RC文氏桥振荡器振荡条件的研究

Study on the Oscillatory Condition of RC for Wien Bridge Oscillator

理想条件下的RC文氏桥正弦波振荡电路振荡条件与电路实验结果存在较大误差,采用电路稳定性分析方法对非理想条件下电路的振荡条件进行研究,导出了电路的振荡频率和起振条件,为RC文氏桥振荡电路的设计提供参考。

The oscillatory conditions have big error between the ideal RC Wien bridge circuit and experimental result.In this paper,the circuit stability analysis method is applied to analyze the Wien bridge oscillatory condition for non-ideal circuit,and its oscillation frequency and starting conditions are derived,which provides the reference for the design of RC Wien bridge oscillator.