Rectifier arbitration in wireless charging systems
US10355514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Sep 23, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power transmitting device may transmit power wirelessly to a wireless power receiving device. The wireless power receiving device may be a portable electronic device with an array of wireless power receiving coils that receive wireless power from wireless power transmitting coils in the wireless power transmitting device. Each receiving coil in the array of wireless power receiving coils may be coupled to a respective rectifier. Control circuitry of the wireless power receiving device may be configured to determine which rectifiers to enable for synchronous rectification. The control circuitry may be configured to enable at least one rectifier based on the alternating-current voltages produced by each coil in the array of receiving coils. The control circuitry may also be configured to enable at least one rectifier based on the output current from each rectifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.