Sub-surface wireless charging and associated method
US11888331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Jun 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an embodiment, a method includes: wirelessly transmitting power to a receiving coil from a transmitting coil, where the receiving coil is in a wireless power transmission space of the transmitting coil; measuring an output of a sensor during a first time to generate a first measurement; measuring the output of the sensor during a second time to generate a second measurement, the second time being after the first time; and when a magnitude of a difference between the first measurement and the second measurement is higher than a predetermined threshold, stopping wirelessly transmitting power to the receiving coil with the transmitting coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.