Rx headroom adjustment for stability improvement in wireless power systems
US10630109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2017 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power system includes a receiver. The receiver may include a rectifier coupled to a receiver coil to receive power. The receiver may include a detector coupled to the rectifier to receive a monitor signal from the rectifier. The detector may provide a range signal indicating whether the monitor signal is outside a predetermined range. The receiver further includes an oscillation determiner coupled to the detector to receive the range signal. The oscillation determiner may determine that the rectifier is in an oscillation mode or is not in an oscillation mode. In some embodiments a communication unit is coupled to the oscillation determiner. The oscillation determiner may communicate a power adjustment signal and may request increased power through the communication unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.