Large supply range differential line driver
US7362146B2 · kind B2 · utility
6Cited by
8References
11Claims
0Family size
Inventor
Key dates
| Filing date | Jul 25, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Oct 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A differential transmission line driver with supplemental current sources that overcome switching anomalies and EMU issues when the logic state of the driver is switching. During a logic transition, a current source, that is directed to the output of the driver, may be prevented from delivering its current. The present invention provides a supplemental current that is active during this transition period to supply the missing current. The present disclosure also details a common mode circuit that maintains a stable common mode output level to help control EMI issues when the power supply for the driver changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.