Line driver with output impedance synthesis
US6795495B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Dec 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2601
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A driver for coupling a transceiver to a line, including a first amplifier having first and second inputs and a first output coupled to a first side of the line. The driver includes a second amplifier having a third input and a fourth input and a second output coupled to a second side of the line. The driver further includes a first voltage feedback resistor, connected between the first output and the second input, and a second voltage feedback resistor, substantially the same as the first voltage feedback resistor, connected between the second output and the fourth input. The driver also includes a series resistor, coupled between the first output and the second output; and a gain resistor connected between the second input and the fourth input. The driver further includes two substantially similar current feedback resistors, connected between the gain resistor and the series resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.