Method and apparatus for differentiating battery types
US5485090A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1993 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Feb 11, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The cell type of a battery is determined by characterizing the series resistance behavior of various cell types to determine ranges of series resistance values exhibited by batteries of a particular cell type. The series resistance of a battery of unknown cell type is then measured. If the series resistance measurement is determined to be within a range of series resistance values exhibited exclusively by a cell type, the battery is identified as having that cell type. However, for batteries whose series resistance measurements are within a non-exclusive range of series resistance values, a second cell type discharge characteristic such as battery voltage is also characterized to differentiate between the cell types. The second discharge characteristic of these batteries is also measured and used to identify the cell type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.