Shielded coil structure suppressing leakage magnetic field from 100W-class wireless power transfer system with higher efficiency

Author

Kim, Hongseok ; Song, Chiuk ; Kim, Jonghoon ; Kim, Jiseong ; Kim, Joungho

Author_Institution

Div. of Future Vehicle, Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

fYear

2012

fDate

10-11 May 2012

Firstpage

83

Lastpage

86

Abstract

In this paper, the shielded coil structure using the ferrites and the metallic shielding is proposed. It is compared with the unshielded coil structure (i.e. a pair of circular loop coils only) to demonstrate the differences in the magnetic field distributions and system performance. The simulation results using the 3D Finite Element Analysis (FEA) tool show that it can considerably suppress the leakage magnetic field from 100W-class wireless power transfer (WPT) system with the enhanced system performance.

Keywords

coils; ferrites; finite element analysis; interference suppression; magnetic fields; magnetic leakage; magnetic shielding; microwave power transmission; 3D FEA; WPT system; coil structure shielding; ferrite shielding; finite element analysis; magnetic field distribution; magnetic field leakage suppression; metallic shielding; power 100 W; wireless power transfer system; Coils; Electromagnetic compatibility; Ferrites; Magnetic fields; Magnetic noise; Magnetic shielding; EMC; EMF; EMI; Wireless power transfer; leakage magnetic field; shielding;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications (IMWS), 2012 IEEE MTT-S International

Conference_Location

Kyoto

Print_ISBN

978-1-4673-1777-1

Type

conf

DOI

10.1109/IMWS.2012.6215825

Filename

6215825