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Title
Japanese: 
English:Reducing output current ripple of resonant switched-capacitor step-up converter with interleaving technique 
Author
Japanese: 佐野 憲一朗, 新井 卓郎, 藤田 英明.  
English: Kenichiro Sano, Takuro Arai, Hideaki Fujita.  
Language English 
Journal/Book name
Japanese: 
English:International Power Electronics Conference - ECCE Asia -, IPEC 2010 
Volume, Number, Page         pp. 1635-1641
Published date June 2010 
Publisher
Japanese:電気学会 
English:IEEJ 
Conference name
Japanese: 
English:International Power Electronics Conference - ECCE Asia -, IPEC 2010 
Conference site
Japanese: 
English: 
Official URL https://ieeexplore.ieee.org/document/5544632/
 
DOI https://doi.org/10.1109/IPEC.2010.5544632
Abstract This paper deals with a reduction method of output current ripples in a resonant switched-capacitor converter (RSCC) by applying an interleaving technique. Two RSCCs are connected in parallel and operated with their switching waveforms displaced by a half of the switching period. Application of a phase-shift control method to the RSCCs enables not only an equal current sharing between the RSCCs but also a great reduction of the current ripples in both input and output terminals. Theoretical analysis of the current ripples reveals that the interleaving operation can reduce the current ripple less than 45% of that in a conventional synchronous operation. Experimental results show the viability of the interleaving operation, and confirm the reduction effect in the output current ripples as well as the power loss in the RSCC.

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