System and method of trickle charging a battery in a narrow rail architecture
US7880443B2 · kind B2 · utility
3Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The charging circuit for charging a battery of an electronic device using a connected AC power adaptor includes circuitry responsive to an applied regulated voltage for charging the battery connected to the charging circuitry. The circuitry prevents the regulated voltage applied to the circuitry from falling below a settable voltage level. Additionally, the circuitry switches a charging current between a quick charge level and a trickle charge level responsive to a state of a transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.