A 1.7mm2 Inductor-less Fully-Integrated Flipping-Capacitor Rectifier (FCR) for Piezoelectric Energy Harvesting with 483% Power Extraction Enhancement

UM > Institute of Chinese Medical Sciences

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	A 1.7mm2 Inductor-less Fully-Integrated Flipping-Capacitor Rectifier (FCR) for Piezoelectric Energy Harvesting with 483% Power Extraction Enhancement
	Chen, Z.; Law, M. K.; Mak, P. I.; Ki, W. H.; Martins, R. P.
	2017-03-01
Source Publication	IEEE International Solid-State Circuit Conference (ISSCC)
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 (ηF) of 0.85 and a maximum output-power increasing rate (MOPIR) of 4.83× when compared with a full-bridge rectifier interface.
Keyword	Piezoelectric energy harvesting flipping-capacitor rectifier fully integrated inductorless
URL	View the original
Language	英語English
The Source to Article	PB_Publication
PUB ID	27168
Document Type	Conference paper
Collection	Institute of Chinese Medical Sciences
Corresponding Author	Law, M. K.
Recommended Citation GB/T 7714	Chen, Z.,Law, M. K.,Mak, P. I.,et al. A 1.7mm2 Inductor-less Fully-Integrated Flipping-Capacitor Rectifier (FCR) for Piezoelectric Energy Harvesting with 483% Power Extraction Enhancement[C], 2017.
APA	Chen, Z.., Law, M. K.., Mak, P. I.., Ki, W. H.., & Martins, R. P. (2017). A 1.7mm2 Inductor-less Fully-Integrated Flipping-Capacitor Rectifier (FCR) for Piezoelectric Energy Harvesting with 483% Power Extraction Enhancement. IEEE International Solid-State Circuit Conference (ISSCC).

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