| Wien Bridge
Oscillator |
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| • | For a sinusoidal
oscillator output |
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| – | Closed loop gain ≥ 1 |
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| – | Phase shift
between input and output = 0° at |
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| frequency of
oscillation |
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| • | With these
conditions a circuit |
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| – | Oscillates with
no external input |
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| • | Positive
feedback = regenerative feedback |
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