NDLI: Flashover prevention of high voltage piezoelectric transformers

Content Provider	IEEE Xplore Digital Library
Author	Benwell, A. Kovaleski, S. Wacharasindhu, T. Jae Wan Kwon Baxter, E.
Copyright Year	2009
Description	Author affiliation: Department of Electrical and Computer Engineering, University of Missouri, 349 Engineering Building West, Columbia, United States (Benwell, A.; Kovaleski, S.; Wacharasindhu, T.; Jae Wan Kwon; Baxter, E.)
Abstract	Piezoelectric transformers are used as step-up voltage elements in many devices [1, 2]. The University of Missouri is developing a piezoelectric transformer as an accelerator for an ion beam [3]. In cases where high voltage pulses are desired, discharges can result from a large electric field near triple point junctions [4, 5]. Due to the small scale of the device, conductive triple point shields are difficult to employ to prevent flashover. This paper presents an investigation of piezoelectric flashover prevention by thin film encapsulation. Dielectric material was deposited on the piezoelectric transformer both over the entire device, and at specific regions of interest. The dielectric was deposited by evaporation to eliminate gaps at the triple point. The flashover strength is evaluated depending on the dielectric type, thickness, and length. The mechanical loss incurred by the deposition is evaluated to determine if it hinders the motion of the transformer.
Starting Page	1112
Ending Page	1115
File Size	729100
Page Count	4
File Format	PDF
ISBN	9781424440641
DOI	10.1109/PPC.2009.5386272
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Flashover Dielectric thin films Piezoelectric devices Ion accelerators Ion beams Pulse transformers Conductive films Piezoelectric films Encapsulation Dielectric materials
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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