대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2009년도 춘계학술대회 논문집 에너지변화시스템부문
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- Pages.156-160
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- 2009
인터리브 방식을 이용한 액티브 클램핑 포워드 컨버터에 관한 연구
A Study on the Interleaved Active-Clamping Forward Converter
- Jung, Jae-Yeop (Dongguk University) ;
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Kim, Yong
(Dongguk University) ;
- Kwon, Soon-Do (DaeLim College) ;
- Bae, Jin-Yong (KIPO) ;
- Lee, Dong-Hyun (Dongguk University)
- 발행 : 2009.04.23
초록
This paper presents the interleaved active-clamping ZVS(Zero Voltage Switching) forward converter, which is mainly composed of two active-clamping forward converters. Only two switches are required, and each one is the auxiliary switch for the other. The circuit complexity and cost are thus reduced. The leakage inductance of the transformer or an additional resonant inductance is employed to achieve ZVS during the dead times. The duty cycles are not limited to be equal and within 50%. The complementary switching and the resulted interleaved output inductor currents diminish the current ripple in output capacitors. Accordingly, the smaller output chokes and capacitors lower the converter volume and increase the power density. Detailed analysis and design of this new interleaved active-clamping forward converter are described.
키워드