Circuit Diagram Of Fan Dimmer. Circuit diagram parts list r1 r5 1m r2 r3 r4 r6 10k vr1 c2 see text opto 4n35 or any standard c1 022uf400v c3 100uf25v d1 d5 1n4007 z1 12v ic1 4060 triac bt136 waveform simulation the delay waveform image below shows how the phase for the fan may be delayed at every zero crossing for the various settings of vr1. This is the simplest light dimmer circuit diagram or fan regulator circuit diagram.
In the circuit variable resistor vr1 and d1 diac are used to control the brightness of the lower level. The variable resistor vr1 plays as a main controller in the light dimmer circuit. The diac diode ac bi directional switch is a kind of diode.
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This drives mosfet q3 via transistors q1 q2 to control the speed of a motor or to dim an incandescent lamp. This drives mosfet q3 via transistors q1 q2 to control the speed of a motor or to dim an incandescent lamp. Zero cross detector circuit 2. Potentiometer part to control the dimming 4.