Real-world evaluation of a self-startup SSHI rectifier for piezoelectric vibration energy harvesting
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Affiliation
University of Cambridge; University of ChesterPublication Date
2017-08-02
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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-second 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.Citation
Du, S., Jia, Y., Zhao, C., Chen, S.T., & Seshia, A.A. (2017). Real-world evaluation of a self-startup SSHI rectifier for piezoelectric vibration energy harvesting. Sensors and Actuators A: Physical, 264, 180-87.Publisher
ElsevierAdditional Links
http://www.sciencedirect.com/science/article/pii/S0924424717304193Type
ArticleLanguage
enISSN
0924-4247ae974a485f413a2113503eed53cd6c53
10.1016/j.sna.2017.07.050
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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/