Re: Series Connection of IGBT / MOSFET Switches - SSSG

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Black Moon by way of Terry Fritz <twftesla-at-qwest-dot-net>" <black_moons-at-hotmail-dot-com>

10us?? gezus! thats forever man, 1us is 1mhz, 10us is 100khz max
that means for a 100khz coil it will ALLWAYS be in midswitch. and thats 
assumeing by 10us you mean to switch on then off
if its just on/off time, that means its only 50khz.

>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Series Connection of IGBT / MOSFET Switches - SSSG
>Date: Mon, 04 Nov 2002 08:16:01 -0700
>
>Original poster: "Jan Wagner by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><jwagner-at-cc.hut.fi>
>
>Hi,
>
> > As a sidebar from the Chicago Power Electronics Conference,
> > I found this URL for an App. Note from IXYS concerning
> > applying IGBT's or MOSFET's in series for capacitive discharge
> > (OLTC) applications.
> >
> >   http://www.ixys-dot-com/t080698a.pdf
>
>Just curious, why isn't anyone considering GTO thyristors for this?
>ok they do eat a lot of gate current, and switching time is around 10us
>or longer, but, for "spark gap" replacement it should work very well. I
>mean, something like 4kV 3kA-continuous is possible. GTOs being older tech
>than igbts they should be comparatively cheap to get...
>
>cheers,
>  - Jan
>
>--
>*************************************************
>  high voltage at http://www.hut.fi/~jwagner/tesla
>  Jan OH2GHR