a small question

Discussion in 'Homework Help' started by vamshikrishna, Dec 20, 2006.

  1. vamshikrishna

    Thread Starter New Member

    Dec 20, 2006
    1
    0
    what happens to the output graph on a CRO when we replace a PN JN diode in a rectifier with a zener diode?
    reply me soon
     
  2. Johann

    Senior Member

    Nov 27, 2006
    190
    30
    With just one rectifier diode, you will have the usual half-wave output waveform (positive half-cycle followed by a period of no conduction,then pos. half cycle again followed by no conduction etc.)

    IF REPLACED WITH ZENER DIODE: You will have positive half-cycle displayed as well as a part of the negative half cycle, clipped at exactly the zener voltage. Etc., etc.
     
  3. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    In addition to the information given by Johann, Volume III - Chapter 3 gives a pretty good explanation of the difference in characteristic when a diode is replaced by a zener diode.

    Dave
     
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