Simulation of Piezoelectric Transformers with COMSOL

Thomas Andersen, Michael A. E. Andersen, Ole Cornelius Thomsen

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Abstract

In this work COMSOL is utilized to obtain the Mason lumped parameter model for a piezoelectric transformer (PT) design. The Mason lumped parameters are relevant in the design process of power converters. The magnitude of the impedance is simulated for a specific: interleaved multilayer thickness mode PT. Interleaved indicates that the primary section of the PT has been interleaved into the secondary section. Furthermore the primary section is build with interdigitated electrodes (IDE). The PT design has been prototyped and the measurements results are compared with simulations. Two methods for simplifying the PT model are given in order to decrease the simulation time. This paper aims to aid electrical engineers with less knowledge within the field of mechanics, to be able to simulate a PT design with COMSOL and extract the key electrical parameters.
Original languageEnglish
Title of host publicationProceedings of the 2012 COMSOL Conference
Number of pages7
Publication date2012
ISBN (Print)978-0-9839688-7-0
Publication statusPublished - 2012
EventCOMSOL Conference 2012 - Milan, Italy
Duration: 10 Oct 201212 Oct 2012

Conference

ConferenceCOMSOL Conference 2012
Country/TerritoryItaly
CityMilan
Period10/10/201212/10/2012

Keywords

  • Model
  • Simplification
  • IDE
  • Mason
  • COMSOL Multiphysics 4.2a

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