Voltage sequencing circuit for powering-up sensitive electrical components
US6333650A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2000 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Dec 5, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voltage sequencing circuit powers-up electrical systems by sequentially enabling a series of power supply lines to the electrical system. After each power supply line is enabled, the voltage sequencing circuit waits a pre-programmed delay time before enabling the next power supply line. The delay time allows the newly enabled power supply line to settle. Additionally, the voltage sequencing circuit constantly monitors previously enabled power supply lines while continuing to enable the remaining power supply lines. If any of the previously enabled lines fail, the voltage sequencing circuit disables the power supply line before reinitiating a complete power-up sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.