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RE: DRSSTC Primary Circuit Feedback Control
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- Subject: RE: DRSSTC Primary Circuit Feedback Control
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- Date: Tue, 07 Dec 2004 12:19:02 -0700
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Original poster: "McCauley, Daniel H" <daniel.h.mccauley@xxxxxxxx>
I have to add that with my current set-up, i can run the coil for long
periods of times and the IGBTs / heatsink are
still cool to the touch.
Dan
>The models (not real confident in the numbers..) say the IGBTs will do
>about 40 watts of heat as is. But with "perfect" zero cross
>switching,
>that goes down to 1.2 watts!! This is no different than any other
>switching resonant thing and they are all using "little" FETS and
>IGBTs... We just have to refine ours... I also seem to be
>able to keep
>the peak primary currents at just 80 amps which is trivial for the
>IGBTs. Almost could use FETs again...
>
>Cheers,
>
> Terry
>
>
>