Steuerverfahren für einen Vibrationsaktuator mit Vibrator und Kontaktkörper, die sich Relativ Zueinander Bewegen, Antriebssteuervorrichtung, Vibrationsantriebsvorrichtung und Vorrichtung

Details

Veröffentlichungs-Nr.

EP3629467

Aktenzeichen

EP19199117

Anmeldetag

24. September 2019

Veröffentlichung

22. Dezember 2021

Erteilung

22. Dezember 2021

Rechtsraum

EP

IPC

H02N2/00

Abstract

A vibration type drive device (15) capable of maintaining stable drive performance and controllability. The vibration type drive device (15) comprises a vibration type actuator (13) comprising a vibrator and a contact body, and a drive control device (12). The drive control device (12) applies two-phase alternating current voltages to the energy conversion element of the vibrator by a drive portion (11), converts a control amount of feedback control based on the relative position/speed into a phase difference between the two-phase alternating current voltages, and outputs the phase difference to the drive portion (11) by using, for the relative movement, a phase difference of a first or second quadrant at a coordinate (in a first direction) and a phase difference of a third or fourth quadrant (in a second direction), wherein vertical axis: SIN θ, horizontal axis: COS θ, θ: phase difference.

Anmelder

Firma

CANON KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete