Hi Bart,
True, I know I brought up the topic some years ago about using power
SCR/IGBT in place of spark gaps, though the prices were too high, I
think Terry invested in SISG but was many before also but on lower
power levels.
One of the reason I am working on my high Q design is that it only
needs to operate up to 100V, and that will equal a 2KW power supply.
Uses a huge SCR, but there world is flooded with low voltage types and
can pick them up on ebay for next to nothing.
DRSSTC seem great, was tempted to build one, but decided "its always
been done" kind of thing now, but for sure a great solid state design.
I am going for a single SCR high Q design, a LOT of work, though in
itself is nothing new, but a real pain to design.. Hopefully once the
"beta version" is proven some more people will jump in with thier own
variations...
Cheers,
Chris
----- Original Message ----- From: "bartb" <bartb@xxxxxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Thursday, April 17, 2008 5:07 AM
Subject: Re: [TCML] IGBT 1200V, 54A
BTW, Chris, these mods aren't new. We've known about them for many
years. The problem I have is that I have no idea if they are worth
while or not. I've never heard of a coiler trying one. The TCML has
discussed these several years ago, but rhe prices were enormous (just
like now), so not much more was discussed. We are still at that same
cross road I guess.
What did come into play between your post and the older ones which
were identical, is the DRSSTC's and Terry's SISG. These were low cost
compared to the high cost items you described (which others have also
described in the past).
It's not new, it's simply out of the price of even the wealthy.
However, if I ever win the Power Ball (and I won't because I rarely
play), I will give it a go.
Take care,
Bart
bartb wrote:
Very interesting Chris! This module in TC service is for companies
like KVA Effects or those who's customers can afford the extreme
components or be built into the cost of the systems, could fine
these modules worthwhile. However, R&D test must be made first. It's
possible the heat is high and losses are large. Wish I had one to
experiment with!
Take care,
Bart
Chris Swinson wrote:
Bart,
Already tried ;-) The cheapest one was $2000 or so, I still have
the quote somewhere.. not cheap, but interesting ;-)
Chris
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