Design considerations for asymmetric magnetically coupled resonators used in wireless power transfer applications

Author

Gunbok Lee ; Waters, B.H. ; Chen Shi ; Wee Sang Park ; Smith, J.R.

Author_Institution

Dept. of EE, Pohang Univ. of Sci. & Technol., Pohang, South Korea

fYear

2013

fDate

21-23 Jan. 2013

Firstpage

228

Lastpage

230

Abstract

Magnetic resonance coupling is a widely used technique for wireless power transfer (WPT) in biomedical and consumer electronics applications. For specific applications, device size limits the overall size of the transmit and receive coils. In this work, design considerations for an asymmetrical 4-element WPT system are investigated. For either a target efficiency or a desired WPT range, the optimal coil parameters such as Q and coupling coefficient are defined and these design considerations are experimentally verified. The results can be used to design an optimal set of coils for various WPT applications.

Keywords

biomedical electronics; coils; consumer electronics; inductive power transmission; asymmetric magnetically coupled resonators; asymmetrical 4-element WPT system; biomedical applications; consumer electronics applications; coupling coefficient; device size; magnetic resonance coupling; optimal coil parameters; receive coils; target efficiency; transmit coils; wireless power transfer applications; Coils; Consumer electronics; Couplings; Magnetic resonance; Mathematical model; Resistance; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Silicon Monolithic Integrated Circuits in RF Systems (SiRF), 2013 IEEE 13th Topical Meeting on

Conference_Location

Austin, TX

Print_ISBN

978-1-4673-1552-4

Electronic_ISBN

978-1-4673-1551-7

Type

conf

DOI

10.1109/SiRF.2013.6489488

Filename

6489488