Driving device for a vibration type motor

Details Driving device for a vibration type motor Driving device for a vibration type motor

1999-01-27

2000-08-08

Ramirez, Nestor

Electricity: motive power systems

Impact, mechanical shock, or vibration-producing motors

318116, 310317, 310323, H01L 408

Patent

active

061006548

ABSTRACT:
This invention relates to a driving device for a vibration wave motor and, more particularly, to a driving device for setting the level of a driving periodic signal to a low level in driving within a predetermined range of high driving frequencies, and to a high level in driving within a predetermined range of low driving frequencies, thereby reducing the power consumption.

REFERENCES:
patent: 4833358 (1989-05-01), Suzuki et al.
patent: 4954741 (1990-09-01), Furutsu et al.
patent: 5159253 (1992-10-01), Shimizu et al.
patent: 5495152 (1996-02-01), Fukui

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