Quote:
Originally Posted by dmjlambert
Well I don't know about PWM for AC, I think it is for DC motors only, but I may be mistaken. It will be interesting to find out how it goes.
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Look into a triac for AC PWM...
https://www.google.com/search?ei=6ko....0.okNKgaixWr8
As for BJTs vs FETs they use a bit different terminology but the basic difference is the former operates on base current, and the latter on gate voltage. FET tech typically uses less current and higher voltage.