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What is sensing voltage?

Discussion in 'Robotics & Mechatronics' started by Iawia, May 21, 2013.

  1. Iawia

    Iawia Member

    Joined:
    Jul 21, 2011
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    Location:
    San Diego, California US
    Hi,

    I am trying to control the movement of a small cart with two hobby motors (12v). Looking at the L-298 there are two pins for 'Sense A' and 'Sense B', one for each H bridge.

    I have read the datasheet several times, stared at the block diagram, however being not very much studied at this topic, I still do not get the jargon and use of these pins.

    If I want the motors to run at full power from the pwm signals on the base, do I just set this pin to ground?

    Thanks for clearing this up!
     

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  2. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

    Joined:
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    hi,
    Its a pin/s on the L298 where the user can monitor [ sense] the current flowing in the external resistor , by measuring the voltage drop across a known value resistor.

    E.
     

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  3. Iawia

    Iawia Member

    Joined:
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    Location:
    San Diego, California US
    Ok Thanks Eric.
     

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