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Motor control apparatus

  • US 20070182353A1
  • Filed: 04/04/2007
  • Published: 08/09/2007
  • Est. Priority Date: 06/03/2002
  • Status: Active Grant
First Claim
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1. A motor control apparatus comprising:

  • an encoder for producing a pulse output signal in synchronism with rotation of a rotor of a motor that rotates a control object;

    control means for rotating the rotor to a target position that is set by target position setting means by detecting a rotation position of the rotor on the basis of a count of the output signal of the encoder and sequentially switching a current supply phase of the motor; and

    a nonvolatile memory for storing the target position that is set by the target position setting means, wherein at starting the control means sets, as a target position of starting, the target position that is stored in the nonvolatile memory.

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