CIRCUIT TECHNIQUES FOR EFFECTIVE WIRELESS TRANSFER OF POWER AND DATA TO ELECTRONIC IMPLANTS

Author:

DJEMOUAI ABDELOHAHAB1,SAWAN MOHAMAD1

Affiliation:

1. Polystim Neurotechnologies Laboratory, Department of Electrical Engineering, Ecole Polytechnique de Montréal, P. O. Box 6079, Station Centre-ville, Montréal, Que, H3C 3A7, Canada

Abstract

Novel circuit techniques and design approaches are proposed in this paper to build a controller dedicated to wireless power and data transmission systems used in the area of implantable devices such as sensors and neurostimulators. The aim of this controller is to regulate automatically the level of the power to be transferred and to modulate the carrier signals during data transmission. It includes several new integrated building blocks such as integrated pulse-width modulator (PWM), RF envelope detector, frequency-locked loop (FLL), and amplitude-shift keying (ASK) modulator and demodulator. CMOS 0.18 μm technology is used to implement this controller that operates at 1.8 V power supply and a frequency of 20 MHz. Preliminary postlayout simulation results prove that all the main blocks of the controller (the FLL, the PWM, and the ASKD) operate adequately. From simulation results, the time response of the system is estimated at 0.8 μs. The complete controller has been recently submitted for fabrication.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Embedded Medical Microsystems;Design Technology for Heterogeneous Embedded Systems;2012

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