Voltage supply compensation
US9948127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/79
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply circuit can be configured to generate a supply voltage that provides power to the apparatus. A signal generation circuit can be configured to generate a radio frequency (RF) charging signal. An amplification circuit can be configured to amplify the RF charging signal using the supply voltage and to present the amplified charging signal to a power transmitting coil for transmission of wireless power to a remote device. A communication circuit can be configured to detect amplitude variations in the RF charging signal; detect variations in a voltage level of the supply voltage; adjust the detected amplitude variations in the RF charging signal to compensate for detected variations in a voltage level; and decode data represented by the amplitude variations in the RF charging signal based upon the adjusted amplitude variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.