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Re: Tesla Software
Tesla List wrote:
>
> >From 100624.504-at-CompuServe.COMWed Jul 3 22:18:22 1996
> Date: 03 Jul 96 08:43:04 EDT
> From: Alan Sharp <100624.504-at-CompuServe.COM>
> To: Tesla List <tesla-at-poodle.pupman-dot-com>
> Subject: Re: Tesla Software
>
> Graham,
>
> I guess I'ld like to know for a give secondary and toriod
> size what the resonance frequency is going to be and
> some idea of the Q and input impedence if driven
> as a magnifier. Oh yes and I'ld like to know exactly
> how insane I am to be playing with these things :)
>
> Doesn't have to be too accurate +/- 0.000001% will do ;)
>
> Good luck,
>
> Alan Sharp (UK)
Alan,
I do not know of any software which will correctly predict such values.
The euations for toroidial capacitance are terrible. Even an error of 5%
in the equations can shift the resonant frequency of a combo about
100Khz! (In small coils with largish toroids.) The free swinging
isolated capacitance, even if precisely measured, will change when on a
coil (proximity effect). The only way I know to get the values you seek
is to build and measure the finished product!
Richard Hull, TCBOR