Alkaline battery charger and method of operating same
US5523667A · kind A · utility
27Cited by
11References
12Claims
0Family size
Inventor
Key dates
| Filing date | Feb 28, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Feb 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0018
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for recharging various types of battery cells are enclosed involving alternating periods of charging and discharging of the cells, a reference charge cut-off voltage, a comparator for comparing cell voltage with cut-off voltage, and a circuit for stopping charging activity when cell open circuit voltage is at least a desired minimum voltage. Charge activity is terminated following the achievement of a minimum acceptable state-of-charge so as to limit the total current delivered to the cell in order to prevent cell degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.