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Recent content by RichardS

  1. R

    [SOLVED] Deriving transfer function for circuit

    My calculation from post #12 is way off. I realized too late the mistake I did. After fixing the mistake I again get same thing from post #7 so correct final thing is Uout/Uin=(Z3*ZL) / [ZL*(Z1+Z3)+Z3*(Z1+Z2)+Z1*Z2] Thanks for help everyone.
  2. R

    [SOLVED] Deriving transfer function for circuit

    I ended up with something a bit different i1*(Z1+Z3) - i2*z3 - uin = 0 i2*(Z2+ZL+Z3) - i1*Z3 = 0 i1 = -(uin*(z3 - (z1 + z3)*(z2 + z3 + zL)))/((z1 + z3)^2*(z2 + z3 + zL)) i1/uin=-(z3 - (z1 + z3)*(z2 + z3 + zL))/((z1 + z3)^2*(z2 + z3 + zL)) i2 = (uin*z3*(- z3^2 + z3 + z2 + zL))/(z2 + z3 +...
  3. R

    [SOLVED] Deriving transfer function for circuit

    Thanks for help I got (L3*RL*s)/((C2*RL*s + 1)*((R3 + L2*s)*(R1 + R2 + R3 + L1*s + L2*s + 1/(C1*s)) + L3*s*(R3 + L2*s) + (RL*(R1 + R2 + L1*s + L3*s + 1/(C1*s)))/(C2*RL*s + 1)))
  4. R

    [SOLVED] Deriving transfer function for circuit

    Thanks for help, I figured that mesh analysis mistake. I can't figure out what that calculation is but without expanding Zs it would be like uout/uin is (i2*Zload)/(i1*(Z1+Z3)-i2*Z3) Where Z1=(1/Cin*s) + R1 + R2 + L1*s Z2 = R3+L2*s Z3 = L3*s Zload = (Rload) / (1 + (Rload*C2*s))
  5. R

    [SOLVED] Deriving transfer function for circuit

    Fix Zload = (Rload) / (1 + (Rload*C2*s)) and wrong source symbol - fixed the picture I'm a bit stuck at the point I came so far. There are now 2 branches, first one with i1 and second one with i2 and when writing the equation for first one the i2*z3 has to be subtracted from first one? uin =...
  6. R

    [SOLVED] Deriving transfer function for circuit

    Hi, I need help with calculating my circuit, I've done something but not sure if that is correct. Any help or direction where to look at is welcome. In the end I need transfer function of the circuit. The first circuit is the one I start with, the second picture is "simplified" circuit with...
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