Electric and magnetic FEM modeling strategies for micro-inductors

Author

Driesen, J. ; Ruythoren, W. ; Belmans, R. ; De Boeck, J. ; Celis, J.P. ; Hameyer, K.

Author_Institution

Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3577

Lastpage

3579

Abstract

Electroplated micromagnetic components, such as planar and toroidal inductors and transformers with ferromagnetic cores are promising devices. The characteristics of the materials used in these micro-scale components differ significantly from the properties of the common materials used in large-scale magnetics. The dimensional constraints due to the fabrication process form a main difference as well. For the design of such devices, two- and three-dimensional numerical field modeling techniques, such as FEM, are essential. This paper discusses modeling strategies combining two- and three-dimensional FEM methods, along with circuit equations, allowing investigation of the behaviour and design of new components

Keywords

eddy current losses; inductors; laminations; magnetic cores; magnetic flux; magnetic leakage; mesh generation; micromechanical devices; dimensional constraints; eddy currents; electric FEM modeling; electroplated micromagnetic components; flux line distribution; leakage inductance; magnetic FEM modeling; micro-inductors; modeling strategies; planar inductors; three-dimensional FEM methods; toroidal inductors; two-dimensional FEM methods; vector potential; vertical laminations effect; Fabrication; Inductors; Large-scale systems; Magnetic cores; Magnetic materials; Magnetic properties; Micromagnetics; Numerical models; Toroidal magnetic fields; Transformer cores;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800595

Filename

800595