The dynamics of a stabilised Wien bridge oscillator

被引：1
|
作者：
Lerner, L. [1 ]
机构：
[1] Univ Wisconsin, Milwaukee, WI 53211 USA
来源：
EUROPEAN JOURNAL OF PHYSICS | 2016年 / 37卷 / 06期
关键词：
Wien bridge oscillator; nonlinear system; frequency generation; oscillator stability;
D O I：
10.1088/0143-0807/37/6/065807
中图分类号：
G40 [教育学];
学科分类号：
040101 ; 120403 ;
摘要：
We present for the first time analytic solutions for the nonlinear dynamics of a Wien bridge oscillator stabilised by three common methods: an incandescent lamp, signal diodes, and the field effect transistor. The results can be used to optimise oscillator design, and agree well with measurements. The effect of operational amplifier marginal nonlinearity on oscillator performance at high frequencies is clarified. The oscillator circuits and their analysis can be used to demonstrate nonlinear dynamics in the undergraduate laboratory.
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页数：22
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