한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2004년도 하계학술대회 논문집 Vol.5 No.2
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- Pages.595-598
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- 2004
강압용 압전변압기 제작 및 전기적특성
Process and Electrical Characteristics of Step-down Piezoelectric Transformers
- Kwon, Ju-Nam (konkuk univ) ;
- Shin, Hoon-Bum (konkuk univ) ;
- Han, Deuk-Young (konkuk univ) ;
- Ahn, Hyung-Keun (konkuk univ)
- 발행 : 2004.07.05
초록
We have explained Process and electrical characteristics of a step-down Rosen type piezoelectric transformer for AC-adapter. When the electric voltage is applied to the driving piezoelectric vibrator notarized in the thickness direction, then output voltage is generated at the generating piezoelectric vibrator polarized in the thickness direction due to the piezoelectric effects. Output voltage and current from a single-layered piezoelectric transformer were measured under the various condition of loads and frequencies It was shown from experiments that output voltage has increased and resonance frequency has changed according to various resistor loads. Output current has decreased inversely proportional to the loads
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