Digital battery capacity warning device
US5130699A · kind A · utility
25Cited by
2References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1991 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Apr 18, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/16542
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A voltage monitor and method enables the monitoring of a DC input voltage. The input voltage is continuously scanned and compared to a predetermined threshold. The result of the comparison is periodically stored in a shift register along with previous scan results. When a predetermined number of stored scan results indicate an out of range input voltage, a digital output changes state to provide indication of the abnormal condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.