DocumentCode
1385609
Title
Wein-bridge oscillators with opamp independent oscillation frequency
Author
Carlosena, A. ; Martinez, P. ; Porta, S.
Author_Institution
Dept. of Electr. & Comput. Eng., Zaragoza Univ., Spain
Volume
40
Issue
3
fYear
1991
fDate
6/1/1991 12:00:00 AM
Firstpage
644
Lastpage
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
Keywords
bridge circuits; frequency stability; operational amplifiers; oscillators; Wein-bridge oscillators; automatic gain-control; gain-bandwidth products; opamp independent oscillation frequency; single-pole rolloff model; sinusoidal oscillators; stability; Capacitors; Chromium; Circuits; Filtering theory; Frequency; Impedance; Oscillators; Passive networks; Predictive models; Transfer functions;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.87036
Filename
87036
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