Discussion in 'Homework Help' started by jobu180, Nov 1, 2008.
I'm trying simplify the following circuit:
( R1 in series with C1) || C2
I'm looking for Z .
Assign the series RC leg the reference Z1 and assign the C2 leg the reference Z2.
Then write the expression for Z1||Z2.
With the expression Z1||Z2 figured out, you can then plug in the impedances for each of the elements and solve.
Z1 = R1+C1
Z2 = C2
Z = Z1*Z2/(Z1+Z2)
Z = (R1*C2+C1*C2)/(R1+C1+C2)
That's right, so ...
Z1 = R1 +1/sC1
Z2 = 1/sC2
Z = (R1/sC2 + 1/s^2C1C2) / (R1 +1/sC1+1/sC2)
Hope that's right.
You have the the equation correct. You probably need to simplify the expression to be totally complete.