Wireless energy transfer over a distance at high efficiency
US8395283B2 · kind B2 · utility
204Cited by
84References
40Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 16, 2009 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jul 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described herein are embodiments of a source resonator optionally coupled to an energy source, and a second resonator, optionally coupled to an energy drain that may be located a distance from the source resonator. The source resonator and the second resonator may be coupled to provide κ/sqrt(Γ1Γ2)>0.2 via near-field wireless energy transfer among the source resonator and the second resonator over distances up to at least the characteristic size of a resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.