A 50nW-to-10mW output power tri-mode digital buck converter with self-tracking zero current detection for photovoltaic energy harvesting

Po-Hung Chen, Chung Shiang Wu, Kai Chun Lin

研究成果: Conference contribution同行評審

25 引文 斯高帕斯(Scopus)

摘要

Photovoltaic energy harvesting is an attractive method of developing battery-free systems for wireless sensors, biomedicai electronics, and the internet of things (IoT). To obtain an energy-efficient system, low-power digital circuits operating in the near/sub-threshold region are widely used in such applications. Therefore, the design of a low-voltage buck converter, which converts the harvested energy to the regulated output is critical. Sub-1V buck converters have been implemented using a large inductor [1] to operate in a continuous conduction mode (CCM). Both CCM and discontinuous conduction mode (DCM) operation has been demonstrated in [2], using an analog zero current detection (ZCD) technique to extend the available output power range. However, the analog circuit limits the minimum output power to 50μW, and reduces the conversion efficiency under light load conditions.

原文English
主出版物標題2015 IEEE International Solid-State Circuits Conference, ISSCC 2015 - Digest of Technical Papers
發行者Institute of Electrical and Electronics Engineers Inc.
頁面376-377
頁數2
ISBN(電子)9781479962235
DOIs
出版狀態Published - 22 2月 2015
事件2015 62nd IEEE International Solid-State Circuits Conference, ISSCC 2015 - Digest of Technical Papers - San Francisco, United States
持續時間: 22 2月 201526 2月 2015

出版系列

名字Digest of Technical Papers - IEEE International Solid-State Circuits Conference
58
ISSN(列印)0193-6530

Conference

Conference2015 62nd IEEE International Solid-State Circuits Conference, ISSCC 2015 - Digest of Technical Papers
國家/地區United States
城市San Francisco
期間22/02/1526/02/15

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