information about filter

Discussion in 'General Electronics Chat' started by franticAAC, Nov 16, 2012.

  1. franticAAC

    Thread Starter Active Member

    Jun 25, 2012
    30
    1
    Hi i'm looking for the theory i.e. formulas and so on in order to design this kind of filter

    sk.jpg

    I would be grateful if you give me the name of this circuit and a tutorial or a reference where to find the description and the design procedure.
     
  2. ScottWang

    Moderator

    Aug 23, 2012
    5,796
    907
    You can search on google as following keyword, maybe you can find the info you want.

    keyword:
    A Sallen-Key 3-Pole Butterworth Active Highpass Filter
     
    SPQR likes this.
  3. crutschow

    Expert

    Mar 14, 2008
    17,615
    4,849
    Download the free FilterPro program from Texas Instrument.
     
  4. Papabravo

    Expert

    Feb 24, 2006
    11,377
    2,320
    Get a copy of

    van Valkenburg,Analog Filter Design
     
  5. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,900
    1,017
    FilterLab from Microchip is good and free.
     
  6. crutschow

    Expert

    Mar 14, 2008
    17,615
    4,849
    This is a good Active Filter reference.
     
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