전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2000년도 전력전자학술대회 논문집
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- Pages.1-5
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- 2000
고전압 플라이백 변압기의 과도특성
Transient Characteristics of High Voltage Flyback Transformer
- 임철우 (경상대학교 제어계측공학과, 자동화 및 컴퓨터 응용기술연구소) ;
- 박남주 (경상대학교 제어계측공학과, 자동화 및 컴퓨터 응용기술연구소) ;
- 정세교 (경상대학교 제어계측공학과, 자동화 및 컴퓨터 응용기술연구소)
- Lim, Cheol-Woo (Dept. of Control & Instrumentation Engineering, Gyeongsang National Universiy) ;
- Park, Nam-Ju (Dept. of Control & Instrumentation Engineering, Gyeongsang National Universiy) ;
- Chung, Se-Kyo (Dept. of Control & Instrumentation Engineering, Gyeongsang National Universiy)
- 발행 : 2000.07.01
초록
This paper deals with the modeling and analysis of the high voltage flyback transformer (HVFBT) often utilized in small-sized high voltage DC power supplies. The parasitic capacitance of th HVFBT with the large turns of the secondary winding causes the undesirable parasitic resonance in the transient state which produces the high current stress and limits the switching frequency of the converter. In order to analyze this phenomenon the equivalent circuit model including the parasitic capacitance is derived and the frequency characteristics are provided. The parasitic resonance in the switching states is also investigated based on this equivalent circuit model. The derived model and analysis is finally validated through the SPICE simulation and experiments.
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