DC motor control circuit

Discussion in 'General Electronics Chat' started by Rich535, Aug 1, 2008.

  1. Rich535

    Thread Starter New Member

    Aug 1, 2008
    1
    0
    I am looking for a circuit that can reverse a DC motor( 12V/3A) with a +15VDC signal using mosfets. I have used contact closure and solid state relays but they have proved to be troublesome. Please advise.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,638
    2,343
    Hello,

    You will need a H-bride to reverse the motor drive direction.
    Take a look at animation 5 on this page.
    http://academics.vmi.edu/ee_dl/ee101/RobotSwitchingTutorial.htm

    There is more information on DC motors over here.
    http://www.educypedia.be/electronics/powermotor.htm

    Information on brushless DC motors can be found here.
    http://www.educypedia.be/electronics/motorBrushless.htm
    Other motor topics can be found here.

    Motor and generators: Brushless DC motors Motor AC Motor-Synchronous Single phase AC motors Generators Motor DC Robot Stepper motor Generator: asynchronous Motor overview Servomotor Stepper motor drivers
    Greetings,
    Bertus
     
  3. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Monolithic H-bridge drivers are available from competing manufacturers. You can also acquire monolithic H-bridge motor drivers, such as the LMD18200, in the power range you seek.
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    ST Microelectronics' VNH2SP30-E - Automotive Fully Integrated H-Bridge Motor Driver is one you could look at. It's so integrated that all you'd really need to control it would be a SPDT On-Off-On spring-loaded rocker or bat-handled switch.
     
  5. kammenos

    Active Member

    Aug 3, 2008
    127
    0
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