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This paper deals with the modeling and analysis of the high voltage flyback transformer (HVFBT) often utilized m small~sized high voltage DC power supplies, The parasitic capacitance of the 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.
목차
ABSTRACT
1. 서론
2. 고전압 플라이백 변압기 모델
3. 주파수 응답 특성
4. 과도 특성
5. 시뮬레이션과 실험
6. 결론
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UCI(KEPA) : I410-ECN-0101-2009-560-014241981