Some Design Considerations for Coupled Inductors for Integrated Buck-Boost Converters

Proceedings of the 3rd IEEE International Conference on Power Engineering, Energy and Electrical Drives (PowerEng2011) 2011
Jānis Zaķis, Dmitri Vinnikov, Lauris Bisenieks

This paper presents some design considerations for magnetically coupled inductors in buck-boost converters for distributed power generation. As compared to the conventional approach, the proposed integrated magnetic structure with coupled inductors enables reduction in core loss, core size, winding losses and in the number of turns. This paper discusses rough and simple design of the coupled inductor to achieve desired objectives. The methodology for the selection of inductance, core geometry, number of turns, air gap and isolation is described. In addition, general operation principles and conditions for the continuous conduction mode (CCM) and the discontinuous conduction mode (DCM) are presented. In order to verify the theoretical assumptions a prototype has been built. The experimental results are presented and discussed.

Keywords
DC/DC converter, CCM, DCM, Coupled inductor, qZSI
DOI
10.1109/PowerEng.2011.6036465
Hyperlink
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6036465

Zaķis, J., Vinnikov, D., Bisenieks, L. Some Design Considerations for Coupled Inductors for Integrated Buck-Boost Converters. In: Proceedings of the 3rd IEEE International Conference on Power Engineering, Energy and Electrical Drives (PowerEng2011), Spain, Malaga, 11-13 May, 2011. Piscataway: IEEE, 2011, pp.1-6. ISBN 978-1-4244-9845-1. e-ISBN 978-1-4244-9843-7. ISSN 2155-5516. Available from: doi:10.1109/PowerEng.2011.6036465

Publication language
English (en)