[TCML] MMC design for 12kV @ 120mA xfmr
resonance at wildblue.net
Thu Dec 4 15:56:59 MST 2008
Each series string needs to be a minimum of 16 pcs for a 32 kV DC rating.
Erms x 2.5 is an absolute minimum value.
Each string will be 9.375 nF each, so dividing .04 / .009375 uF gives 4.2
strings, so go to 4 strings at .009375 uF per string = .0375 uF (37.5 nF at
32 kV DC) will work well with a 12/120 mA setup.
I recommend an 8" dia sec for very high inductance ratio to give you the
best output. Wind 40" long with #22 AWG double-build insulated magnet wire.
64 total 0.15 uF caps required for this coil.
Top toroid 24 x 6 inch size. Dryer duct toroid will work fine.
I have around 300 MMC caps (0.15 uF and 0.1 uF) in stock at present.
On Thu, Dec 4, 2008 at 10:40 AM, John <guipenguin at gmail.com> wrote:
> Planing out my MMC before I order some CD942c 0.15µF caps. I'm planing
> on building my next coil with a 12kV @ 120mA xfmr. LTR cap value =
> 0.0398µF so I'm setting my cap value at 0.04µF.
> series string A: 2kV @ 0.15µF / 10 = 20kV @ 0.025µF
> series string B: 2kV @ 0.15uF / 6 = 12kV @ 0.015uF
> Both strings in parallel giving 0.025µF + 0.015uF = 0.04µF
> Does that look good?
> <John Paine>
> Tesla mailing list
> Tesla at www.pupman.com
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