Piezoelectric vibration energy harvesting: A connection configuration scheme to increase operational range and output power

Abstract

For a conventional monolithic piezoelectric transducer (PT) using a full-bridge rectifier, there is a threshold voltage that the open-circuit voltage measured across the PT must attain prior to any transfer of energy to the storage capacitor at the output of the rectifier. This threshold voltage usually depends on the voltage of the storage capacitor and the forward voltage drop of diodes. This article presents a scheme of splitting the electrode of a monolithic piezoelectric vibration energy harvester into multiple (n) equal regions connected in series in order to provide a wider operating voltage range and higher output power while using a full-bridge rectifier as the interface circuit. The performance of different series stage numbers has been theoretically studied and experimentally validated. The number of series stages (n≥1) can be predefined for a particular implementation, which depends on the specified operating conditions, to achieve optimal performance. This enables the system to attain comparable performance compared to active interface circuits under an increased input range while no additional active circuits are required and the system is comparatively less affected by synchronized switching damping effect.

Publication DOI: https://doi.org/10.1177/1045389X16682846
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
Additional Information: © Sage 2016. The final publication is available via Sage at http://dx.doi.org/10.1177/1045389X16682846
Publication ISSN: 1530-8138
Last Modified: 12 Feb 2024 08:24
Date Deposited: 25 Mar 2019 14:23
Full Text Link: https://chester ... le/10034/620357
Related URLs: https://journal ... 045389X16682846 (Publisher URL)
PURE Output Type: Article
Published Date: 2017-08-01
Published Online Date: 2016-12-12
Accepted Date: 2016-12-01
Authors: Du, Sijun
Jia, Yu (ORCID Profile 0000-0001-9640-1666)
Seshia, Ashwin A

Download

[img]

Version: Accepted Version

| Preview

Export / Share Citation


Statistics

Additional statistics for this record