一种新型双输入反激DC/DC变换器

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Abstract The traditional multiple-input flyback converter has a simple configuration, and it can be used in the system with two or more sources. It has a good application prospect in the low/medium power situation. However, the converter has some disadvantages such as complex transformer structure due to multiple primary windings, higher voltage stresses across the power switches, and the load can’t achieve power from a variety of energy sources simultaneously. This paper proposes a novel multiple-input flyback converter. The transformer has only one primary winding and the voltage stresses of the power switches are reduced. All the input sources can provide energy simultaneously or individually. A double-input flyback DC/DC converter is taken as an example to analyse its operating principle in detail. The voltage conversion ratio of the input and output voltage is deduced. Power management method of the proposed converter is proposed. Furthermore, a family of multiple-input isolated DC/DC converters is deduced. The experimental results of a 120W prototype verify the correction of the theoretical analysis and the effectiveness of the control strategy.

Key words： Multiple-input flyback converter combined sources power system new energy

Received: 10 January 2010 Published: 07 March 2014

PACS:

TM215.4

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	Articles by authors
	Wang Qin
	Zhang Jie
	Ruan Xinbo
	Jin Ke

Cite this article:

Wang Qin,Zhang Jie,Ruan Xinbo等. A New Double-Input Flyback DC/DC Converter[J]. Transactions of China Electrotechnical Society, 2011, 26(2): 115-122.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I2/115

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