Method and apparatus for wirelessly charging portable electronic devices
US10164472B2 · kind B2 · utility
3Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2014 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Nov 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/3883
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Wireless charging of portable electronic devices is carried out by detecting load variations caused by the device and dynamically compensating for these variations during charging to increase system efficiency and regulate delivered power. In some embodiments, load variations are tracked by comparing a feedback signal to a value range and determining whether the feedback value is higher than, lower than, or within the range of values. This information is then used to modify one or more parameters associated with a power amplifier in a transmitter device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.