Design study and fabrication techniques for high power density microtransformers

Author

Brunet, Magali ; O´Donnell, Terence ; O´Brien, John ; McCloskey, Paul ; O´Mathuna, C.

Author_Institution

PEI Technol., Cork, Ireland

Volume

2

fYear

2001

fDate

2001

Firstpage

1189

Abstract

This paper presents an investigation into the power density and efficiency achievable from microtransformers suitable for integration on silicon. Results from the design study indicate that high aspect ratio conductors and laminated cores are required to achieve high power density. Fabrication techniques, using thick photoresist, which can be used to achieve high aspect ratios, have been developed and results are presented. Initial test results for the inductance and resistance of the coils are also presented

Keywords

coils; electric resistance; inductance; laminations; micromachining; transformer cores; transformers; coil inductance; coil resistance; efficiency; fabrication techniques; high aspect ratio conductors; high aspect ratios; high power density; high power density microtransformers; laminated cores; silicon; thick photoresist; DC-DC power converters; Fabrication; Inductance; Magnetic films; Microprocessors; Power supplies; Silicon; Switches; Thin film circuits; Transformer cores;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-6618-2

Type

conf

DOI

10.1109/APEC.2001.912516

Filename

912516