Re: srsg behaviour - microsim

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

Original poster: "Finn Hammer by way of Terry Fritz <twftesla-at-qwest-dot-net>" <f-h-at-c.dk>

I never made it to the Orcad version, but I`ve read that it is better.
Anyway, the Microsim works for me.

You can download a copy here.

http://www.hot-streamer-dot-com/TeslaCoils/Programs/Programs.htm

I had a problem with going back to Microsim from orcad, though. I would
seem like Orcad leaves something behind that makes the Microsim
Schematics editor appear different, can`t quite remember, something with
the selected parts not highlighting anymore, or some such annoying
tidbit.

Another thing that you need is a time proven model that will appear
rock-solid and not crash too often due to some nodes not converging.

A good one is here:

http://home5.inet.tele.dk/f-hammer/museum.sch

It is good, because most of the coil and psu details are set into
parameters, so that it is easy to run parametric runs, where the program
runs trough several values of a certain partsès values. For what if
analysis.

Feel free to grab it and fit it to your needs.
Terry made most of it.

Cheers, Finn Hammer


Tesla list skriver:
 >
 > Original poster: "Jeremy Scott by way of Terry Fritz 
<twftesla-at-qwest-dot-net>" <supertux1-at-yahoo-dot-com>
 >
 > Where does one get MicroSim?
 >
 > I've got the OrCad PSPICE 9.1 Student Version
 > (which i think is the same thing) However every
 > circuit I seem to try and setup fails to simulate
 > (even simple battery + resistor ones) I get some
 > error about floating nodes etc...no matter what.
 >
 > So I think what I've got is not what you've all
 > got. Or else I'm doing something wrong.
 >
 > --- Tesla list <tesla-at-pupman-dot-com> wrote:
 >  > Original poster: "Finn Hammer by way of Terry Fritz
 >  > <twftesla-at-qwest-dot-net>" <f-h-at-c.dk>
 >  >
 >  > Claude!
 >  >
 >  > I`m not sure you are asking for help, but since 4
 >  > pack MOT`S and 300 BPS
 >  > is my pot, allow me to expand on, what the missing
 >  > ingredience is.
 >  >
 >  > You need to "spice" with a bit of Microsim.
 >  >
 >  > Or any other simulation package, preferably backed
 >  > up with a high
 >  > voltage monitoring sysem, consistig of an interface
 >  > to a scope.
 >  >
 >  > It has been said that there is no power advantage in
 >  > equal bangsize at
 >  > 300 and more BPS, but I disagree. What you are seing
 >  > is exactly the
 >  > problems that come about, by having no controll over
 >  > the bangsize. When
 >  > the safety gap fires it is simply because there is
 >  > no SRSG electrode
 >  > presentation available to discharge the cap. So the
 >  > safety gap does it,
 >  > without being able to properly handle the current.
 >  >
 >  > The amount of power you can put trough with a 300
 >  > BPS system is greater
 >  > than with a static at the same ballasting, and such
 >  > a system really
 >  > sings! A crisp, high pitched tone that will leave
 >  > you addicted for good!
 >  >
 >  > Your cap is small for the power you are running,
 >  > above 100 nF would be a
 >  > better ballpark value, for 300 BPS, but you need to
 >  > place the electrodes
 >  > pretty exactly to make it sing, and the position of
 >  > the gaps that
 >  > results in equal BPS is different at various power
 >  > levels.
 >  >
 >  > However, I have had good results simulating this
 >  > kind of system, and
 >  > been able to validate the model in practical work.
 >  >
 >  > Have a look at:
 >  >
 > http://home5.inet.tele.dk/f-hammer/tesla/museum/setup/setup.htm
 >  >
 >  > Having learned to use Microsim myself, and also
 >  > having built the
 >  > Fiberprobe system to safely monitor the primary
 >  > circuit, I am of the
 >  > opinion that you cannot set up "300 BPS and up"
 >  > systems without it.
 >  >
 >  > I am very gratefull for the tuition that Terry gave
 >  > me back in the past,
 >  > on how to simulate, and if anybody is interested in
 >  > learning how to,
 >  > now, I will be happy to pay back, and pass some of
 >  > that knowledge on.
 >  >
 >  > Cheers, Finn Hammer
 >  >
 > msnip