Français
3. Methods for synthesizing filters from their transfer function
To calculate and manufacture an active filter, we start by calculating its voltage transfer function from the specifications (figure
). This step is described in detail in the article Transfer functions of electrical filters
The voltage transfer function is always a rational fraction in p of the form :
The Ultimate Scientific and Technical Reference
This article is included in
Electronics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Methods for synthesizing filters from their transfer function
Basic filter blocks in cascade synthesis
Bibliography
References
Software
The calculation of an active filter is divided into two distinct parts:
transfer function calculation ;
calculation of the numerical values of the elements included in the production diagram.
Filter transfer functions can be calculated using general mathematical software such as MATLAB, Mathematica or Mathcad,...
Manufacturers, constructors
Analog Device http://www.analog.com/
Burr Brown (see Texas Instrument)
Linear Technology http://www.linear.com/
Maxim http://www.maxim-ic.com/
...
The Ultimate Scientific and Technical Reference
