대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2007년도 제38회 하계학술대회
- /
- Pages.1108-1110
- /
- 2007
슬림형 어댑터용 하프 브리지 공진형 컨버터
LLC Half Bridge Resonant Converter for Slim type Adapter
- Shin, Yong-Hee (Dept. of Electrical Eng. Mokpo National University) ;
- Hwang, Gook-Hwa (Dept. of Electrical Eng. Mokpo National University) ;
-
Kim, Chang-Sun
(Dept. of Electrical Eng. Mokpo National University) ;
- Lee, Chul-Kyung (Smart Power Solution (SPS) Inc.) ;
- Youn, Dae-Young (Smart Power Solution (SPS) Inc.)
- 발행 : 2007.07.18
초록
The resonant converters cause the high voltage stress according to the input voltage, which increases the conduction loss in converter power switches. The topology of LLC half bridge resonant converter provides ZVS characteristic and also the stress of voltage and current is smaller than that of the general resonant converters. So we can expect the higher efficiency. In this paper, the LLC resonant converter is designed for slim adapter. In the adapter design, we should consider the weight, the size and overheat of the adapter. Thus the optimal design of transformer is the most important facts. Some parameters should be considered in order to get the highest efficiency. The LLC resonant converter input is 390VDC Link voltage of PFC and the output has 16VDC/90W ratings. The efficiency measured is about up to 93%.
키워드