Wireless charging receiving device, wireless charging method and system, and terminal device
US11239706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Mar 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless charging receiving device, wireless charging method and system, and terminal device are provided. The device includes a control unit, receiving coil, rectifier-filter unit, first voltage conversion unit and battery cell module. The control unit transmits a first control signal to a wireless charging transmitting device and outputs a second control signal to the first voltage conversion unit if the wireless charging transmitting device is of a model belonging to a first preset model set and an output voltage of the battery cell module is within a preset range. The receiving coil senses a first electromagnetic wave to generate a first AC. The rectifier-filter unit converts the first AC into a first DC. The first voltage conversion unit converts the first DC into a second DC under the control of the second control signal. The battery cell module is charged by the second DC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.