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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Bibliographic Details
Published inIEEE journal of solid-state circuits Vol. 7; no. 6; pp. 509 - 511
Main Author Rosario, B.A.
Format Journal Article
LanguageEnglish
Published IEEE 01.12.1972
Subjects
Capacitors
Cause effect analysis
Circuits
Feedback
Operational amplifiers
Oscillators
Phase measurement
Roentgenium
Temperature dependence
Voltage
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.1972.1050328