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triac flicker iss ue


New Member
hello, I am trying to control brightness of the lamp using moc3023 ,triac BTA16 but my bulb is flicker after some time approx 1 min.why this happens?


Well-Known Member
Most Helpful Member
Many modern light bulbs are not supposed to use a triac dimmer. A triac dimmer was used years ago with incandescent light bulbs.


New Member
If the gate voltage of the triac is less as required as per the spec this can happen. Provide a 4.7 mfd cap from the gate of triac to gnd the voltage rating of the cap should be 3 times more than the voltage present on the gate of the triac.
Sambath kumar

dr pepper

Well-Known Member
Most Helpful Member
Possibly not enough trigger current, or unsymetrical triggering.
As mentioned schem please.

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