Ultrasonic motor drive using LLCC resonant technique

Faa Jeng Lin, Rou Yong Duan, Hsin Hai Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

An LLCC resonant circuit is implemented in this study to build a high-frequency two-phase voltage source inverter for the piezoelectric ultrasonic motor (USM). First, a single-phase equivalent model of the USM is described. Then the operating principle and detailed analysis of the proposed driving circuit for the USM, in which the inherent parasitic capacitances formed by the polarized piezoelectric ceramic of the USM are parts of the two LLCC resonant circuits, are introduced. Since the dynamic characteristic of the USM is greatly influenced by the variation in the quality factors of the RLC resonant tanks, the drive will be operated about a geometric frequency where the amplitude and phase of the two-phase output voltages of the resonant inverter would not be influenced by the variation in the quality factors. Detailed experimental results are provided to demonstrate the effectiveness of the proposed driving circuit.

Original languageEnglish
Title of host publicationPESC Record - IEEE Annual Power Electronics Specialists Conference
Pages947-952
Number of pages6
DOIs
StatePublished - 1999
EventProceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99) - Charleston, SC, USA
Duration: 27 Jun 19991 Jul 1999

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
Volume2
ISSN (Print)0275-9306

Conference

ConferenceProceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99)
CityCharleston, SC, USA
Period27/06/991/07/99

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