Re: PIRANHA-III Trigger Circuit (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Moderated and approved by: Gerry Reynolds <greynolds@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 22 Dec 2006 19:21:50 -0700
From: Terrell Fritz <terrellfone@xxxxxxxxxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: PIRANHA-III Trigger Circuit (fwd)

Of course...

http://hot-streamer.com/temp/DF-DRSSTC-MasterPartsList.pdf

http://hot-streamer.com/temp/DF-DRSSTC-Notes.pdf

Note that there is an "adjustment" in the firing circuit's tuning inductor 
so it's Fo matches that of the coil's primary circuit.

http://hot-streamer.com/temp/DF-DRSSTC-2005-10-17-001.jpg

http://hot-streamer.com/temp/DF-DRSSTC-SCHEMATIC.pdf

http://hot-streamer.com/temp/DF-DRSSTC-ScottH-Board%20assy11-2-05.JPG

Seems "so old" now :o))))  The technology there is over 12 
months...  Ewwwwww!!!

Cheers,

         Terry



At 03:36 PM 12/22/2006, you wrote:


>Terry  or Steve  ---- do you have a Digi-Key parts list for this circuit?
>
>
>Dr. Resonance
>
>
> >>
> >>Recently you mentioned you were going to try triggering your SIDAC-IGBT
> >>stack with an ignition coil.  I came across an interesting and simple
> >>variable rate trigger circuit for a strobe light which also uses a SIDAC!
> >>It might work well for your trigger - see
> >>http://geocities.com/lgtngstk/Strobe/Strobe.html.  Just substitute the
> >>ignition coil for the trigger transformer.  Of course, eliminate the flash
> >>tube & R1, and you will probably want to increase C3 to pump more energy
> >>into the ignition coil and correspondingly decrease R3 and R2 to get the
> >>break rate range you want.
> >
> > This is similar to the DF-DRSSTC pulse firing circuit I used on the
> > DF-DRSSTC (upper right):
> >
> > http://hot-streamer.com/temp/DF-DRSSTC-SCHEMATIC.pdf
> >
> > Your circuit is pretty nice and easy and should work fine ;-))
> >
> >
> >>Also, an ignition coil without a common
> >>primary/secondary connection would be safer, or run the trigger from an
> >>isolation transformer.
> >
> > I was going to use two ignition coils for total isolation since everything
> > in the primary circuit is very hot!
> >
> > Cheers,
> >
> >         Terry
> >
> >
> >
> >>Merry Christmas,
> >>--Steve Young
> >
> >
> >
> >