Abnormal battery cell voltage detection circuitry
US5302902A · kind A · utility
217Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1991 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Apr 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Defective battery cells are detected by individually monitoring the voltage utput therefrom, which characteristically becomes abnormal when the defective condition occurs. Each cell is independently referenced to a common ground by its voltage monitoring device which drives a level sensing comparator that generates a control signal when the output voltage from that cell becomes abnormal. This control signal drives at least one switch to indicate when the defective condition occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.