1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electricity - Half wave rectifier

  1. Mar 19, 2007 #1
    1. The problem statement, all variables and given/known data

    A half wave rectifier is supplying a load current of 100 mA. The input frequency is 60 Hz. Find the capacitor value required to limit the ripple ot 160 mVpp.

    Really... I can solve this I'm sure... But I'm wondering what formula I need to use... I've never been shown one in class, and I don't have a textbook, so a little help with a formula would be nice...
  2. jcsd
  3. Mar 20, 2007 #2
    its V = IR
  4. Mar 22, 2007 #3
    somebody please?
  5. Mar 22, 2007 #4


    User Avatar
    Homework Helper

    I think the equation you're looking for is [tex]V_r=I_{dc}/fC[/tex].
    Where Vr is the ripple voltage, Idc is the direct current, f is the frequency of the supply voltage, and C is the capacitance. But I would do a search for something like "half-wave rectifier capacitor filter" to learn about it and be sure that you agree with it. OK? I don't want to mislead you.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Electricity - Half wave rectifier
  1. Electricity economics (Replies: 0)