An Energy-Efficient Fast Maximum Power Point Tracking Circuit in an 800-μW Photovoltaic Energy Harvester

被引：78

作者：

Kim, Hoonki ^{[1
]}

Kim, Sangjin ^{[2
,3
]}

Kwon, Chan-Keun ^{[1
]}

Min, Young-Jae ^{[1
]}

Kim, Chulwoo ^{[1
]}

Kim, Soo-Won ^{[1
]}

机构：

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

[2] Korea Univ, Dept Elect Engn, Seoul 137701, South Korea

[3] Samsung Elect, Div Mobile Commun, Suwon 443742, Kyunggi Do, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 06期

关键词：

Energy harvesting; maximum power point tracking (MPPT); photovoltaic (PV); solar cell; wireless sensor networks (WSNs); SYSTEM; MPPT;

D O I：

10.1109/TPEL.2012.2220983

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：

An energy-efficient maximum power point tracking (MPPT) circuit with a fast-tracking time for use with 800-mu W PV energy harvesters is presented in this paper. The proposed MPPT circuit uses a successive approximation register MPPT algorithm, which has a power down mode and a fast tracking time, to achieve low power consumption and energy savings. The prototype MPPT circuit, which consists of analog-based circuits, has been implemented and fabricated in a 0.35-mu m BCDMOS process. The MPPT core occupies an area of 3 mm(2) and consumes 4.6 mu W of power. The tracking time is reduced by 69.4% and the stored energy is increased by 31.4% as compared to the conventional hill climbing-based MPPT algorithm under indoor conditions.

引用

页码：2927 / 2935

页数：9

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