Large area power transmitter for wireless power transfer
US10957480B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Mar 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system for wireless power transfer are provided. The method includes adapting first and second variable form factor transmitters into at least first and second sets of cross-coupled segments, respectively, disposed about a pre-determined wireless power transfer area and spatially offset from one another by a preselected spatial offset that minimizes inductive coupling between the first and second sets of cross-coupled segments, transmitting, from first and second radio frequency (RF) power sources electrically coupled to the first and second sets of cross-coupled segments, respectively, RF power across the pre-determined wireless power transfer area via near electromagnetic fields of the variable form factor transmitters such that a magnetic field associated with the near electromagnetic fields rotates in a pattern having a preselected shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.