An Efficient Piezoelectric Energy Harvesting Interface Circuit Using a Bias-Flip Rectifier and Shared Inductor

Ramadass Y.K.

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An Efficient Piezoelectric Energy Harvesting Interface Circuit Using a Bias-Flip Rectifier and Shared Inductor

机译：An Efficient Piezoelectric Energy Harvesting Interface Circuit Using a Bias-Flip Rectifier and Shared Inductor

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摘要

Harvesting ambient vibration energy through piezoelectric means is a popular energy harvesting technique which can potentially supply 10-100's of ??W of available power. One of the main limitations of existing piezoelectric harvesters is in their interface circuitry. In this paper, a bias-flip rectifier circuit that can improve the power extraction capability from piezoelectric harvesters over conventional full-bridge rectifiers and voltage doublers by greater than 4X is implemented in a 0.35 ??m CMOS process. An efficient control circuit to regulate the output voltage of the rectifier and recharge a storage capacitor is presented. The inductor used within the bias-flip rectifier is shared efficiently with a multitude of switching DC-DC converters within the system reducing the overall component count.

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来源
《IEEE Journal of Solid-State Circuits》 |2010年第1期|共16页
作者
Ramadass Y.K.;
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作者单位

Massachusetts Inst. of Technol., Cambridge, MA, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
DC-DC power convertors; energy harvesting; flip-chip devices; piezoelectric semiconductors; rectifiers; vibrations; voltage control; voltage regulators; ambient vibration energy harvesting; bias-flip rectifier; control circuit; full-bridge rectifiers; interface circuitry; output voltage regulation; piezoelectric energy harvesting interface circuit; piezoelectric harvesters; power extraction; shared inductor; storage capacitor; switching DC-DC converters; voltage doublers; DC-DC converter; full-bridge rectifier; inductor sharing; micropower; piezoelectric harvester;

An Efficient Piezoelectric Energy Harvesting Interface Circuit Using a Bias-Flip Rectifier and Shared Inductor

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