The circuit boards in the battery have many roles and functions. First, it is responsible for providing energy to each unit circuit in the entire circuit board, which is achieved through the power supply circuit. Secondly, it also has an input interface circuit, which is responsible for converting physical quantities such as sound, light, temperature, height, thickness, and liquid volume in nature into electrical signals, and conditioning them into information that can be recognized by the microprocessor. The microprocessor control circuit accepts the relevant information sent by the input interface circuit and processes it, and then further sends the processing results to the output interface circuit. The signal driving capability output by the output interface circuit from the microprocessor is relatively weak and cannot directly drive high-power devices such as high-power tubes, relay coils, solenoid valves, and speakers. In this case, the signal output by the microprocessor must be processed through the output interface circuit. Only after the current or voltage is amplified or processed in other aspects can the high-power devices such as high-power tubes, relay coils, solenoid valves, and speakers be driven. In addition, the circuit board in the battery also has a protection circuit, which monitors the operating status of the circuit in the circuit board. The protection circuit immediately sends information to the microprocessor about abnormal conditions such as overvoltage, overcurrent, overheating, and lack of phase. , and take protective measures. At the same time, the circuit board in the battery also has a communication circuit, whose main function is signal transmission, by communicating information between the circuit board or host computer (touch screen or PLC) and the circuit board. Finally, the circuit board in the battery also has a display circuit, which mainly displays the voltage, current, motor speed, temperature and other working conditions of the circuit board when it is running through the display, LCD screen or LED.
The above information is for reference only. If you need more information, please consult professional books or consult professionals.