Driving circuit of a vibration wave motor

Details Driving circuit of a vibration wave motor Driving circuit of a vibration wave motor

1987-01-21

1987-12-15

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310323, 310328, H01L 4108

Patent

active

047135719

ABSTRACT:
This specification discloses a vibration wave motor in which frequency signals of different phases are applied to electro-mechanical energy converting elements such as electrostrictive elements disposed at different positions to thereby form a travelling vibration wave in a member in which the converting elements are disposed and a moving member is driven by the vibration wave and particularly in which the phase difference between the frequency signals applied to the energy converting elements is held at a particular value.

REFERENCES:
patent: 4510411 (1985-04-01), Hakamata et al.
patent: 4658172 (1987-04-01), Izukawa

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