Dynamic focusing and tracking for wireless power transfer arrays
US10880688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2019 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Wireless power transfer systems and methods for focusing wireless power transfer arrays are disclosed. One embodiment includes a wireless power generating unit (GU) including a processing system configured to focus the RF power sources by: sending control signals to the control circuitry to perform a plurality of sweeps using each of a plurality of different basis masks; receiving a message from a RU containing a report based upon received power measurements made by the RU; and sending control signals to focus the RF power sources based on the received message from the RU. Furthermore, each sweep includes performing a phase sweep across a phase sweep range at a plurality of phase step increments with respect to a first group of RF power sources identified in a basis mask, where the first group of RF power sources comprises a plurality of RF power sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.