Improvement of power efficiency of inductive links for implantable devices

Author

Silay, Kanber Mithat ; Dehollain, Catherine ; Declercq, Michel

Author_Institution

Ecole Polytech. Fed. de Lausanne, Inst. of Electr. Eng., Lausanne

fYear

2008

fDate

June 22 2008-April 25 2008

Firstpage

229

Lastpage

232

Abstract

This paper presents the analysis of inductive links for remote powering of implantable devices and a method to improve the power link efficiency by modifying the geometrical parameters of planar spiral inductors. The analysis of the inductive links includes a model for the inductors, which is more accurate for larger bandwidths. The corresponding equations for the power and voltage transfer functions in the inductive links are solved by using MATLABpsilas Symbolic Math Toolbox. These equations are verified in Agilent ADS, and the results perfectly match. Besides the analysis, a method to improve the power efficiency by changing the geometrical parameters of the spiral inductors is proposed.

Keywords

inductors; transfer functions; MATLAB symbolic math toolbox; implantable devices; inductive links; planar spiral inductors; power efficiency; power transfer functions; remote powering; voltage transfer functions; Bandwidth; Batteries; Coils; Equations; Implants; Inductors; Mathematical model; RLC circuits; Spirals; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Research in Microelectronics and Electronics, 2008. PRIME 2008. Ph.D.

Conference_Location

Istanbul

Print_ISBN

978-1-4244-1983-8

Electronic_ISBN

978-1-4244-1984-5

Type

conf

DOI

10.1109/RME.2008.4595767

Filename

4595767