High pass filter problem

Discussion in 'The Projects Forum' started by Dan Pugh, Nov 9, 2014.

  1. Dan Pugh

    Thread Starter New Member

    Nov 9, 2014
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    Anyone have any ideas on a method to calculate unknown value of C and R on a high pass filter?
    Given the option of sending any signal through the filter and monitoring the results.
    Thinking it could perhaps be analysed by send a unit step function or something similar.
     
  2. crutschow

    Expert

    Mar 14, 2008
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    Do you know the filter configuration?
     
  3. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    e.g.:

    hp.gif
     
  4. Dan Pugh

    Thread Starter New Member

    Nov 9, 2014
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  5. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    What is a .svg file? I have nothing that opens it. If you are going to post something, please use a file format that we can open...
     
  6. crutschow

    Expert

    Mar 14, 2008
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    I clicked on the downloaded file and it opened in Windows Chrome to a simple RC high-pass filter.
     
  7. crutschow

    Expert

    Mar 14, 2008
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    Obviously if have access to the circuit than you can measure the output resistor with an ohmmeter.

    But if all you can do is analyze the filter response then the best you can do is calculate the RC product as determined by the -3dB corner frequency of the filter where R*C = 1/[2*Pi*f(corner)].
     
  8. bertus

    Administrator

    Apr 5, 2008
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  9. BobTPH

    Active Member

    Jun 5, 2013
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    There are many filter calculators on the internet.

    Bob
     
  10. shteii01

    AAC Fanatic!

    Feb 19, 2010
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    Homework should be in Homework.
     
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