Planar transformer
US8164408B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Dec 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F17/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a planar transformer having a dual-bobbin structure. The planar transformer includes a core unit including a pair of cores that are electromagnetically coupled to each other, and a bobbin unit including an inner bobbin part and a board part. The inner bobbin part includes a bobbin body having a predetermined volume and having a through hole into which the core is inserted, and a first winding wound around an outer circumferential surface of the bobbin body, and the board part includes at least one board including a board body having a predetermined surface area and having a through hole into which the inner bobbin part and the core are inserted, and a second winding formed on at least one surface of the board body and causing electromagnetic action with the first winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.