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

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Author(s)

Abstract

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.

Journal

  • Journal of the Japan Society of Powder and Powder Metallurgy

    Journal of the Japan Society of Powder and Powder Metallurgy 49(3), 211-217, 2002-03-15

    Japan Society of Powder and Powder Metallurgy

References:  16

Codes

  • NII Article ID (NAID)
    10008007602
  • NII NACSIS-CAT ID (NCID)
    AN00222724
  • Text Lang
    JPN
  • Article Type
    REV
  • ISSN
    05328799
  • NDL Article ID
    6126553
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-274
  • Data Source
    CJP  NDL  J-STAGE 
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