Paper Title:
The Effects of Geometrical Factors on the Step-Up Ratio in Piezoelectric Transformer
  Abstract

The electromechanical properties of a newly proposed 3-dimensional piezoelectric transformer have been investigated. Especially, the effects of 3-dimensional geometry on the maximum tip displacement were carefully investigated. As a result, it was found that the maximum strain of the 3-dimensional piezoelectric device was significantly enhanced up to 4.5 times higher than that of a disk shape device. This data were in good agreement with the finite element model analysis of strains and vibration modes. Moreover, a very high voltage step-up ratio of 290 (10 times higher than the Rosen type), sustaining efficiency more than 96%, were achieved.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
3319-3325
DOI
10.4028/www.scientific.net/MSF.539-543.3319
Citation
M. S. Yoon, T.S. Yoon, J.R. Kim, Y.G. Choi, S. C. Ur, "The Effects of Geometrical Factors on the Step-Up Ratio in Piezoelectric Transformer", Materials Science Forum, Vols. 539-543, pp. 3319-3325, 2007
Online since
March 2007
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Price
$32.00
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