Original poster: "K. C. Herrick" <kchdlh@xxxxxxx>
Hi List & Steve-
I send to Terry a photo of where I am so far with the new sstc:
<http://hot-streamer.com/temp/kch_pri4.jpg>http://hot-streamer.com/temp/kch_pri4.jpg.
Two + and two - mains-capacitors are mounted on paper-phenolic blocks &
interconnected with each other using copper sheet-stock & with the IGBTs
with copper braid. All are mounted on the large heat-sink. The red
object at the center is the Rogowski coil, thru which runs both H-bridge
outputs in opposite directions. The little assembly to the left is a
0.004 ohm resistance in series with the negative mains-supply, for
over-current sensing. (Perhaps it won't have too much inductance!)
The assembly is positioned about where it will be in relation to the 6T,
paralleled 1/4"-tubing primary assembly which, as I have previously noted,
is to fit inside an existing 12"-dia. 100 KHz secondary. I'm working on
the 7"-square circuit board that will fasten horizontally onto the
capacitor-blocks at the front of the assembly. All the electronics except
for the mains-rectifiers, the duty-cycle oscillator and a variac will be
on that. As I also previously mentioned, the bottom lip of the secondary
sits on the little phenolic blocks that are attached just above the
primary capacitors.
So...my motivation still holds up. (And we shall see about that, shan't
we, when it comes to trying to get it to work.) If it ever does work and
if I don't expire first, my next project would be to get it to run off the
500VDC converter in my Prius. Wouldn't that be a kick!
Ken Herrick