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Re: cap in parallel to neon xfrmr
Subject:
Re: cap in parallel to neon xfrmr
Date:
Wed, 2 Apr 1997 11:27:35 +1200
From:
"Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Organization:
Wellington Polytechnic, NZ
To:
tesla-at-pupman-dot-com
Almost....
> From:
> xtal-at-airmail-dot-net (David Christal)
> To:
> Tesla List <tesla-at-pupman-dot-com>
> References:
> 1
>
>
> On Wed, 26 Mar 1997 08:50:20 -0600, you wrote:
>
>
> >If you put the HV cap in parallel to the neon xfrmr won't you short
> >out or at least overload the xfrmr ?
> >----------------------------
> >Kenneth Aaron
> >E-mail : kennetha-at-geocities-dot-com
> >http://www.geocities-dot-com/SunsetStrip/8736/
> >----------------------------
> >
> >
> The way I see it:
> Once the capacitor is fully charged, it no longer conducts;
Charging current falls to zero near as....
> the current then flows through the spark gap;
If the gap firing voltage has been reached.....
> the current stored in the cap is then drained through the (conducting)
> spark gap;
and dumped into the primary coil setting up an oscillation. At this
time, the transformer is also shorted by the gap which is where
current limiting inductance comes in handy.....
> the drained cap now conducts again, thus shutting off the arc in
> the spark gap.
It was conducting while oscillating with the primary coil. The gap
goes out when gap current reaches a low enough level - i.e. energy
transferred to the secondary and lost in other ways.....
> and so on, and so on, and so on.
>
> Sure it's hard on the cap and the xformer, but that's what we're here
> for!
>
> The primary coil inductance absorbs some of the shock.
gets the shock which is passed on to the secondary.
Malcolm
> Some people add a resistor to lighten the load.
>
> Take this with a grain of salt, I'm new to all this.
>
> David Christal 3341 Cloverdale Lane, Dallas, TX 75234
> 214 349-6972 (214 FIX MY PC) (Pool Cues and Personal Computers)
>
>