problem in finding Transfer function

Discussion in 'The Projects Forum' started by chess2009, Jun 23, 2015.

  1. chess2009

    Thread Starter New Member

    Jun 19, 2015
    4
    0
    Hi everyone
    I found the transfer function of following circuit to have 5 poles and 2 zeros. Assume current in first loop is I1 from left, second loop is I2, third one is I3 no current is going through 4th loop.
    These are KVL equations I wrote:

    -v1+3*I1+(1/(S*C1))*I1+(1/(S*C2))*(I1-I2);

    (1/(S*C2))*(I2-I1)+S*L1*I2+S*M*I3;


    S*L2*I3+S*M*I2+(1/(S*C3))*(I3)
    v2=1/(s*C3)*I3
    I is very hard to solve this by Matlab. However Simulink gives me this transfer function :

    Thanks everyone for help.
     
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