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Constant phase shift

  1. Mar 16, 2009 #1
    Hi

    Is anyone aware of a circuit that could provide a phase shift independent of frequency?
    I have thought of doing it digitally but the number of components needed are ridicules.

    Thank you
     
  2. jcsd
  3. Mar 16, 2009 #2
    a delay line?
     
  4. Mar 16, 2009 #3

    The Electrician

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    Gold Member

    What's your purpose?

    How much phase shift? Over what frequency range?
     
  5. Mar 16, 2009 #4

    MATLABdude

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    ...and do you mean a constant phase shift in terms of number of micro/nano seconds, or a constant phase shift in terms of % of period?
     
  6. Mar 27, 2009 #5
    A standard audio treble attenuator based on an R C circuit produces a phase shift that is dependent on frequency: 1 radian per neper, or 6.6 degrees per dB. This distorts the sound quality of the audio. How can we eliminate the phase shift?
     
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