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Re: Terry's DRSSTC - The Bridge...



Original poster: <steve.conner@xxxxxxxxxxx>

> Important thought!!!  If we run our DRSSTC at 120
Hz,  We can take
> advantage of the AC line high peak currents and
vastly reduce the size of
> the filter electrolytic caps...  Why do all
that "filtering" when we can
> just run resonate with the AC line too...

Well as I'm sure Dan McCauley will point out... the
caps are there to provide energy storage just like in
a photo flash gun. So they have to be able to give a
number of joules equal to your desired bang energy,
without the voltage dropping too much.

The peak current drawn by the inverter is so high that
I think you would be on a hiding to nothing trying to
draw it straight from the 120v line. Even in a small
DRSSTC you have peak powers of around 50kW. (the big
ones are 300+ kW) How much do you think the voltage
would sag if you plugged a 50kW load into an ordinary
120 volt outlet?

I like your "No GDT" approach and I hope it all works
well...

Steve
C.