对RC振荡电路的扩展认识

Extension to Know About RC Oscillation Circuit

本文对含运算放大器的RC振荡电路相关知识,从多个侧面在认识上进行了扩展。用多种方法分析了前向放大倍数在更多种范围内取值时,振荡电路的暂态行为;举例阐述了确定振荡幅值的方法;讨论了振荡波形的正弦性问题;探究了振荡频率与选频网络的关系。在论述过程中,分析、仿真、实验相结合。这种围绕一个问题不放松的问知方法,对教与学两个方面都是有益的。

From multiple aspects,this paper has extended to present the concerns about RC oscillation circuit which contains the operational amplifier.For the more possible values of forward magnification times,the dynamic behavior of oscillation circuit is analyzed through various methods.The method for determing the oscillation amplitude is introduced by taking an illustration.The sinusoidal performance of oscillation waveform is discussed and the relationship between oscillation frequency and frequency selection network is studied.In this paper,the analysis results are verified by simulation and experimental tests.The deep exploration for one question like this paper will be of benefit to both sides,teaching and learning.