Chargers, systems and methods for detecting a power source
US8242742B2 · kind B2 · utility
21Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Apr 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charger includes a detection pin, a voltage divider, and a comparator. The detection pin can couple the charger to a power source via a first data line. The voltage divider and the comparator are coupled to the detection pin. The voltage divider divides a power voltage provided by the power source and provides a detection voltage at the detection pin. The comparator compares the detection voltage with a predetermined reference voltage and identifies a type of the power source according to the comparing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.