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RE: Smokin' gate drive chips on DRSSTC-2 board

Original poster: "David Trimmell" <humanb@xxxxxxxxxxxxxxxxxxx>

I can confirm this. While testing my board I got from Dan, I had no problems
running without a load. Everything should run stone cold, I have only
powered two IGBT's, but still do not even need heat sinks for voltage
regulators even on extended runs. This is a very nice design, even though I
am bypassing all the extra 'safety' circuitry Dan added for now. Think I
will wait till I am pushing out 5 foot sparks for that!

Personally I am hooked on the solid state stuff now; to think Just over a
year ago I was greatly intimidated by the complexity. But as all things go,
once you become familiar with it all you realize things are not as difficult
as it may appear.

But for me more work in this area must wait. I am going back to DC next
week, then the holidays, then down to Panama in February, looks like March
will be the soonest... By then who knows what the field will look like, been
some real serious progress this year.

BTW: Steve nice mini coil you have made!

Regards,

David Trimmell

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Sunday, December 05, 2004 3:51 PM
To: tesla@xxxxxxxxxx
Subject: Re: Smokin' gate drive chips on DRSSTC-2 board

Original poster: "Daniel McCauley" <dhmccauley@xxxxxxxxxxxxxxxxxxxxxxxxxx>

I don't see how running these gate drivers without a load could cause any
problems whatsoever.

Dan


 > >I am building (3) of Dan McCauley's DRSSTC driver boards, and the first
one
 > >I powered up (with no gate drive transformer connected) instantly let
out
a
 > >small wisp of smoke from one of the driver chips  ......
 >
 > I see.  I bet they need a load to run right.