help in a Circuit used to fire thyristors - Electronic Circuits Projects Diagrams Free

mosh11 · 6th November 2009, 08:12 AM

Hello members

i want to design a circuit to supply the firing pulse of the thyristors

i want also its theory of operation.

any help will be appreciated

thank you

Ahmed

schmitt trigger · 6th November 2009, 08:47 PM

The thyristor, will it be a SCR or TRIAC?
Are you going to control a DC or AC load?
In the latter case, will it be phase control, zero crossing or static switching?
How large is your thyristor? Volt/Current ratings.
Sensitive gate SCR?, Three or Four quadrant Triac?
Isolated or non-isolated drive?
Cost?

General Electric's SCR manual has something like 40 pages dedicated to thyristor triggering.

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6th November 2009, 08:12 AM	#1
mosh11	help in a Circuit used to fire thyristors Hello members i want to design a circuit to supply the firing pulse of the thyristors i want also its theory of operation. any help will be appreciated thank you Ahmed

6th November 2009, 08:47 PM	#2
schmitt trigger	The thyristor, will it be a SCR or TRIAC? Are you going to control a DC or AC load? In the latter case, will it be phase control, zero crossing or static switching? How large is your thyristor? Volt/Current ratings. Sensitive gate SCR?, Three or Four quadrant Triac? Isolated or non-isolated drive? Cost? General Electric's SCR manual has something like 40 pages dedicated to thyristor triggering. __________________ If authority was mass, stupidity would be gravity.