Re: Resonance - what is it? and OLTC stuff

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

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi Jonathon,

On 18 Aug 2002, at 23:09, Tesla list wrote:

> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Kidd6488-at-aol-dot-com>
> 
> Hi everyone,
> 
> I've been familiar with Tesla Coils for about 2 years now, but I realized 
> that I really don't know what resonance, and resonant rise actually are. I 
> kinda understand how the voltage rises and such, but not fully. Someone care 
> to enlighten me?

The trick is basically to transfer a lump of energy from a large 
capacitance to a smaller one as losslessly as possible. In the ideal 
case, the voltage gain is Vout = Vin*SQRT(Cp/Cs) where Cs is the 
effective capacitance of the secondary at the operating frequency. 
This simple result is arrived at by considering energy conservation.

     Resonance imples dynamic enegy storage. You can add energy to a 
circuit in the same way successive pushes add energy to a swing. IN a 
Tesla Coil, the primary swings until the primary cap is empty, 
transferring some energy over successive cycles. 

Regards,
Malcolm

> Also,
> I wrote up a how it works on the OLTC page: 
> 
> 	http://hot-streamer-dot-com/oltc/work.html
> 
> If anyone finds anything, I'd be glad to hear about it.
> 
> I also noticed, that SAY one of the IGBTs was to let out its smoke, the coil 
> would continue to operate safely, correct?  Each IGBT/cap
>  pair is independent of the others, so no harm to the others. Sure, It would 
> be de-tuned, but whats that matter, when you got a crowd? Am I right?
> 
> Good luck everyone,
> 
> ---------------------------------------
> Jonathon Reinhart
> hot-streamer-dot-com/jonathon
> 
> 
> 
>