A rectifier for piezoelectric energy harvesting system with series Synchronized Switch Harvesting Inductor

Author

Xuan-Dien Do ; Huy-Hieu Nguyen ; Seok-Kyun Han ; Sang-Gug Lee

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

fYear

2013

fDate

11-13 Nov. 2013

Firstpage

269

Lastpage

272

Abstract

In this paper, a rectifier with series Synchronized Switch Harvesting Inductor (Series SSHI) is proposed for piezoelectric (PE) energy harvesting system. The serial inductor helps to flip the voltage across the internal capacitor of the PE transducer instead of wasting the capacitor voltage by discharge. Active diodes are used for the switches to further improve the extraction efficiency. From measurements, the proposed rectifier shows a power extraction efficiency of 3.3 times that of the active full bridge (FB) rectifier, and more than 90% of the power conversion efficiency.

Keywords

energy harvesting; inductors; piezoelectric transducers; power conversion; rectifiers; FB rectifier; PE energy harvesting system; PE transducer; Series SSHI; active diodes; active full bridge rectifier; capacitor voltage; internal capacitor; piezoelectric energy harvesting system; power conversion efficiency; power extraction efficiency; serial inductor; series synchronized switch harvesting inductor; Bridge circuits; Capacitors; Energy harvesting; Inductors; Rectifiers; Switches; Transducers; SSHI rectifier; Vibration energy harvesting; full-bridge rectifier; piezoelectric;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference (A-SSCC), 2013 IEEE Asian

Conference_Location

Singapore

Print_ISBN

978-1-4799-0277-4

Type

conf

DOI

10.1109/ASSCC.2013.6691034

Filename

6691034