- #1

Chandasouk

- 165

- 0

I cannot get the Z2Z3 to appear in the bottom.

I'm saying Zout = Z2 || Z3 so that gives Z2Z3/Z2+Z3 and Zg = Z1

Then H(s) = Zout/Zg = Z2Z3/Z1Z2+Z1Z3

What am I doing wrong?

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- Thread starter Chandasouk
- Start date

- #1

Chandasouk

- 165

- 0

I cannot get the Z2Z3 to appear in the bottom.

I'm saying Zout = Z2 || Z3 so that gives Z2Z3/Z2+Z3 and Zg = Z1

Then H(s) = Zout/Zg = Z2Z3/Z1Z2+Z1Z3

What am I doing wrong?

- #2

Ecthelion

- 28

- 0

So:

The voltage seen by Vo:

Zo = (Z3)(Z2)/(Z3+Z2)

The voltage seen by Vg:

Zi = Zo + Z1

So when you divide Zo/Zi and simplify you get the correct answer. Hope that helps! Let me know if you need further explanation.

- #3

Chandasouk

- 165

- 0

V

Where V is voltage and R is resistance. In our case, we would just replace the R's with Z's for impedances but I'm still not sure how you got Zi = Zo + Z1 from that

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