Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2004.07b
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- Pages.722-725
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- 2004
Fabrication and Characteristics of Ring-Dot type Piezoelectric Transformer
Ring-dot형 감압형 압전변환기의 제작과 특성
- Nam, Sung-Jin (Yeungnam Univ.) ;
- Lee, Yeung-Min (Yeungnam Univ.) ;
- Nam, Hyo-Duk (Yeungnam Univ.) ;
- Sohn, Joon-Ho (S Tech) ;
- Lee, Joon-Hyung (Kyungpook Univ.)
- 남성진 (영남대학교 나노시스템공학과) ;
- 이영민 (영남대학교 나노시스템공학과) ;
- 남효덕 (영남대학교 전자정보공학과) ;
- 손준호 (에스테크) ;
- 이준형 (경북대학교 무기재료공학과)
- Published : 2004.07.05
Abstract
Voltage step-down characteristics in Ring/Dot type piezoelectric transformer were examined as a function of the area of input electrode when the area of output electrode is fixed. The effects of driving frequency and load resistance on the voltage step-down characteristics were also examined. Voltage gain was greatly dependent on the driving frequency and load resistance, and showed a maximum gain at resonance frequency of the step-down transformer. The frequency where the maximum output voltage appears increased about 0.2% as the load resistance increased from 10 to