Real world evaluation of a self-startup SSHI rectifier for piezoelectric vibration energy harvesting

Abstract

This paper presents an enhanced SSHI (synchronized switch harvesting on inductor) rectifier with startup circuit and representative environment validation using real world vibration data collected from a tram. Compared to a conventional SSHI rectifier, the proposed rectifier dynamically monitors the working status of the circuit and restarts it when necessary. The proposed rectifier is designed in a 0.35 μm HV CMOS process and its performance is experimentally evaluated. With a 500-s real-world collected vibration data, the conventional and the proposed SSHI rectifiers record average power performance improvements by 9.2× and 22× respectively, compared to a passive full-bridge rectifier. As the startup circuit helps restart the SSHI rectifier several times, it is able to extract energy in an increased excitation range and its average power output performance is 2.4× higher than a conventional SSHI rectifier.

Publication DOI: https://doi.org/10.1016/j.sna.2017.07.050
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
Additional Information: ©2017 The Authors.Published by Elsevier B.V.This is an open access article under the CC BY license(http://creativecommons.org/licenses/by/4.0/)
Publication ISSN: 1873-3069
Last Modified: 12 Feb 2024 08:24
Date Deposited: 25 Mar 2019 14:09
Full Text Link:
Related URLs: https://www.sci ... 4193?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2017-09-01
Published Online Date: 2017-08-02
Accepted Date: 2017-07-26
Authors: Du, Sijun
Jia, Yu (ORCID Profile 0000-0001-9640-1666)
Zhao, Chun
Chen, Shao-Tuan
Seshia, Ashwin A

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