Implementation of H bridge using BJT's....

Discussion in 'General Electronics Chat' started by JithinSudhakarT, Jan 11, 2013.

  1. JithinSudhakarT

    Thread Starter New Member

    Jan 3, 2013
    1
    0
    Hai....
    I am trying to implement H bridge to replace motor driver IC which must act as an interface between microcontroller and DC motor ...I have selected transistors
    BC547(npn) & BC546(pnp) with hfe(=40).But now i am confused due to back emf that will caused by the motor.How can i overcome with this back emf caused by the motor.............???????????????????
     
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,073
    3,846
    Post a copy of your circuit (without diodes), we will tell you where to put them.
     
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