한국자기학회지 (Journal of the Korean Magnetics Society)

  • 제5권5호
  • /
  • Pages.606-609
  • /
  • 1995
  • /
  • 1598-5385(pISSN)
  • /
  • 2233-6648(eISSN)
한국자기학회 (The Korean Magnetics Society)
권호 표지

MAGNETIC PROPERTIES OF FERRITE CORES UNDER DC-BIASED FIELD

  • Fukunaga, H. (Department of Electrical Engineering and Computer Science, Nagasaki University) ;
  • Masumoto, S. (Department of Electrical Engineering and Computer Science, Nagasaki University) ;
  • Ohta, Y. (Matsushita Electric Works, Ltd.) ;
  • Kakehashi, H. (Matsushita Electric Works, Ltd.) ;
  • Ogasawara, H. (Matsushita Electric Works, Ltd.)
  • 발행 : 1995.10.01
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초록

Ferrite cores are often magnetized under DC-biased field because they have been intensively used in electronic circuits such as an inverter circuit and a switching regulator circuit. Thus we investigated the effects of DC-biased field on magnetic properties in the frequency range of DC-100kHz for two kinds of ferrite cores, TDK PC38 and TDK $H_{3}S$, which have different shapes of B-H loop from each other. The magnetic loss per cycle, W/f, in the $H_{3}S$ core decreased with increasing the strength of DC-biased field, although W/f in the PC38 core increased monotonically with DC-biased field. The observed decreasing tendency differs from the previous result for Si-Fe and ferrite cores, and can be attributed to decrease in eddy current loss as well as that in hysteresis loss.

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참고문헌

  1. J. Magn. Magn. Mater. v.19 S.Wada;T.Yagisawa
  2. Proc. of 6th Int. Conf. on Ferrites, Tokyo and Kyoto Japan,1992 Murasato,W.Ohashi;K.Watanave;N,Okumura