Piezoelectric transformer with pinwheel type electrode
US7932663B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 11, 2007 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Apr 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/87
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.