Multiphase Interleaved DC-DC Converter with Directly and Inversely Coupled Inductors

2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON 2016): Proceedings 2016
Kaspars Kroičs, Jānis Zaķis

The main advantages of the interleaved multiphase DC-DC converters over single-phase converters are reduced current stress and reduced output current ripple. However, inductor current ripple can not be reduced only by interleaving method. The integrated magnetic structure can be used to solve this problem and this also allows to achieve higher power density. In this paper application of combination of the 2-phase directly coupled inductor and 2-phase inversely coupled inductor is analyzed to developed 4-phase interleaved DC-DC converter and compared with using of separate auxiliary inductor. The prototype of the converter has been built. The experimental results of the current ripple are presented in the paper.

Keywords
DC-DC power converters; multiphase switching converters; integrated magnetics
DOI
10.1109/RTUCON.2016.7763102
Hyperlink
http://ieeexplore.ieee.org/document/7763102/

Kroičs, K., Zaķis, J. Multiphase Interleaved DC-DC Converter with Directly and Inversely Coupled Inductors. In: 2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON 2016): Proceedings, Latvia, Riga, 13-14 October, 2016. Piscataway: IEEE, 2016, pp.344-350. ISBN 978-1-5090-3732-2. e-ISBN 978-1-5090-3731-5. Available from: doi:10.1109/RTUCON.2016.7763102

Publication language
English (en)