Motor electronic speed controller circuit diagram 3

Published:2011/5/20 20:06:00 Author:Lucas | Keyword: Motor , electronic speed controller | From:SeekIC

The motor electronic speed controller circuit consists of power supply circuit, counter and the light control pulse width modulation circuit, the circuit is shown as the chart. Power supply circuit is composed of the switch S1, step-down capacitor C1, resistor R1, rectifier diodes VD1 and VD2, Zener diode VS and filter capacitors C2, C3. IC2 is the decimal counter IC, its pin 14 (CLK-side) is the count pulse signal input and connceted the resistors R3 and button S2. When people press S2 each time, pin 14 of IC2 will input a count pulse, when people press S2 continuously, the Y1 ~ Y6 output end of IC2 will output high level in the turn. The resistors R4 ~ R9 are gradually increasing, when the different output ends output high level, the current flowing the LED is different to make the brightness of VL1 being gradually weaking from strong.



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