Power supply circuit: The power supply circuit is a part of the circuit that provides energy to each unit circuit in the entire circuit board, which works in a high voltage and high current environment, and is a part of the circuit that is prone to failure
The function of the power supply circuit is to convert 220VAC or 380VAC AC into a variety of different levels of DC power required by the circuit board with a fixed output voltage of +5V, 12V, 15V, 18V, 24V.
For example: when we are monitoring the temperature, if you use our ordinary human communication language to say to the microprocessor, the temperature is high, please turn it down a little, the micro is not able to understand what we say, at this time, we can first use the interface circuit to convert the temperature signal into an electrical signal, and then process the converted electrical signal. You get an electrical signal that the microprocessors can recognize. That way, once the microprocessor understands what we want it to do, it can do what we want it to do. The same is true of other signals such as illumination, pressure, wind, liquid level, position, and so on.
The function of the input interface circuit is to convert what people want to say or do to the board into a level signal that the microprocessor in the board can recognize.
The main function of the external polymerization control circuit is to accept the relevant information sent by the input interface circuit, and analyze and process the information, and make the corresponding processing results, and further send the processing results to the output interface circuit
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