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

Lu，Tianqi1; Wang，Ruizhi1; Tang，Zhong1; Zou，Yiwei1; Yue，Xinling1; Liang，Yansong1; Gong，Haoran1; Liu，Shurui1; Chen，Zhiyuan2; Liu，Xun3; Jiang，Junmin4; Zhao，Bo5; Du，Sijun1

2024

10.1109/TPEL.2024.3362366

IEEE Transactions on Power Electronics   影响因子和分区

0885-8993

1941-0107

This article presents a 10mV-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.

boost converter Capacitors Clocks cold-startup DC-DC converter Energy harvesting Low voltage maximum power point tracking (MPPT) Oscillators piezoelectric generator (PEG) Switches thermoelectric energy generator (TEG) Thermoelectric energy harvesting Vibrations

SCI ; EI

英语

其他

ENGINEERING

2-s2.0-85184810438

Scopus

1.Department of Microelectronics, Delft University of Technology, Delft, The Netherlands
2.State Key Laboratory of ASIC and System, Fudan University, Shanghai, China
3.School of Science and Engineering (SSE), Chinese University of Hong Kong, Shenzhen, China
4.Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, China
5.Institute of VLSI Design, Zhejiang University, Hangzhou, China

Lu，Tianqi,Wang，Ruizhi,Tang，Zhong,et al. A Thermoelectric Energy Harvesting System Assisted by A Piezoelectric Transducer Achieving 10-mV Cold-Startup and 82.7% Peak Efficiency[J]. IEEE Transactions on Power Electronics,2024,39(5):6352-6363.

Lu，Tianqi.,Wang，Ruizhi.,Tang，Zhong.,Zou，Yiwei.,Yue，Xinling.,...&Du，Sijun.(2024).A Thermoelectric Energy Harvesting System Assisted by A Piezoelectric Transducer Achieving 10-mV Cold-Startup and 82.7% Peak Efficiency.IEEE Transactions on Power Electronics,39(5),6352-6363.

Lu，Tianqi,et al."A Thermoelectric Energy Harvesting System Assisted by A Piezoelectric Transducer Achieving 10-mV Cold-Startup and 82.7% Peak Efficiency".IEEE Transactions on Power Electronics 39.5(2024):6352-6363.