Localized charging, load identification and bi-directional communication methods for a planar inductive battery charging system
US7915858B2 · kind B2 · utility
108Cited by
5References
25Claims
0Family size
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Key dates
| Filing date | Oct 30, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jun 6, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/0073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and principles are described for systematizing localized charging, load identification and bi-directional communication in a planar battery charging system. Also described is control circuitry for selectively energizing a primary winding when a load is placed on the platform. The optimization of the size of the receiver winding compared to the transmitter winding is discussed, while the associated communication methods include techniques for load identification, compatibility checks, hand-shaking and communication of charging status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.