Transformer for balancing currents
US7755299B2 · kind B2 · utility
2Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Dec 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a transformer (10) for balancing the current in an AC circuit, comprising a primary winding (12), a secondary winding (14) and a main inductance (16). The transformer is characterized in that a capacitive component is connected in parallel to the primary winding (12) or to the secondary winding (14), whose capacitance value is determined such that the reactive current IL brought about by the main inductance (16) is substantially compensated. A transformer of this kind can preferably be employed in current balancing circuits as used, for example, in systems for backlighting LCD displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.