基于Switch-Capacitor网络的单开关升压变换器

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Abstract In the renewable grid generation system, the traditional Boost converter has a constrained step-up ratio, big ripples and low efficiency. Therefore, a single-switch step-up converter based on the Switch-Capacitor network operationg is proposed, and its corresponding multi-stage single-switch step-up converter is deduced. Working principles and working performances of the converter in continuous operating mode and discontinuous operating mode are respectively given. An experimental model is built and its results indicates: ①Not increasing the voltage stress of semiconductor devices, these converters’ boost capability enhances as the number of Switch-Capacitor networks in series increases; ②small input-current ripple and output-voltage ripple; ③Since only one switch is needed in the converter, its control circuit is simple; ④Based on the parity of the number of Switch-Capacitor networks in series, the polarity of output-voltage can be changed, which expands its range of application.

Key words： single-switch step-up ratio voltage stress ripple polarity

Received: 24 May 2013 Published: 25 March 2014

PACS:

TM464

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	Articles by authors
	Hou Shiying
	Chen Jianfei
	Sun Tao
	Zhang Lishuai
	Zou Xuewei

Cite this article:

Hou Shiying,Chen Jianfei,Sun Tao等. A Single-Switch Step-up Converter Based on Switch-Capacitor Network[J]. Transactions of China Electrotechnical Society, 2013, 28(10): 206-216.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I10/206

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