A circular cylindrical, radially polarized ceramic shell piezoelectric transformer

Author

Chen, Weiqiu ; Lü, Chaofeng ; Yang, Jiashi ; Wang, Ji

Author_Institution

Dept. of Civil Eng., Zhejiang Univ., Hangzhou

Volume

56

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1238

Lastpage

1245

Abstract

We propose a circular cylindrical shell piezoelectric transformer of radially polarized ceramics operating in thickness-stretch modes. Two theoretical analyses involving different approximations are performed on the proposed transformer using the 3-D equations of linear piezoelectricity. The transforming ratio, input admittance, and efficiency of the transformer are calculated and compared with those of a previously analyzed circular cylindrical shell transformer of axially polarized ceramics operating in shear modes.

Keywords

piezoceramics; piezoelectric transducers; piezoelectricity; transformers; 3D linear piezoelectricity equations; ceramic shell piezoelectric transformer; circular cylindrical piezoelectric transformer; input admittance; radially polarized piezoelectric transformer; thickness stretch mode operation; transformer efficiency; transforming ratio; Admittance; Ceramics; Differential equations; Performance analysis; Piezoelectric polarization; Piezoelectricity; Ceramics; Computer-Aided Design; Electronics; Energy Transfer; Equipment Design; Equipment Failure Analysis; Magnetics; Micro-Electrical-Mechanical Systems; Reproducibility of Results; Sensitivity and Specificity;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2009.1165

Filename

5075106