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dc motor driver

Discussion in 'Sensors and Actuators' started by din noh, May 4, 2010.

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  1. din noh

    din noh

    Apr 28, 2010
    hi everyone !

    so...anyone...any interesting circuit to share wit me ?
    i'm searching for DC Servo motor driver..
    for the controller, i'm using PID controller implemeted as operational amplifier LM741..
    tq !
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    To eliminate useless guessing, can you give us some idea of the voltage and current requirements?

    An indication of what will be driving it would be cool too.
  3. Jhon Smitch

    Jhon Smitch

    May 7, 2010
    I used the L298 for driving the stepper motors in one of my robots so I have some experience with it. Here's some things you might check. Make sure the "sense" outputs (pins 1 and 15) are grounded directly or through a resistor if a current sensing circuit is employed. Make sure you provide a logic level supply to pin 9 (+ 5 v) and do not exceed that voltage on the control inputs. You also need to provide a positive supply to pin 4 of the voltage used to run your motor(s). You can use the logic supply for both if your motors will work adequately on +5v.
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