Hey All!
I've been making some progress on the big rig as of late. As usual, my plans had to change a bit. I'm housing all of the "modern" iron in a rolling chassis that I fabricated. I made it nice and low, so it'll slide under a desk and quietly do it's job. The true buzzardly stuff will be in a separate rack, away from all of this new-fangled technology.
I'm still in the "Finding just the right spot for everything stage", but I'll get there.
When I button this thing up it'll be covered in Lexan panels to keep things visible and out of reach.
Photo Gallery for the project:
http://gallery.me.com/tbkmedia#100099Anyway, as can be seen in the photos, I'm building this thing to (hopefully) work without breaking a sweat in amateur service. Massive rectifier stacks for the bridge, 10H 1A choke, and 120uF (!!!) 4KV cap. The power supply will be shared by the Mod section and PA section. If I calculated things right, the voltage should be around 1.7KV, give or take, with less than 1% ripple under load, and regulation looks excellent on the Duncan simulator.
I initially questioned the cap, as it's labeled "Energy Storage", but after searching the forum, that doesn't seem to be an issue.
But, quite obviously, I'm going to be needing a serious step-start or soft-start scheme to go with this thing. I imagine a simple resistor/relay scheme would work ok, but I see that Mouser has some beefy 40A Triacs... Hmm. A nice voltage ramp-up on the primary would be pretty slick... Has anyone tried a system like this, or am I over-engineering things again here...
Any comments or suggestions would be greatly appreciated! Thanks!
TK