Wireless power transmitter and receiver
US10923939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Feb 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/402
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to one embodiment of the present invention, a wireless power transmitter for transferring power to a wireless power receiver, the wireless power transmitter includes a coil assembly including a plurality of coils, a power conversion unit configured to convert an input direct current (DC) into an alternating current (AC) for driving the coil assembly, and a communication/control unit configured to communicate with the wireless power receiver and control an amount of power to be transferred to the wireless power receiver using the coil assembly, wherein the plurality of coils are arranged in first and second directions, wherein each of the plurality of coils has a substantially rectangular frame structure having a through hole at a center, and is arranged so that at least portion of the each coil overlaps, in a plane, with a neighboring coil in the first and second directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.