Autonomous and self-starting efficient micro energy harvesting interface with adaptive MPPT, buffer monitoring, and voltage stabilization
Autonomous and self-starting efficient micro energy harvesting interface with adaptive MPPT, buffer monitoring, and voltage stabilization
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DOI：
10.1109/esscirc.2012.6341266
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发表时间：
2012-11
期刊：
影响因子：
--
通讯作者：
J. Leicht;D. Maurath;Y. Manoli
中科院分区：
文献类型：
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作者：
J. Leicht;D. Maurath;Y. Manoli
针对高阻振动驱动电磁能量换能器，提出了一种高效的自主式微能量采集接口。实现了一种新颖的有源倍压电路和自适应最大功率点跟踪(MPPT)能量处理方案。该接口可实现0.44 V至4.15 V幅度的宽电压范围采集。实现了跟踪效率高达93%、总效率高达72%的采集。为了满足低功耗无线传感器节点等能量采集应用的需要，实现了可编程稳压。该原型芯片采用0.35μm cmos工艺制造，无需启动帮助即可自给。
This paper presents an efficient autonomous micro energy harvesting interface optimized for high-resistive vibration-driven electromagnetic energy transducers. A novel active voltage doubler and an energy processing scheme with adaptive maximum power point tracking (MPPT) is implemented. The interface enables wide voltage range harvesting for amplitudes between 0.44 V and 4.15V. Harvesting with tracking efficiencies of up to 93% and total efficiencies of up to 72% is enabled. In order to supply energy harvesting applications such as low power wireless sensor nodes a programmable voltage stabilization is implemented. The prototype chip is fabricated in a 0.35 μm CMOS process and is self-supplied needing no start-up help.