Analysis of the Flyback Converter Utilizing a Transformer with Stepped Air-Gap
Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2016
Pages: 8Language: englishTyp: PDF
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Authors:
Mantzanas, Panagiotis; Kuebrich, Daniel; Barwig, Markus; Duerbaum, Thomas (Chair of Electromagnetic Fields, University of Erlangen-Nuremberg, Germany)
Abstract:
Saturable inductors are employed in various power electronics applications. For instance, ref. [1] deals with the use of a stepped air-gap inductor in a Buck converter leading to increased efficiency. This paper demonstrates the analytical calculation of the flyback converter with a stepped air-gap transformer, which enables a first estimation of converter losses. Thus, the influence of a stepped air-gap transformer on converter efficiency can be examined. Measurements have confirmed that this innovative topology leads to a total loss reduction of up to 6.4%. Consequently, the efficiency can be increased noticeably in comparison to a conventional flyback converter.