Photovoltaic Energy Harvester With Fractional Open-Circuit Voltage Based Maximum Power Point Tracking Circuit
- 21 May 2018
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems II: Express Briefs
- Vol. 66 (2) , 257-261
Abstract
A photovoltaic (PV) energy harvester is proposed, and it adopts the fractional open-circuit voltage method to track the maximal power point of PV cells. The proposed harvester was designed and fabricated by using a 0.18-μm 1P6M mixed-signal process. The input voltage of the proposed harvester may range from 0.5 to 1.1 V, and its measured peak total efficiency is 93.4%. The proposed harvester is suitable for internet-of-things applications, and the maximal duty cycle it can afford for a device with a 5-mA load and 20-ms activation time is 50%.Keywords
Funding Information
- Ministry of Science and Technology, Taiwan (MOST 105-2628-E-006-008-MY3)
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