Title:
駆動装置および駆動方法
Document Type and Number:
Japanese Patent JP4561164
Kind Code:
B2
Abstract:
To provide a driving device, utilizing an electromechanical conversion element, having a driving pulse generating means capable of generating a sawtooth waveform driving voltage with a simple circuit configuration. The driving device includes: an electromechanical conversion element which is connected to the driving pulse generating means and extends and contracts, and one end of which in an extension/contraction direction is fixed; a rod, one end of which is fixed to the other end in an extension/contraction direction of the electromechanical conversion element; and a moving body, frictionally coupled to the periphery of the rod, moving along the rod corresponding to the vibration of the rod due to the extension/contraction of the electromechanical conversion element. In this device, four voltage values increasing sequentially in steps are applied cyclically to the electromechanical conversion element, and by the resulting sawtooth vibration displacement caused in the rod, the moving body is driven in one direction along the rod. Further, four voltage values decreasing sequentially in steps are applied cyclically, and by the resulting sawtooth vibration displacement caused in the rod, the moving body is driven in a direction opposite the one direction along the rod.
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Inventors:
Tomoyuki Yuasa
Application Number:
JP2004127872A
Publication Date:
October 13, 2010
Filing Date:
April 23, 2004
Export Citation:
Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
G02B7/04; H02N2/00; H01L41/04; H01L41/09
Domestic Patent References:
| JP11098865A | ||||
| JP3210812A | ||||
| JP9191676A | ||||
| JP2001211669A | ||||
| JP63122085A | ||||
| JP10107976A |
Attorney, Agent or Firm:
Hiroshi Yamazaki
Atsushi Maeda
Atsushi Maeda