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  4. Inductive Power Link for a Wireless Cortical Implant With Two-Body Packaging
 
research article

Inductive Power Link for a Wireless Cortical Implant With Two-Body Packaging

Silay, Kanber Mithat  
•
Dehollain, Catherine  
•
Declercq, Michel  
2011
Ieee Sensors Journal

This paper presents an inductive power link for remote powering of a wireless cortical implant. The link includes a Class-E power amplifier, a gate driver, an inductive link, and an integrated rectifier. The coils of the inductive link are designed and optimized for remote powering from a distance of 10 mm (scalp thickness). The power amplifier is designed in order to allow closed-loop control of the power delivered to the implant, by controlling the supply voltage. Moreover, a gate driver is added to the system to drive the power amplifier and to characterize the gate losses. A new packaging topology is proposed in order to position the implant inside a hole in the cranial bone, without occupying a large area, but still obtaining a short distance between the remote powering coils. The package is fabricated by using biocompatible materials such as PDMS and Parylene-C. The power efficiency of the remote powering link is characterized for a wide range of load power (1-20 mW) delivered from the rectifier and is measured to be 24.6% at nominal load of 10 mW.

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Type
research article
DOI
10.1109/JSEN.2011.2170676
Web of Science ID

WOS:000304163100001

Author(s)
Silay, Kanber Mithat  
Dehollain, Catherine  
Declercq, Michel  
Date Issued

2011

Publisher

Institute of Electrical and Electronics Engineers

Published in
Ieee Sensors Journal
Volume

11

Start page

2825

End page

2833

Subjects

Implant packaging

•

inductive power transmission

•

rectifiers

•

remote powering

•

wireless cortical implant

•

Devices

•

Parylene

•

Design

•

System

•

Cmos

•

Optimization

•

Telemetry

•

Glucose

•

Coils

Editorial or Peer reviewed

REVIEWED

Written at

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Available on Infoscience
June 25, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/82078
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