三阶有源低通滤波器设计与仿真分析

The Design and Simulation Analysis of Three-Pole Active Low Pass Filters

利用子系统的级联及归一化方法设计了三阶有源低通滤波器,给出了系统传递函数的计算及参数选取的详细过程,并对电路进行了仿真.实验结果表明,通过调试阻容参数,可以得到性能良好的三阶有源低通滤波器.

In this paper, a three-pole active filter is designed adopting the subsystem＇s cascading and normalization. The transfer function of the system is calculated and the process of selecting the circuit parameters is presented in details in this paper. The circuit is simulated. It＇s proved with experiment that three-pole active filter with excellent performance can be acquired by adjusting the value of resistance and capacitance.