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Re: Doorknob capacitors for primary?
Original poster: dhmccauley-at-spacecatlighting-dot-com
It just the physical properties and make-up of the capacitor. The
capacitors have a relatively high effective series resistance (ESR).
Power = Current^2 * Resistance
So if you look at all the current a tesla coil tank capacitor sees:
Charge Current(t) * ESR = Power Dissipation1
Discharge Current(t) * ESR = Power Dissipation2
Total Heat Dissipation = Power Dissipation1 + Power Dissipation2
You'll see that a capacitor with a relatively high ESR will develop quite a
substantial amount of heat when looked over time.
> Regarding "Door Knob Capacitors", just what, or how, do they work? I
> have broken open a few of my larger ones that have failed, and find they
> are nothing more than a ceramic material... Can anyone explain the
> physics of operation?
>
> Thanks,
>
> David Trimmell
>
>
> Snip>>>>>>>>>>>>>>>
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