Lookup NU author(s): Jeffrey Neasham,
Dr Graeme Chester,
Professor Patrick Degenaar
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© 2017 IEEE. This paper presents a design and implementation of an ultrasonic wireless energy transfer link to a visual cortical prosthesis implant device. Two ultrasonic transducers with 2 mm thickness and 12 mm diameter are implemented from scratch using Pz27 disc shape. The power transfer ultrasound link is demonstrated using 2 mm of tissue mimic in-vitro. The target voltage, required to operate the implant, of 1.8 V, 3.3 V and 5 V is achieved. The ultrasonic link and the overall system efficiencies are found to be 14.99% and 25% respectively. This system is found to be working in 36% of the FDA limit (720 mW/cm2).
Author(s): Jaafar B, Neasham J, Chester G, Degenaar P
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: IEEE Biomedical Circuits and Systems Conference (BioCAS 2017)
Year of Conference: 2018
Online publication date: 29/03/2018
Acceptance date: 02/04/2016
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