[TCML] IGBT 1200V, 54A

[Chris Swinson]

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 at classictesla.com>
To: "Tesla Coil Mailing List" <tesla at pupman.com>
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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