Analysis of piezoelectric transformer by using finite element method and equivalent-circuit considering load variation

Author

Joo, Hyun Woo ; Lee, Chang-Hwan ; Jung, Hyun-Kyo

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

1

fYear

2001

fDate

2001

Firstpage

459

Abstract

The three-dimensional finite element analysis for piezoelectric transformers is presented. Numerically combined equivalent-circuit method for consideration of load variation, is proposed. The three-dimensional finite element routine in this paper is confirmed experimentally by analyzing piezoelectric transducer. Using results from finite element analysis of piezoelectric transformer, equivalent-circuit parameters of piezoelectric transformer are obtained. The method to calculate loss parameter of piezoelectric transformer is proposed. Characteristics of piezoelectric transformer due to load variation are analyzed. The validity of the proposed method is confirmed by loss calculations

Keywords

dielectric losses; equivalent circuits; finite element analysis; piezoelectric devices; transformers; equivalent-circuit parameters; finite element method; load variation; loss calculations; loss parameter; piezoelectric transducer; piezoelectric transformer; Dielectrics; Electrodes; Equations; Finite element methods; Frequency; Load management; Piezoelectric devices; Piezoelectric transducers; Resonance; Surface impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2001 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7177-1

Type

conf

DOI

10.1109/ULTSYM.2001.991663

Filename

991663