Summing up impedance with Current Source?

Discussion in 'Homework Help' started by dacrazyazn, Apr 19, 2009.

  1. dacrazyazn

    Thread Starter Member

    Mar 30, 2009
    22
    0
    I got one short question. When adding up the impedances that are in parallel, and there is a current dependent current source as of the elements, what would that current source be considered as? would i just leave it out?

    The picture attached is the problem tat i am looking at. Thanks in advance!
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Unfortunately - no.

    Only independent current sources may be treated according the rule - current source as open circuit, when attempting to evaluate impedances / resistances.

    You must analyse the circuit using Kirchoff's Laws or note some other shortcut.

    For instance - If you wanted to find Zin you would write Zin=Vin/Iin.

    Write down the equation for Iin first and you'll perhaps notice a simple relationship falls out for the current source part of the equation.
     
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