Couplers in a film-type capacitive wireless power charging (CWC) system for an implantable medical device were designed and analyzed in this work. Due to the high conductivity of the human body, two paths contribute to the power transmission, namely a high-frequency current and an electric field. This was confirmed by an equivalent circuit of the system. During analysis of the system, we used pig skin with subcutaneous fat, which has a high affinity with the human body, to search for a highly efficient electrode shape. Subsequently, we fabricated the designed coupler and measured ηmax. An ηmax of 56.6% was obtained for a half-circular coupler with a radius of 20 mm and a distance of 10 mm between adjacent couplers. This study will contribute to the realization of implantable devices that can be recharged during breaks or while sleeping at home and is expected to significantly reduce the burden on patients.
Marimo MATSUMOTO
Toyohashi University of Technology
Masaya TAMURA
Toyohashi University of Technology
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Marimo MATSUMOTO, Masaya TAMURA, "Coupler Design and Analysis of Capacitive Wireless Power Charging for Implantable Medical Devices" in IEICE TRANSACTIONS on Electronics,
vol. E105-C, no. 9, pp. 398-406, September 2022, doi: 10.1587/transele.2021ECP5058.
Abstract: Couplers in a film-type capacitive wireless power charging (CWC) system for an implantable medical device were designed and analyzed in this work. Due to the high conductivity of the human body, two paths contribute to the power transmission, namely a high-frequency current and an electric field. This was confirmed by an equivalent circuit of the system. During analysis of the system, we used pig skin with subcutaneous fat, which has a high affinity with the human body, to search for a highly efficient electrode shape. Subsequently, we fabricated the designed coupler and measured ηmax. An ηmax of 56.6% was obtained for a half-circular coupler with a radius of 20 mm and a distance of 10 mm between adjacent couplers. This study will contribute to the realization of implantable devices that can be recharged during breaks or while sleeping at home and is expected to significantly reduce the burden on patients.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2021ECP5058/_p
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@ARTICLE{e105-c_9_398,
author={Marimo MATSUMOTO, Masaya TAMURA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Coupler Design and Analysis of Capacitive Wireless Power Charging for Implantable Medical Devices},
year={2022},
volume={E105-C},
number={9},
pages={398-406},
abstract={Couplers in a film-type capacitive wireless power charging (CWC) system for an implantable medical device were designed and analyzed in this work. Due to the high conductivity of the human body, two paths contribute to the power transmission, namely a high-frequency current and an electric field. This was confirmed by an equivalent circuit of the system. During analysis of the system, we used pig skin with subcutaneous fat, which has a high affinity with the human body, to search for a highly efficient electrode shape. Subsequently, we fabricated the designed coupler and measured ηmax. An ηmax of 56.6% was obtained for a half-circular coupler with a radius of 20 mm and a distance of 10 mm between adjacent couplers. This study will contribute to the realization of implantable devices that can be recharged during breaks or while sleeping at home and is expected to significantly reduce the burden on patients.},
keywords={},
doi={10.1587/transele.2021ECP5058},
ISSN={1745-1353},
month={September},}
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TY - JOUR
TI - Coupler Design and Analysis of Capacitive Wireless Power Charging for Implantable Medical Devices
T2 - IEICE TRANSACTIONS on Electronics
SP - 398
EP - 406
AU - Marimo MATSUMOTO
AU - Masaya TAMURA
PY - 2022
DO - 10.1587/transele.2021ECP5058
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E105-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2022
AB - Couplers in a film-type capacitive wireless power charging (CWC) system for an implantable medical device were designed and analyzed in this work. Due to the high conductivity of the human body, two paths contribute to the power transmission, namely a high-frequency current and an electric field. This was confirmed by an equivalent circuit of the system. During analysis of the system, we used pig skin with subcutaneous fat, which has a high affinity with the human body, to search for a highly efficient electrode shape. Subsequently, we fabricated the designed coupler and measured ηmax. An ηmax of 56.6% was obtained for a half-circular coupler with a radius of 20 mm and a distance of 10 mm between adjacent couplers. This study will contribute to the realization of implantable devices that can be recharged during breaks or while sleeping at home and is expected to significantly reduce the burden on patients.
ER -