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Series and Parallel RLC parameters

  1. May 21, 2017 #1
    1. The problem statement, all variables and given/known data
    I want to find different parameters of series and parallel RLC
    for series RLC we have this transfer function
    and we know that transfer function of second order system is something like this:we can assume H0=1
    but gif.gif is wrong(when you use only denominator you find out that gif.gif ).However the same approach works fine for parallel RLC.

    what is my mistake?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. May 21, 2017 #2


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    Staff: Mentor

    For a series RLC, from the denominator I find ## Q=\omega_o\frac L R##

    What is your transfer function for the series circuit?
  4. May 21, 2017 #3
    Sorry , I mean that this approach works for Series RLC but not works for parallel RLC
    Here is my calculation
    we know that



    So in deliminator gif-gif.gif , but with numerator it is different

    The same approach
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