Title:
STEPPING MOTOR DRIVE DEVICE, LENS DRIVE DEVICE AND CAMERA
Document Type and Number:
Japanese Patent JP2008107556
Kind Code:
A
Abstract:
To provide a stepping motor drive device capable of reducing power consumption of a stepping motor and also restraining the degradation in shake correction performance.
The stepping motor drive device includes the stepping motors 2 and 3, and a CPU 6 having a function to switch applied voltage given to the stepping motors 2 and 3 between first applied voltage and second applied voltage. When drive frequency is equal to or under predetermined frequency, the CPU 6 divides one pulse, and switches the first applied voltage to the second applied voltage after applying the first applied voltage for predetermined time.
Inventors:
KIYAMURA KIMISUKE
Application Number:
JP2006290067A
Publication Date:
May 08, 2008
Filing Date:
October 25, 2006
Export Citation:
Assignee:
CANON KK
International Classes:
G03B5/00
Domestic Patent References:
JP2006149106A | 2006-06-08 | |||
JP2004205695A | 2004-07-22 |
Attorney, Agent or Firm:
Another role Shigehisa
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