Patent ID: 6426585
Filing Date: 2002-07-30
Classification: H01L

Abstract:
A piezoelectric transformer comprising:a primary-side piezoelectric member having a polarization applied in a thickness direction of said primary-side piezoelectric member or a polarization applied in a length direction of said primary-side piezoelectric member, said primary-side piezoelectric member comprising an input terminal for receiving an input voltage; a first secondary-side piezoelectric member having a polarization applied in a thickness direction of said first secondary-side piezoelectric member or a polarization applied in a length direction of said first secondary-side piezoelectric member, said first secondary-side piezoelectric member being laminated to one side of said primary-side piezoelectric member, said first secondary-side piezoelectric member being laminated in the thickness direction of said primary-side piezoelectric member and a thickness direction of said first secondary-side piezoelectric member, or in the length direction of said primary-side piezoelectric member and a length direction of said first secondary-side piezoelectric member, said first secondary-side piezoelectric member being operable to generate an alternating voltage, said first secondary-side piezoelectric member comprising first output terminals for outputting the alternating voltage generated by said first secondary-side piezoelectric member; and a second secondary-side piezoelectric member having a polarization applied in a thickness direction of said second secondary-side piezoelectric member or a polarization applied in a length direction of said second secondary-side piezoelectric member, said second secondary-side piezoelectric member being laminated to another side, opposite to said one side, of said primary-side piezoelectric member, said second secondary-side piezoelectric member being laminated in the thickness direction of said primary-side piezoelectric member and a thickness direction of said second secondary-side piezoelectric member, or in the length direction of said primary-side piezoelectric member and a length direction of said second secondary-side piezoelectric member, said second secondary-side piezoelectric member being operable to generate an alternating voltage, said second secondary-side piezoelectric member comprising second output terminals for outputting the alternating voltage generated by said second secondary-side piezoelectric member.