Method and system of wireless power transfer foreign object detection
US9417199B2 · kind B2 · utility
1Cited by
2References
34Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 17, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | May 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power transfer foreign object detector having, at least one secondary receiver coil, an adjustable load electrically coupled to the at least one secondary receiver coil, and at least one temperature sensor providing at least one temperature detection signal, wherein the at least one temperature sensor is responsive to at least one thermal state of the at least one secondary receiver coil, and wherein foreign object detection is based at least in part upon the at least one temperature detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.