High step‐up dc–dc converter with multi‐winding CL and switched capacitor. Issue 14 (4th October 2018)

• Record Type: Journal Article
• Authors: Ye, Yuanmao; Peng, Wei; Jiang, Bijia
• Is Part Of: IET power electronics. Volume 11:Issue 14(2018)
• Page Start: 2232
• Page End: 2240
• Publication Date: 2018-10-04
• Subjects: DC‐DC power convertors -- inductors -- switched capacitor networks -- stress analysis -- windings -- transistor circuits -- switches; switched capacitor -- coupled‐inductor -- low‐voltage‐rated transistors -- voltage stress -- ideal voltage transfer ratio -- ultra‐high‐voltage gain -- high step‐up DC–DC converter -- prototype converter -- multiwinding CL -- circuit configuration -- switch stress analysis -- power 140.0 W; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2018.5454
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : To achieve a high‐voltage gain, a step‐up converter is developed by integrating coupled‐inductor (CL) and switched capacitor. Low‐voltage‐rated transistors are used to improve the efficiency as the voltage stress on the main switch of the proposed converter is reduced. Circuit configuration, operation principle, ideal voltage transfer ratio and switches' stresses are analysed in detail. The converter's structure can be easily extended for ultra‐high‐voltage gain by increasing the number of windings of the CL. The feasibility of the proposed converter is experimentally demonstrated by a 140 W prototype converter.