Programmable low battery detector
US6373256B1 · kind B1 · utility
24Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1999 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Jan 8, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/16542
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A low battery detect circuit with digitally programmable detect levels. The programmable low battery detect circuit includes a comparator that compares a stable reference voltage against a battery-supplied voltage as divided down by a digitally programmable resistive divider chain. By programmably varying the resistance of the divider chain, the low battery detect threshold level can be varied depending on the requirements of the application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.