Saturday, May 26, 2012
Update 11/7/2013: oneTesla has gained a life of its own and transcended to a new plane of existence! You can get a kit for one here.
oneTesla is a small DRSSTC with the entire driver (tank cap, voltage doubler, bridge, and logic) all on one PCB. Tech specs:
200Apk, 270V bus, 40 uS ON@200BPS, 60VA out of the wall. Sparks are ~6" long
The interrupter lives in a separate box, and is coupled into the driver with coaxial cable. This works OK, though there are still some noise issues that cause the pulsewidth to fluctuate.
Schematic:
Get the Eagle board files[here] if you want to make one...its not quite perfectly reliable yet (in particular, it probably needs a optoisolated interrupter), but it does 6 or 7 inches at 100W fine. If you're incredibly lazy, the DigiKey order for the most of the components (not the 40N60's), is [here]
Crappy phone video:
Random photos:
Board ready to etch
Primary current
Assembled board
Blindingly bright blue lights