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Electrical Engineering Department

Title EFFICIENT DATA AND POWER TRANSFER FOR BIO-IMPLANTED DEVICES BASED ON ASK MODULATION TECHNIQUES
Authors Saad Mutashar Abbas, Mahammad A. Hannan, Salina A. Samad and Aini Hussain
Journal Name Journal of Mechanics in Medicine and Biology
Volume 12

Issue 5
Pages 1-17
Publisher Singapore
Year 2012
Impact Factor 0.8
Abstract

This paper presents a fully integrated system for implanted micro-system devices with efficient power and data transfer based on amplitude shift keying (ASK) modulation techniques. A proposed efficient class-E power amplifier is presented. The design presents a full transcutaneous inductive powering system to transfer power and data from an outside human body to implanted devices such as implanted micro-systems to stimulate and monitor the nerves and muscles with low band frequency of 13.56MHz according to the industrial_scientific_medical (ISM) band to avoid the tissue damage. A novel ASK demodulator powered with 1.9V is proposed with a power recovery system. The modulation index is 13% and the modulation rate7.3% with data rate 1 Mbit/s, and with power efficiency 66%. The system has been designed using 0.35-_m fabricated CMOS technology. The mathematical model is given and the design is simulated using OrCAD PSpice 16.2 software tool and for real-time simulation, the electronic workbench MULISIM 11 has been used to simulate the class-E power amplifier.