• DocumentCode
    889457
  • Title

    A new planar microtransformer for use in micro-switching converters

  • Author

    Mino, Masato ; Yachi, Toshiaki ; Tago, Akio ; Yanagisawa, Keiichi ; Sakakibara, Kazuhiko

  • Author_Institution
    NTT Interdisciplinary Res. Lab., Tokyo, Japan
  • Volume
    28
  • Issue
    4
  • fYear
    1992
  • fDate
    7/1/1992 12:00:00 AM
  • Firstpage
    1969
  • Lastpage
    1973
  • Abstract
    A planar microtransformer for use in microswitching converters of portable equipment is described. This microtransformer, consisting of planar coils and CoZrRe amorphous magnetic layers on a Si substrate, is fabricated by a dry process. It is about 0.3-mm thick, and 3×4 mm 2. Its coils provide a relatively high inductance of 33 nH/mm 2. This microtransformer is implemented in a forward converter, which operates well at 32 MHz
  • Keywords
    inductors; power convertors; power integrated circuits; transformer cores; 32 MHz; 5 to 40 MHz; CoZrRe amorphous magnetic layers; Si substrate; dry process; micro-switching converters; planar microtransformer; portable equipment; Amorphous magnetic materials; Amorphous materials; Coils; Fabrication; Frequency conversion; Ion beams; Sputter etching; Sputtering; Switching converters; Wounds;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.144755
  • Filename
    144755
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=889457