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

Neper frequency

  1. Aug 22, 2012 #1
    I don't quite have a good understanding of what exactly the neper frequency is. I've seen it derived it from certain circuits before and it was never really clear what it was. In a series RLC circuit it was simple enough to find since we were given a nice second order differential from which to take to the S domain and solve for with a quadratic formula and then pull out the neper frequency from :

    -α +-√α2o2

    α-neper frequency
    ωo- resonant radian frequency

    In a filter such as (see attachment) how would one derive the neper frequency since it does not fall so neatly into a second order polynomial. I get


    which doesnt fall so neatly into the quadratic formula nor has a term in the first order. Am i to assume this filter has no neper frequency? Or a Q factor?

    Thanks for your time

    Attached Files:

    • ckt.png
      File size:
      1.6 KB
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted