Title :
An improved Wien bridge oscillator
Author :
Carlosena, A. ; Martinez, P. ; Porta, S.
Author_Institution :
Dept. de Ingegneria Electr. e Inf., Zaragoza Univ., Spain
fDate :
4/1/1990 12:00:00 AM
Abstract :
A type of RC-active Wien-bridge oscillator is proposed whose oscillation frequency is independent of the time constants of the op amps used in the design and is determined only by passive components. Other important effects such as the influence of parasitic poles and nonlinearities in the stability of the system are also analyzed. Experimental results are given, showing close agreement with theoretical predictions
Keywords :
active networks; bridge circuits; frequency stability; oscillators; RC active type; Wien bridge oscillator; op amps; parasitic poles; passive components; stability nonlinearities; Bridge circuits; Circuit stability; Feedback control; Frequency; Logic; Motion control; Nonlinear dynamical systems; Operational amplifiers; Oscillators; Sliding mode control;
Journal_Title :
Circuits and Systems, IEEE Transactions on
