Title :
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
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;
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2013 IEEE Asian
Conference_Location :
Singapore
Print_ISBN :
978-1-4799-0277-4
DOI :
10.1109/ASSCC.2013.6691034
