인터리브드된 전류 주입형 고승압 DC-DC 컨버터
Interleaved Current-fed High Step-up DC-DC Converter
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참고문헌
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초록
본 논문에서는 인터리브된 전류 주입형 고승압 DC-DC 컨버터가 제안된다. 높은 전압 이득 외에도 인터리빙 방식을 채택하여 낮은 리플 입력 전류가 달성된다. 또한 제안 된 컨버터의 소프트 스위칭 특성은 전력 스위치의 스위칭 손실을 줄이고변환 효율을 높인다. 변압기의 누설 인덕턴스를 활용하여 다이오드의 전류 변화율을 제어함으로써 출력 정류기의 역 회복 문제도 완화된다. 200W 프로토 타입에서 얻은 실험 결과에 대해 설명한다.
Abstract
An interleaved current-fed high step-up DC-DC converter is proposed. Besides high voltage gain, a low ripple inputcurrent is achieved by adopting interleaving operation. Moreover, soft-switching characteristic of the proposed converterreduces switching losses of active power switches and raise the conversion efficiency. The reverse-recovery problem ofoutput rectifiers is also alleviated by controlling the current changing rates of diodes by utilizing the leakage inductancesof transformers. Experimental results obtained on a 200W prototype are discussed.
참고문헌 (13)
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