• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.07b
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• pp.644-647
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• 2003

In this paper, Small scaled multilayered piezoelectric transformer of Rosen type has been fabricated and tested for the purpose of PDA backlight. Turn on characteristics of PDA backlight has been traced with different voltages. $22{\times}4.5{\times}1.1[mm^3]$ multilayered transformer shows full turn-on behavior starting from 4.3[V].

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2007.11a
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• pp.250-250
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• 2007

In this paper, multilayer piezoelectric transformer for high power is presented. This piezoelectric transformer, with a multilayered construction in the thickness direction, was fabricated at the sintering temperature of $1055^{\circ}C$. The electrical properties of multilayer piezoelectric transformer as a function of Internal electrode structure, with same size, were investigated. Also, the multilayer piezoelectric transformer with different layer number of 5, 10, 15 layers, were investigated.