DRIVE CONTROL DEVICE AND ULTRASONIC MOTOR SYSTEM

DRIVE CONTROL DEVICE AND ULTRASONIC MOTOR SYSTEM

A drive control device is provided that drives an ultrasonic motor element including a vibrating body and piezoelectric elements provided on the vibrating body. The drive control device includes a speed detector that detects a driving speed of the ultrasonic motor element, a controller that sets dri...

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Hauptverfasser: TERASAWA, Mitsushiro, KUSHIMA, Takahito, MIZUSHIMA, Yuzo, HIGASHIYAMA, Katsuhisa, TAKATA, Masaaki
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
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creator TERASAWA, Mitsushiro
KUSHIMA, Takahito
MIZUSHIMA, Yuzo
HIGASHIYAMA, Katsuhisa
TAKATA, Masaaki
description A drive control device is provided that drives an ultrasonic motor element including a vibrating body and piezoelectric elements provided on the vibrating body. The drive control device includes a speed detector that detects a driving speed of the ultrasonic motor element, a controller that sets drive conditions of the ultrasonic motor element, and a drive circuit unit that applies a drive voltage to the piezoelectric elements based on the drive conditions set by the controller. Moreover, the controller sets the drive conditions of the ultrasonic motor element based on the accumulated operation time for each driving speed of the ultrasonic motor element.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
title DRIVE CONTROL DEVICE AND ULTRASONIC MOTOR SYSTEM
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