高阶低通有源滤波器的计算机辅助设计

CAD on High Order Low - pass Active Filter

本文介绍一种高阶链接式有源滤波器ＣＡＤ的实现过程。该ＣＡＤ能计算出ｎ阶滤波器中各元件参数值，同时能自动绘制出幅频特性曲线。该方法可以推广到其它有源滤波器的设计中。

The process of development on a type of high order linked low - pass ac- tive filter CAD is introduced in the paper. The CAD can calculate all element values of n - order active filter. At the same time, it automatically outputs the graph of amplitude - frequency characteristic. This method may be applicd to the design of other filtcrs .