Wireless charger with adaptive alignment assistance
US11070098B2 · kind B2 · utility
4Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jul 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In some implementations, a wireless charger includes a power transmission coil, a magnet sensor, an electromagnet, and control circuitry. The power transmission coil can wirelessly provide power at a charging area of the wireless charger through inductive coupling. The magnet sensor is arranged to detect the presence of a magnet at the charging area. The electromagnet can generate a magnetic field in the charging area when the electromagnet is energized. The control circuitry is able to selectively energize the electromagnet based on signals generated using the magnet sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.