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Sensorless stall detection for motors

  • US 20040032231A1
  • Filed: 08/22/2003
  • Published: 02/19/2004
  • Est. Priority Date: 11/17/1999
  • Status: Active Grant
First Claim
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1. A motor system comprising:

  • a motor; and

    a detector which monitors a motor command voltage spectrum for the presence of at least one stall indicating harmonic.

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