regulating capacitor discharge current

Thread Starter

braxat2000

Joined Feb 14, 2011
2
Hi,
I'm an engineer who has recently moved to electronics field from another field.
I was presented with a problem I would very much appreciate a lead on how to solve.
I have a device which is working by a capacitor discharging via an arc for a limited time.
The capacitor is initially charged to 80V, discharging via the arc which has R=0.08Ohm, which means the exponential discharge starts at 1000V.

The device cannot handle this discharge. I am required to regulate the current (by adding some components) so that the discharge will remain more or less constant at 200A.

I have no clue on how to start, any help will be greatly appreciated,
Thanks.

P.S
Sorry for my bad English
 

Wendy

Joined Mar 24, 2008
23,421
You can put a constant current source on the capacitor (200A is a bit higher than I'm used to) and it will work until the capacitor drops below a voltage threash hold.
 
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