Battery charging apparatus with planar inductive charging platform
US8040103B2 · kind B2 · utility
94Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2006 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Nov 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/2804
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charging apparatus comprises an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed, and a first winding for generating lines of magnetic flux generally perpendicular to the charging surface. To compensate for voltage sag caused by a reduction in the flux generated by the first winding, a second winding is located within an area defined by the first winding for generating an auxiliary magnetic flux generally perpendicular to the charging surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.