RC桥式振荡电路最大振荡频率的研究

Study on the Maximum Frequency of RC-bridge Oscillator

运用一阶单时间常数低通函数模拟运算放大器的开环增益,对RC桥式振荡电路进行线性分析,得出最大振荡频率为运算放大器增益带宽积的16.67%.模拟实验结果表明,振荡频率非常接近于理论计算值.

The maximum frequency of RC-bridge oscillator is 16.67% of gain bandwidth product of amplifier analyzed based on a first-order single time constant lowpass function model. Experiment shows that real frequency is close to theoretic value.