Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Is it possible to build a phase shifter from RLC components?

  1. Aug 2, 2016 #1
    Say you have a circuit component with impedence Z(\omega). Is it possible combine it in some way to resistors, capacitors, and inductors, so as to shift the phase of the impedance by a constant?
  2. jcsd
  3. Aug 2, 2016 #2
    What do you mean by the phase of the impedance?
  4. Aug 2, 2016 #3
    Do you mean the polar angle of the impedance, that is, the angle when Z is expressed in polar form? In that case, simply changing the reactance or the resistance using the formula tan(θ) = X/R will do that (where X is the reactance and R is the resistance), using the relevant form of X according to whether you are using capacitors or inductors.
  5. Aug 3, 2016 #4


    User Avatar
    Gold Member

    If you require a fixed phase shift over a band of frequencies, there are some circuits to do this. But you cannot obtain a fixed phase shift over the entire frequency spectrum.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Is it possible to build a phase shifter from RLC components?
  1. Phase Shifter (Replies: 2)