Wireless charging apparatus, position detection method, and system
US12021398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Oct 28, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application discloses a wireless charging apparatus, a position detection method, and a system. The apparatus includes a transceiver end (100), and the transceiver end (100) includes a resonant network and a power conversion circuit. The apparatus further includes a controller (200), which is configured to determine a relative position between a transmit end (101) and a receive end (102) based on a self-inductance of a transmitting coil and at least one parameter, where the at least one parameter includes at least one of a coupling coefficient between the transmitting coil and a receiving coil and a coil mutual inductance between the transmitting coil and the receiving coil. The relative position between the transmit end (101) and the receive end (102) of wireless charging can be accurately detected by using the self-inductance of the transmitting coil and at least one of the coupling coefficient and the coil mutual inductance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.