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A 1.7mm2inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement
Chen, Zhiyuan1; Law, Man-Kay1; Mak, Pui-In1; Ki, Wing-Hung2; Martins, Rui P.1,3
2017-03-02
Conference Name64th IEEE International Solid-State Circuits Conference, ISSCC 2017
Source PublicationDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume60
Pages372-373
Conference Date2 5, 2017 - 2 9, 2017
Conference PlaceSan Francisco, CA, United states
Author of SourceInstitute of Electrical and Electronics Engineers Inc.
Abstract

Energy Harvesting is crucial to the development of miniaturized implants to achieve minimal invasiveness and system autonomy. While RF wireless power transfer suffers from substantial tissue attenuation, a wireless piezoelectric energy harvester (PEH) is more attractive for deep-tissue implant applications [1]. Typical PEH interfaces with a full-bridge rectifier for AC-DC conversion with limited extractable electrical power due to the PEH inherent capacitance (Cp). The parallel-synchronized-switch harvesting-on-inductor (P-SSHI) technique [2, 3] can increase the output energy by flipping the PEH voltage using resonance, whereas other techniques in [4] and [5] focus on boosting the PEH voltage swing to increase the extracted power. Yet, all of them require a bulky external high-Q inductor (up to the mH range in [3] and [5]) to ensure a high power-extraction enhancement. This work reports an inductorless fully integrated PEH interface, achieving a high voltage flipping efficiency (ηF) of 0.85 and a maximum output-power increasing rate (MOPIR) of 4.83× when compared with a full-bridge rectifier interface. © 2017 IEEE.

DOI10.1109/ISSCC.2017.7870416
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000403393800155
Fulltext Access
Citation statistics
Cited Times [WOS]:10   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.University of Macau, China;
2.Hong Kong University of Science and Technology, Hong Kong, Hong Kong;
3.Instituto Superior Tecnico, Universidade de Lisboa, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Chen, Zhiyuan,Law, Man-Kay,Mak, Pui-In,et al. A 1.7mm2inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement[C]//Institute of Electrical and Electronics Engineers Inc.,2017:372-373.
APA Chen, Zhiyuan,Law, Man-Kay,Mak, Pui-In,Ki, Wing-Hung,&Martins, Rui P..(2017).A 1.7mm2inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement.Digest of Technical Papers - IEEE International Solid-State Circuits Conference,60,372-373.
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