (the low-voltage two-divide charging unit). Step A104 may also be repeatedly performed to dynamically adjust the charging path.

[0080] The embodiment of the present application detects the status information of the charge pump charging system and switches the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to the status change of the charging system during charging, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0081] It should be noted that the system architecture and application scenarios described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and are not intended to limit the technical solutions of the embodiments of the present application. With the evolution of system architecture and the emergence of new application scenarios, the technical solutions of the embodiments of the present application can also be applied to similar technical problems.

[0082] The system architectures shown in Figures 1, 2, or 6 are not intended to limit the scope of the present application, and may include more or fewer elements than those shown, combine some elements, or arrange elements differently.

[0083] In the system architecture shown in FIG. 1, FIG. 2 or FIG. 6, the charging control module may respectively call a charging program stored therein to execute the charging method.

[0084] The charging method according to an embodiment of the present application may be executed in a processor, which may include one or more processing units, and the different processing units may be separate devices or may be integrated into one or more devices.

[0085] Based on the above system architecture, various embodiments of the charging method in the embodiments of the present application will be proposed.

[0086] 8, the charging method includes steps S1100 and S1200. In step S1100, status information of the charge pump charging system is obtained. In some embodiments, the status information includes one or more of the charger type, the charging cable type, the power consumption of the load, and the battery voltage status, etc.

[0087] In some embodiments, the status information may be obtained from a detection module, which may obtain the status information by detecting the charging input voltage, current, cable type, battery pack voltage, and charging / discharging current, etc.

[0088] For example, the detection module may be communicatively connected to the charger and may obtain the type of charger, and may detect the charging input voltage and current as status information and upload it to the charging control module. For example, the detection module may detect whether the charger type is a low-voltage charger or a high-voltage charger. In some embodiments, the output voltage of a low-voltage charger is 3V-11V, and the output voltage of a high-voltage charger is 3V-20V. In some embodiments, the detection module and the charging control module may be integrated into a single processor to realize the charger type detection function. In some embodiments, when a charger is plugged in, i.e., when a connection is established between the charger and the charging circuit, the detection module may be triggered to detect the status information, causing the charging control module to obtain the status information of the charge pump charging system.

[0089] In some embodiments, the types of the charging cable include a low-power charging cable and a high-power charging cable. For example, if the charging cable is a standard Type-C charging cable, the connected Type-C interface has 24 pins, and the detection module may identify the type of the charging cable by reading the information of A5 pin CC1 and B5 pin CC2.

[0090] In some embodiments, the power consumption of the load includes low power consumption and high power consumption. For example, the detection module may compare the detected power consumption with a predetermined power consumption threshold to determine whether the power consumption is low or high. In some embodiments, the detection module may include a power sensor and use the power sensor to test the system power consumption.

[0091] In some embodiments, the battery voltage status may be a current battery voltage value or a fully charged or not fully charged state of the battery. The detection module may detect the voltage of each battery (cell).

[0092] In step S1200, a control command is output based on the state information to switch the charging path of the charge pump charging system.

[0093] The embodiment of the present application detects the status information of the charge pump charging system and switches the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to the status change of the charging system during charging, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0094] In some embodiments, the status information includes one or more of a charger type, a charging cable type, a power consumption of the load, and a battery voltage status.

[0095] Switching the charging path of the charge pump charging system includes switching the connection path of the charging unit and / or switching the connection method of the battery.

[0096] The charger types include low-voltage chargers and high-voltage chargers, the charging cable types include low-power charging cables and high-power charging cables, and the power consumption of the load includes low power consumption and high power consumption.

[0097] The charging unit includes a low-voltage divided charging unit and a high-voltage divided charging unit.

[0098] The battery connection methods include series connection and parallel connection.

[0099] 9, the step of outputting a control command to switch the charging path of the charge pump charging system based on the status information includes steps S1211 to S1212. In step S1211, the type of charger is determined based on the status information. In step S1212, if the type of charger is a low-voltage charger, a control command is output to switch the charging path of the charge pump charging system to charging path (1), charging is performed using a low-voltage divided charging unit, and the battery connection method is parallel connection.

[0100] In some embodiments, the battery pack includes two batteries, and the low-voltage divided charging unit is a low-voltage two-divided charging unit (2:1 charging unit). When the charger type is a low-voltage charger, the parallel-connected batteries are charged by the low-voltage two-divided charging unit to increase the charging current, and the charging current is automatically distributed between the two batteries.

[0101] 10, in some embodiments, the step of outputting a control command to switch the charging path of the charge pump charging system based on the status information includes steps S1221 to S1223. In step S1221, the type of charger is determined based on the status information. In step S1222, if the type of charger is a high-voltage charger, the type of charging cable is determined based on the status information. In step S1223, if the type of charging cable is a high-power cable, a control command is output to switch the charging path of the charge pump charging system to charging path (2), charging is performed using a low-voltage divider charging unit, and the battery connection method is parallel connection.

[0102] In some embodiments, the battery pack includes two batteries, and the low-voltage divided charging unit is a low-voltage two-divided charging unit (2:1 charging unit). If the charger type is a high-voltage charger, execute step S1222 to further determine the type of charging cable. If the charging cable type is a high-power cable, charge the parallel-connected batteries with the low-voltage two-divided charging unit to increase the charging current, and automatically distribute the charging current between the two batteries.

[0103] 11, after determining the type of the charging cable based on the status information, the method further includes steps S1224 and S1225. In step S1224, if the type of the charging cable is a low-power cable, the method determines the power consumption of the load based on the status information. In step S1225, if the power consumption of the load is low, a control command is output to switch the charging path of the charge pump charging system to charging path (3-1) or charging path (3-2).

[0104] For the charging path (3-1), a high-voltage voltage dividing charging unit is used for charging, and the battery connection method is series connection, and a low-voltage voltage dividing charging unit is used for compensation charging of the battery that supplies power to the load.

[0105] For the charging path (3-2), a high-voltage voltage dividing charging unit is used for charging, the battery connection method is series connection, the battery voltage is determined based on the status information, and a low-voltage voltage dividing charging unit is used to compensately charge the battery that supplies power to the load based on the battery voltage.

[0106] In some embodiments, the battery pack includes two batteries, the low-voltage divided charging unit is a low-voltage two-divide charging unit (2:1 charging unit), and the high-voltage divided charging unit is a high-voltage two-divide charging unit (4:2 charging unit). If the charger type is a high-voltage charger and the charging cable type is a low-power cable, step S1224 is executed to further determine the power consumption of the load. If the power consumption of the load is low, the charging path (3-1) is switched to, that is, the series-connected battery is charged by the high-voltage two-divide charging unit, and the low-voltage divided charging unit is used to perform compensation charging on the battery supplying power to the load, thereby improving charging efficiency and speed. Alternatively, the charging path (3-2) is switched to, that is, the series-connected battery is charged by the high-voltage two-divide charging unit, and the battery voltages are detected. If the voltage of the first battery or the second battery meets a first predetermined condition (e.g., less than a predetermined threshold), the low-voltage divided charging unit is used to perform compensation charging on the battery supplying power to the load, thereby improving charging efficiency and speed.

[0107] 12, after determining the type of the charging cable based on the status information, the method further includes steps S1224 and S1226. In step S1224, if the type of the charging cable is a low-power cable, the method determines the power consumption of the load based on the status information. In step S1226, if the power consumption of the load is high, a control command is output to switch the charging path of the charge pump charging system to charging path (4-1) or charging path (4-2).

[0108] Regarding the charging path (4-1), the battery is charged by passing through a high-voltage partial charging unit and a low-voltage partial charging unit in sequence, and the battery is connected in parallel.

[0109] Regarding the charging path (4-2), charging is performed using a high-voltage partial charging unit, the battery connection method is a series connection, the battery voltage is determined based on the status information, and the battery is charged through the high-voltage partial charging unit and the low-voltage partial charging unit in sequence based on the battery voltage, and the battery connection method is a parallel connection.

[0110] In some embodiments, the battery pack includes two batteries, and the low-voltage divider charging unit is a low-voltage two-divider charging unit (2:1 charging unit) and the high-voltage divider charging unit is a high-voltage two-divider charging unit (4:2 charging unit). If the charger type is a high-voltage charger and the charging cable type is a low-power cable, step S1224 is executed to further determine the load's power consumption. If the load's power consumption is high, the charging path (4-1) is switched to, i.e., the battery is charged sequentially through the high-voltage divider charging unit and the low-voltage divider charging unit, and the battery connection method is a parallel connection, thereby improving charging efficiency and speed. Alternatively, the charging path (4-2) is switched to, i.e., the series-connected double cells are first charged by the high-voltage divider charging unit, and the battery voltage is simultaneously detected. If the voltage of the first battery or the second battery meets a second predetermined condition, the battery is switched to be charged sequentially through the high-voltage divider charging unit and the low-voltage divider charging unit, and the battery connection method is switched to a parallel connection. This prevents the voltages of the two batteries from becoming too high, improving charging efficiency and speed. The predetermined condition may be when one battery is fully charged or when the load becomes large and continues for a long time (which can be determined by the battery voltage threshold and the time threshold), etc.

[0111] As shown in FIG. 7, in some embodiments, the operation process of the charging system includes the following steps A101-A406.

[0112] A101: Plug in the charger and read the charger's charging capability. For example, the charging circuit may detect the type of charger through a detection module.

[0113] A102: Determine whether it is a high-voltage charger. In some embodiments, the first type of charger is a low-voltage charger and the second type of charger is a high-voltage charger.

[0114] A103: If the charger type is a high-voltage charger, determine the type of the charging cable through the detection module (determine whether it is a low-power cable or not).

[0115] A203: If the charger type is a low-voltage charger, the charge control module operates the charge switching unit module and the battery pack switching sub-module to switch the charging to a 2:1 charging unit (low-voltage two-part charging unit) and switch the cells to a parallel configuration.

[0116] A104: If the charging cable type is a low-power cable, the detection module determines the power consumption of the load (determines whether the power consumption of the load is large).

[0117] A304: If the charging cable type is a high-power cable, the charging control module operates the charging unit switching sub-module and the battery pack switching sub-module to switch the cells into parallel configuration and switch the charging to a 2:1 unit (low-voltage two-divided charging unit).

[0118] A105: When the load power consumption is large, the charging control module operates the charging unit switching sub-module and the battery pack switching sub-module to switch the cells to parallel configuration and switch the charging to 4:1 unit (high voltage 4-divide charging unit).

[0119] A405: When the load power consumption is small, the charging control module operates the charging unit switching sub-module and the battery pack switching sub-module to switch the cells into a series configuration and switch the charging to a 4:2 unit (high-voltage two-part charging unit).

[0120] A406: The voltage of the first cell (the cell that supplies power to the load) is determined by the detection module, and the first cell is synchronously compensated-charged by the 2:1 charging unit (the low-voltage two-divide charging unit). Step A104 may also be repeatedly performed to dynamically adjust the charging path.

[0121] The embodiment of the present application detects the status information of the charge pump charging system and switches the charging path of the charge pump charging system based on the status information, thereby enabling the charging system to perform circuit switching according to the status change of the charging system during charging, and select a more suitable charging path and charging mode to complete charging, thereby better meeting user requirements for high charging speed and high charging efficiency.

[0122] An embodiment of the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and which implements the charging method when the processor executes the computer program.

[0123] As a non-transitory computer-readable storage medium, the memory can store non-transitory software programs and non-transitory computer-executable programs. The memory may also include high-speed random access memory and may further include non-transitory memory, such as at least one disk memory device, flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory may include memory located remotely from the processor, and these remote memories may be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0124] The electronic device in this embodiment may be used as an electronic device in the system architecture of the embodiment shown in FIG. 1, FIG. 2, or FIG. 6. The electronic device in this embodiment may also execute the charging method in the embodiment shown in FIG. 3 or FIG. 10. That is, the electronic device in this embodiment, the electronic device in the system architecture of the embodiment shown in FIG. 1, FIG. 2, or FIG. 6, and the charging method in the embodiment shown in FIG. 3 or FIG. 10 all belong to the same inventive idea. Therefore, these embodiments have the same realization principles and technical effects, and redundant explanations will be omitted here.

[0125] The non-transitory software programs and instructions required to realize the charging methods of the above embodiments are stored in a memory and, when executed by a processor, perform the charging methods of the above embodiments, for example, steps S1100 to S1200 of the method in Figure 8, steps S1100 to S1212 of the method in Figure 9, steps S1100 to S1223 of the method in Figure 10, steps S1100 to S1225 of the method in Figure 11, and steps S1100 to S1226 of the method in Figure 12, as described above.

[0126] Furthermore, an embodiment of the present application further provides a computer-readable storage medium having computer-executable instructions stored therein for executing the charging method.

[0127] In some embodiments, the computer-readable storage medium has computer-executable instructions stored thereon that, when executed by a processor or controller, such as a processor in the diagnostic analysis system 100 embodiment, cause the processor to perform the charging methods of the embodiments, such as steps S1100-S1200 of the method in FIG. 8, steps S1100-S1212 of the method in FIG. 9, steps S1100-S1223 of the method in FIG. 10, steps S1100-S1225 of the method in FIG. 11, and steps S1100-S1226 of the method in FIG. 12.

[0128] A first aspect of an embodiment of the present application provides a charging circuit. The charging circuit includes: a detection module for detecting status information of a charge pump charging system; a charging control module, whose input is connected to the output of the detection module and outputs a corresponding control command based on the status information; and a switching module that receives the control command from the charging control module and switches the charging path of the charge pump charging system. By detecting the status information of the charge pump charging system and switching the charging path of the charge pump charging system based on the status information, the embodiment of the present application enables the charging system to perform circuit switching in response to changes in the status of the charging system during charging, and to select a more preferred charging path and charging mode to complete charging. This better meets user requirements for high charging speed and high charging efficiency.

[0129] All or part of the steps in the methods and systems disclosed above may be implemented as software, firmware, hardware, or any suitable combination thereof. Some or all of the physical components may be implemented as software executed by a processor such as a central processor, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit such as an application-specific integrated circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (e.g., computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or any other medium that can be used to store the desired information and that can be accessed by a computer. Additionally, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism and may include any information delivery media.

[0130] Although several embodiments of the examples of the present application have been specifically described above, the examples of the present application are not limited to the above-described embodiments, and a person skilled in the art may make various equivalent modifications and substitutions without departing from the scope of the examples of the present application, and all of these equivalent modifications and substitutions are included in the scope of the claims of the examples of the present application.

Claims

1. A charging circuit, a detection module for detecting status information of the charge pump charging system, the status information including a charger type and a charging cable type; a charging control module having an input connected to an output of the detection module and outputting a control command based on the status information, wherein the outputting of the control command based on the status information by the charging control module includes: determining a type of the charger based on the status information; if the type of the charger is a high-voltage charger, determining a type of the charging cable based on the status information; and if the type of the charging cable is a high-power cable, outputting a control command by the charging control module; a switching module that receives a control command from a charging control module and switches a charging path of the charge pump charging system, where switching the charging path of the charge pump charging system includes switching to charge using a low-voltage divider charging unit and switching the battery connection method to a parallel connection.

2. The status information is The circuit of claim 1 , further comprising one or more of a power consumption of a load and a battery voltage status.

3. The switching module includes: a charging unit switching submodule that switches the connection path of the charging unit so that the low-voltage dividing charging unit is used for charging based on the control command; a battery pack switching sub-module that switches the battery connection mode so that the battery connection mode is parallel connection based on the control command.

4. The charging unit switching sub-module: a plurality of different types of charging units used for voltage conversion; a plurality of switches; The switch has one end connected to a charger and the other end connected to a charging unit, or the switch is connected between different types of charging units, or the switch has one end connected to a charging unit and the other end connected to the battery; The circuit according to claim 3 , wherein the switch switches between on and off states based on a control command from a charging control module to switch the connection path of the charging unit.

5. The plurality of different types of charging units include a low-voltage divided charging unit and a high-voltage divided charging unit, and the plurality of switches include a first switch, a second switch, a third switch, a fourth switch and a fifth switch; 5. The circuit of claim 4, wherein the first switch has one end connected to a charger and the other end connected to the input side of the high-voltage divided charging unit, the second switch has one end connected to the output side of the high-voltage divided charging unit and the other end connected to the battery, the third switch is connected between the output side of the high-voltage divided charging unit and the input side of the low-voltage divided charging unit, the fourth switch has one end connected to a charger and the other end connected to the input side of the low-voltage divided charging unit, and the fifth switch has one end connected to the output side of the low-voltage divided charging unit and the other end connected to the battery.

6. A charging circuit, a detection module for detecting status information of the charge pump charging system, the status information including a type of charger; a charge control module whose input side is connected to the output side of the detection module and which outputs a control command based on the status information, wherein the charge control module outputting a control command based on the status information includes the charge control module determining the type of the charger based on the status information, and when the type of the charger is a low-voltage charger, the charge control module outputs a control command; a switching module that receives a control command from a charging control module and switches a charging path of the charge pump charging system, where switching the charging path of the charge pump charging system includes switching to charge using a low-voltage divider charging unit and switching the battery connection method to a parallel connection.

7. A charging method, comprising: obtaining status information of the charge pump charging system, the status information including a type of charger; outputting a control command to switch a charging path of the charge pump charging system based on the state information, wherein the switching of the charging path of the charge pump charging system includes switching a connection path of a charging unit and switching a connection method of a battery; The step of outputting a control command based on the state information to switch the charging path of the charge pump charging system includes: determining the type of the charger based on the status information; If the charger type is a low-voltage charger, output a control command to change the charging path of the charge pump charging system: charging using a low-voltage divided charging unit and switching the connection mode of the batteries to be parallel connection.

8. A charging method, comprising: obtaining status information of the charge pump charging system, the status information including a charger type and a charging cable type; outputting a control command to switch a charging path of the charge pump charging system based on the state information, wherein the switching of the charging path of the charge pump charging system includes switching a connection path of a charging unit and switching a connection method of a battery; The step of outputting a control command based on the state information to switch the charging path of the charge pump charging system includes: determining the type of the charger based on the status information; If the type of the charger is a high-voltage charger, determining the type of the charging cable based on the status information; If the type of the charging cable is a high-power cable, output a control command to change the charging path of the charge pump charging system: charging using a low-voltage divided charging unit and switching the connection mode of the batteries to be parallel connection.

9. The method of claim 8 , wherein the status information further includes one or more of a power consumption of a load and a battery voltage status.

10. After the step of determining a type of the charging cable based on the status information, If the type of the charging cable is a low-power cable, determining a power consumption of a load based on the status information; When the power consumption of the load is low, output a control command to control the charging path of the charge pump charging system; Charging is performed using a high-voltage dividing charging unit, and the battery is connected in series; switching to compensation charging of the battery powering a load using a low voltage divider charging unit; Or, Charging is performed using a high-voltage dividing charging unit, and the battery is connected in series; determining a battery voltage based on the status information; 10. The method of claim 9, further comprising: switching to compensate charging the battery powering a load using a low voltage divider charging unit based on the battery voltage.

11. After the step of determining a type of the charging cable based on the status information, If the type of the charging cable is a low-power cable, determining a power consumption of a load based on the status information; When the power consumption of the load is high, output a control command to change the charging path of the charge pump charging system; Charging the battery through a high-voltage divided charging unit and a low-voltage divided charging unit in sequence, and switching the battery connection mode to parallel connection; Or, Charging is performed using a high-voltage dividing charging unit, and the battery is connected in series; determining a battery voltage based on the status information; 10. The method of claim 9, further comprising: charging the battery through a high-voltage voltage dividing charging unit and a low-voltage voltage dividing charging unit in sequence according to the battery voltage, and switching the battery connection mode to be parallel connection.

12. An electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the electronic device realizes the charging method according to any one of claims 7 to 11.

13. A computer-readable storage medium having stored thereon computer-executable instructions, the computer-executable instructions implementing the charging method according to any one of claims 7 to 11 when executed by a processor.

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