Inductive battery charger system with primary transformer windings formed in a multi-layer structure
US7164255B2 · kind B2 · utility
288Cited by
12References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Dec 10, 2024 |
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.