Low noise charging method and device for portable devices
US7573240B2 · kind B2 · utility
1Cited by
14References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00711
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is used for charging a battery. According to the method of the present invention, the battery is first charged to a predetermined voltage at a substantially constant current. Then, the charging current is disabled. A pulsing current is applied to the battery for charging the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.