Portable telecommunications device
US8154247B2 · kind B2 · utility
4Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2007 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jun 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A portable telecommunications device comprises a charging interface for connection to an external power supply, a voltage and current ratio converter configured to convert an input voltage at the charging interface into an output voltage for charging a battery; and a controller configured to control the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.