regulating capacitor discharge current

Discussion in 'The Projects Forum' started by braxat2000, Feb 14, 2011.

  1. braxat2000

    Thread Starter New Member

    Feb 14, 2011
    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,

    Sorry for my bad English
  2. Wendy


    Mar 24, 2008
    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.