Drive method and drive device of vibration actuator

Details Drive method and drive device of vibration actuator Drive method and drive device of vibration actuator

1997-12-19

2000-02-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

06020673&

ABSTRACT:
In order to make micro-movement possible using burst signals (pulses), a vibration actuator that includes an elastic member and a plurality of piezoelectric members attached to the elastic member is operable in a first drive mode and in a second drove mode. In the first drive mode, two-phase drive signals are provided to the piezoelectric members. In the second mode, one-phase drive signals are supplied to one of the plurality of piezoelectric elements in the form of burst signals.

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