摘要
本文证明了二阶压控电压源LPF中压控电压源的放大倍数A(up)＜3，给出了通带截止频率f_p人与特征频率f_0的一般关系式，从而解决了教材未明确指出的问题。
The voltage amplification ratio which is smaller than 3 is proved about voltage control source Low Pass Filter 2 and general relationship between cut-off frequency and characteristic freqency of freqency band is presented and there by the problem which is not clear in textbook is resolved.
出处
《惠州学院学报》
1997年第4期74-76,共3页
Journal of Huizhou University
关键词
正反馈
负反馈
线性区
特征频率
通带截止频率
positive feedback, negative feedband, linear region, characteristic frequency, cutoff frequency
