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

被引：428

作者：

Ramadass, Yogesh K. ^{[1
]}

Chandrakasan, Anantha P. ^{[1
]}

机构：

[1] MIT, Cambridge, MA 02139 USA

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2010年 / 45卷 / 01期

关键词：

Bias-flip rectifier; DC-DC converter; full-bridge rectifier; inductor sharing; micropower; piezoelectric harvester;

D O I：

10.1109/JSSC.2009.2034442

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：

Harvesting ambient vibration energy through piezoelectric means is a popular energy harvesting technique which can potentially supply 10-100's of mu 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 mu 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.

引用

页码：189 / 204

页数：16

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