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Titre du document / Document title

Inductance calculation of planar multi-layer and multi-wire coils : An analytical approach

Auteur(s) / Author(s)

PETERS Christian ; MANOLI Yiannos ;

Résumé / Abstract

This paper describes for the first time an analytical algorithm for calculating the inductance of planar multi-wire coils with arbitrary number of parallel wires and layers. The special topology of multi-wire coils, with many parallel wires connected at both endings, allows efficient telemetric energy transfer and low Joule losses due to a reduced DC resistance. The algorithm is based on an integral solution starting from Biot-Savart's law and allows a fast calculation of the coil inductance. The algorithm is verified with a large number of fabricated and measured coils with inductance values ranging from 45 nH to 10 μH. The small coils are microfabricated on a polyimide foil with electroplated gold wires. The larger coils are realized on a printed circuit board. The coils have up to seven parallel wires and two layers. The inductance is measured at 1 MHz and shows good agreement to the calculation results. The error between calculation and measurement is less than 10% and proves the correctness of the presented algorithm.

Revue / Journal Title

Sensors and actuators. A, Physical    ISSN  0924-4247 

Source / Source

2008, vol. 145-146, pp. 394-404 [11 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1990) (Revue)

Mots-clés d'auteur / Author Keywords

Planar coil

;

Multi-wire

;

Multi-layer

;

Inductance

;

Algorithm

;

Localisation / Location

INIST-CNRS, Cote INIST : 19425 A, 35400019787515.0530

Nº notice refdoc (ud4) : 20428647



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