Piezoelectric transformer unit

Details Piezoelectric transformer unit Piezoelectric transformer unit

1998-06-17

2000-05-02

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310348, H01L 4108

Patent

active

060576332

ABSTRACT:
In order to achieve the above and other objects, a piezoelectric transformer unit is provided. The unit contains a piezoelectric transformer element, a first upper electrode, a first lower electrode, an insulator casing, a first lead terminal, and an insulator elastic member. The piezoelectric transformer element has a upper element surface, a lower element surface, and a first side element surface. The first upper electrode is formed on the upper element surface of the piezoelectric transformer element, and the first lower electrode is formed on the lower element surface of the piezoelectric transformer element. The insulator casing houses the piezoelectric transformer element. The first lead terminal protrudes from an inner surface of the insulator casing, supports the piezoelectric transformer element within the insulator casing, and vertically presses the an oscillation nodal point of the piezoelectric transformer element. The insulator elastic member is arranged between an oscillation nodal point on one of the upper, lower, and first side element surfaces of the piezoelectric transformer element and the insulator casing.

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M. Sugimoto et al., "Very Compact Inverter for Color LCD Backlight Utilizing a Packaged Piezolectric Ceramic Transformer", SID 96 Digest, 1996, pp. 757-760 No Month.
Kawashima et al., "Development of Color-LCD Backlight Inverters Utilizing Piezoelectric Transformer", NEC Res. & Develop., vol. 36, No. 1, Jan. 1995, pp. 187-192.

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