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22.2 A 1.7mm2inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement
Zhiyuan Chen1; Man-Kay Law1; Pui-In Mak1; Wing-Hung Ki2; Rui P. Martins1,3
2017-02
Conference Name64th IEEE International Solid-State Circuits Conference (ISSCC)
Source Publication2017 IEEE International Solid-State Circuits Conference (ISSCC)
Conference Date5-9 Feb. 2017
Conference PlaceSan Francisco, CA
CountryUSA
Other 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 . 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 can increase the output energy by flipping the PEH voltage using resonance, whereas other techniques focus on boosting the PEH voltage swing to increase the extracted power. Yet, all of them require a bulky external high-Q inductor to ensure a high power-extraction enhancement. This work reports an inductorless fully integrated PEH interface, achieving a high voltage flipping efficiency (η F ) of 0.85 and a maximum output-power increasing rate (MOPIR) of 4.83× when compared with a full-bridge rectifier interface.

DOI10.1109/ISSCC.2017.7870416
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000403393800155
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Cited Times [WOS]:10   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionFaculty of Science and Technology
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.University of Macau, China
2.Hong Kong University of Science and Technology, China
3.Instituto Superior Tecnico, Universidade de Lisboa, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Zhiyuan Chen,Man-Kay Law,Pui-In Mak,et al. 22.2 A 1.7mm2inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement[C],2017.
APA Zhiyuan Chen,Man-Kay Law,Pui-In Mak,Wing-Hung Ki,&Rui P. Martins.(2017).22.2 A 1.7mm2inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement.2017 IEEE International Solid-State Circuits Conference (ISSCC).
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