Ultra-low-power circuit techniques for mm-size wireless sensor nodes with energy harvesting

被引:17
|
作者
Morimura, Hiroki [1 ]
Oshima, Shoichi [1 ]
Matsunaga, Kenichi [1 ]
Shimamura, Toshishige [2 ]
Harada, Mitsuru [3 ]
机构
[1] NTT Device Technol Labs, Atsugi, Kanagawa 2430198, Japan
[2] NTT Intellectual Property Ctr, Tokyo, Tokyo, Japan
[3] NTT Network Innovat Labs, Tokyo, Tokyo, Japan
来源
IEICE ELECTRONICS EXPRESS | 2014年 / 11卷 / 20期
关键词
wireless sensor node; low power; sensing circuit; power management; RF transmitter; energy harvesting; MEMS; DUST;
D O I
10.1587/elex.11.20142009
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 paper describes circuit techniques for energy-harvesting technology in millimeter-size ultra-low-power batteryless wireless sensor nodes as a front end for BigData, IoT, M2M, and ambient intelligence. Power generated by energy harvester becomes as small as the nanowatt level when the size of a sensor node becomes millimeter-size. First, technical trends in low-power circuits and the portfolio of energy harvesting and circuit technology are discussed from the viewpoints of technical and application issues. Then, circuit techniques for nanowatt level wireless sensor nodes-a zero-power vibration sensing circuit, power management with MEMS switch, and an intermitted RF transmitter-are explained.
引用
收藏
页数:12
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