1. Limited time only! Sign up for a free 30min personal 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!

How to analyze diode circuits? (Find waveform generated)

  1. Nov 1, 2016 #1
    1. The problem statement, all variables and given/known data
    To analyze these circuits, we need to draw the current path right? I know that current can only flow one direction through a diode.
    http://i.imgur.com/kipBcax.png


    2. Relevant equations
    N/A

    3. The attempt at a solution
    Are these paths correct? Green = positive, red = negative
    1. Positive edge can only go through diode 1, so the positive edge gets clipped to +0.7V. Negative edge can only go through diode 2, so negative edge gets clipped to -0.7V
    http://i.imgur.com/Sx8MvpY.png

    2. Positive edge of top waveform can go through top diode. Negative edge of top waveform cannot.
    Positive edge of bottom waveform cannot go through bottom diode. Negative can.
    Results in rectified wave form capped at 5.6V due to the Zener
    http://i.imgur.com/XYa5e5H.png

    3. Don't really know how this one works

    4. The waveform for this would 'start' from 4.3V (5V - 0.7V) and get clipped at 12.74V (14.14V - 2x0.7V)
    http://i.imgur.com/iTStF8O.png

    5. The positive edge can go through the diode but the negative one cannot. What would the waveform look like?
    http://i.imgur.com/DoMnqwM.png

    Am I doing these questions right?
     

    Attached Files:

  2. jcsd
  3. Nov 2, 2016 #2

    cnh1995

    User Avatar
    Homework Helper

    Check out this thread from the beginning.
    https://www.physicsforums.com/posts/5590333/
     
  4. Nov 2, 2016 #3

    NascentOxygen

    User Avatar

    Staff: Mentor

    Then come back and let us know if there remain any unanswered questions, .
     
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: How to analyze diode circuits? (Find waveform generated)
Loading...