The Effects of Geometrical Factors on the Step-Up Ratio in Piezoelectric Transformer

Abstract:

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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 et al., "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:

$35.00

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