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Publikováno v:
Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1997, 07 (C1), pp.C1-129-C1-130. ⟨10.1051/jp4:1997142⟩
Journal de Physique IV Proceedings, EDP Sciences, 1997, 07 (C1), pp.C1-129-C1-130. ⟨10.1051/jp4:1997142⟩
Recently, the operating frequency of switching mode power supplies has been increased from 25 kHz to several MHz to enhance their efficiency in a smaller size. Although, it was reported that Mn-Zn ferrites can also be used at 1 MHz, only few papers h