Wireless power transfer device for charging mobile/portable devices
US9281701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | May 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charging system having a charging device with a groove for receiving a mobile/portable device for charging is provided having a magnetic core located in a housing of the charging device with the magnetic core having a base and two legs that are located around the groove. A coil is wrapped around the base and a driver circuit is connected to the coil as well as to an external power source. A power receiver is located in a mobile/portable device that can be placed in the groove in the charging device. The power receiver includes a receiver magnetic core as well as a receiving coil wrapped around the receiver magnetic core for receiving an inductive current from the charging device. A charging circuit is connected to the receiving coil and adapted to be connected to the battery of the mobile/portable device for charging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.