지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 2,906 - 2,911 (6page)
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초록· 키워드
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One of the important functions of AC/DC converters is to supply a stable output DC voltage to electronic equipment even if momentary power outages occur. During the momentary power outage, the power is supplied from the storage capacitor of a PFC circuit to load through an isolated converter. Therefore very large capacitors should be necessary to compensate during interruption of AC power. Furthermore, because the storage capacitor voltage decreases according to discharge of the storage energy, the isolated converter should be necessary to design corresponding to a wide input voltage range. This causes increasing the power loss and volume of the isolated converter. This paper proposes a two-phase PFC circuit for keeping a constant output-voltage even under momentary power outages. When the momentary power outage occurs, the proposed PFC circuit operates as a boost regulator in order to keep the constant output voltage. This circuit is simple topology in which a diode and a mode change switch are added to a conventional two-phase PFC circuit. Effectiveness of the proposed PFC circuit is tested by a simulation and an experiment.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. PROBLEMS OF AC/DC CONVERTER
Ⅲ. CIRCUIT PRINCIPLE
Ⅳ. SIMULATION RESULTS
Ⅴ. EXPERIMENTAL RESULTS
Ⅵ. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
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