Re: [TCML] spark gap substitute...?

[Phillip Slawinski <pslawinski@xxxxxxxxx>]

Daniel

It might work, but there are several difficulties you would need to
overcome.  You would need antiparallel diodes since you're switching an AC
load.  Also SCRs are pretty slow in terms of switching speed.  You would be
better off using IGBTs as a replacement for the spark gap <see
http://wiki.4hv.org/index.php/SISG>

-Phillip Slawinski

On Tue, Jan 26, 2010 at 22:11, Daniel Lee <leedanieljoseph@xxxxxxxxx> wrote:

> Hello all,
>
> I'm having difficulty getting my stationary spark gap to work properly.  I
> am wondering; is it possible to use an optocoupler (triggered by a 555
> timer
> or maybe a function generator) to trigger a pair of massive SCRs to imitate
> the function of a spark gap?
> The biggest SCRs I've seen can handle 1kv (probably rated in DC, but i'm
> not
> sure), so it couldn't be too big of a coil.  I'm just wondering if this
> would work or if I'm missing something obvious.
>
> Thanks,
> daniel
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