Combined power extraction with adaptive power management module for increased piezoelectric energy harvesting to power wireless sensor nodes
Combined power extraction with adaptive power management module for increased piezoelectric energy harvesting to power wireless sensor nodes
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DOI：
10.1109/icsens.2016.7808555
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发表时间：
2016-10
期刊：
影响因子：
--
通讯作者：
Z. Chew;M. Zhu
中科院分区：
文献类型：
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作者：
Z. Chew;M. Zhu
本文首次提出了一种将功率提取与自适应全模拟功率管理模块(PMM)相结合来提高压电能量采集的方法。PMM能够适应受压电应变能量采集器(SEH)影响的振动幅度和频率的变化，并适应不同连接的电气负载，用于为无线传感器节点(WSN)供电。组合的功率提取电路和自适应PMM允许从SEH获得高达156%的功率。该组合电路在10赫兹、2 0 0με的峰峰值应变负载下的输出功率为0.5 5 mW。这一功能在低频和低振动幅度条件下尤其重要，因为它极大地提高了SEH产生的功率。
This paper, for the first time, presents a combined power extraction with adaptive full analogue power management module (PMM) for increased piezoelectric energy harvesting. The PMM is adaptive to variations in the amplitude and frequency of vibration subjected to the piezoelectric strain energy harvester (SEH) and adaptive to different connected electrical loads, where it is used to power up a wireless sensor node (WSN). The combined power extraction circuit and adaptive PMM allow up to 156 % more power to be harvested from the SEH. The combined circuit harvested 0.55 mW at peak-to-peak strain loading of 200 με at 10 Hz. This feature is especially crucial under low frequency and low vibration amplitude conditions as it greatly improves the power generated from the SEH.