Closed loop wireless power transmission for implantable medical devices

Luis Andia; Rui Feng Xue; Kuang-Wei Cheng; Minkyu Je

doi:10.1109/ISICir.2011.6131982

Closed loop wireless power transmission for implantable medical devices

Luis Andia, Rui Feng Xue, Kuang-Wei Cheng, Minkyu Je

Department of Electrical Engineering

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

9 Citations (Scopus)

Abstract

This paper describes a closed loop wireless inductive power transfer system for an implantable brain machine interface. The proposed system is designed to ensure optimal power transfer by an off-body unit, battery powered, to an in-body implanted unit while guarantying a minimum transmitted power level for proper operation and a maximum level to avoid brain tissue damage due to implanted electronics overheating. The closed loop ensures a minimum power of 20mW delivered to the implanted unit with a power amplifier measured power added efficiency of 69%. As part of the closed loop a microcontroller interprets a backscattered pulse train signal modulating a PWM signal duty cycle in order to control power amplifier drain bias voltage by using a PWM controlled DC/DC converter.

Original language	English
Title of host publication	2011 International Symposium on Integrated Circuits, ISIC 2011
Pages	404-407
Number of pages	4
DOIs	https://doi.org/10.1109/ISICir.2011.6131982
Publication status	Published - 2011 Dec 1
Event	2011 International Symposium on Integrated Circuits, ISIC 2011 - SingaporeSingapore, Singapore Duration: 2011 Dec 12 → 2011 Dec 14

Publication series

Name	2011 International Symposium on Integrated Circuits, ISIC 2011

Other

Other	2011 International Symposium on Integrated Circuits, ISIC 2011
Country/Territory	Singapore
City	SingaporeSingapore
Period	11-12-12 → 11-12-14

All Science Journal Classification (ASJC) codes

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/ISICir.2011.6131982

Cite this

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title = "Closed loop wireless power transmission for implantable medical devices",

abstract = "This paper describes a closed loop wireless inductive power transfer system for an implantable brain machine interface. The proposed system is designed to ensure optimal power transfer by an off-body unit, battery powered, to an in-body implanted unit while guarantying a minimum transmitted power level for proper operation and a maximum level to avoid brain tissue damage due to implanted electronics overheating. The closed loop ensures a minimum power of 20mW delivered to the implanted unit with a power amplifier measured power added efficiency of 69%. As part of the closed loop a microcontroller interprets a backscattered pulse train signal modulating a PWM signal duty cycle in order to control power amplifier drain bias voltage by using a PWM controlled DC/DC converter.",

author = "Luis Andia and Xue, {Rui Feng} and Kuang-Wei Cheng and Minkyu Je",

year = "2011",

month = dec,

day = "1",

doi = "10.1109/ISICir.2011.6131982",

language = "English",

isbn = "9781612848648",

series = "2011 International Symposium on Integrated Circuits, ISIC 2011",

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booktitle = "2011 International Symposium on Integrated Circuits, ISIC 2011",

note = "2011 International Symposium on Integrated Circuits, ISIC 2011 ; Conference date: 12-12-2011 Through 14-12-2011",

}

Andia, L, Xue, RF, Cheng, K-W & Je, M 2011, Closed loop wireless power transmission for implantable medical devices. in 2011 International Symposium on Integrated Circuits, ISIC 2011., 6131982, 2011 International Symposium on Integrated Circuits, ISIC 2011, pp. 404-407, 2011 International Symposium on Integrated Circuits, ISIC 2011, SingaporeSingapore, Singapore, 11-12-12. https://doi.org/10.1109/ISICir.2011.6131982

Closed loop wireless power transmission for implantable medical devices. / Andia, Luis; Xue, Rui Feng; Cheng, Kuang-Wei et al.
2011 International Symposium on Integrated Circuits, ISIC 2011. 2011. p. 404-407 6131982 (2011 International Symposium on Integrated Circuits, ISIC 2011).

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

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N2 - This paper describes a closed loop wireless inductive power transfer system for an implantable brain machine interface. The proposed system is designed to ensure optimal power transfer by an off-body unit, battery powered, to an in-body implanted unit while guarantying a minimum transmitted power level for proper operation and a maximum level to avoid brain tissue damage due to implanted electronics overheating. The closed loop ensures a minimum power of 20mW delivered to the implanted unit with a power amplifier measured power added efficiency of 69%. As part of the closed loop a microcontroller interprets a backscattered pulse train signal modulating a PWM signal duty cycle in order to control power amplifier drain bias voltage by using a PWM controlled DC/DC converter.

AB - This paper describes a closed loop wireless inductive power transfer system for an implantable brain machine interface. The proposed system is designed to ensure optimal power transfer by an off-body unit, battery powered, to an in-body implanted unit while guarantying a minimum transmitted power level for proper operation and a maximum level to avoid brain tissue damage due to implanted electronics overheating. The closed loop ensures a minimum power of 20mW delivered to the implanted unit with a power amplifier measured power added efficiency of 69%. As part of the closed loop a microcontroller interprets a backscattered pulse train signal modulating a PWM signal duty cycle in order to control power amplifier drain bias voltage by using a PWM controlled DC/DC converter.

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BT - 2011 International Symposium on Integrated Circuits, ISIC 2011

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Closed loop wireless power transmission for implantable medical devices

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