Quark ESC Power Board Comparisons/Mods

[BrianG]

Yeah, that's 12,000v. Usually, since the voltage is stepped up, the current is stepped down so there isn't much current available. But, it only takes ~15mA to kill (that's 0.015A)...

[lutach]

Good thing for fuses and circuit breakers LOL.

[sikeston34m]

I decided to take a few pictures of this HV power board before I completely tear down the original configuration and perhaps learn a few things from analyzing what they've done.

I notice that they have all the gate leads tied together through a series on resistors inline. I'm not sure what effect this will have, but I think it governs the amperage the gate leads are allowed to draw.

The Blue Component marked "Wima" is like a small Capacitor, it will charge up under an Ohm meter. This is connected between the source and the drain. A Cushion? I would think they need to charge up first, before full output power is seen.



Wait second! Are those more Low ESR Capacitors I see? (*Joke*)


I'm thinking about using this board for testing. Strip the resistors, and use the existing pathways for the Mosfets. The Caps are already in place too.

This thing is huge though. It's 8" x 3" x 2". If I can make it work and put it through some testing, I'll reconfigure the entire thing to make it compact.

Absolute ratings for this board is 375 amps. Perhaps it will do 300 amps continous with the proper heat sinking. (which I have also)

Come to think of it, How am I going to test this thing? I know a Data Logger is in order, but to seriously load it? Hmmmmm...........aah well, one thing at a time.

I have a AXI 4130/20 that I could bolt a 20" inch prop onto. It's rated for 8 Lipo cells. Maybe open up the doors and blow the house out. LOL