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How does an electrical damper work.

  1. Sep 6, 2010 #1
    I am trying to find out how an electrical damper works. I know that it slowly reduces the amplitude of a current or voltage but don't know how, or even what any circuit would look like. I am not an electrician but know basics like capacitence, impedence etc so if you can help and can explain in laymans terms I would be grateful.

    Everything I have looked at on the web is very specific but I am just after the basic idea and maybe some applications.

    Thank you
     
  2. jcsd
  3. Sep 6, 2010 #2

    Do you mean electrical damping? For instance, a 2nd order system that can be underdamped, critically damped, or overdamped, based on the values of the resistor, capacitor, and inductor.
     
  4. Sep 7, 2010 #3
    What UR_Correct said essentially. Google "RLC circuits". Current oscillates between an inductor and capacitor via a resistor. Physically this is an oscillation between an electric field(cap) and a magnetic field(inductor). The resistor is an energy loss resulting in signal attenuation (with the added smaller losses associated with the cap/inductor).
     
  5. Sep 8, 2010 #4
    I Am asking about an electrical damper as UR_Correct has assumed.
     
  6. Sep 8, 2010 #5

    berkeman

    User Avatar

    Staff: Mentor

    Then this should help.

    http://en.wikipedia.org/wiki/RLC_circuit

    Welcome to the PF, BTW.
     
  7. Sep 9, 2010 #6
    Now I remember. RLC circuits are something I looked into once but didn't investigate their damping effect. Thanks everyone.:-)
     
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