Invention Grant
US07701116B2 Motor driving method, program therefor, and motor driving apparatus
有权
电机驱动方法,程序及电机驱动装置
- Patent Title: Motor driving method, program therefor, and motor driving apparatus
- Patent Title (中): 电机驱动方法,程序及电机驱动装置
-
Application No.: US11554238Application Date: 2006-10-30
-
Publication No.: US07701116B2Publication Date: 2010-04-20
- Inventor: Akio Atsuta
- Applicant: Akio Atsuta
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-330681 20051115
- Main IPC: H02N2/06
- IPC: H02N2/06

Abstract:
Provided are a motor driving method, a program therefor, and a motor driving apparatus which can shorten starting time of a vibration wave motor. A driving circuit of the vibration wave motor includes a control unit. The control unit controls two-phase driving voltages applied to an electro-mechanical energy conversion element of the vibration wave motor. The control unit controls a phase difference between the two-phase driving voltages to drive a driven member at a predetermined speed in a fixed state of frequencies of the two-phase driving voltages. In this case, when the phase difference is set outside a predetermined range, the control unit changes the frequencies of the two-phase driving voltages.
Public/Granted literature
- US20070108870A1 MOTOR DRIVING METHOD, PROGRAM THEREFOR, AND MOTOR DRIVING APPARATUS Public/Granted day:2007-05-17
Information query