Battery inactivation detection device
US6278280A · kind A · utility
7Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cell which has become inactive is detected in a multi-cell battery (15) comprising plural cells (C.sub.n). An inactivity detecting circuit comprising a signal generator (D.sub.n 1) and a diode (D.sub.n 2) connected in series, is connected in parallel with the cell (C.sub.n) When the cell becomes inactive, the signal generator (D.sub.n 1) emits a signal to indicate the state of the cell. Hence, it is possible to economically detect loss of cell activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.