상세 보기
초록
In this article, we present filterless single-stage resonant ac/dc converter. By using the push-pull transformer itself, with the primary-side switching modulation fixed at 0.5, the proposed ac/dc converter accomplishes theoretically zero input-current ripple and so does not need the extra input filter. Semi-bridgeless configuration reduces the conduction loss associated with an input full-bridge diode rectifier. The resonant neutral-point-clamped (NPC) structure much reduces the voltage stress at secondary-side active power components; this aspect enables use of inexpensive low-voltage-rated active power components. Therefore, the proposed converter features low cost, high power density, and high efficiency. A prototype with 1-kW output power is implemented to verify the superior properties of the proposed ac/dc converter. © 2023 The Korean Institute of Power Electronics.
키워드
- 제목
- Filter-less Single-Stage Resonant AC/DC Converter Employing Push-Pull Transformer
- 저자
- Kim, Myeong-Hwan; Park, Jae-Woong; Bai, Changkyu; Moon, Dongok; Jung, An-Yeol; Kim, Minsung
- 발행일
- 2023-08
- 유형
- Conference paper
- 저널명
- ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics
- 페이지
- 587 ~ 592