Lo Y.CShu Y.C.YI-CHUNG SHU2021-08-052021-08-0520210277786Xhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85107481319&doi=10.1117%2f12.2582657&partnerID=40&md5=a4b93c8dd3a2c2989b445b710c1484adhttps://scholars.lib.ntu.edu.tw/handle/123456789/577083The article presents the development of a self-powered rectified electromagnetic energy harvester (EMEH) under low frequency excitations. To overcome the drawback of low output voltage across the small optimal load, it is proposed to use the transistor-based rectifier biased by the self-powered SECE-based piezoelectric energy harvester (PEH). In addition, the buck-boost converter controlled by the self-powered SSHI-based PEH is implemented for the maximum power point tracking. A semi-analytic model is developed for predicting the peak power and the optimal load used for designing the buck-boost converter. The prediction is then validated by experiment showing 1.5 mW optimal output power. Further, it is found that the 0.22 low rectified voltage is increased up to 2.5 V by the proposed SSHI-based voltage boosting technique. It offers advantages of zero quiescent power dissipation and the ease of tuning the input impedance of the buck-boost converter by varying the SSHI load impedance. ? 2021 SPIE. All rights reserved.Electric current regulators; Electric rectifiers; Electromagnetic waves; Energy harvesting; Integrated control; Maximum power point trackers; Power control; Analytic modeling; Buck boost converter; Input impedance; Low output voltage; Maximum Power Point Tracking; Piezoelectric energy harvesters; Rectified voltage; Voltage boosting; DC-DC converters[SDGs]SDG7conference paper10.1117/12.25826572-s2.0-85107481319