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Motor electronic governor controller 3

2016-09-01 08:48  
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Motor electronic governor controller 3
The circuit work theory This motor electronic governor controller circuit is composed of power supply circuit, counter and optical control pulse width modulation circuit, the circuit is shown in the figure 8-60. The power supply circuit is made of switch S1, depressurization capacitor C1, resistor R1, rectifier diodes VD1, VD2, steady voltage diode VS and filter capacitors C2, C3. The optical control pulse width modulation circuit consists of resistors R4-R9, diodes VD3-VD8, LED VL, TRIAC VT, bidirectional trigger diode VD, light dependent resistor RG and resistor R10, capacitors C5.