Re: Terry's DRSSTC - input DC rectifier and filter stuff

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Steve Ward <steve.ward@xxxxxxxxx>

Hey Terry,

Nice looking PCB ;-).

Are you planning on mounting another lytic right on the H-bridge
itself? or are you just going to keep your output connections from
that board very short?  Im sure you realize that any inductance
between the lytics and the H-bridge means voltage spike at high
currents... better keep those inductances down!!

Good luck with this project.  I started working with even smaller
coils, and have a DRSSTC running at 550khz ;-)  It throws out some
cute 6-7" streamers at about 50W or so :-).  I will post details to
the TCML when i get the final version built.  But the fact that it
worked well at 550khz suggests that you really *can* build a DRSSTC
driver for just about any (resonably sized) secondary out there, just
have to use the right IGBTs ;-).

Looking forward to seeing your project working!

Steve


On Thu, 02 Dec 2004 21:07:33 -0700, Tesla list <tesla@xxxxxxxxxx> wrote:
> Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi,
>
> Got the filter parts in today and built it up...
>
> http://hot-streamer.com/TeslaCoils/MyCoils/DRSSTC/PC020019.JPG
>
> It can take a full IGBT nuclear "cross conduction and cool explosions
> event" (CCCEE) on the output while keeping the AC line side safe and
> happy.  Prolly holding $300 in R&D there ;-))
>
> 6 x 9 PC card that packs "70 TIMES" the energy of most TC primary
> caps!!!  It could kill an elephant dead (unlike Edison, I won't verify 
that)...
>
> I think I will stick it, the breaker, line filter, and discharge circuit,
> and a 300V meter in a nice rack case...  Another $300!!!
>
> This ain't cheap stuff!!...  But blowing $3000 of computers ain't cheap
> either...  I now have 4 computers on my desk...  Do this stuff al the time
> at work...  But "I don't care there"...  When repairs are on "my nickle", I
> do care ;-))
>
> It could also power my "waiting" OLTC that has never been "really" put to
> the test...  Big hefty AC to DC filters that pack lots of capacitance seem
> to be in great need nowdays ;-))
>
> I think big brass output bolts and wing nuts on the back of the rack
> case...  Like 3/8 to 1/2 inch...
>
> I am looking for a 0-300VDC Simpson meter in excellent to new
> condition...  Newark has them in stock for $95...  If anyone has them
> cheaper (in stock) I am interested ;-)
>
> Cheers,
>
>        Terry
>
>