A quick design method provided for the high order Butterworth low pass electrical filter
Zhongshen Li · Industrial Instrumentation & Automation · 2007
It is very complicated to realize the high order Butterworth low pass filter,so the paper puts forth a quick design method to implement this kind of filter.It is deduced that the odd high order Butterworth low pass electrical filter can be cascaded by one 1st order Butterworth low pass electrical filter and some 2nd electrical filters.It is also deduced that the even high order Butterwoth low pass electrical filter can be cascaded by some 2nd electrical filters.The formula for calculating the component parameters of the high order Butterworth low pass electrical filter are given.With the help of these formula,the above-said filter can be designed quickly.