Battery charging controller and battery module using the same
US8154250B2 · kind B2 · utility
10Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2009 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a battery charging controller for achieving a balanced battery charge. The battery charging controller includes a voltage divider, a switch module and a balance circuit. A reference voltage generated by the voltage divide is used to determine which battery unit in a battery module has an insufficient voltage lower than the others, so that the balance circuit controls the switch module to allow a larger current to charge a lower-voltage battery than a higher-voltage battery, so as to result in substantially the same voltage for each fully charged battery of the battery module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.