Apparatus for transmitting wireless power for multiple simultaneous charging and apparatus for receiving wireless power
US11190057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2018 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jun 10, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power transmission apparatus for multiple simultaneous charging is disclosed. The disclosed apparatus, which may be a wireless power transmission apparatus configured to provide charging power simultaneously to a multiple number of wireless power reception apparatuses, may include: a driving coil configured to transmit wireless power; a magnetic coupler inductively coupled with the driving coil; and a resonance frequency adjustment part configured to adjust a resonance frequency of the magnetic coupler, where the magnetic coupler includes a multiple number of coils, and a variable capacitor is joined to each of the multiple coils. The disclosed apparatus can improve power transfer efficiency while providing power simultaneously to a multiple number of wireless power reception apparatuses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.