Photovoltaic Energy Harvester With Fractional Open-Circuit Voltage Based Maximum Power Point Tracking Circuit

被引：51

作者：

Hsu, Tsung-Wei ^{[1
]}

Wu, Hung-Hsien ^{[1
]}

Tsai, Dian-Lin ^{[1
]}

Wei, Chia-Ling ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2019年 / 66卷 / 02期

关键词：

Photovoltaic; energy harvesting; maximum power point tracking; boost converter;

D O I：

10.1109/TCSII.2018.2838672

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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-mu m 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%.

引用

页码：257 / 261

页数：5

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