Dimmer Circuit Diagram. We will use it in the dimmer circuit. The variable resistor vr1 plays as a main controller in the light dimmer circuit.
Lamp dimmer circuit diagram for more lighting dimmer circuits check the related links bellow. The black line wire connects to the common terminal of the 3 way dimmer. Dimmer switch wiring diagram.
When ac mains is provided to the above circuit as per the setting of the pot c2 charges fully after a specific delay supplying the necessary firing voltage to the diac.
A device like this should only be used with an incandescent light fixture. After a certain time dependant on the potentiometer the charge contained in c4 is large enough for diac d to start conducting so that a firing pulse is applied to the gate of the triac. We will use it in the dimmer circuit. In the circuit variable resistor vr1 and d1 diac are used to control the brightness of the lower level.
