Design and Characterization of Wireless Power Links for Brain–Machine Interface Applications

Author

Rongxiang Wu ; Wei Li ; Heping Luo ; Sin, Johnny K. O. ; Yue, C. Patrick

Author_Institution

State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

29

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

5462

Lastpage

5471

Abstract

In this paper, the design of an inductive power link (IPL) for wireless power transfer (WPT) in brain-machine interface (BMI) applications is thoroughly studied. The constraints and requirements of BMI applications are analyzed. By theoretical derivations, the relationships between the IPL performances and its electrical parameters are determined. The design guidelines for the IPL physical parameters are then obtained through experimental characterizations. Experimental results show that with proper IPL design, the efficiency can be improved from the previously reported values of 29.9% and 4.3% to 33.1% and 9.2% for BMI WPT distances of 5 and 12.5 mm, respectively.

Keywords

brain-computer interfaces; inductive power transmission; prosthetic power supplies; BMI applications; IPL performances; WPT; brain machine interface applications; electrical parameters; inductive power link design; wireless power link characterization; wireless power transfer; Coils; Couplings; Implants; Metals; Power demand; Semiconductor device measurement; Wireless communication; Implantable biomedical devices; inductive power link (IPL); wireless power transfer (WPT);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2014.2301173

Filename

6718154