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HomeMaterials Science ForumMaterials Science Forum Vols. 539-543The Effects of Geometrical Factors on the Step-Up...

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

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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.

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THERMEC 2006

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

3319-3325

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.3319

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Online since:

March 2007

Authors:

Man Soon Yoon, T.S. Yoon, J.R. Kim, Y.G. Choi, Soon Chul Ur

Keywords:

3-Dimensional Piezoelectric Transformer, Powder Injection Molding (PIM), Shape Factor

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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