Transformer
US7982576B2 · kind B2 · utility
22Cited by
20References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Mar 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/2819
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transformer includes a first electrical conductor, a second electrical conductor and a core. The second electrical conductor is electromagnetically coupled with the first electrical conductor. The second electrical conductor includes at least one multilayer spiral coil, which is formed by winding a conductive wire and has a through hole at its central portion. Both ends of the conductive wire extend outward from a periphery of the multilayer spiral coil. The core penetrates through the through hole and covers at least one portion of the first electrical conductor and the second electrical conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.