THE WIEN BRIDGE OSCILLATOR

THE WIEN BRIDGE OSCILLATOR

One circuit for a bandpass filter is shown in Fig.1.

For a=0,the input impedance for the filter is

Zi = R + 1/jωC = [1+ jωRC]/ jωC

and for a=0, the feedback impedance is

Zo = [R/jωC]/[R+1/jωC] = R/[1+ jωRC]

so that the ratio Zo/Zi = jωRC/[1+ jωRC]2

For a ................
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