Method and apparatus for operating an internal charger system of a portable electronic device
US9843220B2 · kind B2 · utility
21Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2015 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jul 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An internal charging system controls charging of a battery used to power an electronic device when an external power source is connected to the device. The internal charging system can charge a battery that has a higher operating voltage than the voltage provided by the external power source. While charging the battery from the external power source, an internal charge controller can operate and inhibit functions of the device to indicate to user that a charging operation is commencing, and to prevent operation of the device when the battery voltage is too low to support such operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.