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Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/056306
Kind Code:
A1
Abstract:
[Problem] To provide a motor control device that can suppress degradation of reciprocal AD conversion precision even when an A/D converter is shared with a plurality of motors. [Solution] A motor control device provided to an image formation device 301 has: a plurality of motors 167a-e that have two or more phase windings 401a-d; PWM function units 506a-e that control driving of each motor; motor drive control units 157a-c; and shared A/D converters 153 a, b that individually detect the electric current flowing in the windings of at least two phases among the phase windings of the motors, the electric current of the plurality of phases of the motors being detected with time division. Said device also has a CPU 151a for adjusting the detection timing of the electric current detection and adjusting the transition timing at which respective PWM signals 171a to 175b are generated, in order to apply the desired drive voltage to each respective winding of the motors.

Inventors:
YAMAZAKI Katsuyuki (3-30-2 Shimomaruko, Ohta-k, Tokyo 01, 〒1468501, JP)
Application Number:
JP2017/033903
Publication Date:
March 29, 2018
Filing Date:
September 20, 2017
Export Citation:
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Assignee:
CANON KABUSHIKI KAISHA (3-30-2, Shimomaruko Ohta-k, Tokyo 01, 〒1468501, JP)
International Classes:
H02P5/46; B41J29/38; H02M7/48; H02M7/493; H02P8/12
Foreign References:
JP2002272184A2002-09-20
JP2007252138A2007-09-27
JP2013090466A2013-05-13
JP2000287476A2000-10-13
Attorney, Agent or Firm:
SUZUKI Seigoh (4-5-10-10F, Shiba Minato-k, Tokyo 14, 〒1080014, JP)
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