A 0.3-V Ultralow-Supply-Voltage Boost Converter for Thermoelectric Energy Harvesting With Time-Domain-Based MPPT

被引：13

作者：

Wu, Siu-Hong ^{[1
]}

Liu, Xun ^{[1
]}

Wan, Qiping ^{[1
]}

Kuai, Qin ^{[1
]}

Teh, Ying-Khai ^{[2
]}

Mok, Philip K. T. ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Peoples R China

[2] San Diego State Univ, Dept Elect & Comp Engn, San Diego, CA 92182 USA

来源：

IEEE SOLID-STATE CIRCUITS LETTERS | 2021年 / 4卷 / 04期

关键词：

Energy harvesting (EH); maximum power point tracking (MPPT); thermoelectric generator (TEG); ultralow-voltage control; zero-current switching (ZCS); MU-W; EFFICIENCY; INTERFACE; STARTUP; SYSTEM; MV;

D O I：

10.1109/LSSC.2021.3076923

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter proposes a boost converter with ultralow-voltage time-domain control for thermoelectric generators (TEGs). A subthreshold 0.3-V voltage supplied control system is constructed using time domain and constant on-time approach. The maximum power point tracking (MPPT) is realized using the fractional open-circuit voltage scheme. The proposed converter is implemented in a 0.13-mu m CMOS process. The measured minimum TEG open-circuit voltage which can maintain harvesting is 80 mV. The power consumption of the control circuit is down to 840 nW. The peak end-to-end efficiency is 72.1% at 170-mV open-circuit voltage where the input power is 34.4 mu W.

引用

页码：100 / 103

页数：4

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