Balance transformer and backlight apparatus
US7948736B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Dec 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/2827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a balance transformer and a backlight apparatus using the same. The balance transformer comprises a first main coil, a second main coil, a first induction coil, and a conductor. The first main coil has a first contact point and a second contact point, and the second main coil has a third contact point and a fourth contact point. The first induction coil is corresponding to the first main coil and the second main coil. The conductor is then series connected to the first contact point and the fourth contact point. Accordingly, the balance transformer drives the backlight apparatus to light and balances the currents of a plurality of light units of the backlight apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.