Ultra-large gain step-up switched-capacitor DC-DC converter with coupled inductor for alternative sources of energy

Tsorng Juu Liang, Shih Ming Chen, Lung Sheng Yang, Jiann Fuh Chen, Adrian Ioinovici

研究成果: Article同行評審

160 引文 斯高帕斯(Scopus)

摘要

An ultra-large voltage conversion ratio converter is proposed by integrating a switched-capacitor circuit with a coupled inductor technology. The proposed converter can be seen as an equivalent parallel connection to the load of a basic boost converter and a number of forward converters, each one containing a switched-capacitor circuit. All the stages are activated by the boost switch. A single active switch is required, with no need of extreme duty-ratio values. The leakage energy of the coupled inductor is recycled to the load. The inrush current problem of switched capacitors is restrained by the leakage inductance of the coupled-inductor. The above features are the reason for the high efficiency performance. The operating principles and steady state analyses of continuous, discontinuous and boundary conduction modes are discussed in detail. To verify the performance of the proposed converter, a 200 W/20 V to 400 V prototype was implemented. The maximum measured efficiency is 96.4%. The full load efficiency is 95.1%.

原文English
文章編號6174511
頁(從 - 到)864-874
頁數11
期刊IEEE Transactions on Circuits and Systems I: Regular Papers
59
發行號4
DOIs
出版狀態Published - 2012

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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