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Re: Alternative supply for tesla coils
> Original Poster: "Jeff Corr" <corr-at-enid-dot-com>
>
> >> This is a straight forward design to get 12Kv from 2 2Kv mots. It
> doesn't
> >> use any doubleing. Just a positive & nagative suply on each transformer.
> >> Which are then hooked in series to get 12Kv. I drew a picture to better
> >> explain what I'm talking about.
> >Choad,
> > I will have to look at your circuit more closely later, but it does
> >resemble a voltage doubling circuit to me.
>
>
> It isn't a voltage doubler at all if I understand it right. As Shaun
> explains it, it uses two seperate rectifiers, creating a negative
> supply and a positive one. Both of those supplies in series create
> the total difference. This allowed us to get 7kv from one microwave
> transformer. While it oscillated in a Tesla Coil tank circuit as it was
> supposed too, the arcs of the spark gap pulled too much current
> killing the diodes after a few seconds. Several diodes in parrallel
> should fix this.
You will need to incorporate a resistor in series with each diode to
ensure one doesn't hog all the curent. Doesn't happen with Schottkys
but they aren't available in HVs.
Malcolm