High-permittivity ceramic dielectrics for tuning transmission in power electronic converters

Author

Cronje, W.A. ; van Wyk, J.D. ; Holm, M.F.K.

Author_Institution

Energy Lab., Rand Afrikaans Univ., Johannesburg, South Africa

fYear

1992

fDate

18-20 May 1992

Firstpage

601

Lastpage

606

Abstract

The fabrication and application of high-permittivity ceramic materials for use in power electronic circuits are investigated. The ability to manufacture materials with a wide range of ε_r values and the influence of dielectric permittivity on the circuit behaviour of a converter employing planar connections are studied. It is shown conclusively that the circuit behavior of a power electronic circuit can be modified by only varying the properties of the materials used for supporting the connections. This mechanism can be used to improve the power transmission characteristics of the connections. Methods are described whereby the dielectric properties of BaTiO₃-based materials can be varied over a very wide range of 4⩽ε_r⩽1300. The material is manufactured in the form of tiles that can be used to support connections, acting both as insulation and as a medium to help control circuit performance

Keywords

barium compounds; ceramics; dielectric materials; insulating materials; permittivity; power convertors; power electronics; BaTiO₃ materials; ceramic dielectrics; circuit behavior; dielectric permittivity; dielectric properties; high permittivity dielectrics; high-permittivity ceramic materials; insulator dielectric properties; planar connections; planar interconnections; power convertors; power electronic circuits; power electronic converters; tiles; tuning transmission; Ceramics; Circuit optimization; Dielectric materials; Dielectrics and electrical insulation; Fabrication; Manufacturing; Permittivity; Power electronics; Power transmission; Tiles;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Components and Technology Conference, 1992. Proceedings., 42nd

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0167-6

Type

conf

DOI

10.1109/ECTC.1992.204264

Filename

204264