낮은 도통손실을 가지며 넓은 영전압 스위칭 범위를 갖는 두 개의 변압기를 이용한 능동 클램프 포워드 컨버터

Abstract

Conventional active-clamp forward converter has narrow ZVS range of main switch. Although utilizing high magnetizing current can realize wide ZVS range, it increases the conduction loss. To solve this problem, a new asymmetric two-transformer active clamp forward converter is proposed. Proposed converter achieves wide ZVS range without severe conduction loss penalty, which results in high efficiency and high power density.