Shahriar Posted December 10, 2005 Report Share Posted December 10, 2005 HiI have a Triac, "BT136" when I connect the T1 and T2 Pins to AC voltage, I can turn it off and On with giving a DC voltage to Gate Pin, but when I try to Turn On and Off a DC load, the triac Doesn't turn Off?it remains On, till I disconnect the power!Shold I trigger the gate with a negative pulse to turn it off? If so, How?ThanXShahriar Quote Link to comment Share on other sites More sharing options...
audioguru Posted December 10, 2005 Report Share Posted December 10, 2005 Hi Shahriar,Study how a triac works in our Articles section.A triac is used with AC current and turns-off each hlaf-cycle when the AC passes through zero volts causing its current to drop to zero. The only way to turn it off is to cut its power or short it. Its gate won't turn it off. An SCR that is used in DC circuits is the same. ;D Quote Link to comment Share on other sites More sharing options...
Shahriar Posted December 11, 2005 Author Report Share Posted December 11, 2005 Thank You very muchShahriar Quote Link to comment Share on other sites More sharing options...
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