Pulse width communication in a wireless power system
US12206262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2021 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Dec 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure provides systems, methods and apparatuses for a new communication technique between a wireless power transmission apparatus and a wireless power reception apparatus. The new communication technique may be more efficient for communication of a feedback parameter or other control information compared to a legacy packet-based digital communication technique. The new communication technique may use a pulse width modulation (PWM) signal as an analog representation of a feedback parameter or other control information. In some implementations, the PWM communication technique in this disclosure can be used for a variety of control or feedback information from the wireless power reception apparatus to the wireless power transmission apparatus. Furthermore, in some implementations, the PWM communication technique may be used for feedforward information from the wireless power transmission apparatus to the wireless power reception apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.