Inductively powered apparatus
US7118240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2005 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Feb 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.