Wireless power transfer method, apparatus and system
US10256666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2015 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Nov 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a wireless power reception method, a wireless power reception apparatus, and a wireless charging system in a wireless power transmission and reception field, and the wireless power reception apparatus may include a power receiving unit configured to change a magnetic flux to a current to receive power in a wireless manner, and a power controller connected to the power receiving unit to change a resonant frequency to control power received from the power receiving unit, wherein the power controller includes a first capacitor, a second capacitor connected to the first capacitor in parallel, a first switch connected to the second capacitor in series to flow a current in a first direction, a second switch configured to flow a current in a second direction opposite to the first direction, and a switch controller configured to control the first and the second switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.