Re: PSpice modeling of spark gaps

• To: tesla-at-pupman-dot-com
• Subject: Re: PSpice modeling of spark gaps
• From: Greg Leyh <lod-at-pacbell-dot-net> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Sun, 08 Nov 1998 12:48:09 -0700
• Approved: terryf-at-verinet-dot-com

> Original Poster: "Barton B. Anderson" <mopar-at-uswest-dot-net>
> 
> Gary,
> Terry has come up with a break which models the gap well. This was done by
> using an SBREAK which is pulsed (VPULSE). The parameters are editable. The
> SBREAK open and close voltage is set via the SBREAK, but the repetition
rate,
> delay, etc..  is done via VPULSE variables. I would recommend downloading a
> schematic to take a look at the setup. You can download my schematic at
> http://www.geocities-dot-com/CapeCanaveral/Hangar/3108/simulation.htm . I have
> Terry's pulsed sbreak in my schematic. Terry may also have uploaded his
> pulsed sbreak on his page, but I'm not sure. The last time I was at Terry's
> page, he did have my schematic uploaded which does show his pulsed sbreak
> spark gap.


The main gotcha with using SBREAK is that it has 
an intrinsic R(on) of 1ohm and a R(off) of 1Mohm.
Some serious hacking is required to change this.

-- 


-GL
www.lod-dot-org

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