Battery charging for mobile devices
US10461555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Sep 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wired connection, such as USB-C, for charging a sink from a source, has a configuration channel and a power transmission channel. The presence of data on the configuration channel is used to determine that a cable has been disconnected from the power source. This charging system contains a capacitive power converter and a controller for controlling the capacitive power converter. There is also a configuration channel detector, which is arranged to detect the status of the configuration channel and to provide this status to the controller, so that the system can determine that the source has been detached from the bus when no configuration channel data is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.