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	High step-up converter with passive lossless clamp circuit and switched-capacitor: Analysis, design, and experimentation
	He, Liangzong ; Lei, Jiazhi ; He LZ(何良宗)
	2013
关键词	Capacitors Coupled circuits DC-DC converters Electric inductors Gain measurement Power electronics
英文摘要	Conference Name:28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013. Conference Address: Long Beach, CA, United states. Time:March 17, 2013 - March 21, 2013.; Power Sources Manufacturers Association; IEEE Industry Applications Society; IEEE Power Electronics Society; In the paper, a novel high step-up dc-dc converter with coupled-inductor and switched-capacitor is proposed for sustainable energy system. The converter utilizes two-stage switched-capacitors as voltage sources to extend the voltage gain and auto-balance two branches current. Besides, the voltage stress on the main switches is reduced further due to the voltage distributed on the switched-capacitors. The Winding-coupled inductors work in fly-back or forward mode at different operation stages, which extends the voltage gain and make use of the magnetic as possible to improve the power density. The main switches are turned off under zero voltage switching(ZVS) condition because of a passive clamp circuit and turned on under zero current switching (ZCS) condition due to the coupled inductor inherent leakage. Additionally, the diode reverse-recovery problem is alleviated because its current falling rate is controlled by the leakage inductance. Thus, the efficiency can be further improved. Then, the operating principle and performance of the converter are discussed in detail. Finally, a prototype circuit with 20-V input voltage, 200-V output voltage and 300-W output power is implemented to verify the performance of the proposed converter. ? 2013 IEEE.
语种	英语
出处	http://dx.doi.org/10.1109/APEC.2013.6520581
出版者	Institute of Electrical and Electronics Engineers Inc.
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/86127]
专题	物理技术－会议论文
推荐引用方式 GB/T 7714	He, Liangzong,Lei, Jiazhi,He LZ. High step-up converter with passive lossless clamp circuit and switched-capacitor: Analysis, design, and experimentation. 2013-01-01.

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