Equivalent feedback representations of twin-T oscillators

Equivalent feedback representations of twin-T oscillators

The conventional twin-T oscillator using a high-gain feedback amplifier configuration is equivalent to an oscillator using a unity-gain configuration. The apparent differences are caused by the choice of the reference node and the feedback analysis method. A bipolar transistor oscillator is used to...

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Veröffentlicht in:IEEE journal of solid-state circuits 1972-12, Vol.7 (6), p.509-511
1. Verfasser: Rosario, B.A.
Format: Artikel
Sprache:eng
Schlagworte:
Capacitors
Cause effect analysis
Circuits
Feedback
Operational amplifiers
Oscillators
Phase measurement
Roentgenium
Temperature dependence
Voltage
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Zusammenfassung:The conventional twin-T oscillator using a high-gain feedback amplifier configuration is equivalent to an oscillator using a unity-gain configuration. The apparent differences are caused by the choice of the reference node and the feedback analysis method. A bipolar transistor oscillator is used to illustrate first-order and second-order effects of the (approximate) feedback analysis.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.1972.1050328