Invention Application
- Patent Title: CONTROL DEVICE FOR VIBRATION GENERATION DEVICE, ELECTRONIC APPARATUS, AND METHOD OF CONTROLLING VIBRATION GENERATION
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Application No.: US15837955Application Date: 2017-12-11
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Publication No.: US20180175759A1Publication Date: 2018-06-21
- Inventor: Akihiro IINO
- Applicant: SEIKO INSTRUMENTS INC.
- Priority: JP2016-244237 20161216; JP2017-201984 20171018
- Main IPC: H02P7/03
- IPC: H02P7/03 ; H02P25/032 ; H02P3/10 ; H02P3/12 ; H02P1/02 ; H02K7/06

Abstract:
A control device for the vibration generation device includes the vibration generation device including a stator, and a rotor provided so as to be able to rotate around a predetermined axis with respect to the stator, and having a weight having a gravity center at a position shifted from the predetermined axis, and a control section adapted to control a start-up period maximum voltage value, which is a maximum voltage value of a drive signal to be applied to the vibration generation device in a start-up period, to become larger than a steady operation period voltage value, which is a voltage value of the drive signal to be applied to the vibration generation device in a steady operation period.
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