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Patent Searching and Data


Title:
CONTROL DEVICE FOR MOTOR AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2015046983
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of a motor for suppressing the non-uniform rotation of the motor.SOLUTION: The control device of a motor for outputting a first signal indicating the rotational position of a rotor and a second signal indicating the rotational frequency of the rotor includes: first detection means for detecting the rotational position of the rotor on the basis of the first signal; second detection means for detecting the rotational speed of the rotor on the basis of the second signal; holding means for holding an advance angle value; and control means for controlling currents running through a stator coil of the motor on the basis of the rotational position of the rotor detected by the first detection means, the rotational speed of the rotor detected by the second detection means and the advance angle value held by the holding means. The control means allows the rotor to rotate by using each of the plurality of advance angle values, and performs the frequency analysis of the rotational speed of the rotor rotated by each of the plurality of advance angle values to obtain the non-uniform rotation of the motor, and determines the advance angle value to be held by the holding means on the basis of the obtained non-uniform rotation.

Inventors:
HOSOYA MASAMICHI
Application Number:
JP2013176077A
Publication Date:
March 12, 2015
Filing Date:
August 27, 2013
Export Citation:
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Assignee:
CANON KK
International Classes:
H02P6/06; G03G21/00; G03G21/14
Attorney, Agent or Firm:
Yasunari Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Hideji Kimura
Shimoyama 治
Yukimitsu Nagagawa