Piezoelectric transformer with pinwheel type electrode

Details Piezoelectric transformer with pinwheel type electrode Piezoelectric transformer with pinwheel type electrode

2011-04-26

2011-04-26

Dougherty, Thomas M (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S366000, C310S369000

Reexamination Certificate

active

07932663

ABSTRACT:
Disclosed herein is a piezoelectric transformer having a pinwheel-type electrode. The piezoelectric transformer of the present invention includes a body, an upper electrodes and a lower electrode. The body is formed in a circular planar shape and is made of a piezoelectric material. The upper electrodes are formed to be adjacent to one of first and second planes corresponding to upper and lower surfaces of the body, formed in the same planar shape as that of the body, and formed to be separated in the shape of a pinwheel. In the upper electrodes, input voltage is applied to some of separate electrodes, and output voltage is obtained from the remaining electrodes. The lower electrode is adjacent to a plane opposite the plane on which the upper electrode is formed, the lower electrode being formed in the same planar shape as that of the body.

REFERENCES:
patent: 2945984 (1960-07-01), Yando
patent: 3114849 (1963-12-01), Poschenrieder
patent: 5861704 (1999-01-01), Kitami et al.
patent: 7038358 (2006-05-01), Bryant et al.

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