Dimensioning and Testing Planar Inductors for High Frequency Operation
Conference: PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/16/2017 - 05/18/2017 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2017
Pages: 5Language: englishTyp: PDF
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Authors:
Delette, Gerard; Frajer, Gaella; Rado, Cyril; Perichon, Pierre; Servant, Florence (Université Grenoble Alpes, CEA-LITEN, France)
Chazal, Herve (Université Grenoble Alpes, G2Elab, France)
Isnard, Olivier (Université Grenoble Alpes, CNRS, France)
Abstract:
Power converters require passive magnetic components which represent up to 40 % of the total cost and volume. Rise in the operating frequency brought by wide gap semi-conductors such as GaN allows a drastic decrease in the size of inductor providing that effects of power losses are controlled. Two complementary approaches are investigated for that purpose: (i) reduction of intrinsic power losses thanks to a favorable microstructure and (ii) shaping of magnetic cores integrating a thermal management. Tape casted inductors made of NiZn spinel ferrite with large thermal exchange capability have been successfully dimensioned and tested up to 5 MHz.