Method and apparatus for controlling wireless power transmission
US11349347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jul 15, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling a wireless power transmitter can include receiving, during a first determination phase, a foreign object detection status packet; before entering a first power transfer mode for transmitting first power and before entering a second power transfer mode for transmitting second power, determining whether a foreign object is present based on the foreign object detection status packet to generate a determination result; in response to determining that the foreign object is present based on the determination result, transmitting the first power according to the first power transfer mode; in response to determining that the foreign object is not present based on the determination result, transmitting the second power according to the second power transfer mode; and determining, during a second determination phase, whether the foreign object is present while transmitting the first power in the first power transfer mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.