When finding Go, ix =0 implies that the opamp is taken out of the equations. What's left is a seemlingly simple circuit with vhat, R1, R2 and the feedback loop from vchat through C1 and R3. I'm trying to solve this circuit with mesh currents and the equations are getting very messy.
And I missing something that simplifies this circuit? Have I setup the circuit correctly? Thank you.
-Drew
Assuming I've done this correctly myself, it sounds like you have the right setup. If ix=0, then the op amp output is essentially HiZ, i.e. not there. There is no external load, so there can be no current flowing through feedback elements C1 and R3. If that's the case, isn't this just a simple voltage divider from vhat to the negative summing junction?
ReplyDeleteYou're right. I over-thought the problem. Thanks.
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