• DocumentCode
    1509478
  • Title

    Fine grained ferrite for low profile transformer

  • Author

    Yamamoto, Y. ; Makino, A. ; Yamaguchi, T. ; Sasada, I.

  • Author_Institution
    Central Res. Lab., Alps Electr. Co. Ltd., Nagaoka, Japan
  • Volume
    33
  • Issue
    5
  • fYear
    1997
  • fDate
    9/1/1997 12:00:00 AM
  • Firstpage
    3742
  • Lastpage
    3744
  • Abstract
    A Mn-Zn ferrite with fine grain size and low core loss at 0.5 to 2 MHz was developed, and a conductor-embedded-type planar transformer was made using the developed ferrite. The Bm·f value in the loss level of 400 kW m-3 of the developed ferrite at f=1 MHz is 2.2 times larger than that of the commercial ferrite. The efficiency and the output power of the conductor-embedded-type planar transformer were 91% and 1.8 W, respectively
  • Keywords
    eddy current losses; ferrites; grain size; magnetic leakage; manganese compounds; transformer cores; zinc compounds; 0.5 to 2 MHz; 1.8 W; 91 percent; Mn-Zn ferrite; Mn0.72Zn0.16Fe2.12O4; conductor-embedded-type planar transformer; efficiency; fine grain size; fine grained ferrite; loss level; low core loss; low profile transformer; output power; Conducting materials; Core loss; Extraterrestrial measurements; Ferrites; Grain size; Microstructure; Powders; Power supplies; Switching frequency; Transformer cores;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.619557
  • Filename
    619557
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1509478