https://scholars.lib.ntu.edu.tw/handle/123456789/581131
標題: | An Indoor Photovoltaic Energy Harvester Using Time-Based MPPT and On-Chip Photovoltaic Cell | 作者: | Chang M.-C Liu S.-I. SHEN-IUAN LIU |
關鍵字: | DC-DC converter energy harvester; maximum power point tracking; Photovoltaic; power conversion efficiency; switched-capacitor; time-based | 公開日期: | 2020 | 卷: | 67 | 期: | 11 | 起(迄)頁: | 2432-2436 | 來源出版物: | IEEE Transactions on Circuits and Systems II: Express Briefs | 摘要: | An indoor photovoltaic (PV) energy harvester using a time-based maximum power point tracking (TBMPPT) circuit and an on-chip PV cell is presented. The TBMPPT circuit selects one of three switched-capacitor DC-DC converters and adjusts the switching frequency to achieve the maximum power. This TBMPPT circuit can also track the light intensity variations. When the TBMPPT circuit is locked, a duty-cycle control technique is used to lower the power. This indoor PV energy harvester is realized in a 0.18 CMOS process. Its total active area is 2.89mm2 wherein the area of the PV cell is 1.436mm2. The measured peak power conversion efficiency (PCE) is 68.3%. This energy harvester can cover the wide input power range of 5 {W} - 500 {W} and maintain the PCE>50% over the input power range of 10 {W} - 500 {W}. ? 2004-2012 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081381895&doi=10.1109%2fTCSII.2020.2976760&partnerID=40&md5=a57d386d3d3e53f48d034a67c02e7e14 https://scholars.lib.ntu.edu.tw/handle/123456789/581131 |
ISSN: | 15497747 | DOI: | 10.1109/TCSII.2020.2976760 | SDG/關鍵字: | Capacitors; Clocks; DC-DC converters; Electric impedance; Energy harvesting; Maximum power point trackers; Photoelectrochemical cells; Photovoltaic cells; Switches; Duty cycle control; Energy Harvester; Light intensity; Maximum power; Maximum Power Point Tracking; Photovoltaic energy; Photovoltaic systems; Switched-capacitor dc-dc converter; Switching frequency |
顯示於: | 電機工程學系 |
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