A Highly Efficient Fully Integrated Active Rectifier for Ultrasonic Wireless Power Transfer

Xinling Yue; Zhelun  Chen; Yiwei  Zou; Sijun Du

doi:10.1109/ISCAS48785.2022.9937532

A Highly Efficient Fully Integrated Active Rectifier for Ultrasonic Wireless Power Transfer

Xinling Yue, Zhelun Chen, Yiwei Zou, Sijun Du^*

^*Corresponding author for this work

Electronic Instrumentation

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

Ultrasonic wireless power transfer (WPT) has been proved to be a promising approach to power biomedical implants. To extract the energy generated from the transducer, a rectifier is typically required. Previous inductor-based rectifiers (SSHI and SECE) require a large off-chip inductor to achieve good performance, which is not desired for miniaturization and safety reasons. Synchronized switch harvesting on capacitors (SSHC) rectifiers have been proved to achieve high performance without inductors; however, they are mainly designed for low-frequency kinetic energy harvesting. In this paper, an improved SSHC rectifier is designed to achieve a fully integrated design with all flying capacitors implemented on-chip. The proposed SSHC rectifier can properly operate at ultrasonic excitation frequency (100 KHz) with precise switching time control and ultrafast voltage flipping techniques. In addition, an on-chip ultralow-power LDO allows the system to be self-sustained. The system is designed in a TSMC 180nm BCD technology and post-layout simulation results are presented.

Original language	English
Title of host publication	Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS)
Place of Publication	Danvers
Publisher	IEEE
Pages	531-535
Number of pages	5
ISBN (Electronic)	978-1-6654-8485-5
ISBN (Print)	978-1-6654-8486-2
DOIs	https://doi.org/10.1109/ISCAS48785.2022.9937532
Publication status	Published - 2022
Event	2022 IEEE International Symposium on Circuits and Systems (ISCAS) - Austin, United States Duration: 27 May 2022 → 1 Jun 2022

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2022-May
ISSN (Print)	0271-4310

Conference

Conference	2022 IEEE International Symposium on Circuits and Systems (ISCAS)
Country/Territory	United States
City	Austin
Period	27/05/22 → 1/06/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Biomedical application
energy harvesting
fully integrated
integrated circuit
SSHC rectifier
ultrasonic transducer

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A_Highly_Efficient_Fully_Integrated_Active_Rectifier_for_Ultrasonic_Wireless_Power_TransferFinal published version, 1.35 MB

Cite this

Yue, X., Chen, Z., Zou, Y., & Du, S. (2022). A Highly Efficient Fully Integrated Active Rectifier for Ultrasonic Wireless Power Transfer. In Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS) (pp. 531-535). (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2022-May). IEEE. https://doi.org/10.1109/ISCAS48785.2022.9937532

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abstract = "Ultrasonic wireless power transfer (WPT) has been proved to be a promising approach to power biomedical implants. To extract the energy generated from the transducer, a rectifier is typically required. Previous inductor-based rectifiers (SSHI and SECE) require a large off-chip inductor to achieve good performance, which is not desired for miniaturization and safety reasons. Synchronized switch harvesting on capacitors (SSHC) rectifiers have been proved to achieve high performance without inductors; however, they are mainly designed for low-frequency kinetic energy harvesting. In this paper, an improved SSHC rectifier is designed to achieve a fully integrated design with all flying capacitors implemented on-chip. The proposed SSHC rectifier can properly operate at ultrasonic excitation frequency (100 KHz) with precise switching time control and ultrafast voltage flipping techniques. In addition, an on-chip ultralow-power LDO allows the system to be self-sustained. The system is designed in a TSMC 180nm BCD technology and post-layout simulation results are presented.",

keywords = "Biomedical application, energy harvesting, fully integrated, integrated circuit, SSHC rectifier, ultrasonic transducer",

author = "Xinling Yue and Zhelun Chen and Yiwei Zou and Sijun Du",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 2022 IEEE International Symposium on Circuits and Systems (ISCAS) ; Conference date: 27-05-2022 Through 01-06-2022",

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Yue, X, Chen, Z, Zou, Y & Du, S 2022, A Highly Efficient Fully Integrated Active Rectifier for Ultrasonic Wireless Power Transfer. in Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS). Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2022-May, IEEE, Danvers, pp. 531-535, 2022 IEEE International Symposium on Circuits and Systems (ISCAS), Austin, United States, 27/05/22. https://doi.org/10.1109/ISCAS48785.2022.9937532

A Highly Efficient Fully Integrated Active Rectifier for Ultrasonic Wireless Power Transfer. / Yue, Xinling; Chen, Zhelun ; Zou, Yiwei et al.
Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS). Danvers: IEEE, 2022. p. 531-535 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2022-May).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

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N2 - Ultrasonic wireless power transfer (WPT) has been proved to be a promising approach to power biomedical implants. To extract the energy generated from the transducer, a rectifier is typically required. Previous inductor-based rectifiers (SSHI and SECE) require a large off-chip inductor to achieve good performance, which is not desired for miniaturization and safety reasons. Synchronized switch harvesting on capacitors (SSHC) rectifiers have been proved to achieve high performance without inductors; however, they are mainly designed for low-frequency kinetic energy harvesting. In this paper, an improved SSHC rectifier is designed to achieve a fully integrated design with all flying capacitors implemented on-chip. The proposed SSHC rectifier can properly operate at ultrasonic excitation frequency (100 KHz) with precise switching time control and ultrafast voltage flipping techniques. In addition, an on-chip ultralow-power LDO allows the system to be self-sustained. The system is designed in a TSMC 180nm BCD technology and post-layout simulation results are presented.

AB - Ultrasonic wireless power transfer (WPT) has been proved to be a promising approach to power biomedical implants. To extract the energy generated from the transducer, a rectifier is typically required. Previous inductor-based rectifiers (SSHI and SECE) require a large off-chip inductor to achieve good performance, which is not desired for miniaturization and safety reasons. Synchronized switch harvesting on capacitors (SSHC) rectifiers have been proved to achieve high performance without inductors; however, they are mainly designed for low-frequency kinetic energy harvesting. In this paper, an improved SSHC rectifier is designed to achieve a fully integrated design with all flying capacitors implemented on-chip. The proposed SSHC rectifier can properly operate at ultrasonic excitation frequency (100 KHz) with precise switching time control and ultrafast voltage flipping techniques. In addition, an on-chip ultralow-power LDO allows the system to be self-sustained. The system is designed in a TSMC 180nm BCD technology and post-layout simulation results are presented.

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T3 - Proceedings - IEEE International Symposium on Circuits and Systems

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BT - Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS)

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A Highly Efficient Fully Integrated Active Rectifier for Ultrasonic Wireless Power Transfer

Abstract

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Keywords

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