대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 C
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- Pages.1511-1514
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- 2002
경방향과 두께방향 진동모드를 이용한 강압용 압전변압기의 특성에 관한 연구
A Study on Characteristics of Step-down Piezoelectric Transformer Using Transvers and Thickness Vibration mode
- Chong, Hyon-Ho (Gloria Techniques Service Co.,LTD) ;
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Park, Tae-Gone
(Changwon National Univ.) ;
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Kim, Myung-Ho
(Changwon National Univ.) ;
- Kwon, O-Yong (Gloria Techniques Service Co.,LTD) ;
- Lee, Jin-I (Gloria Techniques Service Co.,LTD) ;
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Lee, Won-Jae
(Korea Electrictechnology Research Institute)
- 발행 : 2002.07.10
초록
This paper presents design and construct of flat type step-down piezoelectric transformer for the application to AC adaptor. This piezoelectric transformer operated in resonance vibration mode. In this paper, finite element method(FEM) was used for analysing piezoelectric transformers. Stress and electric field of the transformer were simulated at resonance frequency. Using this simulation results, we manufactured improved Rosen type piezoelecric transfomer and measured its output characteristics. As results, output power was linearly increased by increasing input power at resonance frequency and it was found that the transformer an invariable output power for input power. From these results, we expect that this piezoelecric transfomer can be applied to small size and low capacitive AC adaptor.
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