Invention Grant
US09252686B2 Drive control apparatus and drive control method for vibration wave driving apparatus
有权
用于振动波驱动装置的驱动控制装置和驱动控制方法
- Patent Title: Drive control apparatus and drive control method for vibration wave driving apparatus
- Patent Title (中): 用于振动波驱动装置的驱动控制装置和驱动控制方法
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Application No.: US13575003Application Date: 2011-01-25
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Publication No.: US09252686B2Publication Date: 2016-02-02
- Inventor: Kiyoshi Nitto
- Applicant: Kiyoshi Nitto
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2010-016678 20100128
- International Application: PCT/JP2011/000385 WO 20110125
- International Announcement: WO2011/093060 WO 20110804
- Main IPC: H02K33/00
- IPC: H02K33/00 ; H02N2/14
Abstract:
Provided are a drive control apparatus and a drive control method for a vibration wave driving apparatus enabling a wider dynamic range and increased quietness. The drive control apparatus for a vibration wave driving apparatus of the present invention is a drive control apparatus for a vibration wave driving apparatus in which, by providing a drive signal to a vibrator provided with an electro-mechanical energy conversion device, a driven part in contact with the vibrator is relatively moved, wherein, when the driven part is activated by changing a frequency of the drive signal, a time throughout which the drive signal is made to be in an off state is provided every time the frequency is changed.
Public/Granted literature
- US20120286704A1 DRIVE CONTROL APPARATUS AND DRIVE CONTROL METHOD FOR VIBRATION WAVE DRIVING APPARATUS Public/Granted day:2012-11-15
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