Rechargeable battery powered portable electronic device
US7872445B2 · kind B2 · utility
111Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2009 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Jun 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a planar inductive battery charging system designed to enable electronic devices to be recharged. The system includes a planar charging module having a charging surface on which a device to be recharged is placed. Within the charging module and parallel to the charging surface is at least one and preferably an array of primary windings that couple energy inductively to a secondary winding formed in the device to be recharged. The invention also provides secondary modules that allow the system to be used with conventional electronic devices not formed with secondary windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.