System and method for implementing soft power up
US6693478B1 · kind B1 · utility
0Cited by
17References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Aug 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed to help protect a node of associated circuitry from overshooting or undershooting, such as can be associated with power up or other transitional modes. The protection is implemented by diode connecting a transistor, which has its base electrically coupled to the node during the transitional mode. Either after a predetermined time period or after the voltage at the node has reached a desired level, the diode connection can be removed to permit normal operation to begin in which a bias can be provided to the node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.