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Authors: Thushari Dissanayake 1 ; David Budgett 1 and Aiguo Patrick Hu 2

Affiliations: 1 Bioengineering Institute, University of Auckland, New Zealand ; 2 University of Auckland, New Zealand

Keyword(s): TET, inductive power transfer, power efficiency, coupling coefficient, mutual inductance.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Instruments and Devices ; Implantable Electronics ; Power Sources ; Wireless Systems

Abstract: This paper presents a comparative study of methods to determine the coupling coefficient between primary and secondary coils used in a transcutaneous energy transfer system designed for powering implantable biomedical devices. A coupling analysis covering typical misalignments between coils is presented using an analytical model, a simulated model and practical experimental measurements. The simulated model shows good agreement with the experimental measurements. The performance of the system is characterised by carrying out a loss analysis to compute the power efficiency of the system for different misalignment situations. It was established that variable coupling affects the maximum power transfer capacity but has a low impact on the power efficiency for coil separations of less than 30mm.

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Paper citation in several formats:
Dissanayake, T.; Budgett, D. and Patrick Hu, A. (2008). MAGNETIC COUPLING ANALYSIS OF A TET POWER DELIVERY SYSTEM. In Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 2: BIODEVICES; ISBN 978-989-8111- 17-3; ISSN 2184-4305, SciTePress, pages 170-175. DOI: 10.5220/0001051101700175

@conference{biodevices08,
author={Thushari Dissanayake. and David Budgett. and Aiguo {Patrick Hu}.},
title={MAGNETIC COUPLING ANALYSIS OF A TET POWER DELIVERY SYSTEM},
booktitle={Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 2: BIODEVICES},
year={2008},
pages={170-175},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001051101700175},
isbn={978-989-8111- 17-3},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 2: BIODEVICES
TI - MAGNETIC COUPLING ANALYSIS OF A TET POWER DELIVERY SYSTEM
SN - 978-989-8111- 17-3
IS - 2184-4305
AU - Dissanayake, T.
AU - Budgett, D.
AU - Patrick Hu, A.
PY - 2008
SP - 170
EP - 175
DO - 10.5220/0001051101700175
PB - SciTePress

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