transfer function of network containing dependent source

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transfer function

Can someone help me with this question:
a) Try to decide the transfer function H(jω) for this:
**broken link removed**
vin(t)=Acos(ωt)
I have count that C and R2 to R2/(jωR2C+1)
From here I dont know what to do

b) What is H(jω) if A->∞

thanks in advance
 

transfer function

If it is part of your Homework then you better do it yourself.
Hint:Find the current (better work in s-domain).
 

The output is set by Vout = -A v1. => v1 = Vout / -A.

Then all the nodes can be written in terms of Vin and Vout. Then it is easy. You only need to solve the node equation for v1.

Something to notice, when A => infinity, then v1 = 0, an assumption we make for an ideal opamp. mmmm....
 

    T

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thanks i get it now
 

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