Extended common mode differential driver
US6766395B1 · kind B1 · utility
3Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Aug 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A driver (300) which meets wide common mode voltage requirements is provided. Output passgates (310) protect sensitive line driver circuitry (305) from extreme bus voltages; enabling/disabling circuits (315, 316) detect fault conditions to ensure the line driver is disabled when needed, and pull-ups (320) assist in line driver start up by preventing negative voltage conditions on the bus driven by the line driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.