A Multiple Charge Extractions and Multiple Precharge Interface Circuit for Piezoelectric Energy Harvesting

Yi Yang1; Zhiyuan Chen1; Jingjing Liu1; Ziyu Guo1; Junmin Jiang2; Xiaoyang Zeng1

10.1109/ISCAS48785.2022.9937900

2022-05-27

2022 IEEE International Symposium on Circuits and Systems (ISCAS)

0271-4302

978-1-6654-8486-2

2022 IEEE International Symposium on Circuits and Systems (ISCAS)

1-5

27 May-1 June 2022

Austin, TX, USA

This paper proposes a piezoelectric energy harvesting interface circuit using multiple charge extractions and the multiple precharge (MCE-MPC) technique. This circuit is able to extract energy from PEH efficiently using a miniscule inductor and has the advantage of controllable precharge energy. It improves output power and extraction efficiency by using precharge and multiple transfers techniques. When the inductor value is 50μH, the output power of MCE-MPC is increased by 101.92% and 24.60% compared with synchronous electric charge extraction (SECE) and multi-shot SECE (MCE), respectively, and 7.62% compared with multiple charge extractions with bias-flip (MCEBF) when precharging the piezoelectric voltage to the same value. When the inductor value is 1mH, an extraction efficiency of 102.9% can be obtained by MCE-MPC.

Piezoelectric Energy Harvesting Interface Circuit Synchronous Electric Charge Extraction MCE-MPC

其他

英语

IEEE

1.State Key Laboratory of ASIC and System, Fudan University, Shanghai, China
2.Southern University of Science and Technology, Shenzhen, China

Yi Yang,Zhiyuan Chen,Jingjing Liu,et al. A Multiple Charge Extractions and Multiple Precharge Interface Circuit for Piezoelectric Energy Harvesting[C],2022:1-5.