전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2015년도 전력전자학술대회 논문집
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- Pages.285-286
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- 2015
고효율 서버용 전원 장치를 위한 하프-브리지 LLC 컨버터의 공진 커패시터 온-오프 제어
Resonant Capacitor On/Off Control of Half-Bridge LLC Converter for High Efficiency Server Power Supply
- Lee, Jae-Bum (Korea Advanced Institute of Science and Technology (KAIST)) ;
- Baek, Jae-Il (Korea Advanced Institute of Science and Technology (KAIST)) ;
- Youn, Han-Shin (Korea Advanced Institute of Science and Technology (KAIST)) ;
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Moon, Gun-Woo
(Korea Advanced Institute of Science and Technology (KAIST))
- 발행 : 2015.07.07
초록
In this letter, a simple control method of the HB LLC converter with one additional switch and capacitor in the primary side is proposed for wide-input-voltage applications with the hold-up time conditions. At nominal input, since the proposed method enables the HB LLC converter to operate with large transformer magnetizing inductance, it can reduce the conduction and switch turn-off losses in the primary side, which makes a high efficiency. On the other hand, during the hold-up time, since the proposed method increases the resonant capacitance by turning on one additional switch, the HB LLC converter can obtain high voltage gain.
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