Control circuit of charger and charger

Abstract

The application relates to the charging technical field and discloses a control circuit of a charger and the charger, wherein the control circuit comprises a power conversion module, a discharge interface module, an energy storage module and a communication module; an input end of the power conversion module is used for being connected with a power supply; an output end of the power conversion module is electrically connected with an input end of the discharge interface module; an output end of the discharge interface module is used for being connected with a load; an input end of the energy storage module is electrically connected with the output end of the power conversion module; a power supply end of the communication module is connected with an output end of the energy storage module; the communication module is used for being communicatively connected with a terminal device and sending a positioning signal to the terminal device. The charger can supply power for the load and send the positioning signal to the terminal device, so that the device anti-lost positioning and remote communication control are realized.

Description

Technical Field

[0001] This application relates to the field of charging technology, and in particular to a control circuit for a charger and a charger. Background Technology

[0002] With the widespread use of electronic devices, chargers have become an indispensable accessory in people's daily lives. Whether it's a smartphone, tablet, or laptop, they all require a charger for power. Chargers are used in a wide range of scenarios, including homes, offices, travel, and public places. Due to their small size and high frequency of use, chargers are easily lost by users while traveling or working. Once lost, they are often difficult to find, causing considerable inconvenience and affecting the normal use of electronic devices. Utility Model Content

[0003] In view of this, the present application provides a control circuit and charger for a charger, which can effectively solve the problems in the prior art where chargers are easily lost, causing many inconveniences to users and affecting the normal use of electronic devices.

[0004] In a first aspect, embodiments of this application provide a control circuit for a charger, including: a power conversion module, a discharge interface module, an energy storage module, and a communication module; The input terminal of the power conversion module is used to connect to a power source, the output terminal of the power conversion module is electrically connected to the input terminal of the discharge interface module, and the output terminal of the discharge interface module is used to connect to a load. The input terminal of the energy storage module is electrically connected to the output terminal of the power conversion module, and the output terminal of the energy storage module is connected to the power terminal of the communication module. The communication module is used to communicate with the terminal device and send positioning signals to the terminal device.

[0005] In some embodiments, the control circuit further includes a discharge control module, the input terminal of which is connected to the output terminal of the power conversion module, the output terminal of which is electrically connected to the input terminal of the discharge interface module, and the control terminal of which is electrically connected to the communication module. The communication module responds to the control signal of the terminal device to control the on and off of the discharge control module.

[0006] In some embodiments, the control circuit further includes a charging control module, the input terminal of which is electrically connected to the output terminal of the power conversion module, and the output terminal of which is connected to the input terminal of the energy storage module.

[0007] In some embodiments, the power detection terminal of the communication module is electrically connected to the output terminal of the power conversion module. The communication module is also used to enter a pairing mode if it has not established a communication connection with the terminal device after detecting the power supply access. In the pairing mode, the communication module establishes a communication connection with the terminal device.

[0008] In some embodiments, the power detection terminal of the communication module is electrically connected to the energy storage module, and the communication module is further configured to obtain the current power of the energy storage module and transmit the current power to the terminal device.

[0009] In some embodiments, the circuit further includes a switching module, the input of which is connected to the power supply, and the output of which is connected to the input of the power conversion module.

[0010] In some embodiments, the discharge interface module includes a USB Type-A interface and a USB Type-C interface, the input terminals of the USB Type-A interface and the USB Type-C interface are electrically connected to the output terminal of the power conversion module, and the output terminals of the USB Type-A interface and the USB Type-C interface are respectively used to connect to the load.

[0011] In some embodiments, the control circuit further includes a first fast charging protocol module and a second fast charging protocol module; The first fast charging protocol module is electrically connected to the power conversion module and the USB Type-A interface. The first fast charging protocol module is used to communicate with the load connected to the USB Type-A interface through a corresponding communication protocol. The second fast charging protocol module is electrically connected to the power conversion module and the USB Type-C interface. The second fast charging protocol module is used to communicate with the load connected to the USB Type-C interface through a corresponding communication protocol.

[0012] In some embodiments, the circuit further includes an alarm module electrically connected to the communication module, the alarm module being used to generate an alarm signal in response to a trigger signal sent by the communication module.

[0013] Secondly, embodiments of this application provide a charger, the charger including the control circuit of at least one charger as described in the first aspect above.

[0014] The embodiments of this application have the following beneficial effects: The control circuit of this application includes: a power conversion module, a discharge interface module, an energy storage module, and a communication module. The input terminal of the power conversion module is connected to a power source, and its output terminal is electrically connected to the input terminal of the discharge interface module, which is used to connect to a load. The input terminal of the energy storage module is electrically connected to the output terminal of the power conversion module, and its output terminal is connected to the power supply terminal of the communication module. The communication module is used to communicate with a terminal device and send a location signal to the terminal device. The power conversion module converts external power into an adaptive voltage to power subsequent circuits. The discharge interface module connects to an external load to achieve power output. The energy storage module provides a continuous and stable power supply to the communication module, ensuring it can maintain basic communication functions even after the external power supply is disconnected. The communication module not only enables wireless connection with the terminal device but also actively sends location signals, allowing users to locate the charger's position in real time via the terminal device. This effectively solves the problem of charger loss and provides a technical foundation for remote control, status monitoring, and other functions, improving the charger's intelligence and safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A first structural schematic diagram of the control circuit of the charger according to an embodiment of this application is shown; Figure 2 A second structural schematic diagram of the control circuit of the charger according to an embodiment of this application is shown; Figure 3 A circuit diagram of the discharge control module according to an embodiment of this application is shown; Figure 4 The circuit diagram of the charging control module and the energy storage module according to an embodiment of this application is shown; Figure 5 A circuit diagram of the second fast charging protocol module according to an embodiment of this application is shown.

[0017] Explanation of key component symbols: 10: Power conversion module; 20: Discharge interface module; 201: USB Type-A interface; 202: USB Type-C interface; 30: Energy storage module; 40: Communication module; 50: Load; 60: Terminal device; 70: Discharge control module; 80: Charging control module; 90: First fast charging protocol module; 100: Second fast charging protocol module; 110: Alarm module; 120: Switching switch module. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0019] The components of the embodiments of this application described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] In the following text, the terms "comprising," "having," and their cognates, which may be used in various embodiments of this application, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more combinations thereof. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be construed as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.

[0022] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features described herein can be combined with each other.

[0023] Considering that chargers are easily lost in existing technologies, causing inconvenience to users and affecting the normal use of electronic devices, the power conversion module 10 of this application is responsible for converting external power into an adaptive voltage to power subsequent circuits; the discharge interface module 20 is used to connect to the external load 50 to realize power output; the energy storage module 30 provides a continuous and stable working power to the communication module 40, ensuring that it can still maintain basic communication functions after the external power is disconnected; the communication module 40 not only realizes wireless connection with the terminal device 60, but also actively sends positioning signals, enabling users to locate the charger's position in real time through the terminal device 60, thereby effectively solving the problem of chargers being easily lost, and providing a technical basis for remote control, status monitoring and other functions, improving the charger's intelligence level and safety of use.

[0024] The control circuit of the charger will be described below with reference to some specific embodiments.

[0025] Figure 1 A schematic diagram of a control circuit for a charger according to an embodiment of this application is shown. Exemplarily, the control circuit of this charger includes: a power conversion module 10, a discharge interface module 20, an energy storage module 30, and a communication module 40.

[0026] Specifically, the input terminal of the power conversion module 10 is used to connect to a power source, and the output terminal of the power conversion module 10 is electrically connected to the input terminal of the discharge interface module 20. The output terminal of the discharge interface module 20 is used to connect to the load 50. The power conversion module 10 can be any type of power conversion circuit. The power conversion module 10 is used to step down the power signal and supply power to the load 50 through the discharge interface module 20. Exemplarily, the power source is represented by L and N.

[0027] The discharge interface module 20 can be configured according to the actual application. The discharge interface module 20 can be at least one of USB Type-A interface 201, USB Type-C interface 202 and Lightning.

[0028] The input terminal of the energy storage module 30 is electrically connected to the output terminal of the power conversion module 10, and the output terminal of the energy storage module 30 is connected to the power supply terminal of the communication module 40. The energy storage module 30 can be configured according to the actual application. For example, the energy storage module 30 is an energy storage battery. The energy storage battery is charged when the charger is connected to the power supply, and supplies power to the communication module 40 after the power is disconnected, so as to ensure that communication can still be carried out after the power is disconnected.

[0029] The communication module 40 is used to communicate with the terminal device 60 and send location signals to the terminal device 60. It is understood that the communication module 40 can be any type of communication module; exemplary, the communication module 40 is a Bluetooth module. While communicating with the terminal device 60 (such as a mobile phone or computer) via Bluetooth, the terminal device 60 can also obtain the charger's location signal.

[0030] For example, if terminal device 60 is an Apple electronic device, when using terminal device 60 to locate a charger, if the charger is within the Bluetooth range of terminal device 60, the charger connects to terminal device 60 via Bluetooth module and sends a location signal to terminal device 60; if the charger is not within the Bluetooth range of terminal device 60, the charger's Bluetooth module can search for nearby Apple electronic devices and send a location signal to the nearby electronic devices, allowing terminal device 60 to obtain the charger's location based on the location signal of the nearby electronic devices. Furthermore, terminal device 60 can generate a corresponding search route based on the location signal, allowing the user to find the charger according to the search route.

[0031] The control circuit of the charger in this embodiment of the application sets a power conversion module 10 to step down the input power signal and supplies power to the load 50 through the discharge interface module 20. At the same time, an energy storage module 30 is introduced into the circuit to store energy when the power is connected and to continue to supply power to the communication module 40 after the power is disconnected, thereby ensuring the continuity of the communication function. Furthermore, by configuring the communication module 40 to communicate with the terminal device 60, the charger can directly send a positioning signal when the charger and the terminal device 60 are within the communication range, or send a positioning signal through a nearby device when the communication range is outside the communication range. This allows the terminal device 60 to obtain the location information of the charger based on the positioning signal and generate a search route, thereby effectively solving the problem that users are prone to losing the charger in actual use and improving the convenience and intelligence level of the charger.

[0032] As an alternative solution, Figure 2 This paper shows another schematic diagram of the control circuit of the charger according to an embodiment of the present application.

[0033] In one embodiment, based on the above embodiments, such as Figure 2 As shown, the control circuit also includes a discharge control module 70. The input terminal of the discharge control module 70 is connected to the output terminal of the power conversion module 10, the output terminal of the discharge control module 70 is electrically connected to the input terminal of the discharge interface module 20, and the control terminal of the discharge control module 70 is electrically connected to the communication module 40. The communication module 40 responds to the control signal of the terminal device 60 and controls the discharge control module 70 to turn on and off.

[0034] For example, the corresponding software of the terminal device 60 can be used to send corresponding signals to the communication module 40, causing the communication module 40 to control the discharge control module 70 to turn on or off, or to turn on or off after connecting to a power source, or to turn on when entering the Bluetooth connection range or turn off when leaving the Bluetooth connection range, etc., which can be set according to the actual application. Furthermore, the power supply signal input to the load 50 can be adjusted through the control of the discharge control module 70 by the communication module 40.

[0035] Understandably, the discharge control module 70 can be any type of switching module, such as a switching transistor, relay, or optocoupler. Example, such as... Figure 3 As shown, the discharge control module 70 includes a first switch Q2 and a second switch U6. The control terminal of the first switch Q2 is connected to the communication module 40, the input terminal of the first switch Q2 is connected to the control terminal of the second switch U6, the input terminal of the second switch U6 is connected to the output terminal of the power conversion module 10, and the output terminal of the second switch U6 is connected to the input terminals of the first fast charging protocol module 90 and the second fast charging protocol module 100.

[0036] The charger control circuit provided in this application embodiment adds a discharge control module 70. The discharge control module 70 is turned on or off via the communication module 40, realizing intelligent regulation of the power output of the discharge interface module 20. Specifically, the user can send control commands through the terminal device 60, which are transmitted to the discharge control module 70 via the communication module 40, thereby controlling its on or off state and thus controlling whether to supply power to the load 50. This solution not only improves the flexibility and safety of the charger, such as cutting off the power supply when not in use to avoid energy waste or overload risk, but also supports remote control, automatic control and other functions, further enhancing the intelligent management capability of the charger and the user experience.

[0037] In one embodiment, based on the above embodiments, such as Figure 2 As shown, the control circuit also includes a charging control module 80. The input terminal of the charging control module 80 is electrically connected to the output terminal of the power conversion module 10, and the output terminal of the charging control module 80 is connected to the input terminal of the energy storage module 30.

[0038] Furthermore, such as Figure 4 As shown, the charging control module 80 is chip U4, and the energy storage module 30 is BT1. The input terminal of the charging control module 80 can be equipped with a voltage regulator U3 to regulate the signal of the power conversion module 10. The input terminal of the voltage regulator U3 is connected to the output terminal of the power conversion module 10, and the output terminal of the voltage regulator U3 is connected to the input terminal of the charging control module 80. The charging control module 80 can control the charging of the energy storage module 30 according to the signal of the voltage regulator U3.

[0039] The charger control circuit of this embodiment includes a charging control module 80, with a voltage regulator U3 at its input. By regulating the output signal of the power conversion module 10, the stability of the power signal input to the charging control module 80 is improved, thereby achieving precise control of the charging process of the energy storage module 30. This solution effectively avoids the risk of abnormal charging or damage to the energy storage module 30 due to input voltage fluctuations, improving charging safety and efficiency. At the same time, through the intelligent adjustment function of the charging control module 80, dynamic management of the charging status of the energy storage module 30 can be achieved, providing a more stable and reliable energy management solution for the charger in complex power environments, further improving the overall performance and service life of the equipment.

[0040] Furthermore, such as Figure 4 As shown, the power detection terminal of the communication module 40 is connected to the output terminal of the power conversion module 10 via resistor R5. This connection is used to detect whether power is connected based on the signal from the output terminal of the power conversion module 10. After detecting power connection, it determines whether to establish a communication connection with the terminal device 60. If no communication connection is established with the terminal device 60, it enters pairing mode, where the communication module 40 establishes a communication connection with the terminal device 60. If no communication connection is established with the terminal device 60 within a preset time after entering pairing mode, it exits pairing mode. The terminal device 60 cannot pair with the communication module 40 at this time. If the terminal device 60 needs to re-pair the charger, the charger needs to be connected to the power source again. The preset time can be set according to the actual application.

[0041] Furthermore, the terminal device 60 can be equipped with corresponding software to manage the pairing with the Bluetooth module, and the user can send corresponding commands to the Bluetooth module through the software to control the charger.

[0042] For example, if communication module 40 is paired with terminal device 60, the corresponding software displays the charger corresponding to communication module 40. The user can unpair the connection with this communication module 40 through the software, but cannot unpair the connection with terminal device 60 using the charger. Furthermore, if the charger has already been paired with a terminal device 60, it cannot be paired with other terminal devices 60. Therefore, if the charger is lost, the user can use terminal device 60 to control the discharge control module 70 to supply power to the load 50, thus proving that the current charger is the user's lost charger.

[0043] By setting a power detection function in the communication module 40 and connecting the power detection terminal of the communication module 40 to the output terminal of the power conversion module 10 using resistor R5, the pairing mechanism of the communication module 40 is automatically triggered when power is connected, realizing intelligent connection and management with the terminal device 60. If pairing is not completed within a preset time, the pairing mode is automatically exited to prevent invalid connections and improve the safety and convenience of device use. At the same time, through the management software in the terminal device 60, users can remotely control and manage the paired chargers, and the charger only supports pairing with a single terminal device 60, effectively preventing unauthorized access. This mechanism not only enhances the user's control over the charger, but also enables remote intervention in the power supply status by controlling the discharge control module 70 when the charger is lost, further improving the safety and intelligent management level of the device.

[0044] Furthermore, such as Figure 4 As shown, the power detection terminal of the communication module 40 is connected to the energy storage module 30 through resistor R6. The communication module 40 is used to obtain the current power level of the energy storage module 30 and transmit the current power level to the terminal device 60. This enables remote monitoring of the power status of the energy storage module 30, allowing users to know the remaining power of the energy storage module 30 inside the charger in a timely manner. This facilitates timely charging when the power is low and avoids communication interruption due to the energy storage module 30 running out of power, which would affect the charger's positioning and control functions. This effectively improves the reliability and intelligence level of the charger, and enhances the user experience and the convenience of device management.

[0045] In one embodiment, based on the above embodiments, such as Figure 2 As shown, the circuit also includes a switching module 120. The input terminal of the switching module 120 is connected to the power supply, and the output terminal of the switching module 120 is connected to the input terminal of the power conversion module 10. The switching module 120 can switch the input signal according to different power interface specifications to adapt to the input standard required by the power conversion module 10; effectively expanding the applicability of the charger, enabling it to be compatible with multiple power types or interface standards, and improving the charger's compatibility and flexibility in different usage environments.

[0046] In one embodiment, based on the above embodiments, such as Figure 2As shown, the discharge interface module 20 includes a USB Type-A interface 201 and a USB Type-C interface 202. The input terminals of the USB Type-A interface 201 and the USB Type-C interface 202 are electrically connected to the output terminals of the power conversion module 10. The output terminals of the USB Type-A interface 201 and the USB Type-C interface 202 are respectively used to connect to the load 50. It is understood that the number of USB Type-A interfaces 201 and USB Type-C interfaces 202 can be set according to the actual application. One USB Type-A interface 201 and one USB Type-C interface 202 can be set, or two USB Type-A interfaces 201 and one USB Type-C interface 202 can be set. The USB Type-A port 201 and USB Type-C port 202 are used to connect different types of load devices 50, thereby achieving compatible power supply for devices with multiple interface standards. This improves the charger's adaptability and ease of use. Users can flexibly choose the interface according to the type of load device 50, eliminating the need to carry multiple charging cables. At the same time, the number of the two types of ports can be flexibly configured according to actual application needs, further enhancing the charger's applicability and practicality in scenarios where multiple devices are charged simultaneously, thereby improving user experience and product market competitiveness.

[0047] Furthermore, the control circuit also includes a first fast charging protocol module 90 and a second fast charging protocol module 100. The first fast charging protocol module 90 is electrically connected to the power conversion module 10 and the USB Type-A interface 201. The first fast charging protocol module 90 is used to communicate with the load 50 connected to the USB Type-A interface 201 via a corresponding communication protocol. Specifically, the first fast charging protocol negotiates voltage requirements with the load 50 connected to the USB Type-A interface 201 via the corresponding communication protocol, controlling the USB Type-A interface 201 to output a matching voltage signal.

[0048] The second fast charging protocol module 100 is electrically connected to the power conversion module 10 and the USB Type-C interface 202. The second fast charging protocol module 100 is used to communicate with the load 50 connected to the USB Type-C interface 202 via a corresponding communication protocol. Specifically, the second fast charging protocol negotiates voltage requirements with the load 50 connected to the USB Type-C interface 202 via the corresponding communication protocol, controlling the USB Type-C interface 202 to output a matching voltage signal.

[0049] Exemplary, such as Figure 5As shown, the second fast charging protocol module 100 is a chip U13, which can be configured with a switch Q4. The control terminal of the switch Q4 is connected to the chip U13. The second fast charging protocol module 100 can protect the load 50 by turning off the switch Q4.

[0050] This application embodiment sets up a first fast charging protocol module 90 and a second fast charging protocol module 100 in the control circuit, which are respectively connected to the USB Type-A interface 201 and the USB Type-C interface 202, to achieve intelligent fast charging protocol adaptation for different types of load devices 50. The two fast charging protocol modules can negotiate voltage requirements with the load 50 through their respective communication protocols, thereby controlling the corresponding interface to output a matching voltage signal, improving charging efficiency and safety. Furthermore, the second fast charging protocol module 100 can protect the circuit of the load 50 by turning off the switching transistor when an abnormality is detected, enhancing the stability and reliability of the system.

[0051] In one embodiment, based on the above embodiments, such as Figure 2 As shown, the circuit also includes an alarm module 110 electrically connected to the communication module 40. The alarm module 110 generates an alarm signal in response to a trigger signal sent by the communication module 40. Specifically, the alarm module 110 can be configured according to the actual application. For example, the alarm module 110 is a buzzer.

[0052] Understandably, when the terminal device 60 searches for the charger, the communication module 40 generates a trigger signal based on the device search signal from the terminal device 60 to trigger an alarm. Furthermore, the alarm module 110 can also be used to indicate the status of the charger. For example, when the communication module 40 detects power input, it controls the alarm module 110 to generate a first indication signal to indicate that the charger is powered on. When the terminal device 60 cancels pairing with the communication module 40, the communication module 40 can control the alarm module 110 to generate a second indication signal. The alarm signal, the first indication signal, and the second indication signal can be set according to the actual application.

[0053] This application also provides a charger, exemplary of which includes the control circuitry of the charger described above.

[0054] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that, in alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0055] In addition, the functional modules or units in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0056] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a smartphone, personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0057] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A control circuit for a charger, characterized in that, include: Power conversion module, discharge interface module, energy storage module, and communication module; The input terminal of the power conversion module is used to connect to a power source, the output terminal of the power conversion module is electrically connected to the input terminal of the discharge interface module, and the output terminal of the discharge interface module is used to connect to a load. The input terminal of the energy storage module is electrically connected to the output terminal of the power conversion module, and the output terminal of the energy storage module is connected to the power terminal of the communication module. The communication module is used to communicate with the terminal device and send positioning signals to the terminal device.

2. The control circuit of the charger according to claim 1, characterized in that, The control circuit further includes a discharge control module, the input terminal of which is connected to the output terminal of the power conversion module, the output terminal of which is electrically connected to the input terminal of the discharge interface module, and the control terminal of which is electrically connected to the communication module. The communication module responds to the control signal of the terminal device to control the on and off of the discharge control module.

3. The control circuit of the charger according to claim 1, characterized in that, The control circuit also includes a charging control module, the input terminal of which is electrically connected to the output terminal of the power conversion module, and the output terminal of which is connected to the input terminal of the energy storage module.

4. The control circuit of the charger according to claim 1, characterized in that, The power detection terminal of the communication module is electrically connected to the output terminal of the power conversion module. The communication module is also used to enter a pairing mode if it has not established a communication connection with the terminal device after detecting the power supply. In the pairing mode, the communication module establishes a communication connection with the terminal device.

5. The control circuit of the charger according to claim 1, characterized in that, The power detection terminal of the communication module is electrically connected to the energy storage module. The communication module is also used to obtain the current power of the energy storage module and transmit the current power to the terminal device.

6. The control circuit of the charger according to claim 1, characterized in that, The circuit also includes a switching module, the input of which is connected to the power supply, and the output of which is connected to the input of the power conversion module.

7. The control circuit of the charger according to claim 1, characterized in that, The discharge interface module includes a USB Type-A interface and a USB Type-C interface. The input terminals of the USB Type-A interface and the USB Type-C interface are electrically connected to the output terminals of the power conversion module. The output terminals of the USB Type-A interface and the USB Type-C interface are respectively used to connect to the load.

8. The control circuit of the charger according to claim 7, characterized in that, The control circuit also includes a first fast charging protocol module and a second fast charging protocol module. The first fast charging protocol module is electrically connected to the power conversion module and the USB Type-A interface. The first fast charging protocol module is used to communicate with the load connected to the USB Type-A interface through a corresponding communication protocol. The second fast charging protocol module is electrically connected to the power conversion module and the USB Type-C interface. The second fast charging protocol module is used to communicate with the load connected to the USB Type-C interface through a corresponding communication protocol.

9. The control circuit of the charger according to claim 1, characterized in that, The circuit also includes an alarm module electrically connected to the communication module, the alarm module being used to generate an alarm signal in response to a trigger signal sent by the communication module.

10. A charger, characterized in that, The charger includes: the control circuit of the charger according to any one of claims 1-9.

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