Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.07c
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- Pages.1490-1492
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- 2003
Electrical Characteristics of Disk-type Piezotransformer with Electrode Ratio of Driving and Generating Part
디스크형 압전변압기의 전극비에 따른 전기적 특성
- Lee, J.P. (Kwangwoon Univ.) ;
- Chae, H.I. (Juseong College) ;
- Jeong, S.H. (Daewon Science College) ;
- Kang, H.S. (Cheongju Polytechnic College) ;
- Lee, C.H. (Chungju Nat'l Univ.) ;
- Shin, H.T. (Kwangwoon Univ.) ;
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Hong, J.W.
(Kwangwoon Univ.)
- Published : 2003.07.21
Abstract
A new type of piezoelectric transformer using radial vibration of disk, poled with the same direction is proposed. The piezoelectric ceramics was composed to PZT-PMN-PSN. The surface ratio of driving electrode and generating electrode of the piezoelectric transformer ranges from 1.4:1 to 3:1. As a experimental result, both resonance frequency and step-up voltage ratio increased with increasing load resistance. The step-up voltage ratio was reached more than 60 times under no load resistance. The maximum efficiency of 97.7% at load resistance of 2k
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