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    • 53. 发明申请
    • Driving device and driving system
    • 驱动装置和驱动系统
    • US20070030318A1
    • 2007-02-08
    • US11493227
    • 2006-07-26
    • Junji SatoJunichi TaniiYoshihiro HaraAkira Kosaka
    • Junji SatoJunichi TaniiYoshihiro HaraAkira Kosaka
    • B41J2/045
    • H02N2/067H02N2/025
    • Drive technology is provided which makes suitable low velocity driving and smooth changing of driving velocity possible and achieves reduced power consumption. In the driving device, the drive unit is driven which engages with drive shaft which moves back and forth in tandem with extension and contraction of the piezoelectric element. In this driving device, when the output cycle for cycle Te is repeated such that the voltages applied to the piezoelectric element 11 are the maximum value (+Vp), the minimum value (−Vp), and the middle value (0V), the movement velocity of the drive unit 13 can be changed by thinning the output cycle at cycle Tf. As a result, suitable low velocity driving can be carried out and power consumption can be reduced in the drive unit.
    • 提供驱动技术,使得适当的低速驱动和驱动速度的平滑变化成为可能,并实现降低的功耗。 在驱动装置中,驱动单元与驱动轴啮合,该驱动轴与压电元件的伸缩一起前后移动。 在该驱动装置中,当重复循环Te的输出周期,使得施加到压电元件11的电压为最大值(+ Vp)时,最小值(-Vp)和中间值(0V), 驱动单元13的移动速度可以通过在周期Tf变薄输出周期来改变。 结果,可以实现合适的低速驱动,并且可以在驱动单元中降低功耗。