I have been trying to figure out how the following circuit works and what it might be good for without any luck so far.
What might the transfer function be?
Is there a way that analysis can be applied generally to many such loops inside each other ?
(for analysis purpose exact op amp type does not matter, and may be considered ideal)
Upon recommendation, i tried the delta-star transformation, and came up with conclusion that n loops can be simplified to the circuit below:
This looks like inverting op amp but there is one resistor left from the last transformation connected to inverting input. Is this correct, or am I missing something ?