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can GPIO pins operates H-Bridge ckt?

Discussion in 'General Electronics Discussion' started by strameshkumar, Mar 29, 2012.

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  1. strameshkumar

    strameshkumar

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    Feb 23, 2012
    is this possible to drive a H-bridge circuit with four GPIO pins of a micro controller? if yes? can we operate Mosfet by a single GPIO?
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    In principle: Yes
    In detail: depends on the operating voltage of the H-bridge and the transistors used (n-channel, p-channel, mixed? Which treshold voltages?)

    Harald
     
  3. strameshkumar

    strameshkumar

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    Feb 23, 2012
    if the H-bridge run in 48v and the mosfet driving PWM voltage is 15v and can we use this GPIO pins
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Definitely not directly. You'll need a level shifter to adapt the GPIO's level (5V or even 3.3 V only) to the 48 V.

    Harald
     
  5. strameshkumar

    strameshkumar

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    Feb 23, 2012
    thanks for your tips.
    what is mean by bootstrapping driver for H-bridge
     
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