Rectifying Triac Output
Rectifying Triac Output
(OP)
Hi All,
I've been looking for a circuit design that can rectify the output of a typical household dimmer switch into nice clean 12v DC. The reason I'd like to do this is that I have a light fixture with an incandescent bulb that is perfectly happy to dim with the triac, but I want to run some 12v electronics off the same wire. I took a stab at this but it seems pretty hairy, maybe it just shouldn't be done? I imagine that a dimmable LED bulb contains driver circuitry something like this? Any thoughts would be much appreciated.
I've been looking for a circuit design that can rectify the output of a typical household dimmer switch into nice clean 12v DC. The reason I'd like to do this is that I have a light fixture with an incandescent bulb that is perfectly happy to dim with the triac, but I want to run some 12v electronics off the same wire. I took a stab at this but it seems pretty hairy, maybe it just shouldn't be done? I imagine that a dimmable LED bulb contains driver circuitry something like this? Any thoughts would be much appreciated.





RE: Rectifying Triac Output
Your assumption that it shouldnt be done is absolutely right.
There are other issues also - like difficulty to smooth that extremely pulsating voltage. And also avoiding overvoltage that will kill your load when there is interference o the line.
Gunnar Englund
www.gke.org
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RE: Rectifying Triac Output
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RE: Rectifying Triac Output
If you still need a light dimmer, connect it only to the light fixture.
RE: Rectifying Triac Output