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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 1,848 - 1,855 (8page)
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초록· 키워드
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Symmetric half-bridge (SHB) converter has been widely used in PC power supply application since it has no DC offset of magnetizing current and it has symmetric device stress. However, it is difficult for SHB converter to get high efficiency due to significant switching loss. To solve this problem, a variety of Zero-Voltage Switching (ZVS) half-bridge converters have been proposed including an asymmetric half-bridge (AHB) converter. They can reduce switching loss with ZVS. However, ZVS half-bridge converters have serious voltage oscillation problem across the secondary rectifier, which would require the snubber circuit. This oscillation is increasingly severe when large resonant inductance is used for wide ZVS range. The proposed converter solves this problem by separating resonant inductance for ZVS from resonance with the rectifier junction capacitance. It reduces energy dissipation on snubber and decreases conduction loss on rectifier. In addition, it has wide ZVS range with series-connection of main switches. Operational principle and analysis of the proposed converter are presented and confirmed by experimental results of a 240W prototype.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. Proposed Converter
Ⅲ. Features Comparison
Ⅳ. Experimental Results
Ⅴ. CONCLUSIONS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2013-560-000301324