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Modified lamp dimmer circuit

2016-08-04 02:54  
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Description.

This is a modification of the circuit Simple Lamp Dimmer/Fan Regulator  previously  posted here. The working of the circuit is same as that of the previous, but in addition a snubber circuit consisting of resistor R4 and capacitor C3  is included to improve the performance of the triac T1. A fuse is also included for better safety. I think this is the better circuit to try .

Circuit diagram with Parts list .

lamp-dimmer-circuit.JPG

Notes.

No matter how  what ever may be the load lamp,fan , heater or anything it should be rated less than 200 Watts. No matter how  what ever may be the load lamp,fan , heater or anything it should be rated less than 200 Watts. Assemble the circuit on a good quality PCB or common board . Almost all parts of the circuit are live with potential shock hazard.Be careful.