Motor electronic speed controller circuit diagram 6

Published:2011/5/18 6:20:00 Author:Lucas | Keyword: Motor , electronic speed controller | From:SeekIC

The motor speed controller circuit consists of power circuit, ultra-low frequency oscillator circuit and control implementation circuit, the circuit is shown as the chart. Power supply circuit consists of step-down capacitor C3, discharging resistor R1, rectifier diode VD3, filter capacitor C1 and Zener diode VS. Ultra-low frequency oscillator is composed of time-base integrated circuit, resistor R2 ~ R4, potentiometer RP, capacitors C2 and diodes VD1, VD2. Control implementation circuit is composed of a solid state relay KN (SSR), thyristor VT and resistors R5, R6. AC 220V voltage is bucked by C3, rectified by VD3, filtered by C1 and stabilized by vs to provide +12 V operating voltage for IC. When ultra-low-frequency oscillator gets power and works, the IC output frequency from pin 3 of IC is about 1Hz ultra-low frequency pulse signal.



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