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A Non-isolated DC-DC Converter with High Step-up Ratio and Wide ZVS Range  

Park, Sung-Sik (서울산업대 제어계측공학과)
Choi, Se-Wan (서울산업대 제어계측공학과)
Choi, Woo-Jin (숭실대 전기공학부)
Lee, Kyo-Beum (아주대 전자공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.14, no.4, 2009 , pp. 315-322 More about this Journal
Abstract
In the conventional boost converter, the actual duty cycle is limited as the output voltage increases due to increased voltage and current stress of the switch and diode and voltage surge caused by diode reverse recovery. In this paper a new non-isolated boost converter suitable for high gain applications is proposed. The proposed converter has voltage gain of around 6 when the duty cycle is 0.5. Since ZVS is achieved under CCM, the proposed converter has wide ZVS range. Also, voltage ratings of switch and diode are the same as one third of output voltage, and ratings of input and output passive components are reduced due to the interleaving. In addition voltage surge caused by diode reverse recovery is negligible due to ZCS turn-off of diodes. Operating principle of the proposed converter is described and validated through theoretical analysis, simulation and experiment.
Keywords
Non-isolated Boost Converter; Interleaving; High step-up Ratio; ZVS; ZCS; High Power; Voltage Doubler;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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