Mobile power supply control circuit with fast charging function and mobile power supply

Abstract

The utility model discloses a mobile power supply control circuit with a fast charging function and a mobile power supply. The mobile power supply control circuit with the fast charging function comprises a main control module, a mobile power supply fast charging management module, a buck-boost driving module, a battery protection module with an equalization function, a display module, a voltage input and output interface module and a battery pack. The main control module is electrically connected with the display module and the mobile power supply fast charge management module, the mobile power supply fast charge management module is electrically connected with the buck-boost driving module and the battery protection module with the equalization function, and the battery protection module with the equalization function is electrically connected with the battery pack; the buck-boost driving module is electrically connected with the voltage input and output interface module. According to the utility model, rapid charging control of the high-power mobile power supply can be realized, reliability is high, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power supplies, and particularly relates to a mobile power supply control circuit and a mobile power supply with a fast charging function. Background Technique

[0002] With the development of technology, mobile devices play an increasingly important role in our daily lives. However, the battery capacity of mobile devices is limited and cannot meet the needs of users for long-term use. To solve this problem, mobile power supplies have emerged. A mobile power supply is a portable power device that can charge mobile devices and solve the charging needs of users when outdoors or unable to connect to a power outlet.

[0003] Traditional mobile power supplies usually adopt ordinary charging methods, with a slow charging speed and unable to meet the user's demand for fast charging. Especially in the case of urgent charging, users hope that the mobile power supply can charge the device as soon as possible for continued use. Therefore, mobile power supplies with fast charging functions are gradually favored by users.

[0004] To achieve the fast charging function, a mobile power supply control circuit with a fast charging function is required. This circuit needs to be able to identify the charging needs of the device and provide corresponding charging current and voltage to ensure that the device can be charged quickly. However, there are some problems with existing mobile power supply control circuits. Some circuits, although having the fast charging function, cannot identify the charging needs of the device, resulting in poor charging effects. Other circuits can identify the charging needs of the device, but cannot provide corresponding charging current and voltage, resulting in a slow charging speed. In addition, the protection functions of some circuits are not perfect, presenting certain safety hazards.

[0005] Therefore, it is necessary to study a mobile power supply control circuit and a mobile power supply with a fast charging function, which can identify the charging needs of the device, provide corresponding charging current and voltage, and at the same time have perfect protection functions to ensure charging effects and safety. Summary of the Utility Model

[0006] The purpose of this application is to provide a mobile power supply control circuit and a mobile power supply with a fast charging function. In this solution, fast charging control of a high-power mobile power supply can be achieved, with high reliability and improved user experience.

[0007] To solve the above technical problems, this application provides a mobile power supply control circuit with a fast charging function, including a main control module, a mobile power supply fast charging management module, a buck-boost drive module, a battery protection module with a balancing function, a display module, a voltage input / output interface module, and a battery pack;

[0008] The main control module is electrically connected to the display module and the mobile power fast charging management module respectively. The mobile power fast charging management module is electrically connected to the buck-boost drive module and the battery protection module with equalization function respectively. The battery protection module with equalization function is electrically connected to the battery pack;

[0009] The buck-boost drive module is electrically connected to the voltage input / output interface module.

[0010] Preferably, the mobile power fast charging management module is built-in with a QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

[0011] Preferably, the display module is set as a digital tube.

[0012] Preferably, the mobile power control circuit with fast charging function further includes a DIP switch module;

[0013] The DIP switch module is electrically connected to the battery protection module with equalization function.

[0014] Preferably, the mobile power control circuit with fast charging function further includes a key module;

[0015] The key module is electrically connected to the mobile power fast charging management module.

[0016] Preferably, the buck-boost drive module includes a boost switch unit, a buck switch unit and an inductive energy storage unit;

[0017] The inductive energy storage unit is electrically connected to the boost switch unit and the buck switch unit respectively. The boost switch unit is electrically connected to the mobile power fast charging management module, the buck switch unit and the battery pack respectively. The buck switch unit is electrically connected to the mobile power fast charging management module and the battery pack respectively.

[0018] Preferably, the boost switch unit includes a first boost switch sub-unit and a second boost switch sub-unit;

[0019] The first boost switch sub-unit is electrically connected to the inductive energy storage unit, the buck switch unit and the mobile power fast charging management module respectively;

[0020] The second boost switch sub-unit is electrically connected to the inductive energy storage unit, the buck switch unit and the mobile power fast charging management module respectively.

[0021] Preferably, the battery pack is set as a plurality of lithium batteries connected in series.

[0022] Preferably, the voltage input / output interface module is set as a TYPEC interface or a USB-A interface.

[0023] To solve the above technical problems, the present application provides a mobile power control device with a fast charging function, including the above-mentioned mobile power control circuit with a fast charging function.

[0024] A mobile power control circuit and a mobile power with a fast charging function of the present utility model have the following beneficial effects. A mobile power control circuit with a fast charging function disclosed by the present utility model includes: a main control module, a mobile power fast charging management module, a buck-boost driving module, a battery protection module with an equalization function, a display module, a voltage input / output interface module, and a battery pack; the main control module is electrically connected to the display module and the mobile power fast charging management module respectively, the mobile power fast charging management module is electrically connected to the buck-boost driving module and the battery protection module with an equalization function respectively, the battery protection module with an equalization function is electrically connected to the battery pack; the buck-boost driving module is electrically connected to the voltage input / output interface module. Therefore, the present utility model can achieve fast charging control of a high-power mobile power, with high reliability and improved user experience. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0026] Figure 1 It is a schematic block diagram of the principle of a mobile power control circuit with a fast charging function in a preferred embodiment of the present utility model.

[0027] Figure 2 It is a schematic block diagram of the principle of a mobile power control circuit with a fast charging function in another preferred embodiment of the present utility model.

[0028] Figure 3 It is a circuit schematic diagram of the mobile power fast charging management module of a mobile power control circuit with a fast charging function in a preferred embodiment of the present utility model.

[0029] Figure 4 It is a circuit schematic diagram of the DIP switch module of a mobile power control circuit with a fast charging function in a preferred embodiment of the present utility model.

[0030] Figure 5 It is a circuit schematic diagram of the key module of a mobile power control circuit with a fast charging function in a preferred embodiment of the present utility model.

[0031] Figure 6 It is the circuit schematic diagram of the buck-boost drive module of a mobile power control circuit with a fast charging function in a preferred embodiment of the present utility model.

[0032] Figure 7 It is the circuit schematic diagram of the connection between the battery protection module with an equalization function and the battery pack of a mobile power control circuit with a fast charging function in a preferred embodiment of the present utility model. Detailed implementation manners

[0033] The core of this application is to provide a mobile power control circuit and a mobile power with a fast charging function. In this solution, it can achieve fast charging control of a high-power mobile power, with high reliability and improved user experience.

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application.

[0035] Please refer to Figure 1 , Figure 1 which is the schematic block diagram of the principle of a mobile power control circuit with a fast charging function provided by this application, including a main control module 1, a mobile power fast charging management module 2, a buck-boost drive module 3, a battery protection module 4 with an equalization function, a display module 5, a voltage input / output interface module 6, and a battery pack 7;

[0036] The main control module 1 is electrically connected to the display module and the mobile power fast charging management module 2 respectively. The mobile power fast charging management module 2 is electrically connected to the buck-boost drive module 3 and the battery protection module 4 with an equalization function respectively. The battery protection module 4 with an equalization function is electrically connected to the battery pack 7;

[0037] The buck-boost drive module 3 is electrically connected to the voltage input / output interface module 6.

[0038] In the prior art, there are some problems in the mobile power control circuit. Although some circuits have the fast charging function, they cannot identify the charging requirements of the device, resulting in poor charging effects. Although some other circuits can identify the charging requirements of the device, they cannot provide the corresponding charging current and voltage, resulting in a slow charging speed. In addition, the protection functions of some circuits are not perfect, presenting certain potential safety hazards.

[0039] In view of the above disadvantages, in this application, the fast charging control of a high-power mobile power supply is realized through the cooperation of the main control module 1, the mobile power fast charging management module 2, the buck-boost drive module 3, the battery protection module 4 with balancing function, the display module 5, the voltage input / output interface module 6, and the battery pack 7.

[0040] Specifically, in this embodiment, the main control module 1 is set as an MCU (Microcontroller Unit, also known as a single-chip microcomputer (Single Chip Microcomputer) or a microcontroller, which appropriately reduces the frequency and specifications of the central processing unit (Central Process Unit; CPU), and integrates peripherals such as memory, counter (Timer), USB, A / D conversion, UART, PLC, DMA, and even the LCD drive circuit on a single chip to form a chip-level computer. The model of the main control module is not specifically limited.

[0041] Specifically, in this embodiment, the main control module 1 is used to implement the monitoring and control of the mobile power supply system. The main control module 1 adjusts the charging and discharging processes of the system by detecting the input voltage and output current, as well as the user operation input. In addition, the main control module 1 is also used to communicate with the display module 5 to display the current working status and battery power information to the user.

[0042] Specifically, in this embodiment, the mobile power fast charging management module 2 is used to identify the charging requirements of the connected device and dynamically adjust the charging current and voltage according to these requirements. It can be understood that the mobile power fast charging management module 2 can ensure that the connected device charges at the fastest speed under the premise of safety through the built-in optimized power management algorithm.

[0043] Specifically, in this embodiment, the buck-boost drive module 3 is used to adjust the output voltage and current according to the instructions of the mobile power fast charging management module 2. When the voltage of the battery pack 7 is higher than the voltage required by the connected device, the buck-boost drive module 3 will perform buck control; when the voltage of the battery pack 7 is lower than the voltage required by the connected device, boost control will be performed. Therefore, this application can ensure that the connected device obtains a stable charging voltage.

[0044] Specifically, in this embodiment, the battery protection module 4 with balancing function is used to protect the battery pack and prevent abnormal conditions such as overcharging, over-discharging, overcurrent, and short circuits. The balancing function in the battery protection module 4 with balancing function ensures that each battery cell in the battery pack 7 can be evenly charged and discharged, thereby extending the service life of the battery pack.

[0045] Specifically, in this embodiment, the display module 5 is used to display the working status of the mobile power supply to the user, including the current battery level, charging status, fast charging status, etc. The user can understand the real-time information of the mobile power supply through the display module 5.

[0046] Specifically, in this embodiment, on the one hand, the voltage input / output interface module 6 is the interface for connecting the mobile power supply to external devices. The voltage input / output interface module 6 provides a stable output voltage and current for external devices to charge; on the other hand, the voltage input / output interface module 6 is used to connect to the adapter to charge the mobile power supply.

[0047] Specifically, in this embodiment, the battery pack 7 is connected to the battery protection module 4 with an equalization function, ensuring the safety and efficiency of the charging and discharging processes.

[0048] In summary, the present application provides a control circuit for a mobile power supply with a fast charging function. In this solution, it includes a main control module 1, a mobile power supply fast charging management module 2, a buck-boost drive module 3, a battery protection module 4 with an equalization function, a display module 5, a voltage input / output interface module 6, and a battery pack 7; the main control module 1 is electrically connected to the display module and the mobile power supply fast charging management module 2 respectively, the mobile power supply fast charging management module 2 is electrically connected to the buck-boost drive module 3 and the battery protection module 4 with an equalization function respectively, the battery protection module 4 with an equalization function is electrically connected to the battery pack 7; the buck-boost drive module 3 is electrically connected to the voltage input / output interface module 6. Therefore, the present utility model can achieve fast charging control of a high-power mobile power supply, with high reliability and improved user experience.

[0049] Based on the above embodiments:

[0050] Please refer to Figure 2 , Figure 2 , which is a schematic block diagram of the principle of a control circuit for a mobile power supply with a fast charging function provided by the present application.

[0051] Please refer to Figure 3 , Figure 3 , which is a circuit schematic diagram of a mobile power supply fast charging management module provided by the present application.

[0052] As a preferred embodiment, the mobile power supply fast charging management module 2 is built-in with a QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit, and a temperature sampling unit.

[0053] It should be noted that the present application is built-in with a QC fast charging protocol control unit and a PD fast charging protocol control unit. Therefore, the power bank of the present application can provide fast charging for a variety of devices. Regardless of which fast charging standard the device supports, efficient charging performance can be achieved. In addition, the fast charging protocol control unit dynamically adjusts the output power according to the charging requirements of the device, which not only improves the charging speed, but also optimizes the energy conversion efficiency and reduces energy loss.

[0054] Specifically, by real-time monitoring of current, voltage and temperature, the fast charging management module of the present application can ensure that the charging process is carried out within a safe range, reducing the risks of overcurrent, overvoltage and overheating, and improving the safety of users using the power bank.

[0055] As a preferred embodiment, the display module 5 is set as a digital tube. In another embodiment, the display module 5 can also be implemented by an LED display screen or an LCD display screen, which is not specifically limited herein.

[0056] Please refer to Figure 4 , Figure 4 which is the circuit schematic diagram of a DIP switch module provided by the present application.

[0057] As a preferred embodiment, a power bank control circuit with fast charging function further includes a DIP switch module 8;

[0058] The DIP switch module 8 is electrically connected to the battery protection module 4 with balancing function.

[0059] Specifically, in this embodiment, when the power bank is connected to different external devices and charges devices with different voltage requirements, the DIP switch module 8 is used to set the output voltage of the power bank to ensure that the external device can be charged with an appropriate voltage, while protecting the device from damage caused by too high or too low voltage. Therefore, the present application has high reliability.

[0060] Please refer to Figure 5 , Figure 5 which is the circuit schematic diagram of a key module provided by the present application.

[0061] As a preferred embodiment, a power bank control circuit with fast charging function further includes a key module 9;

[0062] The key module 9 is electrically connected to the fast charging management module 2 of the power bank.

[0063] Specifically, in this embodiment, the key module 9 is used to implement function controls such as the power switch, fast charging mode activation, and mode switching of the power bank, which is not specifically limited herein.

[0064] Please refer to Figure 6 , Figure 6The circuit schematic diagram of a buck-boost driving module provided for this application.

[0065] As a preferred embodiment, the buck-boost driving module 3 includes a boost switch unit 31, a buck switch unit 32, and an inductive energy storage unit 33;

[0066] The inductive energy storage unit 33 is electrically connected to the boost switch unit 31 and the buck switch unit 32 respectively. The boost switch unit 31 is electrically connected to the mobile power fast charging management module 2, the buck switch unit 32, and the battery pack 7 respectively. The buck switch unit 32 is electrically connected to the mobile power fast charging management module 2 and the battery pack 7 respectively.

[0067] Specifically, when the battery voltage of the mobile power is lower than the charging voltage required by the external device, the boost switch unit 31 boosts the output voltage of the battery pack.

[0068] When the battery voltage of the mobile power is higher than the charging voltage required by the external device, the buck switch unit 32 buck-boosts the output voltage of the battery pack.

[0069] As a preferred embodiment, the boost switch unit 31 includes a first boost switch sub-unit and a second boost switch sub-unit;

[0070] The first boost switch sub-unit is electrically connected to the inductive energy storage unit, the buck switch unit, and the mobile power fast charging management module 2 respectively;

[0071] The second boost switch sub-unit is electrically connected to the inductive energy storage unit, the buck switch unit, and the mobile power fast charging management module 2 respectively.

[0072] Specifically, in the boost switch unit 31, an MOS transistor is used as a switch and is connected between the battery pack and the inductive energy storage unit 33. When the MOS transistor is turned on, the battery pack charges the inductor, and the current rises through the inductor. At the same time, the inductor stores energy. When the MOS transistor is turned off, the inductor releases energy, and the current flows through the diode to the output terminal, while charging the battery. Since the current of the inductor cannot change suddenly, the voltage at the output terminal will be higher than the battery voltage.

[0073] Specifically, in the buck switch unit 32, an MOS transistor is also used as a switch and is connected between the battery pack and the inductor. When the MOS transistor is turned on, the battery supplies power to the inductor and the output terminal, and the inductor stores energy. When the MOS transistor is turned off, the inductor releases energy and continues to supply power to the output terminal through the diode. Since the current of the inductor cannot change suddenly, the voltage at the output terminal will be lower than the battery voltage.

[0074] It can be understood that, please refer to Figure 6, the HDRV (High Drive) signal and the LDRV (Low Drive) signal generally refer to two signals that control the switching of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors). These signals are used to drive the conduction and cutoff of the MOSFETs, thereby realizing the function of the buck-boost converter.

[0075] Please refer to Figure 7 , Figure 7 This is the circuit schematic diagram of a battery protection module with an equalization function connected to a battery pack provided by this application.

[0076] As a preferred embodiment, the battery pack 7 is set as a plurality of lithium batteries connected in series.

[0077] Specifically, in this embodiment, the chip model of the battery protection module with an equalization function is set as CM1361. In another embodiment, the model of the battery protection module with an equalization function is not specifically limited.

[0078] As a preferred embodiment, the voltage input / output interface module 6 is set as a TYPEC interface or a USB-A interface.

[0079] Specifically, in this embodiment, by setting a TYPE-C interface or a USB-A interface in the voltage input / output interface module 6, the mobile power supply can adapt to the charging interface requirements of different devices. Users can choose a suitable interface for charging according to their own devices, and can also utilize the data transmission function of these interfaces. In addition, the mobile power supply of this application supports charging while discharging. When the voltage input / output interface module 6 is set as two TYPEC ports, the two TYPEC ports can charge the battery simultaneously, and the maximum charging power reaches 200W.

[0080] Therefore, this application improves the applicability and flexibility of the mobile power supply, ensuring that users can conveniently use the mobile power supply in different scenarios.

[0081] This application also provides a mobile power supply control device with a fast charging function, including a mobile power supply control circuit with a fast charging function.

[0082] For the introduction of a mobile power supply control circuit with a fast charging function provided by this application, please refer to the above embodiments, and this application will not repeat them here.

[0083] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0084] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile power control circuit with a fast charging function, characterized in that, It includes a main control module, a mobile power fast charging management module, a buck-boost driving module, a battery protection module with balancing function, a display module, a voltage input / output interface module and a battery pack; The main control module is electrically connected to the display module and the mobile power fast charging management module respectively. The mobile power fast charging management module is electrically connected to the buck-boost driving module and the battery protection module with balancing function respectively. The battery protection module with balancing function is electrically connected to the battery pack; The buck-boost driving module is electrically connected to the voltage input / output interface module.

2. The mobile power control circuit with a fast charging function according to claim 1, wherein The mobile power fast charging management module is internally provided with a QC fast charging protocol control unit, a PD fast charging protocol control unit, a current sampling unit, a voltage sampling unit and a temperature sampling unit.

3. A mobile power control circuit with a fast charging function according to claim 1, characterized in that, The display module is set as a digital tube.

4. A mobile power control circuit with a fast charging function according to claim 1, characterized in that, The mobile power control circuit with fast charging function further includes a DIP switch module; The DIP switch module is electrically connected to the battery protection module with balancing function.

5. The control circuit of a mobile power supply with a fast charging function according to claim 1, characterized in that, The mobile power control circuit with fast charging function further includes a key module; The key module is electrically connected to the mobile power fast charging management module.

6. The control circuit of a mobile power supply with a fast charging function according to claim 1, characterized in that, The buck-boost driving module includes a boost switch unit, a buck switch unit and an inductive energy storage unit; The inductive energy storage unit is electrically connected to the boost switch unit and the buck switch unit respectively. The boost switch unit is electrically connected to the mobile power fast charging management module, the buck switch unit and the battery pack respectively. The buck switch unit is electrically connected to the mobile power fast charging management module and the battery pack respectively.

7. The control circuit of a mobile power supply with a fast charging function according to claim 6, characterized in that, The boost switch unit includes a first boost switch sub-unit and a second boost switch sub-unit; The first boost switch sub-unit is electrically connected to the inductive energy storage unit, the buck switch unit and the mobile power fast charging management module respectively; The second boost switch sub-unit is electrically connected to the inductive energy storage unit, the buck switch unit and the mobile power fast charging management module respectively.

8. The control circuit of a mobile power supply with a fast charging function according to claim 1, characterized in that, The battery pack is set as multiple lithium batteries connected in series.

9. The mobile power control circuit with a fast charging function according to claim 1, characterized in that, The voltage input / output interface module is set as a TYPEC interface or a USB-A interface.

10. A mobile power supply with a fast charging function, characterized in that, It includes a mobile power control circuit with fast charging function according to any one of claims 1 to 9.

Images