Apparatus for wireless device charging using radio frequency (RF) energy and device to be wirelessly charged
US9236756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2012 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for wireless charging using radio frequency (RF) energy includes a first charger portion having first and second charging areas. The first and second charging areas are located in a common plane, each having at least one coil for wirelessly charging a charge-receiving device placed in proximity thereto. The coils include respective windings, which are wound in opposing directions, each coil being connected in series, each coil configured to charge at least one charge-receiving device. A second charger portion has a third charging area having at least one coil including a winding for wirelessly charging a charge-receiving device placed in proximity to the third charging area, the coil in the third charging area being connected in series with the coils in the first and second charging areas, the third charging area located in a plane that is orthogonal to the plane of the first and second charging areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.