Characteristics of Piezoelectric Transformer Using PMS-PZT, PMN-PZT Ceramics

PMS-PZT, PMN-PZT계 세라믹스를 이용한 압전변압기의 특성

  • 이동균 (건국대학교 전기공학과) ;
  • 안형근 (건국대학교 전기공학과) ;
  • 한득영 (건국대학교 전기공학과) ;
  • 윤석진 (한국과학기술연구원 박막기술연구센터) ;
  • 김현재 (한국과학기술연구원 박막기술연구센터)
  • Published : 2000.03.01

Abstract

The piezoelectric material for piezoelectric transformer needs the high electromechanical coupling factor( $k_{p}$) the piezoelectric constant( $d_{33}$) and the mechanical quality factor( $Q_{m}$)in order to obtain high voltage step-up ratio and low temperature rising. In this study the piezoelectric transformers were fabricated using Pb[$Zr_{0.45}$/ $Ti_{0}$48//L $u_{0.02}$(M $n_{1}$3//S $b_{2}$3/)$_{0.05}$$O_3$(PMS-PZT) and Pb[Z $r_{0.25}$/ $Ti_{0.375}$(M $g_{1}$3//N $b_{2}$3/)$_{0.375}$$O_3$+0.5wt%Mn $O_2$(PMN-PZT) ceramics. The piezoelectric properties of PMS-PZT and PMN-PZT were measured. The voltage set-up ratios of the piezoelectric transformers using PMS-PZT and PMN-PZT were the value of 15, 20 respectively under 100$_{KΩ}$ in Rosen type transformer.r.ormer.r.r.r.r.r.r.

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