Self-Powered Dual-Inductor MI-PSSHI-VDR Interface Circuit for Multi-PZTs Energy Harvesting

Vibration energy harvesting using multiple piezoelectric transducers (multi-PZTs) can increase its output power and environmental adaptability. At present, there are still few research articles on multi-input interface circuits for multi-PZTs, especially those using the parallel synchronized switchi...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 37; no. 4; pp. 3753 - 3762
Main Authors Xia, Huakang, Xiong, Jin, Xia, Yinshui, Chen, Zhidong, Wang, Xiudeng, Ye, Yidie, Shi, Ge
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Capacitors
Circuits
Energy harvesting
Energy harvesting (EH)
Inductors
multi-input interface
multiple piezoelectric transducers (multi-PZTs)
Piezoelectric transducers
Rectifiers
Synchronization
synchronized switching harvesting on inductor (SSHI)
Topology
Transistors
Vibrations
voltage doubler rectifier (VDR)
Voltage doublers
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Summary:Vibration energy harvesting using multiple piezoelectric transducers (multi-PZTs) can increase its output power and environmental adaptability. At present, there are still few research articles on multi-input interface circuits for multi-PZTs, especially those using the parallel synchronized switching harvesting on inductor (PSSHI) technique. Therefore, this article presents a self-powered dual-inductor MI-PSSHI voltage doubler rectifier (VDR) interface circuit. It can process multi-PZT voltages with arbitrary phases input. The measurements demonstrate that the prototyped MI-PSSHI-VDR circuit can extract a peak power of 1.93 mW from four PZTs under an excitation of 1.5 g and 77.5 Hz. The energy integration efficiency and energy extraction efficiency of the prototyped circuit are 93.2% and 75.1%. Compared with a multi-input full-bridge rectifier, the proposed circuit can achieve 3.22× power improvement and 3.58× voltage improvement, which grasps a good balance between the indices of peak output power and load voltage range. Additionally, the MI-PSSHI-VDR circuit is easy to implement and shows a good scalability, which can be an alternative solution for multi-PZTs energy harvesting.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2021.3124828