- 专利标题: Method of driving a driving apparatus
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申请号: US15435040申请日: 2017-02-16
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公开(公告)号: US10511237B2公开(公告)日: 2019-12-17
- 发明人: Akira Suzuki , Masaru Uno , Kazutomo Imi , Yoshiaki Haga
- 申请人: TDK Corporation
- 申请人地址: JP Tokyo
- 专利权人: TDK CORPORATION
- 当前专利权人: TDK CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Arent Fox LLP
- 优先权: JP2012-208675 20120921
- 主分类号: H02N2/06
- IPC分类号: H02N2/06 ; H02N2/02 ; B06B1/06
摘要:
The present invention provides a driving apparatus capable of suppressing the operation noise. A driving apparatus comprises a piezoelectric element expanding and contracting in accordance with a driving signal; a supporting shaft connected to said piezoelectric element; a movable body frictionally engaged with said supporting shaft and capable of moving along said supporting shaft; and a driving portion applying said driving signal including a first driving signal which moves said movable body towards a first direction to said piezoelectric element, wherein said driving portion can repeatedly apply said first driving signal against said piezoelectric element by taking a first time in between, and said first driving signal comprises a main driving waveform group which moves said movable body to said first direction, and a sub driving waveform group which is placed after said main driving waveform group by having a second rest time shorter than said first time in between.
公开/授权文献
- US20170163177A1 METHOD OF DRIVING A DRIVING APPARATUS 公开/授权日:2017-06-08
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