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Article

A Bootstrapped Comparator-Switched Active Rectifying Circuit for Wirelessly Powered Integrated Miniaturized Energy Sensing Systems

1
Department of Electrical Engineering, School of Electrical and Computer Engineering, College of Engineering, Chang Gung University, Taoyuan 33302, Taiwan
2
Green Technology Research Center, Portable Energy System Group, College of Engineering, Chang Gung University, Taoyuan 33302, Taiwan
3
Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33304, Taiwan
4
Department of Electrical Engineering, National Central University, Taoyuan 32001, Taiwan
*
Author to whom correspondence should be addressed.
Received: 9 September 2019 / Revised: 26 October 2019 / Accepted: 27 October 2019 / Published: 30 October 2019
(This article belongs to the Special Issue Energy Harvester Sensing)
Human life expectancy has gradually increased in part through rapid advances in technology, including the development and use of wearable and implantable biomedical electronic devices and sensing monitors. A new architecture is proposed in this paper to replace the traditional diode circuit implementation in wireless power supply systems applied to the above-mentioned devices and monitors. By achieving near-ideal power transistor switching and leveraging the characteristics of conventional diodes to prevent reverse current, the proposed approach greatly improves the performance of the energy harvester in power conversion. The MOS harvester used in the uninterrupted permanent wireless near-field power supply described here for use in biomedical systems was designed and verified using the Taiwan Semiconductor Manufacturing Company (TSMC) standard 180-nm process, achieving performance results of Voltage conversion efficiency (VCE) = 73.55–95.12% and Power conversion efficiency (PCE) = 80.36–90.08% with the output load (0.1–1 kΩ) under 3.3 V ac input with an overall area of 1.189 mm2. These results are expected to create an important technical niche for new “green-energy” miniaturized energy sensing systems including cutting edge wirelessly powered biomedical electronics applications. View Full-Text
Keywords: energy harvesting; rectifying circuit; wireless sensing systems; implantable biomedical devices; AC-DC power converters; integrated circuits; RFID tags energy harvesting; rectifying circuit; wireless sensing systems; implantable biomedical devices; AC-DC power converters; integrated circuits; RFID tags
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MDPI and ACS Style

Gong, C.-S.A.; Li, S.-W.; Shiue, M.-T. A Bootstrapped Comparator-Switched Active Rectifying Circuit for Wirelessly Powered Integrated Miniaturized Energy Sensing Systems. Sensors 2019, 19, 4714. https://0-doi-org.brum.beds.ac.uk/10.3390/s19214714

AMA Style

Gong C-SA, Li S-W, Shiue M-T. A Bootstrapped Comparator-Switched Active Rectifying Circuit for Wirelessly Powered Integrated Miniaturized Energy Sensing Systems. Sensors. 2019; 19(21):4714. https://0-doi-org.brum.beds.ac.uk/10.3390/s19214714

Chicago/Turabian Style

Gong, Cihun-Siyong A., Shiang-Wei Li, and Muh-Tian Shiue. 2019. "A Bootstrapped Comparator-Switched Active Rectifying Circuit for Wirelessly Powered Integrated Miniaturized Energy Sensing Systems" Sensors 19, no. 21: 4714. https://0-doi-org.brum.beds.ac.uk/10.3390/s19214714

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