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Position detecting device and synchronous motor driving device using the same

  • US 20070132423A1
  • Filed: 12/11/2006
  • Published: 06/14/2007
  • Est. Priority Date: 12/12/2005
  • Status: Abandoned Application
First Claim
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1. A position detecting device for detecting a motor pole position by using two or more sensor signals, said position detecting device comprising:

  • a position detector for detecting basic-wave component signals in said sensor signals and executing position calculation; and

    correcting means for calculating signal information representing at least one of a gain, an offset and a phase from the detected basic-wave component signals, and making correction based on the calculated signal information such that a position detection error is zero.

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