Control apparatus for vibration type actuator and electronic...

Details Control apparatus for vibration type actuator and electronic... Control apparatus for vibration type actuator and electronic...

2005-11-01

2005-11-01

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

06960853

ABSTRACT:
The present invention discloses a control apparatus for a vibration type actuator that can perform the drive of a driven member in a short time. The control apparatus for a vibration type actuator that excites vibration in a vibration body by applying a frequency signal to an electro-mechanical energy converting element and relativity moves the vibration body and a contact body contacting to this vibration body includes a determination unit determining the drive direction of the vibration type actuator, and a frequency setting unit modifying a frequency of the frequency signal according to whether the drive direction of the vibration type actuator determined by the determination unit is the same as or reverse to the last drive direction at the startup of the vibration type actuator.

REFERENCES:
patent: 3401892 (1968-09-01), Meyers
patent: RE30068 (1979-08-01), Meyers
patent: 5767645 (1998-06-01), Park
patent: 5-38553 (1988-08-01), None

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