A highly efficient interface circuit for ultra-low-voltage energy harvesting

IEICE Electronics Express

Zhangming Zhu¹  Zheng Yang¹  Jingmin Wang¹  Yani Li¹  Yintang Yang¹ 

[1] School of Microelectronics, Xidian University

关键词: CMOS;    energy harvesting;    bulk-driven;    input-powered;   

DOI  :  10.1587/elex.10.20130869

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)Cited-By(3)Based on SMIC 0.18μm standard CMOS technology, an input-powered vibrational energy harvesting interface circuit is proposed. It can be applied in energy harvesting devices for the extremely low voltage and high conversion rate. The simulation results show that the minimum input voltage could be as low as 0.15V by utilizing bulk-driven technique. Correspondingly, the voltage conversion efficiency can reach up to 80%. And the power conversion efficiency is also 80% when voltage equals to 0.25V. The proposed input-powered interface circuit, compared with the conventional output-powered circuits, can automatically shut down when the input voltage amplitude is low enough, thereby avoiding unnecessary energy loss.

【 授权许可】

Unknown