Re: 1-turn coil inductance nomogram...etc.

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

Original poster: "jimmy hynes by way of Terry Fritz <twftesla-at-qwest-dot-net>" <chunkyboy86-at-yahoo-dot-com>


yup, thats what i said. 

 Tesla list wrote: 
>
> Original poster: "K. C. Herrick by way of Terry Fritz " 
>
> Jimmy (& all)-
>
> What I have forgotten about transformer design would likely fill the old
> textbooks I still have on my shelf. What you seem to say is: reduce the
> magnetizing (-at- 90 degree) current by utilizing more turns--no problem;
> what's important is the current (-at- 0 deg.) that is going to be drawn by
> virtue of the coupling to the secondary. And to maximize the latter
> current, maximize the coupling--in a system with an untuned primary, that
> is.
>
> Do I have it right & do others agree?
>
> Ken Herrick
>
> On Mon, 26 Aug 2002 18:21:38 -0600 "Tesla list" 
> writes:
> > Original poster: "jimmy hynes by way of Terry Fritz 
> > " 
> > 
> > 
> > the igbts i am going to use ! for my sstc are IRG4PC40W. they are 
> > rated at 600v
> > 40 amps continuous 160 amps peak have a fall time of 74ns and a rise 
> > time of
> > 23ns. the best part is they only cost $3.80 from digikey. the 1450 
> > amps you are
> > talking about is only the magnetizing current, the current that 
> > doesnt help
> > you. current that helps you is the current that is in phase with the 
> > voltage,
> > and it builds up over time. the way to keep the magnetizing current 
> > low and the
> > in phase current high is to have a high k. it would be easier to use 
> > the
> > magnifier setup to get a high k with out insulation problems. if the
> > magnetizing inductance is high enough then the transformer acts like 
> > a gear
> > ratio and it is just like base feeding the resonator, but at a 
> > higher voltage. 
>
> > > Ken Herrick
> > 
> > 
> > 
> > JImmy
>


JImmy