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Cascading RC circuit w/ DC voltage. How will capacitors charging time vary?

  1. Nov 30, 2006 #1
    In the following schematic, will the RC time constant be the same for all capacitors using the equivalent resistance of all the resistors?

    When I plug it into pspice or electronics work bench, it has that the First capacitors voltage as a function of time will always be twice as much as the 10th capacitor stage as a function of time.

    I just dont know...

    Either way, im only off by 5% in my theorietical and experimental calculations...just confused...
     

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  2. jcsd
  3. Nov 30, 2006 #2

    OlderDan

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    Does that symbol to the right mean the stages go on forever?
     
  4. Nov 30, 2006 #3
    No, its a spark gap.

    I figured it out though. A huge linear non homongenous first order differntial equation should take care of it.
     
  5. Nov 30, 2006 #4

    OlderDan

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    The "10" made me wonder. I think you are right about the DE. I started doing it just for 2 capacitors. Have fun :smile:
     
  6. Nov 30, 2006 #5
    This is going to be a set of coupled differential equations isnt it?
     
  7. Nov 30, 2006 #6

    OlderDan

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    I should think so. The charge rate of each capacitor depends on its own charge and the charges on the adjacent capcitors. One would think the capacitor closest to the source of emf will charge faster than the next one, etc.
     
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