Re: [TCML] SSTC Coupling

[Steve Ward <steve.ward@xxxxxxxxx>]

Dex, do you have a better 'Rspark'???

Terry Fritz tried to characterize the corona impedance on a CW - SSTC at one
point, but i dont recall if he determined it to be different than the 220k
that he characterized for disruptive sparks.  Recently ive worked on
non-linear spark models that give much better results in my DRSSTC
simulations... i may open a discussion on this once i get a better feel for
what im doing and get more measurements on a real system for direct
comparison.  But really, there seems to be good evidence that would suggest
the impedance of a spark will change with the voltage, generally the
impedance will go down as the voltage applied to it goes up.

I think Greg is probably more interested in gaining insight to the behavior
of these systems, whether or not the figures are absolutely correct.  You
can still learn from simulation and variation of parameters even if your
parameters are "wrong".

Steve

On Tue, Oct 27, 2009 at 2:08 PM, Dex Dexter <dexterlabs@xxxxxxxxxxx> wrote:

> Why do you think  Rspark = 220 kOhm is a realistic figure for SSTC ?
>
> Dex
>
>
> --- gbmorris@xxxxxxxxx wrote:
>
> From: Greg Morris <gbmorris@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] SSTC Coupling
> Date: Mon, 26 Oct 2009 19:43:43 -0300
>
> So in other words my C_TERM should be shorted, and C_TERM_TO_GND should
> have
> the value of the current C_TERM?
>
> Thanks,
> Greg
>
> 2009/10/26 Antonio Carlos M. de Queiroz <acmdq@xxxxxxxxxx>
>
> > Greg Morris wrote:
> >
> >> My circuit
> >> model can be found here,
> >> http://picasaweb.google.com/GBMorris/Tesla#5396152968071832514 , and
> has
> >> been largely borrowed from Figure 8-1 of Tilbury's book on Tesla Coil
> >> Design.
> >>
> >>
> > The terminal capacitance should be in parallel with the secondary
> > capacitance, not in series, with the load connected to both.
> >
> > Antonio Carlos M. de Queiroz
> >
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> >
>
>
>
> --
> Greg Weyrich Morris
> VP External - Engineering Undergraduate Society
> B.Sc. Electrical Engineering (Final Year)
> University of New Brunswick
> G.B.Morris@xxxxxx
> www.unb.ca/robotics
>
>
>
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