Apparatus and method for detecting foreign objects in wireless power transmission system
US10439445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2017 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Sep 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Aspects of the present invention relate to an apparatus and method for detecting foreign objects in a wireless power transmission system. This specification provides a wireless power reception apparatus for detecting foreign objects, including a power measurement unit for generating required power information indicative of required power for the wireless power reception apparatus, sending the required power information to a wireless power transmission apparatus, and measuring power induced from the wireless power transmission apparatus and a secondary coil for receiving the power induced from the wireless power transmission apparatus. In accordance with the present invention, foreign objects intervened between the wireless power transmission apparatus and the wireless power reception apparatus are recognized, and a user removes the foreign objects. Accordingly, damage to a device attributable to foreign objects can be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.