CUED Publications database

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

Du, S and Jia, Y and Zhao, C and Chen, ST and Seshia, AA (2017) Real-world evaluation of a self-startup SSHI rectifier for piezoelectric vibration energy harvesting. Sensors and Actuators, A: Physical, 264. pp. 180-187. ISSN 0924-4247

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Abstract

© 2017 The Authors 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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 26 Jul 2017 20:10
Last Modified: 19 Sep 2017 01:33
DOI: