二阶压控电压源LPF的进一步探讨

Further discussing low-pass filter of two orders voltage-controlled voltage source

以物理概念为基础，利用数学手段证明了二阶压控电压源ＬＰＦ转化为正弦波振荡器的条件，同时给出了振荡频率的计算式。

On the basis of physical concept, applying mathematical method, the condition that the problem can be transformed from the voltage-controlled voltage source LPF of two orders to the sinusoidal oscillator is proved and the calculation formula of oscillatory frequency is presented.