A Thermoelectric Energy Harvesting System Assisted by a Piezoelectric Transducer Achieving 10-MV Cold-Startup and 82.7% Peak Efficiency

被引：1

作者：

Lu, Tianqi ^{[1
]}

Wang, Ruizhi ^{[1
]}

Tang, Zhong ^{[1
]}

Zou, Yiwei ^{[1
,2
]}

Yue, Xinling ^{[1
]}

Liang, Yansong ^{[1
,3
]}

Gong, Haoran ^{[1
]}

Liu, Shurui ^{[1
]}

Chen, Zhiyuan ^{[4
]}

Liu, Xun ^{[5
]}

Jiang, Junmin ^{[6
]}

Zhao, Bo ^{[7
]}

Du, Sijun ^{[1
]}

机构：

[1] Delft Univ Technol, Dept Microelect, NL-2628 CD Delft, Netherlands

[2] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[3] Univ Calif San Diego, Dept Elect & Comp Engn, San Diego, CA 92093 USA

[4] Fudan Univ, State Key Lab ASIC & Syst, Shanghai 201203, Peoples R China

[5] Chinese Univ Hong Kong, Sch Sci & Engn SSE, Shenzhen 518172, Peoples R China

[6] Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518000, Peoples R China

[7] Zhejiang Univ, Inst VLSI Design, Hangzhou 310058, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2024年 / 39卷 / 05期

关键词：

Boost converter; cold-startup; dc-dc converter; maximum power point tracking (MPPT); piezoelectric generator (PEG); thermoelectric energy generator (TEG); thermoelectric energy harvesting; BOOST CONVERTER; MPPT; INTERFACE; CIRCUIT; VOLTAGE;

D O I：

10.1109/TPEL.2024.3362366

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：

This article presents a 10 mV-startup-voltage thermoelectric energy harvesting system, assisted by a piezoelectric generator (PEG) as a cold starter. It exploits the fact that when a thermoelectric energy harvesting system is implemented in a place where kinetic energy is also present, the PEG starter can provide a clock signal to start the system. Thanks to the high output impedance of the PEG, the generated clock voltage can easily go over several hundreds of mV, which can be used to drive the boost converter to harvest thermoelectric energy even at an extremely low thermoelectric generator (TEG) voltage. The proposed system was fabricated in a 180-nm BCD process. The measurement results show that the TEG system can start up from the cold state with a TEG voltage as low as 10 mV while maintaining a 63.9% efficiency. The peak power conversion efficiency reaches 83.7% when the TEG voltage is 55 mV.

引用

页码：6352 / 6363

页数：12