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Motor drive with velocity-second compensation

  • US 7,109,670 B1
  • Filed: 05/25/2005
  • Issued: 09/19/2006
  • Est. Priority Date: 05/25/2005
  • Status: Active Grant
First Claim
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1. An apparatus for use with a signal generator and a motor controller, where the signal generator provides a reference velocity signal, and the motor controller receives an output signal and uses the output signal to control a torque input signal applied to the motor, comprising:

  • a velocity compensator operable to receive the reference velocity signal, determine a derivative of the reference velocity signal, and generate a velocity compensation signal based on the derivative;

    an adjustor operable to adjust the reference velocity signal as a function of the velocity compensation signal; and

    a velocity regulator operable to compare the adjusted reference velocity signal to a feedback velocity signal and generate the output signal received by the motor controller for adjusting the torque input signal based on the comparison.

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