可控硅调光灯电路-TRIAC Light Dimmer

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可控硅调光灯电路-trIAC Light Dimmer
This little circuit can be used to dim lights up to about 350 watts. It uses a simple, standard trIAC circuit that, in my expirience, generates very little heat. Please note that this circuit cannot be used with fluorescent lights.
Schematic



Parts




Part

Total Qty.

Description

Substitutions


R1

1

50K Pot




R2

1

15K 1/2W Resistor




C1, C2

2

0.068 250V Capacitor




L1

1

Lamp To Be Controlled (up to 350 watts)




L2

1

Neon Lamp




tr1

1

40502 trIAC




MISC

1

Case, Knob, Heatsink For tr1, Wire, Socket For L1
Notes
1. This circuit is for 117VAC only. 220 or 240 V will burn up the circuit. L1 can be a maximum of 350 watts.
2. The circuit must be installed and used in a case.