Electronic device for transmitting wireless power having a plurality of power transmission coils and operating method therefor to identify position of a wireless power reception device
US12374939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Sep 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2213/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power transmission device includes power transmission coils for transmitting power to a wireless power reception device; inverters for applying alternating current power to the coils; a communication module using a frequency different from that of the power transmitted from the coils; and a processor. The processor controls the inverters such that first power is sequentially applied to the coils respectively, receives a communication signal from the reception device through the communication module while the first power is being sequentially applied, identifies a first coil corresponding to a position of the reception device based on of a reception time point of the communication signal and time points at which the first power starts to be applied to the coils, and controls a first inverter corresponding to the first coil such that second power for charging the reception device is applied to the first coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.