Title:
MOTOR CONTROL APPARATUS, LENS APPARATUS, IMAGING APPARATUS AND MOTOR CONTROL METHOD
Document Type and Number:
Japanese Patent JP2019022280
Kind Code:
A
Abstract:
To provide a control apparatus for a motor capable of suppressing an initialization operation according to a position at a time of instantaneous interruption of power supply.SOLUTION: The motor control apparatus that controls driving of a motor having a plurality of stable points at which a movable element stably stops when a current is not supplied, includes: a monitoring unit that monitors a supply state of power to the motor; a storage unit that stores a target value of the control; a control unit that performs the control by setting one of the target values stored in the storage unit and a target value corresponding to the stable point as the target value of the control when an abnormality in the supply state is detected by the monitoring unit, based on the target value stored in the storage unit.SELECTED DRAWING: Figure 1
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Inventors:
YONEZAWA TAKASHI
Application Number:
JP2017137130A
Publication Date:
February 07, 2019
Filing Date:
July 13, 2017
Export Citation:
Assignee:
CANON KK
International Classes:
H02P8/34; H02P8/22
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Masami Saito
Takao Ochi
Koji Yoshizawa
Masami Saito