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Real-world evaluation of a self-startup SSHI rectifier for piezoelectric vibration energy harvesting
Du, Sijun Jia, Yu Zhao, Chun Chen, Shao-Tuan Seshia, Ashwin A.
Du, Sijun
Jia, Yu
Zhao, Chun
Chen, Shao-Tuan
Seshia, Ashwin A.
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Publication Date
2017-08-02
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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-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
Elsevier
Journal
Sensors and Actuators A: Physical
Research Unit
DOI
10.1016/j.sna.2017.07.050
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PubMed Central ID
Type
Article
Language
en
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ISSN
0924-4247