Re: [TCML] IGBT High Current Low Voltage TC Primaries

[Frosty <frosty90@xxxxxxxxx>]

I think that actually the closest thing to this concept is the SSTC or
DRSSTC, the SSTC uses switching devices such as IGBTs at the apropriate
resonant frequency to drive the secondary via a non-resonant primary, or the
DRSSTC which is a similar concept but with a resonant primary. Steve Ward
has a good website with many configurations and details on SSTCs and DRSSTCs

  > Jim Harvey (UDN) wrote:
> > > Please forgive this newbee!
> > >
> > > Is there any literature describing work done to use IGBTs to directly
> drive
> > > the primary of a TC?
> > >
> > > I am looking to use IGBTs powered directly from 110 VAC or 220 VAC to
> switch
> > > high currents into the primary.
> > >
> > > In summary:
> > > 1. Power source is the AC line 110 or 220 VAC rectified.
> > > 2. The IGBT switches this source directly into the TC primary.
> > > 3. The IGBT is switched at the resonant frequency of the TC secondary.
> > > 4. The primary is resonated with a capacitor to achieve resonance.
> > >
> > > It seems to me that, if we can get enough current into the primary,
> this low
> > > voltage approach would work.
> > >
> > > Again, I am new to the list and don't have the knowledge of the history
> of
> > > TCs over the last 20 years or so.
> > >
> > > Thoughts?
> > > 73 & Stay Vertical,
> > >
> > > Jim Harvey (W7YV) - The Great Curmudgeon
> > > P.O. Box 18009
> > > Salt Lake City, UT 84118
> > >  <http://www.harveyclan.net/> http://www.harveyclan.net
> > >  <http://www.harveyclan.net/w7yv.htm>
> http://www.harveyclan.net/w7yv.htm
> > >
> > > FIST # 13337
> > > SKCC # 3194
> > >
> > > "Calling CQ was like a box of chocolates. You never know what you're
> gonna
> > > get."
> > >
> > >
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