Power feeding system and power feeding method
US10826327B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Mar 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a power feeding system configured to supply electric power from a power feeding device to a power receiving device. The power feeding device includes: a feeding coil; a drive transistor; and a drive control circuit. The power receiving device includes: a resonant circuit including a receiving coil, a resonant capacitor, and a resonance control transistor; and a resonance control circuit. The feeding coil and the receiving coil are arranged so that a central axis of the feeding coil and a central axis of the receiving coil are orthogonal to each other, and a winding portion of the receiving coil is not positioned in a region of a magnetic flux parallel to the central axis of the feeding coil which is generated by the feeding coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.