一种单频输出的窄带带通滤波器

A kind of Narrow Bandpass Filter with Single Frequency Output

介绍了一种带通滤波器,其通频带窄到只允许一个频率输出,可广泛用于各种同步信号提取,分析了这种带通滤波器的电路原理和实现方法。

In this paper, a kind of BPF, band-pass filter, is introduced： This kind of BPF has a very narrow passband, that is, it only outputs a single frequency signal. So, it can be widely used to distil various synchronous signals. Its circuitry principle and its realization methods are analyzed.