Protection circuit small board of power board

Abstract

The utility model relates to the technical field of power adapter circuits, in particular to a protection circuit small board of a power board, which comprises a board body provided with a control module, a port module, a battery access detection module, a power supply module, an output voltage detection module, a battery full-charge judgment module and a charging loop module. The port module comprises a first port module and a second port module, the first port module and the second port module are arranged on the two opposite sides of the board body respectively, the first port module is used for connecting the power supply module with the control module, and the second port module is connected with the control module through the battery access detection module; and the output voltage detection module, the battery full-charge judgment module and the charging loop module are all connected with the control module. According to the utility model, the first port module and the second port module are respectively arranged at the two sides of the board body, so that the wiring structure is optimized, the signal interference is reduced, and the accuracy and the stability of data transmission are improved.

Description

Technical Field

[0001] This utility model relates to the field of power adapter circuit technology, and in particular to a small protection circuit board for a power supply board. Background Technology

[0002] As a crucial component of electronic devices, the circuit design of the power adapter is of paramount importance. This circuit mainly consists of several parts, including an input filter circuit, a rectifier circuit, a switching circuit, an output filter circuit, and a feedback control circuit. The input filter circuit filters out high-frequency noise and interference from the power grid, ensuring the input stability of the power adapter. The rectifier circuit converts AC power to DC power, providing a stable DC power supply for subsequent circuits. The circuit design of a power adapter must comprehensively consider multiple aspects such as efficiency, stability, and safety to meet the needs of different devices and scenarios.

[0003] In existing power adapter circuits, certain protection mechanisms are required to ensure electrical safety during use. However, existing protection circuits have shortcomings, especially in their inability to fully monitor the charging process. Therefore, a new design for the protection circuits of power adapters is needed. Utility Model Content

[0004] To address the aforementioned issues, this invention optimizes the wiring structure by placing the first port module and the second port module on opposite sides of the board, reducing signal interference and improving the accuracy and stability of data transmission. This design not only facilitates connection to external devices but also enhances the maintainability of the system's power board protection circuit board.

[0005] The technical solution adopted by this utility model is: a small protection circuit board for a power supply board, including a board body. The board body is provided with a control module, a port module, a battery access detection module, a power supply module, an output voltage detection module, a battery full charge judgment module, and a charging circuit module. The port module includes a first port module and a second port module, which are respectively disposed on opposite sides of the board body. The first port module is used to connect the power supply module and the control module. The second port module is connected to the control module through the battery access detection module. The output voltage detection module, the battery full charge judgment module, and the charging circuit module are all connected to the control module.

[0006] A further improvement to the above solution is that the control module is a control chip, which is used to electrically control the battery access detection module, the power supply module, the output voltage detection module, the battery full charge judgment module, and the charging circuit module.

[0007] A further improvement to the above solution is that the battery access detection module is used to monitor key parameters of the battery in real time, including the battery's voltage, current, temperature, and internal resistance.

[0008] A further improvement to the above solution is that the power supply module is used to supply power to the control module, the first port module is used to connect to the power supply, and the first port module is provided with at least two power supply terminals.

[0009] A further improvement to the above scheme is that the output voltage detection module is used to detect the output voltage value.

[0010] A further improvement to the above scheme is that the battery full charge determination module is used to monitor the charging status of the battery.

[0011] A further improvement to the above scheme is that the charging circuit module is used to convert the AC power in the power grid into DC power adapted to battery charging.

[0012] A further improvement to the above scheme is that the second port module is provided with multiple power terminals.

[0013] The beneficial effects of this utility model are:

[0014] Compared to existing power adapter circuit boards, this invention integrates a control module, enabling unified coordination and control of all functional modules to ensure stable operation of the entire power system. The control module, as the core, can flexibly adjust its operating state according to different working conditions, improving the system's adaptability and reliability. Secondly, the partitioned design of the port modules (the first and second port modules are respectively located on opposite sides of the board) optimizes the wiring structure, reduces signal interference, and improves the accuracy and stability of data transmission. This design not only facilitates connection to external devices but also enhances system maintainability. The introduction of a battery connection detection module enables real-time monitoring of battery status, effectively preventing system anomalies caused by incorrect battery connection or insufficient power. This function is crucial for ensuring the continuous power supply capability of the power system. The output voltage detection module ensures the stability and accuracy of the power output. By monitoring the output voltage value in real time, it can promptly detect and correct voltage deviations, protecting the load equipment from damage. The collaborative work of the battery full charge judgment module and the charging circuit module enables precise control of the battery charging process. This not only improves charging efficiency but also prevents overcharging and extends battery life. This invention provides strong technical support for power management of various electronic devices through its high degree of integration, stability and reliability, and is an indispensable component for ensuring stable system operation. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the protection circuit board of the power supply board of this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the protection circuit board of the power supply board from another perspective;

[0017] Figure 3 This is a circuit diagram of the control module of this utility model;

[0018] Figure 4 This is a circuit diagram of the port module of this utility model;

[0019] Figure 5 This is a circuit diagram of the battery connection detection module of this utility model;

[0020] Figure 6 This is a circuit diagram of the power supply module of this utility model;

[0021] Figure 7 This is a circuit diagram of the output voltage detection module of this utility model;

[0022] Figure 8 This is a circuit diagram of the battery connection detection module of this utility model;

[0023] Figure 9 This is a circuit diagram of the charging circuit module of this utility model.

[0024] Explanation of reference numerals in the attached drawings: Board 10, Control Module 1, Port Module 2, First Port Module 21, Power Supply Terminal 211, Second Port Module 22, Power Connection Terminal 221, Battery Connection Detection Module 3, Power Supply Module 4, Output Voltage Detection Module 5, Battery Fully Charge Judgment Module 6, Charging Circuit Module 7. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-9 As shown, in one embodiment of this utility model, a protection circuit board for a power supply board is provided, including a board body 10. The board body 10 is equipped with a control module 1, a port module 2, a battery connection detection module 3, a power supply module 4, an output voltage detection module 5, a battery full charge judgment module 6, and a charging circuit module 7. The port module 2 includes a first port module 21 and a second port module 22, which are respectively disposed on opposite sides of the board body 10. The first port module 21 connects the power supply module 4 to the control module 1, and the second port module 22 connects to the control module 1 via the battery connection detection module 3. The output voltage detection module 5, the battery full charge judgment module 6, and the charging circuit module 7 are all connected to the control module 1. This embodiment, by integrating the control module 1, achieves unified coordination and control of various functional modules, ensuring the stable operation of the entire power supply system. The control module 1, as the core, can flexibly adjust its working state according to different operating conditions, improving the adaptability and reliability of the system. Secondly, the partitioned design of port module 2 (with the first port module 21 and the second port module 22 respectively located on both sides of board 10) optimizes the wiring structure, reduces signal interference, and improves the accuracy and stability of data transmission. This design not only facilitates connection to external devices but also enhances system maintainability. The introduction of battery access detection module 3 enables real-time monitoring of battery status, effectively preventing system anomalies caused by incorrect battery access or insufficient power. This function is crucial for ensuring the continuous power supply capability of the power system. Output voltage detection module 5 ensures the stability and accuracy of power output. By monitoring the output voltage value in real time, it can promptly detect and correct voltage deviations, protecting the load equipment from damage. The collaborative work of battery full charge judgment module 6 and charging circuit module 7 enables precise control of the battery charging process. This not only improves charging efficiency but also prevents battery overcharging and extends battery life. This embodiment, through its high integration, stability, and reliability, provides strong technical support for power management of various electronic devices and is an indispensable component for ensuring stable system operation.

[0028] Control module 1 is a control chip used for electrical control of the battery access detection module 3, power supply module 4, output voltage detection module 5, battery full charge judgment module 6, and charging circuit module 7. In this embodiment, the control chip effectively coordinates the battery access detection module 3, power supply module 4, output voltage detection module 5, battery full charge judgment module 6, and charging circuit module 7 through electrical control, significantly improving the overall efficiency and safety of the power management system. Specifically, the control chip can monitor the battery access status in real time to ensure correct battery connection; at the same time, it precisely regulates the output of power supply module 4 to meet the voltage and current requirements of different devices. The presence of output voltage detection module 5 enables the system to provide immediate voltage feedback, preventing overvoltage or undervoltage. Battery full charge judgment module 6 uses intelligent algorithms to accurately determine the battery charging status, preventing overcharging damage. Furthermore, the control chip's precise management of charging circuit module 7 further ensures the stability and safety of the charging process.

[0029] The battery access detection module 3 monitors key battery parameters in real time, including voltage, current, temperature, and internal resistance. The power supply module 4 supplies power to the control module 1, and the output voltage detection module 5 detects the output voltage value. The battery full charge judgment module 6 monitors the battery's charging status. The charging circuit module 7 converts AC power from the grid into DC power suitable for battery charging. In this embodiment, the battery access detection module 3 can monitor key battery parameters in real time and accurately, including voltage, current, temperature, and internal resistance, effectively preventing abnormal conditions such as overcharging, over-discharging, and overheating, ensuring safe and stable battery operation. The power supply module 4 provides stable and reliable power support to each functional module through precise control, ensuring smooth operation of the entire system. The output voltage detection module 5 detects the output voltage value in real time, ensuring stable power output and avoiding damage to the equipment caused by voltage fluctuations. The battery full charge judgment module 6 can accurately monitor the battery's charging status, promptly cut off the charging circuit, prevent overcharging, and extend battery life. In addition, the charging circuit module 7 efficiently converts AC power from the grid into DC power suitable for battery charging, which not only improves charging efficiency but also reduces energy loss. In summary, this solution, when applied to the protection circuit board of the power supply board, achieves comprehensive protection for the battery and power system, improves the stability and safety of the system, and has significant technical advantages and application value.

[0030] The first port module 21 is used for power supply connection and is provided with at least two power supply terminals 211. Specifically, the second port module 22 is provided with multiple power connection terminals 221. In this embodiment, the at least two power supply terminals 211 configured in the first port module 21 not only ensure the stability and redundancy of the power supply connection but also improve the reliability of the entire circuit system. During power supply, even if one power supply terminal 211 fails, the other can still continue to work, effectively avoiding the risk of system power outage due to a single point of failure. At the same time, the multiple power connection terminals 221 provided on the second port module 22 further enhance the flexibility and scalability of the circuit. These power connection terminals 221 can be connected to different types of power supplies or signals according to actual needs, providing the power board with diverse input and output options. In summary, the application of this solution on the protection circuit board of the power board not only improves the stability and reliability of the power supply but also enhances the flexibility and scalability of the circuit, providing a strong guarantee for the safe and stable operation of the entire power system.

[0031] Battery Connection Detection: The charging circuit only starts charging when a battery is detected (high level). Reverse Connection: No signal (low level) during battery connection detection; the charging circuit will not open. Charging Indicator: A signal (high level) indicates charging; no signal indicates fully charged or standby (low level). Full Battery Determination: The charging indicator light transitions from low to high and back to low, indicating a fully charged battery. Output Voltage Detection: By detecting a voltage drop below a set value, it's possible to determine if there is a short circuit, overcurrent, etc. in the output.

[0032] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A small protection circuit board for a power supply board, characterized in that: The device includes a board body, on which are mounted a control module, a port module, a battery access detection module, a power supply module, an output voltage detection module, a battery full charge determination module, and a charging circuit module. The port module includes a first port module and a second port module, which are respectively disposed on opposite sides of the board body. The first port module is used to connect the power supply module and the control module, and the second port module is connected to the control module through the battery access detection module. The output voltage detection module, the battery full charge determination module, and the charging circuit module are all connected to the control module.

2. The protection circuit board of the power supply board according to claim 1, characterized in that: The control module is a control chip, which is used to electrically control the battery access detection module, power supply module, output voltage detection module, battery full charge judgment module, and charging circuit module.

3. The protection circuit board of the power supply board according to claim 1, characterized in that: The battery access detection module is used to monitor key parameters of the battery in real time, including battery voltage, current, temperature and internal resistance.

4. The protection circuit board of the power supply board according to claim 1, characterized in that: The power supply module is used to control the power supply of the module, and the first port module is used to connect to the power supply. The first port module is provided with at least two power supply terminals.

5. The protection circuit board of the power supply board according to claim 1, characterized in that: The output voltage detection module is used to detect the output voltage value.

6. The protection circuit board of the power supply board according to claim 1, characterized in that: The battery full charge determination module is used to monitor the battery's charging status.

7. The protection circuit board of the power supply board according to claim 1, characterized in that: The charging circuit module is used to convert AC power from the power grid into DC power suitable for battery charging.

8. The protection circuit board of the power supply board according to claim 1, characterized in that: The second port module is provided with multiple power terminals.

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