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Half wave rectifier

  1. Feb 23, 2010 #1
    1. The problem statement, all variables and given/known data
    Given a Half wave rectifier circuit with the diode reversed . Vs is a sinusoid with 12 V peak , R = 1.5 ohms Vd = 0.7 V
    find the average Value of Vo , and the PIV of the Diode .

    2. Relevant equations
    average Value of Vo = (1/pi)Vs - (Vd/2)


    3. The attempt at a solution

    i calculated Vo for circuit and got Vo = (0.7 + Vs) for Vs < -0.7 and Vo = 0 for Vs > -0.7
    now i have no idea how to calculate the average value, the equation stated above was just given in the textbook with no explanation as to how they got it, but i did take an educated guess and said Vo,avg = (1/pi)Vs + (Vd/2), also i said that PIV = -Vs since this rectifier rectifies only the negative part of the input sinusoid. am i on the right track ? thanks in advance for your help
     
    Last edited by a moderator: Feb 23, 2010
  2. jcsd
  3. Feb 24, 2010 #2
    no one wants to help?
     
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