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That particlar double break is just to isolate the power supply after charging. The output circuit is also isolated by a double-break which is enabled by the CPU only after certain conditions are met. Finally, the output is also enabled or disabled by a manual keylock switch. The rep rate is...

Hacksaw, The load is used to ignite pyrotechnic devices, so it must be isolated for safety reasons. The power supply itself is not isolated.

Thanks for all of your responses. Cornell Dublier and United Chemi-Con both make an electrolytic cap designed for repetetive high energy pulses. However, the leakage is spec'd at 1XC in uA after 5 minutes. So I am looking at 300uA leakage, which means the dV/dt will be about 1V/sec after the 5...

Hacksaw, I'm sorry if my response seemed harsh. I'm sure you were just trying to be helpful.

Thanks for your input Skogsgurra. Using a 10M-ohm divider means the capacitor voltage would drop 5% after about 2 minutes. This would probably be acceptable but I will need input from our intended user first. I just wanted to know if anyone knew of another way to do it. Just for clarification...

Hacksaw, that was a useless post. I might be able to forgive you since you're "mechanical". The bottom line is, I was asking for a suggestion to monitor capacitor charge, not a critique of my whole design. If I wanted that, I would have to describe the entire project in detail, which...

If by accuracy you mean the threshold of the indicator, I would specify it at about 95% (190V). The signal will simply be a logic "high" or "low" to the CPU. The purpose of the design is to provide a pulse of specified current and pulse width, in this case 40A for up to...

I am designing a current pulse generator, and need to come up with a way to indicate to the CPU when a 280uF capacitor bank is charged to 200V. The design involves switching the capacitor bank between the 200V supply (charging) and the output circuit (isolated). I am not aware of too many...