Inverter transformer
US5812045A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Dec 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/266
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an inverter transformer comprising a primary winding and secondary winding which are wound on a first and a second spool respectively and disposed in juxtaposing relationship.with each other with the axes of the first and second spools being substantially parallel to each other, and a pair of cores which are disposed in abutting relationship to each other so as to define a closed magnetic path, the primary and secondary windings being electromagnetically coupled to each other through the pair of cores, at least one of said cores being provided with a protuberance which is disposed in opposing relationship to the other core, with a small distance maintained therebetween, the protuberance being interposed between the primary winding and the secondary winding, the arrangement is made such that secondary-side minimum sectional area of that portion of the cores through which magnetic flux is permitted to pass, is given substantially by S.sub.1 K, where S.sub.1 is primary-side minimum sectional area of that portion of the cores through which magnetic flux is permitted to pass, and K is the electromagnetic coupling coefficient between the primary winding and the secondary winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.