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Voltage transfer functuon of network

  1. Jun 11, 2013 #1
    I dont have access to computer right now so heres the link to my working

    http://tinypic.com/r/2nhowoo/5
    .
    According to the answer I shouldnt have (s/RC) term on the numerator, otherwise all good.

    Can anyone please point out where i have gone wrong?
     
  2. jcsd
  3. Jun 11, 2013 #2

    phinds

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    You are going to post your image sideways to make it hard to read? I'm not going to bother.
     
  4. Jun 11, 2013 #3

    gneill

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    Staff: Mentor

    [STRIKE]Your math looks okay to me. The s/RC term should be there.[/STRIKE]

    EDIT: I take that back! When you converted the first resistor and capacitor to impedance Z, you didn't also adjust V1 accordingly. Essentially you are taking the Thevenin equivalent of v1 and the first R/C section. You need to find both the Thevenin impedance Z and the Thevenin voltage that replaces V1.
     
    Last edited: Jun 11, 2013
  5. Jun 12, 2013 #4

    rude man

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    A strange approach, trying to replace the first R-C section with a series-Z.

    Why not just write nodal equations?
     
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