Wednesday, September 5, 2012
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List Component of Triac Light Dimmer circuit
Triac Light Dimmer Circuit
This is a simple 220V light dimmer circuit based triac can be used to adjust the brightness of mains lights about 350 watts. It also can be used to adjust the speed of AC motors. It uses a triac, diac and has a radio-frequency interference (RFI) noise suppression circuit built into it as well. Please note that this circuit cannot be used with fluorescent lights.
|Triac Light Dimmer circuit|
R1 : 50K Pot R2 : 15K 1/2W Resistor C1, C2 : 0.068 250V Capacitor L1 : Lamp To Be Controlled (up to 350 watts) L2 : Neon Lamp TR1 : 40502 TRIAC
- This circuit is for 117VAC only. 220 or 240 V will burn up the circuit. L1 can be a maximum of 350 watts.
- The circuit must be installed and used in a case.
Heat sink is necessary for 40502 TRIAC