Direct feeding apparatus for impedance matching of wireless power transmission device, and transmitter and receiver using the same
US9041253B2 · kind B2 · utility
2Cited by
1References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 25, 2011 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A direct feeding apparatus for impedance matching of a wireless power transmission device includes a helical type resonator, and a feeding unit configured to directly feed power to a region having a relatively small current value as compared to a center of a conductive line of the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.