Class b amplifier

Discussion in 'Homework Help' started by fmm, May 18, 2009.

  1. fmm

    Thread Starter New Member

    May 11, 2009
    1
    0
    hi..i'm having some problem with this question (see attachment for figure)...and am not sure whether what i've done is correct​


    for maximum power to load i calculated
    0.5*((12.73)^2)/12) = 6.75 w ....(is this correct?)

    for efficiency of this output stage i calculated
    ∏/4 * (12.73/20) * 100 = 50 % .....(is this correct?)

    how do i get the maximum peak value of input Vi?

    i'm not sure how to get the breakdown voltage of each transistor?

    if the output stage delivers 36% more power to the load..hw do i calculate the percentage the power supply voltage must be increased by?

    thanks

     
  2. PRS

    Well-Known Member

    Aug 24, 2008
    989
    35
    Is that 12 ohms at the output? What is the voltage?
     
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