MAGNETIC POWER CONTROLLER OF AMORPHOUS CORES FOR A 200 kHz SWITCHING REGULATOR.

R. Hiramatsu, K. Harada, I. Sasada

研究成果: Contribution to journalArticle査読

13 被引用数 (Scopus)

抄録

A half-wave pulsewidth modulation (PWM) control device based on the principle of the half-wave magnetic amplifier has interesting characteristics for controlling a high frequency switching regulator. It is called a magnetic power controller. By using magnetic power controller of an amorphous core having a highly rectangular dynamic hysteresis loop and using a self-oscillating inverter, a highly reliable 200kHz switching regulator is realized, in which the current surge caused by the reverse recovery of the diode is suppressed by the surge suppresion characteristic of the magnetic power controller. The efficiency of this switching regulator is higher than 80% for an input voltage of 110 plus or minus 20v and for an output power of 98w (5v, 10A and 24v, 2A). Peak to peak voltage of the switching nosie observed in the output voltage is as small as 10mv under the above condition. The amorphous core used is of a Co-rich system with approximately zero magnetostriction.

本文言語英語
ページ(範囲)1764-1766
ページ数3
ジャーナルIEEE Transactions on Magnetics
Mag-18
6
出版ステータス出版済み - 11 1982
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子工学および電気工学
  • 物理学および天文学(その他)
  • 電子材料、光学材料、および磁性材料

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