Multi-megahertz IPT systems for biomedical devices applications
File(s)
Accepted version
Author(s)
Pucci, Nunzio
Kwan, Christopher H
Yates, David C
Mitcheson, Paul D
Type
Conference Paper
Abstract
This paper investigates the main design constraints for the optimisation of an inductive power transfer (IPT) link for recharging implantable medical devices [1], and presents the potential advantages of operating in the multi-MHz range for such applications. The design proposed in this paper offers a fast charging solution, allowing patients to recharge their active medical implants every 4-5 years for 40% of its battery capability. The main challenge consists of obtaining good coupling and effective Q factor of the receiver coil, while minimizing the overall increase in size of the medical implant. Analysis obtained through electromagnetic simulations with CST Studio Suite for a 13.56 MHz, 1 W system suggests that it is possible to achieve a relatively high theoretical link efficiency of 66%, while keeping surface temperature increases and specific absorption rate (SAR) within the limits established in EN 45502 [2] and ICNIRP 1998 [3]. The experimental results show two feasible systems with different separation distances between the device's metallic case and the receiver coil, achieving transfer efficiencies [11] of 41% and 53% for separations of 1 mm and 7 mm, respectively.
Date Issued
2020-04-30
Date Acceptance
2020-04-01
Citation
2019 19TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS), 2020, pp.1-7
Publisher
IEEE
Start Page
1
End Page
7
Journal / Book Title
2019 19TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS)
Copyright Statement
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Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000576757900017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Source
19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (Power MEMS)
Subjects
Science & Technology
Technology
Energy & Fuels
Engineering, Electrical & Electronic
Nanoscience & Nanotechnology
Engineering
Science & Technology - Other Topics
Publication Status
Published
Start Date
2019-12-02
Finish Date
2019-12-06
Coverage Spatial
Krakow, POLAND
Date Publish Online
2020-04-30