Mosfets in Simple 4 FET H Bridge

Discussion in 'The Projects Forum' started by kashif22041, Sep 18, 2009.

  1. kashif22041

    Thread Starter New Member

    Sep 18, 2009
    1
    0
    Hello

    I want to build an H bridge to control a servo motor as an DC motor and want to use MOSFETS.

    But i m not sure what are the MOSFET no's to be used. My motor is a 12v motor.

    PLease also tell if the no. u r stating is for PMOS or for NMOS.

    Thanks for ur time.:):):)
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    How much current does your motor require?
     
  3. JDT

    Well-Known Member

    Feb 12, 2009
    658
    85
    Instead of building one out of separate transistors, have you thought of using a fully integrated device like the LMD18200? It's got controlling logic and current sensing built in as well.

    See:- http://www.national.com/ds/LM/LMD18200.pdf

    It is specified to work at 12V.
     
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