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RE: DRSSTC design procedure - draft



Original poster: "Steve Conner" <steve.conner-at-optosci-dot-com> 

 >I recommend running some simulations to see if I didn't make a
 >mistake...

Here's my first simulation, it is a transient run using the exact parameters
that Antonio posted.

http://scopeboy-dot-com/tesla/drsstc/antonio_drsstc.gif

It seems to work exactly as Antonio said, delivering 23 Joules. And the
switching is very good, there are no hard switching events.

Now I need to investigate its sensitivity to streamer loading, which is a
job for another day.

It performs very poorly when I run it with the streamer load model I use,
which is 25*L pF of cap in series with 103000/L ohms of resistance (L is
streamer length in metres) The primary current goes over 2000A. But this is
totally different to what Antonio developed it with - 638k in parallel with
10pF, for what (according to the delivered energy trace on my sim) would be
a 2 metre streamer. So that would be 5L pF in parallel with 1276/L kOhms.

Antonio, where did you get the 638k//10pF figure from? Do you think it is
realistic? Do you think _my_ model is realistic? Does anyone else have a
view?

Thanks,

Steve C.