用于热电能量收集的高效升压变换器控制

2013 IEEE 20th International Conference on Electronics, Circuits, and Systems (ICECS) Pub Date : 2013-12-01 DOI:10.1109/ICECS.2013.6815435

Janko Katic, S. Rodriguez, A. Rusu

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引用次数: 5

摘要

本文提出了一种针对植入式热电能量收集应用的DC-DC升压变换器的超低功耗控制电路。采用零电流开关技术，提高了输入变换器的效率。开关ON间的自适应延迟保证了同步整流器的零电压开关，降低了开关损耗。采用这两种技术的控制电路平均功耗为620nW。这允许转换器从低于5μW的收获功率工作。对于高于20的电压转换比，与最先进的解决方案相比，所提出的电路和技术显示出效率的提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An efficient boost converter control for thermoelectric energy harvesting

This paper presents an ultra-low power control circuit for a DC-DC boost converter targeting implantable thermoelectric energy harvesting applications. Efficiency of the input converter is enhanced by utilizing zero-current switching technique. Adaptive delay between ON states of switches assures zero-voltage switching of synchronous rectifier and reduces switching losses. The control circuit employing both techniques consumes an average power of 620nW. This allows the converter to operate from harvested power below 5μW. For voltage conversion ratios above 20, the proposed circuits and techniques demonstrate efficiency improvement compared to the state-of-the-art solutions.

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来源期刊

2013 IEEE 20th International Conference on Electronics, Circuits, and Systems (ICECS)

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