Need help about a bridge driver electronic diagram

Discussion in 'Homework Help' started by tagnon_ormain, Feb 25, 2008.

  1. tagnon_ormain

    Thread Starter New Member

    Feb 25, 2008
    1
    0
    Hello,
    I am a french student and I need some help in electronics. For my class I had to study this system :
    http://img.villagephotos.com/p/2008-2/1300357/FP1_Tx_push_pull.gif

    I know which it is a bridge driver. When Q1 and Q3 are "ON" Q2 and Q4 are "OFF". I don't know how to explain the operating : Icsat= ? ; Ibsat= ? ; etc.

    Between B3 and B4 there are an ultrasonic transducer.
    Vcc_B=5V
    Tx=0/5V

    Please help me ! Thank you
    Yours faithfully

    __________ __________ __________ __________

    Romain from Saint-Etienne (France)
     
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