Integrated chip power receiver for wireless bio-implantable devices

Vijith Vijayakumaran Nair; Jun Rim Choi

doi:10.1007/978-3-319-27707-3_3

Integrated chip power receiver for wireless bio-implantable devices

Vijith Vijayakumaran Nair, Jun Rim Choi

School of Electronics Engineering

Kyungpook National University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Wireless bio-medical devices employ inductive link as medium for transfer of energy between the external source and the implant. But, the inductive power picked by receiver results in high voltage, that may largely exceed the voltage compliance of low voltage integrated chips. The high voltage at the receiver is due to high load impedance offered by electrodes within the implant. To limit the magnitude of induced voltage, majority of the low voltage circuits use power inefficient methods like voltage clippers and shunt regulators. There- fore, to overcome voltage limitation and to enhance power efficiency, a power receiver topology based on step-down approach is designed and implemented for input voltage as high as 30 V. The implemented design consists of rectifier and series voltage regulator. In addition a battery charger circuit that ensures safe and reliable charging of the implant battery is designed and tested. The proposed design is fabricated in 0.35 μm high voltage BCD foundry. Rectifier and regulator power efficacy are analyzed based on simulation and measurement results.

Original language	English
Title of host publication	Biomedical Engineering Systems and Technologies - 8th International Joint Conference, BIOSTEC 2015, Revised Selected Papers
Editors	Dirk Elias, Ana Fred, Hugo Gamboa
Publisher	Springer Verlag
Pages	33-48
Number of pages	16
ISBN (Print)	9783319277066
DOIs	https://doi.org/10.1007/978-3-319-27707-3_3
State	Published - 2015
Event	8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015 - Lisbon, Portugal Duration: 12 Jan 2015 → 15 Jan 2015

Publication series

Name	Communications in Computer and Information Science
Volume	574
ISSN (Print)	1865-0929

Conference

Conference	8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015
Country/Territory	Portugal
City	Lisbon
Period	12/01/15 → 15/01/15

Keywords

Bio-medical implant
Charger circuit
High voltage IC
Power efficiency
Power receiver
Rectifier
Series voltage regulator

Access to Document

10.1007/978-3-319-27707-3_3

Cite this

Nair, V. V., & Choi, J. R. (2015). Integrated chip power receiver for wireless bio-implantable devices. In D. Elias, A. Fred, & H. Gamboa (Eds.), Biomedical Engineering Systems and Technologies - 8th International Joint Conference, BIOSTEC 2015, Revised Selected Papers (pp. 33-48). (Communications in Computer and Information Science; Vol. 574). Springer Verlag. https://doi.org/10.1007/978-3-319-27707-3_3

Nair, Vijith Vijayakumaran ; Choi, Jun Rim. / Integrated chip power receiver for wireless bio-implantable devices. Biomedical Engineering Systems and Technologies - 8th International Joint Conference, BIOSTEC 2015, Revised Selected Papers. editor / Dirk Elias ; Ana Fred ; Hugo Gamboa. Springer Verlag, 2015. pp. 33-48 (Communications in Computer and Information Science).

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title = "Integrated chip power receiver for wireless bio-implantable devices",

abstract = "Wireless bio-medical devices employ inductive link as medium for transfer of energy between the external source and the implant. But, the inductive power picked by receiver results in high voltage, that may largely exceed the voltage compliance of low voltage integrated chips. The high voltage at the receiver is due to high load impedance offered by electrodes within the implant. To limit the magnitude of induced voltage, majority of the low voltage circuits use power inefficient methods like voltage clippers and shunt regulators. There- fore, to overcome voltage limitation and to enhance power efficiency, a power receiver topology based on step-down approach is designed and implemented for input voltage as high as 30 V. The implemented design consists of rectifier and series voltage regulator. In addition a battery charger circuit that ensures safe and reliable charging of the implant battery is designed and tested. The proposed design is fabricated in 0.35 μm high voltage BCD foundry. Rectifier and regulator power efficacy are analyzed based on simulation and measurement results.",

keywords = "Bio-medical implant, Charger circuit, High voltage IC, Power efficiency, Power receiver, Rectifier, Series voltage regulator",

author = "Nair, {Vijith Vijayakumaran} and Choi, {Jun Rim}",

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Nair, VV & Choi, JR 2015, Integrated chip power receiver for wireless bio-implantable devices. in D Elias, A Fred & H Gamboa (eds), Biomedical Engineering Systems and Technologies - 8th International Joint Conference, BIOSTEC 2015, Revised Selected Papers. Communications in Computer and Information Science, vol. 574, Springer Verlag, pp. 33-48, 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015, Lisbon, Portugal, 12/01/15. https://doi.org/10.1007/978-3-319-27707-3_3

Integrated chip power receiver for wireless bio-implantable devices. / Nair, Vijith Vijayakumaran; Choi, Jun Rim.
Biomedical Engineering Systems and Technologies - 8th International Joint Conference, BIOSTEC 2015, Revised Selected Papers. ed. / Dirk Elias; Ana Fred; Hugo Gamboa. Springer Verlag, 2015. p. 33-48 (Communications in Computer and Information Science; Vol. 574).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Integrated chip power receiver for wireless bio-implantable devices

AU - Nair, Vijith Vijayakumaran

AU - Choi, Jun Rim

N1 - Publisher Copyright: © Springer International Publishing Switzerland 2015.

PY - 2015

Y1 - 2015

N2 - Wireless bio-medical devices employ inductive link as medium for transfer of energy between the external source and the implant. But, the inductive power picked by receiver results in high voltage, that may largely exceed the voltage compliance of low voltage integrated chips. The high voltage at the receiver is due to high load impedance offered by electrodes within the implant. To limit the magnitude of induced voltage, majority of the low voltage circuits use power inefficient methods like voltage clippers and shunt regulators. There- fore, to overcome voltage limitation and to enhance power efficiency, a power receiver topology based on step-down approach is designed and implemented for input voltage as high as 30 V. The implemented design consists of rectifier and series voltage regulator. In addition a battery charger circuit that ensures safe and reliable charging of the implant battery is designed and tested. The proposed design is fabricated in 0.35 μm high voltage BCD foundry. Rectifier and regulator power efficacy are analyzed based on simulation and measurement results.

AB - Wireless bio-medical devices employ inductive link as medium for transfer of energy between the external source and the implant. But, the inductive power picked by receiver results in high voltage, that may largely exceed the voltage compliance of low voltage integrated chips. The high voltage at the receiver is due to high load impedance offered by electrodes within the implant. To limit the magnitude of induced voltage, majority of the low voltage circuits use power inefficient methods like voltage clippers and shunt regulators. There- fore, to overcome voltage limitation and to enhance power efficiency, a power receiver topology based on step-down approach is designed and implemented for input voltage as high as 30 V. The implemented design consists of rectifier and series voltage regulator. In addition a battery charger circuit that ensures safe and reliable charging of the implant battery is designed and tested. The proposed design is fabricated in 0.35 μm high voltage BCD foundry. Rectifier and regulator power efficacy are analyzed based on simulation and measurement results.

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KW - Charger circuit

KW - High voltage IC

KW - Power efficiency

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KW - Rectifier

KW - Series voltage regulator

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PB - Springer Verlag

T2 - 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015

Y2 - 12 January 2015 through 15 January 2015

ER -

Nair VV, Choi JR. Integrated chip power receiver for wireless bio-implantable devices. In Elias D, Fred A, Gamboa H, editors, Biomedical Engineering Systems and Technologies - 8th International Joint Conference, BIOSTEC 2015, Revised Selected Papers. Springer Verlag. 2015. p. 33-48. (Communications in Computer and Information Science). doi: 10.1007/978-3-319-27707-3_3

Integrated chip power receiver for wireless bio-implantable devices

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Keywords

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