3-Coil resonance-based wireless power transfer system for implantable electronic

Author

Ying Yi ; Buttner, Ulrich ; Yiqiang Fan ; Foulds, I.G.

Author_Institution

Electr. Eng. Dept., Electromech. Microsyst. & Polymer Integration Res. (EMPIRe) Group, King Abdullah Univ. of Sci. & Technol. (KAUST), Thuwal, Saudi Arabia

fYear

2013

fDate

15-16 May 2013

Firstpage

230

Lastpage

233

Abstract

This paper presents a 3-coil resonance-based wireless power transfer (R-WPT) system using a single layer of inductor coil windings, in a pancake configuration, in order to obtain a compact system for implantable electronic applications. A theoretical analysis and experimental measurements in terms of quality factor Q and power transfer efficiency (PTE), was done. Our proposed 3-coil scheme can achieve a high PTE with a resonance frequency of 2.46 MHz over a transfer distance of up to 30 mm, by using two 15-mm radius implant coils. The achieved experimental PTE is more than 85% at a 5 mm separation distance, and about 50% PTE at a distance of 20 mm.

Keywords

coils; prosthetics; radiofrequency power transmission; 3-coil R-WPT system; 3-coil resonance-based wireless power transfer system; PTE; compact system; distance 20 mm; distance 5 mm; frequency 2.46 MHz; implant coils; implantable electronic application; inductor coil windings; power transfer efficiency; quality factor; theoretical analysis; Coils; Couplings; Implants; Q-factor; Resonant frequency; Voltage measurement; Wireless communication; 3-Coil system; PTE; Resonance frequency; transfer distance;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Power Transfer (WPT), 2013 IEEE

Conference_Location

Perugia

Print_ISBN

978--14673-5008-2

Type

conf

DOI

10.1109/WPT.2013.6556925

Filename

6556925