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Wein-bridge oscillators with opamp independent oscillation frequency
Carlosena, A.; Martinez, P.; Porta, S.;
Instrumentation and Measurement, IEEE Transactions on
Volume 40,
Issue 3,
June 1991
Page(s):644
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646
Abstract:
A new set of 12 sinusoidal oscillators is introduced. These oscillators use two opamps and their oscillation frequency is dependent of the gain-bandwidth products of these active elements where a single-pole rolloff model is considered. This property is achieved by virtue of the configurations introduced by the authors, i.e., no adjustment is required. The proposed oscillators have been experimentally tested using a simple automatic gain-control scheme
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