Big ripple current cap

Discussion in 'General Electronics Chat' started by ojotoxy, Jun 13, 2009.

  1. ojotoxy

    Thread Starter Member

    Jan 6, 2009
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    How can I achieve a whopping 40 A or so ripple current rated capacitor [what dielectric is best for this scenario], or parallel combination of several? This is at around 100 khz. THE other parameters are 350v, and anywhere between .2 and 1 µF. And if this turns out to be non economically feasible in a big way [$30+], I'd just love to know.
     
  2. mik3

    Senior Member

    Feb 4, 2008
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    What is the application?
     
  3. ojotoxy

    Thread Starter Member

    Jan 6, 2009
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  4. t_n_k

    AAC Fanatic!

    Mar 6, 2009
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  5. THE_RB

    AAC Fanatic!

    Feb 11, 2008
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    What are you going to use for the switches?? At 100kHz that rules out relays.

    And any semiconductor switches in your circuit won't be "galvanicly isolated" any more than a turned off transistor is "isolated".
     
  6. ojotoxy

    Thread Starter Member

    Jan 6, 2009
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    You know, like a megaohm?
     
  7. beenthere

    Retired Moderator

    Apr 20, 2004
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    If a switch fails shut, you have a lethal situation. There is no way to make the circuit intrinsically safe in the way it is laid out.
     
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