Re: OLTC Maggy modelling

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

Original poster: "boris petkovic by way of Terry Fritz <teslalist-at-qwest-dot-net>" <petkovic7-at-yahoo-dot-com>

Steve,

 > >Bummer.. I admit I didn't give a thought to that.
 > >You think there isn't primary circuit way to
 > prevent
 > >this (except getting "IGBT bricks")?
 >
 > I got this slightly wrong. Actually the effective
 > circuit is one IGBT and
 > one diode in series, for about 1.5x the losses of a
 > single IGBT. However
 > you need a separate IGBT and diode to carry the
 > negative half-cycles. The
 > overall losses are roughly 6 times more than if you
 > had just got the two
 > IGBTs and put them in parallel.
---
Something is fishy again..Never mind.In contest of
IGBT brick ,I was thinking that circuit with IGBT
brick can provide you with much higher bang size
without going in 1000 BPS something rates for higher
power input.
---
 > Of course you could just allow it to kick back into
 > the primary, and use a
 > different kind of charging circuit that wouldn't be
 > affected.
---
Oh,certainly.
---

  It could be
 > argued that good streamer/arc loading would drain
 > most of the power from
 > the resonator before it had a chance to kick back.
 > This is the approach
 > that I would take. In theory. In practice I have
 > many other things to do,
 > like finish my PhD thesis, find a job that doesn't
 > suck, replace my cracked
 > bike frame, and hit the trails :)
 >
 > >Can you first notch quench your 2-coil OLTC
 > >configuration with K=0.2?
 >
 > Yes. The scope trace is on this page:
 >
 > http://www.scopeboy-dot-com/t3fnq.html
---
You may try then also arrangment-operation with 2nd
notch quench,or allow the energy to be sucked from
3-coil system in a natural way-without quench at
all.To experiment with optimum breakout geometry on a
topload,and with higher bang size the energy would be
lost mostly in discharge I think.
How high K could be increased in present 2-coil system
for primary circuit still be able to
quench.K=0.28,more?
regards,
boris



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