Circuit Diagram. Circuit diagram for this Arduino based 230v fan speed control circuit is given below:. Note: I have shown the complete circuit on a breadboard only for the purpose of ...

Also note that speed varies linearly and not in steps. Besides, since an optocoupler is used, the control circuit is fully isolated from power circuit, thus providing added safety. Note that for any ...

Working of AC Fan Regulator Circuit. The circuit works mainly by controlling the gate terminal of the TRIAC and the other terminal of DIAC besides changing the discharge time of the capacitor. During ...