Battery discharge level detection circuit
US4231026A · kind A · utility
27Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1978 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Sep 13, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for detecting the discharge level of a long life battery, such as a lithium battery, in which the battery is periodically subjected to an increased load for short durations of time. The periodic increases in load allows the end of battery life to be predicted and detected prior to the time the battery is fully depleted. Forecasting the end of battery life ensures that the battery will have sufficient energy to reliably operate the discharge level detection circuitry before the battery is fully depleted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.