A 1-mW Solar-Energy-Harvesting Circuit Using an Adaptive MPPT With a SAR and a Counter

被引：41

作者：

Kim, Hoonki ^{[1
]}

Min, Young-Jae ^{[2
]}

Jeong, Chan-Hui ^{[1
]}

Kim, Kyu-Young ^{[3
]}

Kim, Chulwoo ^{[1
]}

Kim, Soo-Won ^{[1
]}

机构：

[1] Korea Univ, Dept Elect Engn, Seoul 136713, South Korea

[2] Samsung Elect, Memory Div, Hwasung 445701, South Korea

[3] SK Hynix Inc, DRAM Dev Div, Inchon 467701, South Korea

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2013年 / 60卷 / 06期

关键词：

Energy harvesting; maximum power point tracking (MPPT); solar cell; wireless sensor network (WSN);

D O I：

10.1109/TCSII.2013.2258262

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：

This brief presents an energy-harvesting system that uses an adaptive maximum power point tracking (MPPT) circuit for 1-mW solar-powered wireless sensor networks. The proposed MPPT circuit exploits a successive approximation register and a counter to solve the tradeoff problem between a fast transient response and a small steady-state oscillation with low-power consumption. The proposed energy-harvesting circuit is fabricated using a 0.35-mu m CMOS process. The MPPT circuit reduces the transient response time by 76.6%, dissipates only 110 mu W, and shows MPPT efficiency of 99.6%.

引用

页码：331 / 335

页数：5

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