Output Stage

Discussion in 'General Electronics Chat' started by SimonAB, May 25, 2010.

  1. SimonAB

    Thread Starter Member

    Jul 30, 2008
    13
    0
    Hi,

    What is the difference between complementary and quasi compementary Class AB output stages?

    Thanks
     
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    You can find out in Google.

    A complementary output stage uses comlementary output transistors. One NPN and one PNP.
    A quasi-complementary output stage used two NPN output transistors and a little NPN and PNP driver stage because a long time ago power PNP transistors were very expensive or not available.
     
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