Here is a short introduction to active filters and its applications. Active filters have comparable frequency selective performance when compared to passive filters. Active filters require power since operational amplifiers are involved to provide gain but do not require inductors since they can be large and lossy, especially for low frequency applications.
Briefly, let's begin the talk about the electric filter invented during World War I. These filters and… Continue
Added by John Santiago on March 1, 2010 at 6:13pm —
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