高出力圧電セラミックトランスの開発 Development of High Power Piezoelectric Transformers

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抄録

Low-profile inverter power sources are increasingly required for backlight systems of liquid crystal display. A great deal of attention has been focused on the application of miniaturized transformers to such power sources. The output performance of piezoelectric transformers, which operate in the third order longitudinal vibration mode with dimensions of l 42 mm×w 5.5 mm×t 1.4 mm, was studied. The piezoelectric ceramic material: 0.05Pb(Mn<SUB>1/3</SUB>Sb<SUB>2/3</SUB>)O<SUB>3</SUB>-0.48PbZrO<SUB>3</SUB>-0.47PbTiO<SUB>3</SUB> was employed for these transformers. The values of efficiency for the transformers reach maximum when connecting a load resistance of around 100 kΩ which is assumed to be that of a cold cathode fluorescent lamp. The transformer with seven ceramic layers in the driver section, generates an output power of 3 W and shows the step-up voltage ratio over 60.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 49(3), 211-217, 2002-03-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10008007602
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    05328799
  • NDL 記事登録ID
    6126553
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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