Power supply circuit, power supply method, and electronic device

Abstract

The present application relates to the technical field of terminals, and provides a power supply circuit, a power supply method, and an electronic device. The power supply circuit comprises: at least one battery, a first switch unit, a control unit, and a trigger unit. The at least one battery is used for supplying power to a power utilization module. The first switch unit is used for controlling connection between the at least one battery and the power utilization module, or for controlling disconnection between the at least one battery and the power utilization module. The control unit is used for, when the power level of the at least one battery satisfies a first preset condition, controlling the first switch unit to disconnect the connection between the at least one battery and the power utilization module. When a user operation is detected, the trigger unit or the control unit controls the first switch unit to connect the at least one battery to the power utilization module. In this way, when the power level is low, power supply to the power utilization module is interrupted, and the power supply is restored after the user operation, which helps to extend the usage duration of the electronic device.

Description

Power supply circuits, power supply methods and electronic equipment

[0001] This application claims priority to Chinese Patent Application No. 202411750966.7, filed on November 29, 2024, entitled "Power Supply Circuit, Power Supply Method and Electronic Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of terminal technology, and in particular to a power supply circuit, power supply method, and electronic device. Background Technology

[0003] Currently, electronic devices such as mobile phones, tablets, and smart door locks are all equipped with batteries for user convenience. Some electronic devices have multiple batteries to extend their usage time.

[0004] However, the short usage time of electronic devices may cause inconvenience to users. Summary of the Invention

[0005] This application provides a power supply circuit, power supply method, and electronic device, which helps to extend the service life of electronic devices.

[0006] In a first aspect, embodiments of this application provide a power supply circuit. The power supply circuit includes: at least one battery, a first switching unit, a control unit, and a triggering unit; at least one battery for supplying power to a power-consuming module; the first switching unit for controlling the connection between the at least one battery and the power-consuming module, or for controlling the disconnection of the connection between the at least one battery and the power-consuming module; the control unit for controlling the first switching unit to disconnect the connection between the at least one battery and the power-consuming module when the power level of the at least one battery meets a first preset condition; and when a user operation is detected, the triggering unit or the control unit is further used to control the first switching unit to connect the at least one battery to the power-consuming module.

[0007] At least one battery can be the battery in the power supply unit described below. The first switching unit can correspond to any of the switching units shown in Figures 3 to 4C described below. The control unit can correspond to any of the control units described below. The triggering unit can correspond to any of the triggering units described below. The power module can be any module, for example, a module for implementing an unlocking function or a module for implementing other functions. The power module can also be referred to as a product module, a load, etc. The first battery and the second battery can correspond to the batteries in the power supply unit described below.

[0008] User operations are used to instruct the use of the power module. Examples include pressing a button, detecting the connection of a charging device (e.g., plugging a charging device into an interface), and detecting operations indicating power consumption (e.g., bringing a wireless charging device close to the power supply circuit). This application does not limit the specific type of user operation.

[0009] In this way, power supply to the power module can be interrupted when the battery is low, reducing power loss. Furthermore, power supply to the power module can be restored after user intervention. Electronic devices are equipped with an emergency mode for using the power module, minimizing inconvenience caused by module unavailability.

[0010] In one possible implementation, upon detecting a user operation, the control unit is specifically configured to transmit a control signal to the first switching unit; upon receiving the control signal, the first switching unit connects at least one battery to the power module; or, the triggering unit is specifically configured to, upon detecting a user operation, trigger the first switching unit to close, thereby connecting at least one battery to the power module.

[0011] The first switching unit can be triggered by software or hardware, without specific limitations here. Thus, the first switching unit can be controlled by either the control unit or the triggering unit. When the first switching unit is controlled by the triggering unit, the power supply to the control unit can also be interrupted, further reducing power consumption.

[0012] In one possible implementation, a triggering unit is used to transmit a first signal indicating that a user operation has been detected to a control unit in response to a user operation; the control unit is specifically used to transmit a control signal to a first switching unit after receiving the first signal.

[0013] In one possible implementation, the first switching unit includes: a first switching transistor; the triggering unit includes: an interface and / or a coil; the user operation includes: connecting the charging device to the interface, and / or bringing the wireless charging device close to the power supply circuit; the triggering unit is specifically used to transmit the voltage at the interface to the control terminal of the first switching transistor; when the voltage at the interface is greater than a preset voltage, the first switching transistor is turned on, so that at least one battery is connected to the power module; and / or, the triggering unit is specifically used to couple magnetic field energy through the coil; when the magnetic field energy coupled by the triggering unit is greater than a preset energy, the first switching transistor is turned on, so that at least one battery is connected to the power module.

[0014] In this way, the first switching unit is controlled by the trigger unit, eliminating the need for a control unit to control it. Therefore, the control unit can enter sleep mode or shut down after the power module is powered off, further reducing energy consumption. Furthermore, the switching transistor allows for control over whether power is supplied to the power module. The control method is simple and easy to implement.

[0015] In one possible implementation, after the control unit controls the first switching unit to disconnect at least one battery from the power module, the control unit is in a power-off state or a sleep state.

[0016] The control unit can go into hibernation or shut down after the power module is powered off, further reducing energy consumption and extending battery life.

[0017] In one possible implementation, the first preset condition includes: the charge of at least one battery is less than or equal to a preset charge.

[0018] The first preset condition can correspond to preset condition A below. The preset battery level can correspond to the preset value below. The preset battery level can be 10% of the battery level of at least one battery when fully charged, 5% of the battery level of at least one battery when fully charged, etc., without specific limitations here.

[0019] In one possible implementation, at least one battery includes: a first battery and a second battery; a power transfer path is provided between the first battery and the second battery; and a control unit is further configured to control the connection of the power transfer path when the first battery and the second battery meet a second preset condition, so that the first battery transfers power to the second battery.

[0020] In this way, when the second preset condition is met, power transfer can be performed to increase the power of the second battery, thereby extending the power supply time of the second battery to the power module and increasing the usage time of the power module.

[0021] In one possible implementation, the second preset condition includes: the charge of the first battery is less than or equal to a first value, and / or, the charge of the second battery is less than or equal to a second value.

[0022] The first value can be 10% of the first battery's charge when fully charged, 5% of its charge when fully charged, or any other value. The second value can be 10% of the second battery's charge when fully charged, 5% of its charge when fully charged, or any other value. The first and second values ​​can be the same or different; no specific limitation is made here. The first value can correspond to preset value A below, and the second value can also correspond to preset value B below.

[0023] In this way, when the first battery has a low power level, the second battery has a low power level, or both batteries have low power levels, the first battery can transfer power to increase the power level of the second battery, thereby extending the power supply time of the second battery to the power module and increasing the usage time of the power module.

[0024] In one possible implementation, the first value is the minimum amount of electricity required for the first battery to supply power to the power module, and the second value is the minimum amount of electricity required for the second battery to supply power to the power module.

[0025] In this way, when neither battery can supply power to the power module, power is transferred, increasing the power of the second battery and extending the time the second battery supplies power to the power module.

[0026] In one possible implementation, the control unit is also used to control the first switching unit to maintain the connection between at least one battery and the power module when the first battery transfers power to the second battery.

[0027] In this way, power can be transferred first, and then the power supply to the power module can be interrupted.

[0028] In one possible implementation, the second preset condition includes: the first preset condition.

[0029] In this way, the power supply to the power module can be interrupted first and then the power can be transferred, or the power supply to the power module and the power can be interrupted and transferred simultaneously.

[0030] In one possible implementation, the power transfer path includes: a second switch; the second switch for controlling the connection between the first battery and the second battery; and a control unit, specifically used to control the second switch to conduct when the first battery and the second battery meet a second preset condition, so that the first battery and the second battery are connected.

[0031] In this way, controlling the connection or disconnection of the power transfer path through the switching unit is simple and easy to implement.

[0032] In one possible implementation, the control unit is further configured to control the power transfer path to disconnect the connection between the first battery and the second battery when the first battery and the second battery meet a third preset condition; the third preset condition includes: the power of the first battery is less than a third value, the power of the second battery is greater than or equal to a fourth value, and a charging device is detected.

[0033] The third value can correspond to the fixed value A below, and the fourth value can correspond to the fixed value B below.

[0034] In this way, the power transfer can be terminated when the first battery's charge is insufficient to charge the second battery; the power transfer can be terminated when the second battery reaches a certain charge level; and the power transfer can be terminated when a charging device is connected.

[0035] In one possible implementation, the power supply circuit includes multiple batteries, comprising at least one battery and at least another battery.

[0036] Secondly, embodiments of this application provide a control module, which is used to control a first switching unit to disconnect the connection between at least one battery and the power consumption module when the power of at least one battery meets a first preset condition.

[0037] In one possible implementation, upon detecting user interaction, the control unit is also configured to control the first switching unit to connect at least one battery to the power module.

[0038] In one possible implementation, upon detecting a user operation, the control unit, specifically configured to transmit a control signal to the first switching unit; the control signal is used to instruct at least one battery to be connected to the power module.

[0039] In one possible implementation, the control unit is specifically configured to receive a first signal from the triggering unit indicating that a user operation has been detected; the control unit is specifically configured to transmit a control signal to the first switching unit after receiving the first signal.

[0040] In one possible implementation, after the control unit controls the first switching unit to disconnect at least one battery from the power module, the control unit is in a power-off state or a sleep state.

[0041] In one possible implementation, the first preset condition includes: the charge of at least one battery is less than or equal to a preset charge.

[0042] In one possible implementation, at least one battery includes: a first battery and a second battery; and a control unit, which is further configured to control the connection of the power transfer path between the first battery and the second battery when the first battery and the second battery meet a second preset condition, so that the first battery transfers power to the second battery.

[0043] In one possible implementation, the second preset condition includes: the charge of the first battery is less than or equal to a first value, and / or, the charge of the second battery is less than or equal to a second value.

[0044] In one possible implementation, the first value is the minimum amount of electricity required for the first battery to supply power to the power module, and the second value is the minimum amount of electricity required for the second battery to supply power to the power module.

[0045] In one possible implementation, the control unit is also used to control the first switching unit to maintain the connection between at least one battery and the power module when the first battery transfers power to the second battery.

[0046] In one possible implementation, the second preset condition includes: the first preset condition.

[0047] In one possible implementation, the power transfer path includes: a second switch; and a control unit, specifically configured to control the second switch to conduct when the first battery and the second battery meet a second preset condition, thereby connecting the first battery and the second battery.

[0048] In one possible implementation, the control unit is further configured to control the power transfer path to disconnect the connection between the first battery and the second battery when the first battery and the second battery meet a third preset condition; the third preset condition includes: the power of the first battery is less than a third value, the power of the second battery is greater than or equal to a fourth value, and a charging device is detected.

[0049] Thirdly, embodiments of this application provide a power supply method that can be applied to the power supply circuit described in the first aspect or any possible implementation of the first aspect. The method includes: when the power of at least one battery meets a first preset condition, a control unit controls a first switching unit to disconnect the connection between at least one battery and the power consumption module; and when a user operation is detected, a triggering unit or a control unit controls the first switching unit to connect at least one battery to the power consumption module.

[0050] In one possible implementation, when the first battery and the second battery meet the second preset conditions, the control unit controls the power transfer path to connect, so that the first battery transfers power to the second battery.

[0051] Fourthly, embodiments of this application provide an electronic device, which includes: a power module, a power supply circuit described in the first aspect or any possible implementation of the first aspect; and a power supply circuit for supplying power to the power module.

[0052] It should be understood that the second to fourth aspects of this application correspond to the technical solutions of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0053] Figure 1 is a schematic diagram of the structure of an electronic device in a possible design;

[0054] Figure 2 is a schematic diagram of another possible electronic device design;

[0055] Figure 3 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0056] Figure 4A is a schematic diagram of a switching unit provided in an embodiment of this application;

[0057] Figure 4B is a schematic diagram of another switching unit provided in an embodiment of this application;

[0058] Figure 4C is a schematic diagram of another switching unit provided in an embodiment of this application;

[0059] Figure 5A is a schematic diagram of a circuit for power supply recovery triggered by a button, provided in an embodiment of this application;

[0060] Figure 5B is a schematic diagram of a coil-triggered power supply recovery circuit provided in an embodiment of this application;

[0061] Figure 5C is a schematic diagram of an interface-triggered power restoration circuit provided in an embodiment of this application;

[0062] Figure 5D is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0063] Figure 6 is a schematic diagram of another electronic device provided in an embodiment of this application;

[0064] Figure 7A is a schematic diagram of a power transfer module provided in an embodiment of this application;

[0065] Figure 7B is a schematic diagram of the structure of a voltage adjustment module A provided in an embodiment of this application;

[0066] Figure 7C is a schematic diagram of another voltage adjustment module A provided in an embodiment of this application;

[0067] Figure 7D is a schematic diagram of a power transfer module provided in an embodiment of this application;

[0068] Figure 8 is a schematic diagram of another electronic device provided in an embodiment of this application;

[0069] Figure 9 is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0070] Figure 10 is a schematic diagram of the structure of an electronic device corresponding to multiple power transfer modules provided in the embodiments of this application;

[0071] Figure 11 is a schematic diagram of another electronic device corresponding to the multiple power transfer modules provided in the embodiments of this application;

[0072] Figure 12 is a flowchart illustrating a control method provided in an embodiment of this application. Detailed Implementation

[0073] To facilitate understanding, the relevant terms and concepts involved in the embodiments of this application will be introduced below:

[0074] 1. Power off state

[0075] A power outage can be understood as a state where the power supply to a device or system is completely turned off. In a power outage state, all functions and components of the device no longer receive power, causing the device to be unable to perform any operations or processing tasks. Typically, a power outage is used when the device will not be used for an extended period to ensure maximum energy conservation. After entering a power outage state, the device may require a physical switch or button to restart and resume normal operation.

[0076] 2. Dormant state

[0077] Hibernation is a low-power operating mode in which a device suspends most functions but maintains power to certain critical components for a quick return to normal operation. Hibernation is typically used for short periods of inactivity to conserve energy while still responding quickly to user wake-up requests. When entering hibernation, the device may save its current operating state and data so that it can continue processing unfinished tasks upon waking.

[0078] 3. Electronic equipment

[0079] The electronic devices in this application embodiment may include battery-powered handheld devices, vehicle-mounted devices, etc. For example, some electronic devices include: smart locks, mobile phones, tablets, PDAs, laptops, mobile internet devices (MIDs), wearable devices (e.g., smartwatches, smart glasses, smart bracelets, or smart jewelry), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, and the Internet of Things (IoT). Terminal devices in IoT systems, terminal devices in 5G networks, or terminal devices in future public land mobile networks (PLMNs) are not limited to this category in the embodiments of this application.

[0080] The electronic devices in the embodiments of this application may also be referred to as: terminal equipment, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.

[0081] In the embodiments of the present application, an electronic device or each network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also known as main memory). The operating system can be any one or more computer operating systems that implement service processing through processes. For example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, an instant messaging software, etc.

[0082] 4. Other terms

[0083] In the embodiments of the present application, words such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. For example, the first value and the second value are only used to distinguish different values, and do not limit their order. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences.

[0084] It should be noted that in the embodiments of the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions.确切而言,使用“示例性地”或者“例如”等词旨在以具体方式呈现相关概念。本申请实施例中是以等于实现一种判断情况为例进行说明的,等于的情况也可以对应于另一种判断情况。此处不做具体限定。In fact, the use of words such as "exemplarily" or "for example" aims to present relevant concepts in a specific manner. In the embodiments of the present application, an example of equal to achieving a judgment situation is used for illustration, and the equal situation can also correspond to another judgment situation. No specific limitation is made here.

[0085] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one (item)" or its similar expression refers to any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple.

[0086] Currently, electronic devices such as mobile phones, tablets, and smart locks can be powered by batteries. However, these devices may become unusable due to insufficient battery power, causing inconvenience to users. For example, taking a smart lock as an example, if the battery is low, the smart lock cannot control the door to open, making it impossible for the user to open their door.

[0087] In some scenarios, when the battery power of an electronic device is low, it may prompt the user to replace the battery or charge the electronic device in various ways, such as voice, text, or flashing breathing light.

[0088] However, users may fail to replace the battery or charge the electronic device for various reasons, resulting in insufficient battery power and rendering the device unusable. These reasons may include: not using the electronic product for an extended period and thus not noticing the prompt, ignoring the prompt, or forgetting about the prompt due to other commitments, etc., without specific limitations here.

[0089] As an example, Figure 1 is a schematic diagram of the structure of an electronic device in a possible design. As shown in Figure 1, the electronic device includes a battery 101 and a product module 102.

[0090] Battery 101 powers product module 102 to enable its corresponding functions. Taking a smart door lock as an example, product module 102 can unlock or lock the door.

[0091] As shown in Figure 1, the electronic device can be powered by a single battery and will not function after it shuts down due to low battery. The electronic device can be used if the user charges battery 101 or replaces it with a fully charged battery. If the user cannot charge or replace battery 101, the electronic device will not function.

[0092] For example, Figure 2 is a schematic diagram of another possible electronic device design. As shown in Figure 2, the electronic device includes: battery 201, battery 202, and product module 203. Specifically, battery 201 and battery 202 can be connected to different ports of product module 203 (as shown in Figure 2a); battery 201 and battery 202 can also be connected to the same port of product module 203 (as shown in Figure 2b).

[0093] Both batteries 201 and 202 are used to power product module 203 to enable the corresponding functions of product module 203. In this way, multiple batteries can power product module 203 in the electronic device, thereby extending the usage time (also known as battery life) of the electronic device and reducing the situation where the electronic device cannot be used due to insufficient power.

[0094] However, the electronic device cannot be used after shutting down due to low battery. The electronic device can be used if the user charges battery 201 or replaces battery 201 with a fully charged battery. If the user cannot charge battery 201 or replace battery 201, the electronic device will not be usable.

[0095] In view of this, embodiments of this application provide a power supply circuit, a power supply method, and an electronic device. The electronic device can control the power supply unit to stop supplying power to the product module when the power supply unit's battery level is low, thereby reducing the power consumption of the electronic device. Upon receiving a user operation, the power supply unit resumes supplying power to the product module, thus enabling the product module to function. This provides users with an emergency solution for using the product module, reducing inconvenience caused by the electronic device's unavailability.

[0096] User operations can include pressing a button, detecting a connected charging device, or indicating an action to draw power. This application does not limit the specific type of user operation.

[0097] In some embodiments, the power supply unit of the power supply circuit includes at least two batteries and a power transfer path disposed between the batteries. When the power supply unit's power level is low, the power supply circuit can transfer power through this power transfer path, thereby increasing the power level of one of the batteries. In this way, the electronic device can continue to power the product module using the battery with the increased power level, thus enabling the product module to function and extending the usage time of the electronic device.

[0098] The technical solution of this application and how it solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be implemented independently or in combination with each other. Similar or identical concepts or processes may not be described again in some embodiments.

[0099] For example, Figure 3 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. As shown in Figure 3, the electronic device includes: a power supply unit 301, a switch unit 302, a power consumption module 303, a control unit 304, and a trigger unit 305. The output terminal of the power supply unit 301 is connected to the input terminal of the switch unit 302, and the output terminal of the switch unit 302 is connected to the power consumption module 303; the switch unit 302 is controlled by the control unit 304 and / or the trigger unit 305.

[0100] In this embodiment, the power supply unit 301 supplies power to the power consumption module 303 via the switching unit 302. The power supply unit 301 may include one or more batteries. The batteries can be of any type, such as rechargeable batteries (also called secondary batteries) and non-rechargeable batteries (also called primary batteries). It should be understood that rechargeable batteries may include rechargeable lithium batteries (e.g., lithium-ion batteries), lead-acid batteries, nickel-metal hydride batteries, lithium polymer batteries, and nickel-cadmium batteries. Non-rechargeable batteries may include alkaline batteries and zinc-carbon batteries. This embodiment does not specifically limit the number or type of batteries included in the power supply unit 301.

[0101] The switch unit 302 is used to control the connection between the power supply unit 301 and the power consumption module 303, or to control the disconnection between the power supply unit 301 and the power consumption module 303.

[0102] The switching unit 302 can determine whether the power supply unit 301 is connected to the power consumption module 303 through a switching transistor, a switch, or any device with conduction and turn-off functions; no specific limitation is made here. The structure of the switching unit 302 can be referred to the corresponding descriptions in Figures 4A to 4C below, which will not be described in detail here.

[0103] The control unit 304 is used to control the switch unit 302 to disconnect the connection between the power supply unit 301 and the power consumption module 303 when the power of the power supply unit 301 does not meet the preset condition A. In this way, stopping the power supply unit from supplying power to the power consumption module when the power is low can reduce the power loss of the power supply unit.

[0104] Preset condition A is used to indicate that the power of power unit 301 is less than a preset value. The preset value can be 10% of the power of power unit 301 when fully charged, 5% of the power of power unit 301 when fully charged, the sum of the minimum power required by each battery of power unit 301 to supply power to the power module, etc., and is not specifically limited here.

[0105] In this embodiment, the control unit 304 can perform statistical analysis of the charge levels of each battery in the power supply unit 301 in any one or more ways, such as battery output voltage, coulomb counter, model calculation, etc. No specific limitations are made here.

[0106] In one possible implementation, the control unit 304 can determine the battery's charge level by detecting the battery's output voltage. It is understood that the battery voltage is positively correlated with the remaining battery charge. In another possible implementation, the control unit 304 can calculate the battery's charge level using devices such as a coulomb counter or a fuel gauge.

[0107] Understandably, coulomb counters and fuel gauges can be used to monitor battery operating parameters (current, battery temperature, and voltage, etc.) and, based on these parameters and pre-stored state of charge (SOC)-open circuit voltage (OCV) curves, determine the remaining battery capacity.

[0108] In some embodiments, after the control switch unit 302 disconnects the connection between the power supply unit 301 and the power consumption module 303, the control unit 304 is in a sleep state or a power-off state. This reduces the power consumption of the control unit 304 and extends its battery life.

[0109] Upon detecting user operation, the trigger unit 305 or control unit 304 is also used to control the switch unit 302 to connect the power supply unit 301 to the power consumption module 303. This allows power to be restored to the power consumption module after user operation. The electronic device is equipped with an emergency use mode for the power consumption module, reducing inconvenience to users caused by the module's unavailability.

[0110] In this embodiment, the control unit 304 can be a processor, a system-on-a-chip, a microprocessor, or any form of device capable of performing the corresponding function, without any specific limitation.

[0111] Upon detecting a user operation, the trigger unit 305 or the control unit 304 is also used to control the switch unit 302 to connect the power supply unit 301 to the power consumption module 303. The structure of the trigger unit 305 can be referred to the corresponding descriptions in Figures 5A to 5D below, and will not be described in detail here.

[0112] In summary, when the power supply unit is low on power, its power supply to the power-consuming module can be disconnected. Power can then be restored to the power-consuming module upon receiving user input. During the disconnection period, the electronic device's power consumption is reduced, resulting in longer battery life. Furthermore, this method can also serve as an emergency measure to maintain the power-consuming module's functionality, minimizing inconvenience caused to users due to the module's unavailability.

[0113] It is understood that the power supply unit 301 described above may include one or more batteries. Each battery can independently power the power module, and each battery may include one battery, multiple batteries connected in parallel, or multiple batteries connected in series. No specific limitations are made here.

[0114] The structure of the switching unit 302 will be described below with reference to Figures 4A to 4C. Figure 4A is a schematic diagram of the switching unit 302 in a scenario where one battery powers the unit. Figures 4B and 4C are schematic diagrams of the switching unit 302 in a scenario where multiple batteries power the unit independently.

[0115] As shown in Figure 4A, the power supply unit 301 includes a battery, and the switching unit 302 may include a switching transistor S1. One end of the switching transistor S1 is connected to the power supply unit 301, the other end of the switching transistor S1 is connected to the power consumption module 303, and the control terminal of the switching transistor S1 is connected to the control unit 304.

[0116] Specifically, the control unit 304 can control the switching transistor S1 to turn on, so that the battery is connected to the power module 303; the control unit 304 can control the switching transistor S1 to turn off, so as to disconnect the connection between the power supply unit 301 and the power module 303.

[0117] For example, taking an N-type switch S1 as an example, when the control unit 304 outputs a high-level signal, the switch S1 is turned on, so that the power supply unit 301 is connected to the power consumption module 303, and the power supply unit 301 can supply power to the power consumption module 303; when the control unit 304 outputs a low-level signal, the switch S1 is turned off, so that the connection between the power supply unit 301 and the power consumption module 303 is disconnected, and the power supply unit 301 stops supplying power to the power consumption module 303.

[0118] For example, taking a P-type switch S1 as an example, when the control unit 304 outputs a low-level signal, the switch S1 is turned on, so that the power supply unit 301 is connected to the power consumption module 303, and the power supply unit 301 can supply power to the power consumption module 303; when the control unit 304 outputs a high-level signal, the switch S1 is turned off, so that the connection between the power supply unit 301 and the power consumption module 303 is disconnected, and the power supply unit 301 stops supplying power to the power consumption module 303.

[0119] In this embodiment, a high level can be understood as the difference between the level value and the source voltage of the switching transistor being greater than or equal to the threshold voltage. A low level can be understood as the difference between the level value and the source voltage of the switching transistor being less than the threshold voltage (e.g., Vgs(th)). The threshold voltage can also be called the turn-on voltage or the switching voltage.

[0120] The switching transistor S1 can be a metal oxide semiconductor field-effect transistor (MOSFET), an insulated gate bipolar transistor (IGBT), a power transistor, a gallium nitride (GaN) transistor, or other types of switching transistors. This application does not specifically limit this type of switching transistor.

[0121] For example, Figure 4B is a schematic diagram of the structure of a switching unit 302 in a two-battery scenario provided in an embodiment of this application. As shown in Figure 4B, the switching unit 302 may include: a switch 3021 and a switching transistor 3022. The switch 3021 includes: port 2a, port 2b and port 2c; port 2a is connected to battery 3011, port 2b is connected to battery 3012, port 2c is connected to port 3a of the switching transistor 3022, port 3b of the switching transistor 3022 is connected to the power module 303, and the control terminal 3c of the switching transistor 3022 is connected to the control unit 304.

[0122] The switching transistor 3022 can be a metal oxide semiconductor field-effect transistor (MOSFET), an insulated gate bipolar transistor (IGBT), a power transistor, a gallium nitride (GaN) transistor, or other types of switching transistors. This application does not specifically limit this type of switching transistor.

[0123] Specifically, control unit 304 can control the connection of port 2a and port 2c of switch 3021, and control switch transistor 3022 to conduct, so that battery 3011 is connected to power module 303; control unit 304 can control the connection of port 2b and port 2c of switch 3021, and control switch transistor 3022 to conduct, so that battery 3012 is connected to power module 303; control unit 304 can control switch transistor 3022 to turn off, so as to disconnect the connection between power unit 301 and power module 303.

[0124] For example, Figure 4C is a schematic diagram of another switching unit 302 in a two-battery scenario provided in an embodiment of this application. As shown in Figure 4C, the switching unit 302 may include a switch 3023. The switch 3023 includes: port 5a, port 5b, port 5c, and port 5d; port 5a is connected to battery 3011, port 5b is connected to battery 3012, port 5c is open-circuited, and port 5d is connected to power module 303.

[0125] Specifically, control unit 304 can control the connection of port 5a and port 5d of switch 3023 to connect battery 3011 to power module 303; control unit 304 can control the connection of port 5b and port 5d of switch 3023 to connect battery 3012 to power module 303; control unit 304 can control the connection of port 5c and port 5d to disconnect power unit 301 from power module 303.

[0126] It should be understood that the structure of the switching unit shown in Figures 4A to 4C is only an example, and it can be any structure that can achieve the corresponding function. No specific limitation is made here.

[0127] Based on the above embodiments, the switching unit 302 may further include a voltage adjustment module. The voltage adjustment module can adjust the voltage output by the battery to the supply voltage required by the power module 303. In this way, the power supply unit 301 can use batteries of different specifications for power supply, thus having a wide range of applications.

[0128] It is understood that the above embodiments are illustrated using the example that all batteries in the power supply unit 301 are used to power the power consumption module 303. In some embodiments, some batteries in the power supply unit 301 are used to power the power consumption module 303, while other batteries may not be used to power the power consumption module 303. Adaptively, whether the power supply unit 301's charge level meets preset condition A can be understood as whether the charge level of some batteries in the power supply unit 301 meets preset condition A.

[0129] The above embodiments have described the structure of the switching unit. The following description, in conjunction with Figures 5A to 5D, illustrates the structure of the power supply circuits corresponding to different user operations.

[0130] It is understood that the power supply restoration of the power module 303 can be achieved through control unit software control or through trigger unit hardware control.

[0131] Specifically, the control unit 304 can receive user operations via the trigger unit 305. Upon receiving a user operation, the control unit 304 transmits a control signal to the switch unit 302, which instructs the power supply unit 301 to be connected to the power consumption module 303. For example, the user operation can be any operation such as a touch operation on the trigger unit 305, a pressing operation on a button in the trigger unit 305, or inserting a charging device into the interface of the trigger unit 305. No specific limitations are imposed here.

[0132] In other embodiments, the trigger unit 305 can directly trigger the switch unit to connect the power supply unit 301 and the power consumption module 303 via hardware circuit connection when a user operation is received. For example, the user operation can be any operation such as inserting a charging device into the interface of the trigger unit 305, or bringing a wireless charging device close to the coil in the trigger unit 305. No specific limitation is made here.

[0133] The following describes the scenario of power restoration of the power module 303 controlled by software, with reference to Figures 5A to 5C; Figure 5D corresponds to the scenario of power restoration of the power module 303 controlled by hardware.

[0134] For example, Figure 5A is a schematic diagram of a button-triggered power supply recovery circuit provided in an embodiment of this application. As shown in Figure 5A, taking the trigger unit 305 including a button as an example, the circuit includes a power supply unit 301, a switch unit 302, a power module 303, a control unit 304, and a button 401. The control unit 304 is connected to the button 401.

[0135] The structure and function of the power supply unit 301, the switch unit 302, the power module 303, and the control unit 304 can be referred to the above descriptions, and will not be repeated here.

[0136] Upon detecting a press operation on button 401, control unit 304 can transmit control signal A to switch unit 302. This control signal A is used to indicate the connection of power supply unit 301 and power consumption module 303.

[0137] Taking the switching unit 302 including the aforementioned switching transistor S1 as an example, if the switching transistor S1 is an N-type switching transistor, the control signal A can be a high-level signal; if the switching transistor S1 is a P-type switching transistor, the control signal A can be a low-level signal.

[0138] In this way, a button can be set to trigger the power supply restoration of the power module 303. The structure is simple and easy to implement.

[0139] For example, Figure 5B is a schematic diagram of the structure of an electronic device for coil-triggered power supply recovery provided in an embodiment of this application. As shown in Figure 5B, the electronic device includes: a power supply unit 301, a switching unit 302, a power consumption module 303, a control unit 304, a coil 601, and a receiving unit 602. The output terminal of the power supply unit 301 is connected to the input terminal of the switching unit 302, and the output terminal of the switching unit 302 is connected to the power consumption module 303; both the power supply unit 301 and the switching unit 302 are controlled by the control unit 304. The control unit 304 is connected to the receiving unit 602, and the receiving unit 602 is connected to the coil 601.

[0140] The structure and function of the power supply unit 301, the switch unit 302, the power module 303, and the control unit 304 can be referred to the corresponding descriptions above, and will not be repeated here.

[0141] In this embodiment, coil 601 is used to receive magnetic field energy from a wireless device and output AC voltage to receiving unit 602. Receiving unit 602 is used to convert the AC voltage output by coil 601 into DC voltage.

[0142] For example, the receiving unit 602 may include a rectifier bridge. The rectifier bridge is used to convert the AC voltage output by the receiving coil 601 into a DC voltage.

[0143] In some embodiments, the control unit 304 can detect the DC voltage output by the receiving unit 602; when the voltage value of the DC voltage output by the receiving unit 602 is greater than a preset threshold A, it confirms that a user operation has been detected.

[0144] In other embodiments, the receiving unit 602 may also communicate with the control unit 304. The receiving unit 602 transmits a trigger signal to the control unit 304 when the output DC voltage value exceeds a preset threshold A. Upon receiving the trigger signal, the control unit 304 confirms that a user operation has been detected.

[0145] For example, the receiving unit 602 may include a rectifier bridge and a control module. The control module is used to communicate with the control unit 304 when the output DC voltage value is greater than a preset threshold A. The control module can also be used to communicate with the wireless charging device through the receiving coil according to the DC voltage value. No specific limitations are made here.

[0146] Based on the above embodiments, the coil 601 and the receiving unit 602 are also used to charge the battery in the power supply unit 301. For example, as shown in FIG5B, the receiving unit 602 is connected to the battery in the power supply unit 301. In this way, the coil used for wireless charging in the electronic device can be reused, reducing the need for additional components.

[0147] In summary, when an electronic device needs to enter a low-power standby mode due to low battery, the power supply path from the power supply unit to the power consumption module can be disconnected. The path can then be restored via a coil. During the disconnection period, the electronic device's power consumption is reduced, resulting in a longer battery life. Furthermore, transferring charge from battery 3011 to battery 3012 allows for more efficient use of battery 3011, and the increased charge level of battery 3012 after the charge transfer enhances the output power supplied to the power consumption module.

[0148] For example, Figure 5C is a schematic diagram of the structure of an electronic device for interface-triggered power restoration according to an embodiment of this application. As shown in Figure 5C, the electronic device includes: a power supply unit 301, a switch unit 302, a power consumption module 303, a control unit 304, and an interface 701. The output terminal of the power supply unit 301 is connected to the input terminal of the switch unit 302, and the output terminal of the switch unit 302 is connected to the power consumption module 303; both the power supply unit 301 and the switch unit 302 are controlled by the control unit 304. The control unit 304 is also used to detect the status of the interface 701.

[0149] Interface 701 can be any type of interface, such as a USB interface. No specific limitations are made here.

[0150] In this embodiment of the application, interface 701 can be a newly added interface or a previously existing interface in the electronic device. For example, interface 701 can be an interface used to indicate charging, and no specific limitation is made here.

[0151] Taking interface 701 as an example of an interface used for charging, user operation can be to connect a charging device to interface 701. For example, when a charging device (e.g., a charger, power bank, etc.) is connected to interface 701, the control unit 304 detects the user operation and controls the battery 3012 to connect to the power module 303.

[0152] In summary, when an electronic device needs to enter a low-power standby mode due to low battery, the power supply path from the power supply unit to the power consumption module can be disconnected. Power supply to the power consumption module 303 can then be restored via the interface. During the disconnection period, the electronic device's power consumption is reduced, resulting in a longer battery life. Furthermore, transferring power from battery 3011 to battery 3012 allows for more efficient use of battery 3011, and the increased capacity of battery 3012 after the power transfer enhances the output power supplied to the power consumption module.

[0153] It is understood that the electronic device may be equipped with one or more of the following devices: button 401, coil 601, and interface 701. When the electronic device is equipped with multiple devices, it can control the connection between battery 3012 and power module 303 by detecting any user operation corresponding to those multiple devices.

[0154] For example, Figure 5D shows an electronic device including: a power supply unit 301, a switching unit 302, a power consumption module 303, a control unit 304, and a triggering unit 305. The output terminal of the power supply unit 301 is connected to the input terminal of the switching unit 302, and the output terminal of the switching unit 302 is connected to the power consumption module 303; both the power supply unit 301 and the switching unit 302 are controlled by the control unit 304. The switching unit 302 is also controlled by the triggering unit 305.

[0155] The power supply unit 301, switch unit 302, power module 303 and control unit 304 can be referred to the corresponding descriptions above, and will not be elaborated here.

[0156] In the embodiment shown in Figure 5D, the power supply path of the control unit 304 may include: a power supply unit 301, a switch 3021, and a switching transistor 3022. Thus, after the control unit 304 controls the switching transistor 3022 to turn off, the control unit 304 shuts down, reducing the energy consumption of the electronic device.

[0157] The trigger unit 305 is used to receive user operations. Upon receiving a user operation, the control switch unit 302 is turned on, for example, the control switch transistor 3022 is turned on.

[0158] Taking the trigger unit 305, which includes the aforementioned coil 601 and receiving unit 602, as an example, when the difference between the DC voltage output by the receiving unit 602 and the source voltage of the switching transistor is greater than or equal to the threshold voltage of the switching transistor 3022, the switching transistor 3022 is turned on, the power supply path of the power module 303 is turned on, and the power supply path of the control unit 304 is turned on. It is understood that the "equal to" condition is explained using the example of the switching transistor being turned on; the "equal to" condition can also correspond to the switching transistor being turned off, and no specific limitation is made here.

[0159] Taking the trigger unit 305 including the aforementioned interface 701 as an example, when the difference between the voltage output by the interface 701 and the source voltage of the switching transistor is greater than or equal to the threshold voltage of the switching transistor 3022, the switching transistor 3022 is turned on, the power supply path of the power module 303 is turned on, and the power supply path of the control unit 304 is turned on.

[0160] Based on the above embodiments, a power transfer path can also be provided between the batteries in the power supply unit 301 to transfer power. This allows power transfer through the power transfer path, increasing the charge level of one of the batteries. Thus, the electronic device can continue to supply power to the power-consuming module through the battery with the increased charge, thereby enabling the power-consuming module to perform its functions and extending the usage time of the electronic device.

[0161] For example, taking a power supply unit 301 that includes two batteries as an example, as shown in Figure 6, the power supply unit 301 may include: battery 3011, battery 3012, and power transfer module 3013. The input terminal 1a of the power transfer module 3013 is connected to battery 3011, and the output terminal 1b of the power transfer module 3013 is connected to battery 3012.

[0162] In this embodiment, battery 3011 can be any type of battery, such as a rechargeable battery (also known as a secondary battery) or a non-rechargeable battery (also known as a primary battery). Battery 3012 can be a rechargeable battery. This embodiment does not specifically limit the specific type of battery 3011 or battery 3012.

[0163] The power transfer module 3013, under the control of the control unit 304, transfers the power from battery 3011 to battery 3012. This power transfer increases the power level of battery 3012, allowing it to continue supplying power to the power-consuming module 303.

[0164] In this embodiment, the power transfer module can turn the power transfer path on or off using a switching transistor or other arbitrary means.

[0165] For example, as shown in Figure 7A, the power transfer module may include a switching transistor Q1. Port 3a of the switching transistor Q1 is connected to the battery 3011, port 3b of the switching transistor Q1 is connected to the battery 3012, and the control terminal of the switching transistor Q1 is controlled by the control unit 304.

[0166] Taking an N-type switch Q1 as an example, when the control unit 304 outputs a high-level control signal, the switch Q1 is turned on, connecting battery 3011 and battery 3012, allowing battery 3011 to charge battery 3012. When the control unit 304 outputs a low-level signal, the switch Q1 is turned off, disconnecting battery 3011 from battery 3012 and stopping the transfer of power from battery 3011 to battery 3012.

[0167] Taking a P-type switch Q1 as an example, when the control unit 304 outputs a low-level signal, the switch Q1 is turned on, connecting battery 3011 and battery 3012, allowing battery 3011 to charge battery 3012. When the control unit 304 outputs a high-level control signal, the switch Q1 is turned off, disconnecting the connection between battery 3011 and battery 3012 and stopping the transfer of power from battery 3011 to battery 3012.

[0168] In this embodiment, the switching transistor Q1 can be replaced with any other device capable of performing the turn-on and turn-off functions; no specific limitation is made here. In this embodiment, a high level can be understood as the difference between the level value and the source voltage of the switching transistor being greater than or equal to the threshold voltage. A low level can be understood as the difference between the level value and the source voltage of the switching transistor being less than the absolute value of the threshold voltage (e.g., Vgs(th)). The threshold voltage can also be called the turn-on voltage or the on-state voltage.

[0169] It is understandable that the "equal to" case is explained with the switching transistor on as an example. The "equal to" case can also be used when the switching transistor is off, and no specific limitation is made here.

[0170] In this way, battery 3011 can control the opening or closing of the power transfer path by turning the switching transistor on and off. The method is simple and easy to implement.

[0171] Understandably, the voltage output by battery 3011 may not meet the charging requirements of battery 3012. For example, the voltage output by battery 3011 may be greater than the voltage required for charging battery 3012, or the voltage output by battery 3011 may be less than the voltage required for charging battery 3012. Therefore, the power transfer module also has a voltage regulation function.

[0172] For example, as shown in Figure 7A, the power transfer module may further include a voltage adjustment module A. This voltage adjustment module A can adjust the voltage output by battery 3011 to the voltage required for charging battery 3012. In this way, the voltage output by battery 3011 is adjusted to meet the charging needs of battery 3012.

[0173] It is understood that the voltage adjustment module A can be located between battery 3011 and switching transistor Q1, or between battery 3012 and switching transistor Q1; no specific limitation is made here.

[0174] Understandably, if the voltage output by battery 3011 is greater than the voltage required for charging battery 3012, then voltage adjustment module A can have a buck function. If the voltage output by battery 3011 is less than the voltage required for charging battery 3012, then voltage adjustment module A can have a boost function.

[0175] The structure of voltage adjustment module A in the two cases is explained below with reference to Figures 7B and 7C.

[0176] For example, Figure 7B is a schematic diagram of the structure of a voltage adjustment module A provided in an embodiment of this application. Taking the example that the voltage of battery 3011 is higher than the voltage of battery 3012, as shown in Figure 7B, the voltage adjustment module A may include: a power module 1 and a power control module 1. The power module 1 is used to adjust the voltage output by battery 3011, and the power control module 1 is used to adjust the voltage output by the power module 1.

[0177] For example, power module 1 may include: a switching transistor Q2, an inductor L1, a diode D1, and a capacitor C1. One end of the switching transistor Q2 is the input terminal, which can be connected to port 3b of the switching transistor Q1. The other end of the switching transistor Q2 is connected to one end of the inductor L1. One end of the diode D1 is connected to one end of the inductor L1. One end of the capacitor C1 is connected to the other end of the inductor L1. The other end of the diode D1 and the other end of the capacitor C1 are grounded. The other end of the inductor L1 is the output terminal, which can be connected to the battery 3012.

[0178] The switching transistor Q2 can also be replaced with a single-pole single-throw switch or any device with turn-on and turn-off functions; no specific limitations are made here. The diode D2 can also be replaced with a switching transistor (NMOS transistor, PMOS transistor), or any device that can achieve the corresponding function; no specific limitations are made here.

[0179] The working principle of voltage adjustment module A shown in Figure 7B is explained below.

[0180] When switch Q2 is turned on, battery 3011 charges capacitor C1 and battery 3012 through switch Q2 and inductor L1. At this time, inductor L1 stores energy, and the voltage Vout output by the power transfer module rises slowly. If switch Q2 remains on, and the voltage drop loss of switch Q2 is not considered, Vout will be approximately equal to the voltage output by battery 3011.

[0181] When switch Q2 is turned off, both inductor L1 and capacitor C1 release their stored energy to charge battery 3012. The voltage Vout output by the power transfer module decreases slowly due to the discharge Ic of capacitor C1 and the reduced inductor current IL. If switch Q2 remains off, Vout will eventually become the same as the voltage of battery 3012.

[0182] In the power transfer module A shown in Figure 7B, the power control module 1 can control the duty cycle of the switching transistor Q2 to control the magnitude of the voltage output to the battery 3012.

[0183] For example, Figure 7C is a schematic diagram of another power transfer module 3013 provided in an embodiment of this application. Taking the example that the voltage of battery 3011 is lower than the voltage of battery 3012, as shown in Figure 7C, the power transfer module 3013 may include: a power module 2 and a power control module 2. The power module 2 is used to adjust the voltage output by battery 3011, and the power control module 2 is used to adjust the voltage output by the power module 2.

[0184] For example, power module 2 may include: inductor L2, diode D2, switching transistor Q3 and capacitor C2.

[0185] Diode D2 can also be replaced by a switching transistor (NMOS transistor, PMOS transistor), or any device that can achieve the corresponding function; no specific limitations are made here. Switch Q3 can also be replaced by a single-pole single-throw switch or any device with turn-on and turn-off functions; no specific limitations are made here.

[0186] The working principle of voltage adjustment module A shown in Figure 7C is explained below.

[0187] When switch Q3 is turned on, inductor L2 charges, and capacitor C2 supplies power to battery 3012. The voltage Vout output by the power transfer module is the discharge voltage of capacitor C2.

[0188] When switch Q3 is turned off, battery 3011 and inductor L2 supply power to battery 3012 via diode D3; battery 3011 and inductor L2 also charge capacitor C2 via diode D3. The voltage Vout output by the power transfer module is approximately equal to the sum of the voltage output by battery 3011 and the inductive reactance voltage (i.e., -VL) of inductor L2.

[0189] In the power transfer module A shown in Figure 7B, the power control module 2 can control the duty cycle of the switching transistor Q3 and control the magnitude of the voltage output to the battery 3012.

[0190] In the circuits shown in Figures 7B and 7C above, the voltage output by the battery 3011 can be adjusted by the power transfer module 3013, so that the battery 3011 can charge the battery 3012.

[0191] The voltage adjustment module A shown in Figures 7B and 7C is merely an example; the corresponding function can be achieved through other circuit structures. Furthermore, the structures shown in Figures 7B and 7C can only implement either boost or buck functions. Voltage adjustment module A can also be a structure that has both boost and buck functions; no specific limitation is made here.

[0192] In some embodiments, the voltage regulation module A may have a shutdown function, and the power transfer module may not include the switching transistor Q1. For example, taking the voltage regulation module A as shown in Figure 7B, the power transfer module is turned off when the switching transistor Q2 is continuously turned off. Therefore, the power transfer module may also not include the switching transistor Q1 to reduce the number of components in the circuit.

[0193] In some embodiments, the battery 3012 includes a device with voltage regulation function, which the electronic device can reuse to adjust the voltage output by the battery 3011. Adaptively, the power transfer module 3013 may include a device with on / off function (e.g., a switch Q1), but does not include a device with voltage regulation function (e.g., voltage regulation module A).

[0194] For example, as shown in FIG7D, the power transfer module 3013 may include: a switching transistor Q4; the battery 3012 includes: a charging module 11, a battery cell 12 and a charging interface 13.

[0195] Port 4a of switch Q4 is connected to battery 3011, and port 4b of switch Q4 is connected to the input terminal of charging module 11; the output terminal of charging module 11 is connected to battery cell 12, and the control terminal of switch Q4 is controlled by control unit 304. Charging interface 13 is used to connect charging equipment. The charging equipment can be a power bank, charger, etc., and is not specifically limited here.

[0196] The function and structure of switch Q4 are similar to those of switch Q1 described above. Please refer to the relevant descriptions above for details, which will not be repeated here.

[0197] The charging module 11 is used to adjust the voltage input to the charging module to obtain a suitable charging voltage. The battery cell 12 is used to store or release electrical energy.

[0198] The working principle of the circuit shown in Figure 7D will be explained below.

[0199] When the charging interface 13 is connected to a charging device, the battery 3012 can be charged through the charging device. Therefore, there is no need to charge the battery 3012 through 3011, the switching transistor Q4 can remain off, and the connection between the battery 3011 and the charging module 11 is disconnected.

[0200] When the charging interface 13 is not connected to a charging device, the switching transistor Q4 can be turned on or off to control whether the battery 3011 transfers power to the battery 3012. Specifically, when the switching transistor Q4 is on, the battery 3011 is connected to the charging module 11, enabling power transfer; when the switching transistor Q4 is off, the connection between the battery 3011 and the charging module 11 is broken.

[0201] In this embodiment, the charging module 11 can be any structure with voltage adjustment function, for example, the same as or similar to the voltage adjustment module A in Figure 4B or Figure 4C, and is not specifically limited here. The charging module 11 can have both boost and buck functions, and is not specifically limited here.

[0202] It should be understood that the structure of the power transfer module shown in Figures 7A to 7D is only an example. The power transfer module can also be any other structure with power transfer function, and no specific limitation is made here.

[0203] The switching unit 302 is used, under the control of the control unit 304, to control any battery in the power supply unit 301 to connect to the power consumption module 303, or to control the connection between the power supply unit 302 and the power consumption module 303 to disconnect.

[0204] The control unit 304 can control the power transfer module 3013 to perform power transfer before disconnecting the connection between the power supply unit 301 and the power consumption module 303; it can also control the power transfer module 3013 to perform power transfer after disconnecting the connection between the power supply unit 301 and the power consumption module 303. This application embodiment does not specifically limit the timing of power transfer.

[0205] In this embodiment, the control unit 304 controls the power transfer module 3013 to perform power transfer when the charge level of battery 3011 is less than or equal to a preset value A, and / or the charge level of battery 3012 is greater than or equal to a preset value B, so as to transfer the charge level from battery 3011 to battery 3012. This power transfer can increase the charge level of battery 3012 and extend the battery life of power unit 301. This embodiment does not specifically limit the triggering conditions for power transfer.

[0206] In this embodiment, preset value A and preset value B can be any values. Preset value A and preset value B can be the same or different, and no specific limitation is made here.

[0207] In some embodiments, preset value A is equal to the minimum amount of power required by battery 3011 to maintain the operation of power module 303; preset value B is equal to the minimum amount of power required by battery 3012 to maintain the operation of power module 303. This can improve the utilization rate of battery 3011.

[0208] It should be noted that the battery voltage gradually decreases during discharge. When the battery voltage drops to a certain level, it may not be able to meet the power requirements of the power module 303, thus failing to drive the power module 303 to operate. The circuit shown in Figure 3 can transfer the remaining charge in battery 3011 to battery 3012, improving the utilization rate of battery 3011 and allowing the charge in battery 3012 to continue supporting the operation of the power module 303 for a period of time.

[0209] For example, taking batteries 3011 and 3012 as being of the same specification, and both batteries 3011 and 3012 being unable to meet the power requirements of the power module 303 when they have 10% remaining charge, the circuit shown in Figure 3 can transfer the remaining charge in battery 3011 to battery 3012. Therefore, when the remaining charge in battery 3012 is greater than 10%, battery 3012 can subsequently meet the power requirements of the power module 303 and continue to supply power to the power module 303.

[0210] In one possible implementation, the control unit 304 can also control the power transfer module 3013 to transfer power when the battery 3011's charge is less than or equal to a preset value A. This allows power transfer to increase the charge of the battery 3012 when the battery 3011's charge is low, thereby extending the battery 3012's power supply time to the power-consuming module and increasing the module's usage time.

[0211] In a possible second implementation, the power transfer module 3013 is controlled to transfer power when the battery 3012's charge is less than or equal to a preset value B. This allows power transfer to increase the battery 3012's charge level when it is low, thereby extending the battery 3012's power supply time to the power-consuming module and increasing the module's usage time.

[0212] In a possible implementation method three, when the charge of battery 3011 is less than or equal to a preset value A and the charge of battery 3012 is less than or equal to a preset value B, the power transfer module 3013 is controlled to transfer power. This allows power transfer to increase the charge of battery 3012 when both batteries 3011 and 3012 have low charges, thereby extending the power supply time of battery 3012 to the power-consuming module and increasing the module's usage time.

[0213] In some embodiments, the control unit 304 stops power transfer when the battery 3011's charge level is less than or equal to a fixed value A. Alternatively, when the control unit 304 detects the connection of a charging device or wireless charging device, the control unit 304 controls the power transfer module 3013 to stop power transfer. Or, the battery 3012's charge level is greater than or equal to a fixed value B. The fixed value A can be 0 or 0.1% of the full charge level; no specific limitation is made here. The fixed value B is greater than the minimum charge required by the battery 3012 to power the power-consuming module. It is understood that the "equal to" case is illustrated by example of stopping power transfer; the "equal to" case can also correspond to the case where power transfer is not stopped; no specific limitation is made here.

[0214] In this embodiment, the control unit 304 can calculate the battery charge level in one or more ways, such as by measuring the battery output voltage or using a coulomb counter. No specific limitations are specified here.

[0215] For example, if the control unit 304 can determine the battery's charge level by detecting the battery's output voltage, and if it detects that the output voltage of battery 3011 is less than a preset voltage A, and the output voltage of battery 3012 is less than a preset voltage B, the control unit 304 can control the power transfer module 3013 to transfer power. The preset voltage A corresponds to the voltage of battery 3011 when it is at charge level B; the preset voltage B corresponds to the voltage of battery 3012 when it is at charge level C.

[0216] In some embodiments, power transfer stops when the voltage output by battery 3011 is less than or equal to a preset voltage C. Alternatively, when control unit 304 detects the connection of a charging device or wireless charging device, control unit 304 controls power transfer module 3013 to stop power transfer. The preset voltage C may correspond to the voltage of battery 3011 when its charge level is a fixed value A.

[0217] In summary, when an electronic device needs to enter a low-power standby mode due to low battery, the power supply path from the power supply unit to the power consumption module can be disconnected. The path can be restored subsequently via a button. During the disconnection period, the electronic device consumes less power, resulting in longer battery life. Furthermore, transferring power from battery 3011 to battery 3012 allows for more efficient use of battery 3011, and the increased capacity of battery 3012 after the power transfer enhances the output power supplied to the power consumption module.

[0218] It should be understood that in the above embodiments, the case of equality is illustrated with the example of power transfer. The case of equality can also correspond to the case of no power transfer, and no specific limitation is made here.

[0219] In the circuit shown in the above embodiment, the control unit 304 can control the power transfer module 3013 to turn on or off, control the switching connection of the switch unit 3022, and control the power supply path of the power module 303 to be restored after receiving a trigger signal.

[0220] In some embodiments, the control unit may include at least two sub-control units. These at least two sub-control units can implement the corresponding functions of the control unit 304 described above. Taking two sub-control units as an example, one sub-control unit can control the power transfer module 3013 to turn on or off, control the switching connection of the switch unit 3022, and control the power supply path of the power consumption module 303 to turn off, etc.; the other sub-control unit can control the power supply path of the power consumption module 303 to be restored after receiving a trigger signal. In this way, some control functions corresponding to the control unit 304 can be turned off, while the electronic device can retain the control of power supply path restoration, saving energy consumption of the electronic device.

[0221] For example, as shown in FIG8, the electronic device includes: a power supply unit 301, a switch unit 302, a power consumption module 303, a sub-control unit 304-1, a sub-control unit 304-2, and a trigger unit 305.

[0222] The output terminal of the power supply unit 301 is connected to the input terminal of the switch unit 302, and the output terminal of the switch unit 302 is connected to the power consumption module 303; both the power supply unit 301 and the switch unit 302 are controlled by the sub-control unit 304-1. The control unit 304-2 is connected to the trigger unit 305, and the switch unit 302 is also controlled by the sub-control unit 304-2.

[0223] The power supply unit 301, switch unit 302, and power module 303 can be referred to the corresponding descriptions above, and will not be elaborated further here.

[0224] The sub-control unit 304-1 is used to control the power transfer module 3013 to perform power transfer when the power of battery 3011 is less than or equal to a preset value A, and / or the power of battery 3012 is equal to or equal to a preset value B, so as to transfer the power of battery 3011 to battery 3012.

[0225] The sub-control unit 304-1 is also used to disconnect the connection between the power supply unit 301 and the power consumption module 303 when the power of the power supply unit 301 does not meet the preset condition A; for details, please refer to the description of the corresponding function in the control unit 304 above.

[0226] The sub-control unit 304-2 is used to control the connection between the power supply unit 301 and the power consumption module 303 to be turned on (for example, to control the switching transistor 3022 in the switching unit 302 to be turned on) after receiving a trigger signal from the trigger unit 305. For details, please refer to the description of the corresponding function in the control unit 304 above. The trigger unit 305 is used to generate a trigger signal after receiving a user operation.

[0227] The power supply path of the sub-control unit 304-1 may include: a power supply unit 301, a switch 3021, and a switching transistor 3022. The power supply path of the sub-control unit 304-1 may include: a power supply unit 301 and a switch 3021, but does not include the switching transistor 3022.

[0228] In this way, after the sub-controller 304-1 controls the switch 3022 to turn off, the sub-controller 304-1 shuts down, reducing the energy consumption of the electronic equipment. The sub-controller 304-2 is unaffected by the on / off state of the switch 3022, and can detect the button 401, thereby restoring the power supply path of the control power module 303.

[0229] The trigger unit 305 can be referred to the corresponding description above, and will not be elaborated on here.

[0230] In the embodiment shown in Figure 8 above, the functional division of the control unit is only an example, and it can be divided in other ways, which are not specifically limited here.

[0231] It is understood that the above embodiments are illustrated using the example of a power supply unit 301 comprising two batteries. The power supply unit 301 may include three, four, or even more batteries. Adaptively, the power supply unit 301 may also include more than one power transfer unit. This application does not specifically limit the number of batteries or the number of power transfer units in the power supply unit 301.

[0232] The above embodiment illustrates the transfer of power from one battery to another using a power transfer unit. The power transfer unit can also transfer power from multiple batteries to one or more batteries (as shown in Figure 10), or transfer power from one battery to one or more batteries (as shown in Figure 11). No specific limitations are imposed here.

[0233] For example, Figure 10 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. As shown in Figure 10, the electronic device includes: a power supply unit 801, a switch unit 802, a power consumption module 803, a control unit 804, and a trigger unit 805. The output terminal of the power supply unit 801 is connected to the input terminal of the switch unit 802, and the output terminal of the switch unit 802 is connected to the power consumption module 803; both the power supply unit 801 and the switch unit 802 are controlled by the control unit 804.

[0234] The functions and structures of the power supply unit 801, switch unit 802, power module 803, control unit 804, and trigger unit 805 can be referred to the descriptions of the corresponding units in the circuit shown in the above embodiments, and will not be elaborated here.

[0235] In the circuit shown in Figure 10, the power supply unit 801 may include multiple batteries and a power transfer module disposed between any two batteries. As shown in Figure 10, a power transfer module is disposed between battery 1 and battery 2, and a power transfer module is disposed between battery 2 and battery 3. Subsequent electronic devices can transfer the power of battery 1 and battery 3 to battery 2 through the power transfer modules.

[0236] The structure of the power transfer module can be referred to the corresponding description above, and will not be repeated in detail here. It is understood that the two power transfer modules shown in Figure 10 can be independent modules, and these two power transfer modules can also reuse some components, which is not specifically limited here.

[0237] It is understandable that batteries 1 and 3 can transfer power to battery 2 simultaneously, or they can transfer power to battery 2 in a certain order (for example, after the power transfer from battery 1 is completed, power can be transferred to battery 2 through battery 3). The specific order of power transfer is not limited here.

[0238] The switching unit 802, under the control of the control unit 804, controls the connection between any battery in the power supply unit 801 and the power consumption module 803, or disconnects the connection between the power supply unit 801 and the power consumption module 803. The structure of the switching unit 802 can be referred to the corresponding description of the switching unit above, and will not be elaborated further here.

[0239] In this way, when the electronic device's battery is low, it can transfer power through this power transfer path, increasing the charge of one of the batteries. Upon receiving a user operation, the boosted battery powers the product module, enabling the module to function and reducing inconvenience caused by the electronic device becoming unusable.

[0240] The trigger unit 805 can be described in the same way as the trigger unit in the circuit shown in Figure 8 or Figure 9 above, and will not be repeated here.

[0241] The power supply unit 801 shown in Figure 10 is illustrated using the example of transferring power to the same battery. The power supply unit 801 can also transfer power from one battery to multiple batteries. As shown in Figure 11, a power transfer module is installed between battery 1 and battery 2, and between battery 1 and battery 3. Subsequent electronic devices can use these power transfer modules to transfer power from battery 1 to batteries 2 and 3.

[0242] It is understandable that battery 1 can transfer power to batteries 2 and 3 simultaneously, or it can transfer power in a certain order (for example, first transfer power to battery 2, then transfer power to battery 3). The specific order of power transfer is not limited here.

[0243] It is understood that the power transfer module settings in the above embodiments are merely examples and are not intended to be specific.

[0244] It is understandable that if the aforementioned electronic device is a smart lock, this smart lock can disconnect the power supply when the battery level drops to a certain value, reducing battery leakage and achieving longer battery life. Users can restore power via buttons or other methods for convenient emergency unlocking.

[0245] Furthermore, if the smart lock is powered by both rechargeable batteries (e.g., lithium-ion batteries) and non-rechargeable batteries (e.g., zinc-manganese batteries), the non-rechargeable battery cannot continue discharging when its power is low due to the large size of the power module. The circuit described above can transfer the power from the non-rechargeable battery to the rechargeable battery through a small-current charging method, thereby enhancing the driving capability of the rechargeable battery and fully utilizing the power of the non-rechargeable battery.

[0246] Furthermore, if the smart lock is powered by a rechargeable battery, the large size of the power module means the battery cannot continue discharging when low. The aforementioned circuitry allows the rechargeable battery's charge to be transferred to other rechargeable batteries via a small-current charging method, reducing leakage current during system standby and enhancing the driving capability of other rechargeable batteries, thus fully utilizing the rechargeable battery's power.

[0247] The above embodiments have described the power supply circuit. The control method for the power supply circuit will now be described with reference to Figure 12. As shown in Figure 12, the control method includes:

[0248] S1201. When the power supply unit meets the first preset condition, the control unit controls the switching unit to disconnect the connection between the power supply unit and the power consumption module.

[0249] The first preset condition can correspond to preset condition A in the above text.

[0250] S1202. Upon detecting user operation, the trigger unit or control unit controls the switch unit to connect the power supply unit to the power consumption module.

[0251] User operations can be referred to the corresponding instructions above, and will not be elaborated further here.

[0252] This allows for a power supply interruption to the power module when the first and second batteries are low, conserving battery power. Power can be restored via user intervention, providing an emergency solution for users.

[0253] Optionally, the power supply unit includes a first battery and a second battery. The method further includes: when the first battery and the second battery meet a second preset condition, the control unit controls the power transfer path to connect, causing power to transfer from the first battery to the second battery.

[0254] The second preset condition includes: the charge of the first battery is less than or equal to the first value, and / or the sum of the charges of the second batteries is less than or equal to the second value.

[0255] The first value can be 10% of the first battery's charge when fully charged, 5% of its charge when fully charged, or any other value. The second value can be 10% of the second battery's charge when fully charged, 5% of its charge when fully charged, or any other value. The first and second values ​​can be the same or different; no specific restrictions are imposed here.

[0256] The first and second batteries can correspond to the batteries in the power supply unit mentioned above. For example, the first battery can correspond to battery 3011 mentioned above, and the second battery can correspond to battery 3012 mentioned above. The power module can be any module, such as a module for implementing the unlocking function or a module for implementing other functions.

[0257] In this way, when the first battery has a low power level, the second battery has a low power level, or both batteries have low power levels, the first battery can transfer power to increase the power level of the second battery, thereby extending the power supply time of the second battery to the power module and increasing the usage time of the power module.

[0258] This application provides a control unit, which can be any of the possible electronic devices described above.

[0259] This application provides an electronic device, which includes a processor and a memory; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory, causing the electronic device to perform the above-described method.

[0260] This application provides a chip. The chip includes a processor, which is used to call a computer program in memory to execute the technical solutions in the above embodiments. Its implementation principle and technical effects are similar to those in the related embodiments described above, and will not be repeated here.

[0261] This application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, it implements the methods described above. The methods described in the above embodiments can be implemented wholly or partially by software, hardware, firmware, or any combination thereof. If implemented in software, the functionality can be stored as one or more instructions or code on or transmitted over the computer-readable medium. The computer-readable medium can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. The storage medium can be any target medium accessible by a computer.

[0262] In one possible implementation, a computer-readable medium may include random access memory (RAM), read-only memory (ROM), compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other medium intended to carry or store required program code in the form of instructions or data structures, and accessible by a computer. Furthermore, any connection is appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disks and optical discs include optical discs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs optically reproduce data using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0263] This application provides a computer program product, which includes a computer program that, when run, causes a computer to perform the above-described method.

[0264] It should be noted that the modules or components described in the above embodiments can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), etc. Furthermore, when a module is implemented through processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors capable of calling program code, such as a controller. Additionally, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0265] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state disk (SSD)).

[0266] The term "multiple" in this document refers to two or more. The term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the preceding and following related objects; in formulas, " / " indicates a "division" relationship. Additionally, it should be understood that in the description of this application, words such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or order.

[0267] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0268] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A power supply circuit, characterized in that, include: At least one battery, a first switching unit, a control unit, and a triggering unit; The at least one battery is used to power the power module; The first switching unit is used to control the connection between the at least one battery and the power module, or to control the disconnection between the at least one battery and the power module; The control unit is configured to control the first switching unit to disconnect the connection between the at least one battery and the power module when the power of the at least one battery meets a first preset condition. Upon detecting user operation, the triggering unit or the control unit is further configured to control the first switching unit to connect the at least one battery to the power module.

2. The power supply circuit according to claim 1, characterized in that, Upon detecting the user operation, the control unit is specifically configured to transmit a control signal to the first switching unit; upon receiving the control signal, the first switching unit connects the at least one battery to the power module. Alternatively, the triggering unit may be specifically used to trigger the first switch unit to close upon detecting the user operation, thereby connecting the at least one battery to the power module.

3. The power supply circuit according to claim 2, characterized in that, The first switching unit includes a first switching transistor; the triggering unit includes an interface and / or a coil; the user operation includes: connecting the charging device to the interface, and / or bringing the wireless charging device close to the power supply circuit. The triggering unit is specifically used to transmit the voltage at the interface to the control terminal of the first switching transistor; when the voltage at the interface is greater than a preset voltage, the first switching transistor is turned on, so that the at least one battery is connected to the power module. And / or, the triggering unit is specifically used to couple magnetic field energy through the coil; when the magnetic field energy coupled to the triggering unit is greater than a preset energy, the first switch is turned on, so that the at least one battery is connected to the power module.

4. The power supply circuit according to any one of claims 1-3, characterized in that, After the control unit controls the first switching unit to disconnect the connection between the at least one battery and the power module, the control unit is in a power-off state or a sleep state.

5. The power supply circuit according to any one of claims 1-4, characterized in that, The first preset condition includes: the power of the at least one battery is less than or equal to a preset power.

6. The power supply circuit according to any one of claims 1-5, characterized in that, The at least one battery includes: a first battery and a second battery; a power transfer path is provided between the first battery and the second battery; The control unit is further configured to control the power transfer path to connect when the first battery and the second battery meet the second preset conditions, so that the first battery transfers power to the second battery.

7. The power supply circuit according to claim 6, characterized in that, The second preset condition includes: the charge of the first battery is less than or equal to a first value, and / or the charge of the second battery is less than or equal to a second value.

8. The power supply circuit according to claim 7, characterized in that, The first value is the minimum amount of power required by the first battery to supply power to the power module, and the second value is the minimum amount of power required by the second battery to supply power to the power module.

9. The power supply circuit according to any one of claims 6-8, characterized in that, The control unit is also used to control the first switching unit to maintain the connection between the at least one battery and the power consumption module when the first battery transfers power to the second battery.

10. The power supply circuit according to claim 6, characterized in that, The second preset condition includes: the first preset condition.

11. The power supply circuit according to any one of claims 6-10, characterized in that, The power transfer path includes: a second switching transistor; The second switch is used to control the connection between the first battery and the second battery; The control unit is specifically used to control the second switch to be turned on when the first battery and the second battery meet the second preset condition, so that the first battery and the second battery are connected.

12. The power supply circuit according to any one of claims 6-11, characterized in that, The control unit is further configured to control the power transfer path to disconnect the connection between the first battery and the second battery when the first battery and the second battery meet a third preset condition; The third preset condition includes: the charge of the first battery is less than a third value, the charge of the second battery is greater than or equal to a fourth value, and a charging device is detected.

13. A control unit, characterized in that, The control unit is used to control the first switching unit to disconnect the connection between the at least one battery and the power module when the power of at least one battery meets the first preset condition. Upon detecting user interaction, the control unit is further configured to control the first switching unit to connect the at least one battery to the power module.

14. The control unit according to claim 13, characterized in that, Upon detecting the user operation, the control unit is specifically configured to transmit a control signal to the first switching unit; the control signal is used to instruct the connection of the at least one battery to the power module.

15. The control unit according to claim 13 or 14, characterized in that, After the control unit controls the first switching unit to disconnect the connection between the at least one battery and the power module, the control unit is in a power-off state or a sleep state.

16. The control unit according to any one of claims 13-15, characterized in that, The at least one battery includes: a first battery and a second battery; The control unit is further configured to, when the first battery and the second battery meet the second preset conditions, control the connection of the power transfer path between the first battery and the second battery, so that the first battery transfers power to the second battery.

17. The control unit according to claim 16, characterized in that, The control unit is also used to control the first switching unit to maintain the connection between the at least one battery and the power consumption module when the first battery transfers power to the second battery.

18. The control unit according to claim 16 or 17, characterized in that, The control unit is further configured to control the power transfer path to disconnect the connection between the first battery and the second battery when the first battery and the second battery meet a third preset condition; The third preset condition includes: the charge of the first battery is less than a third value, the charge of the second battery is greater than or equal to a fourth value, and a charging device is detected.

19. An electronic device, characterized in that, include: The power module and the power supply circuit according to any one of claims 1-12; The power supply circuit is used to supply power to the power-consuming module.

20. A power supply method, characterized in that, Applied to the power supply circuit according to any one of claims 1-12, the method comprises: When the power of at least one battery meets the first preset condition, the control unit controls the first switching unit to disconnect the connection between at least one battery and the power module. Upon detecting user interaction, the triggering unit or the control unit controls the first switching unit to connect the at least one battery to the power module.

21. The method according to claim 20, characterized in that, The method further includes: When the first battery and the second battery meet the second preset conditions, the control unit controls the power transfer path to connect, so that the first battery transfers power to the second battery.

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