Mixed analytical and numerical design method for piezoelectric transformers

Author

Sánchez, A.M. ; Sanz, M. ; Prieto, R. ; Oliver, J.A. ; Cobos, J.A.

Author_Institution

Div. de Ingenieria Electronica, Univ. Politecnica de Madrid, Spain

Volume

2

fYear

2003

fDate

15-19 June 2003

Firstpage

841

Abstract

Analytical models are widely used for piezoelectric transformers (PTs) design. In this paper, the additional usefulness of finite element analysis (FEA) for PT design will be shown. With FEA it is possible to optimize the PT design not only by maximizing the energy transference, but cleaning the working frequency range of spurious modes (geometrical 2D/3D effects). Besides, FEA tools allow studying other interesting aspects of the PT design such as the manufacturing tolerances or the influence of the fixing layer on the PT performance (which is a critical design point). A mixed analytical and numerical design method for PT is proposed.

Keywords

finite element analysis; piezoelectric devices; transformers; critical design point; energy transference maximisation; finite element analysis; geometrical 2D/3D effects; manufacturing tolerances; numerical design method; piezoelectric transformers; spurious modes; working frequency; Analytical models; Design methodology; Design optimization; Electrodes; Equations; Finite element methods; Frequency; Geometry; Topology; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual

ISSN

0275-9306

Print_ISBN

0-7803-7754-0

Type

conf

DOI

10.1109/PESC.2003.1218166

Filename

1218166