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High Efficiency Step-Down Flyback Converter Using Coaxial Cable Coupled-Inductor
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  • Journal title : Journal of Power Electronics
  • Volume 13, Issue 2,  2013, pp.214-222
  • Publisher : The Korean Institute of Power Electronics
  • DOI : 10.6113/JPE.2013.13.2.214
 Title & Authors
High Efficiency Step-Down Flyback Converter Using Coaxial Cable Coupled-Inductor
Kim, Do-Hyun; Park, Joung-Hu;
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 Abstract
This paper proposes a high efficiency step-down flyback converter using a coaxial-cable coupled-inductor which has a higher primary-secondary flux linkage than sandwich winding transformers. The structure of the two-winding coaxial cable transformer is described, and the coupling coefficient of the coaxial cable transformer and that of a sandwich winding transformer are compared. A circuit model of the proposed transformer is also obtained from the frequency-response curves of the secondary short-circuit and of the secondary open-circuit. Finally, the performance of the proposed transformer is validated by the experimental results from a 35W single-output flyback converter prototype. In addition, the proposed two-winding coaxial transformer is extended to a multiple winding coaxial application. For the performance evaluation of the extended version, 35W multi-output hardware prototype of the DC-DC flyback converter was tested.
 Keywords
Coaxial winding;Coupled-inductor;Flyback converter;High efficiency;Multi-output;
 Language
English
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Bidirectional Power Conversion of Isolated Switched-Capacitor Topology for Photovoltaic Differential Power Processors, Journal of Power Electronics, 2016, 16, 5, 1629  crossref(new windwow)
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