The motor protector circuit diagram 1

Published:2011/6/1 7:14:00 Author:Lucas | Keyword: motor protector | From:SeekIC

The motor protection circuit is composed of the power supply circuit, current detection circuit and protection control circuit, and the circuit is shown as the chart. Power supply circuit consists of capacitors C1, C2, resistors R1 ~ R3, rectifier diodes VD1 ~ VD4, Zener diode VS1 and power indicator LED VL. Current detection circuit is composed of the current transformers TA1 ~ TA3, resistors R5 ~ R11, R14 ~ R16, diodes VD5 ~ VD7, voltage regulator diodes VS2 ~ VS4, potentiometer RP, capacitors C3 ~ C7 and so on. Protection control circuit is composed of the operational amplifier integrated circuit IC (N1 ~ N4), resistors M, R12, R13, diodes VD8 ~ VD14, transistor V, relays K, AC contactor KM, start button S1, stop button S2 and so on.



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