전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2018년도 전력전자학술대회
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- Pages.18-20
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- 2018
New Active Snubber Cells for High Step-up Interleaved DC-DC Converters
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- Kim, Seon-Ju (Seoul National University of Science and Technology) ;
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- Jeong, Hyeon-Ju (Seoul National University of Science and Technology) ;
- Choe, Se-Wan (Seoul National University of Science and Technology)
- 발행 : 2018.07.03
초록
This paper proposes a new pair of Active Snubber Cells (ASCs) which can fully provide soft switching for a Floating-output Double Boost Converter (FDBC). Besides that, the introduced ASCs are applicable for all basic DC-DC converters. Main switches of the FDBC turn on and off with ZVS. However, the main diodes are ZCS turned off. Furthermore Snubber switches are turned on and off with ZCS and ZVS respectively. It worthy to mention also that the soft switching for snubber diodes of the presented cells is achieved. A 1.5kW, 100kHz prototype of the FDBC with the proposed ASCs was built and evaluated; and the maximum attained efficiency is 97.3%.
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