A 10-mV-Startup-Voltage Thermoelectric Energy Harvesting System With a Piezoelectric Starter

A 10-mV-Startup-Voltage Thermoelectric Energy Harvesting System With a Piezoelectric Starter

Wang, Ruizhi (Student TU Delft)
Liang, Yansong (Student TU Delft)
Du, S. (TU Delft Electronic Instrumentation)

2022

An ultra-low-startup-voltage thermoelectric energy harvesting system assisted by a piezoelectric generator (PEG) is presented in this paper. When the energy harvesting system is implemented in a place where there is mechanical vibration, the associated PEG can generate a stable clock signal and drive the boost converter to start from the cold state even at extremely low thermoelectric generator (TEG) voltage. The proposed system is designed and simulated in a 180-nm BCD process. The simulations show that the proposed system can start the TEG system from the cold state from as low as 10 mV of TEG voltage while keeping a 63.9% efficiency. The peak power conversion efficiency is achieved at 74.9% when the TEG voltage is 50 mV.

Thermoelectric energy harvesting
piezoelectric generator
cold-startup
maximum power point tracking

http://resolver.tudelft.nl/uuid:526873f8-0696-4610-83b1-98a6836e8b6a

https://doi.org/10.1109/ISCAS48785.2022.9937554

IEEE, Danvers

2023-07-01

978-1-6654-8486-2

Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS)

2022 IEEE International Symposium on Circuits and Systems (ISCAS), 2022-05-27 → 2022-06-01, Austin, United States

Proceedings - IEEE International Symposium on Circuits and Systems, 0271-4310, 2022-May

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

conference paper

© 2022 Ruizhi Wang, Yansong Liang, S. Du