Three Dimensional Finite Element Analysis for Piezoelectric Transformer

  • Joo, Hyun-Woo (School of Electrical and Computer Engineering Seoul National University) ;
  • Lee, Chang-Hwan (School of Electrical and Computer Engineering Seoul National University) ;
  • Jung, Hyun-Kyo (School of Electrical and Computer Engineering Seoul National University)
  • Published : 2001.01.01

Abstract

This paper presents the numerical analysis of piezoelectric devices using three-dimensional finite element analysis. The characteristic of piezoelectric transducer, such as mechanical displacement and electrical are analyzed and the validity is confirmed by experiments Applying the finite element routine to a piezoelectric transformer, the resonance features electrical impedance. the ratio of step-up voltage and vibration mode of piezoelectric transformer are calculated numerically By using three-dimensional finite element method effects of width variation to resonance features, electrical input impedance and the voltage step-up ratio for a piezoelectric transformer, can be considered in design procedure.

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