Re: Modeling a flyback transformer Tesla coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Brian,

If it is MicroSim (I think Orcad owns it now), this "might" be of some help:

http://hot-streamer-dot-com/TeslaCoils/MyCoils/BigCoil/BigCoilSCH.gif
http://hot-streamer-dot-com/TeslaCoils/MyCoils/SmallCoil/SmallCoilSCH.gif
http://hot-streamer-dot-com/TeslaCoils/Programs/MicroSim/MicroSim.html

This paper may be of use too.

http://hot-streamer-dot-com/TeslaCoils/MyPapers/modact/modact.html

Cheers,

	Terry


At 07:01 PM 12/9/2001 -0800, you wrote:
>I am attempting to use ORCAD to model a transistor driving a flyback
>transformer for a small solid state tesla coil.  What would be a reasonable
>approximation of the inductance I am driving (10 turns #14 wire added to the
>core)?  I am attempting to model a
>snubber network to minimize damage to my driver transistor.  I am assuming
>the idea is to absorb enough of the energy released by the collapse of the
>field to protect the driver but that any energy I absorb is taken from my
>spark output so the trick is to absorb enough to bring the voltage spike
>down below what the transistor can withstand and no more.  Have I got the
>basic idea correct?
>
> ORCAD seems like an amazing thing.  I get many of the same frustrations I
>get with real circuits (when they don't do what I expect!) without any of
>the smoke.  I can't get over wishing I had had something like this when I
>was a teenager trying to learn all this stuff in the first place.
>
>Brian Howden
>
>
>
>