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Cordless drill motors?

Discussion in 'Electronic Design' started by John Doe, Oct 3, 2008.

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  1. John Doe

    John Doe Guest

    Typically or generally speaking. If you apply 18 V to a 36 V motor
    (basically the same motor design except the difference in voltage, each
    for powering a cordless drill), will it run more powerfully but more
    slowly than 18 V applied to an 18 V motor? Or maybe they gear down the
    higher voltage motor as it runs at a higher rpm?

  2. Jasen Betts

    Jasen Betts Guest

    that depends on the 18V motor and the 36V motor.
    usually they want the tool to run faster, or they build the motor
    to run at the speed they want.

  3. Guest

    No, it just runs slower, half speed roughly. for a typical PM DC motor
    Speed is proportional to voltage, torque is proportional to current,
    power is the product of the two, over the motors normal operating
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