Wireless power communication
US9735584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2013 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0266
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A remote device in accordance with the present invention includes an adaptive power receiver that receives wireless power from the wireless power supply by induction. The adaptive power receiver may be switched among two or more modes of operation, including, for example, a high-Q mode and a low-Q mode. By controlling the duty cycle of the switching between modes, the amount of energy received by the adaptive receiver may be controlled to communicate to the wireless power supply. This control is a form of adaptive resonance communication or Q control communication. Distortion can be reduced or eliminated by ramping between duty cycles with adjustment to intermediate duty cycle values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.