Wireless charger for electronic device
US9667085B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Oct 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless charger for an electronic device is provided, which includes one or more charge cells formed by one or more structures of transmitting inductance coils, each of the charge cells receiving an electronic device, and an electric power supply circuit of transmitting coils. The transmitting coils surround the charge cells on at least two sides, respectively, and generate a uniformly distributed magnetic field such that the magnetic fields, generated by currents in parts of the structure of the transmitting coils, are mutually subtracted out of the charge cells and summarized inside the charge cell in an area in which the electronic device for reception of energy is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.