Programmable event limit detector for computer system power control
US6252406A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2000 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jan 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for controlling the application of power from a battery (12) to an electrical system (18) as well as to a computer (30) that monitors the battery, includes a switch (52) in the power supply path between the battery and the computer. The switch is operated by a controller (40) that receives data representing the battery voltage and the current supplied to the electrical system (18). The controller includes a comparator for comparing the received voltage and current data to preset data values to produce a signal (46) to turn on the switch for a predetermined time to supply power to actuate the computer to perform its monitoring function when one of the current or voltage data received by the controller exceeds one of a predetermined high or low limit data value. The system also includes a wake-up circuit (48) to produce the signal to turn on the switch for a predetermined time to supply power to actuate the computer when one of the predetermined high or low voltage or current limits is not exceeded for a given time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.