Wireless power feeder and wireless power transmission system
US8729736B2 · kind B2 · utility
2Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Power is fed from a feeding coil L2 to a receiving coil L3 by magnetic resonance. An oscillator 202 alternately turns ON/OFF switching transistors Q1 and Q2 to cause AC current IS of drive frequency fo to flow in a transformer T2 primary coil Lb. The AC current IS causes AC current I1 to flow in an exciting coil L1 and causes AC current I2 to flow in the feeding coil L2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.