Bus low voltage differential signaling (BLVDS) circuit
US7893720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2009 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018528
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential signaling circuit and a control circuit. The differential signaling circuit includes a first positive driver and a first negative driver. The first negative driver has different impedance than the first positive driver. The first positive driver and the first negative driver together define a first current path between positive and negative power supply terminals. A first output is defined on the first current path intermediate the first positive driver and the first negative driver. The control circuit includes a first driver that drives a transmission line at a first output voltage, a feedback amplifier responsive to the first output voltage to generate a control signal and a metal oxide semiconductor (MOS) driver coupled to the first driver and responsive to the control signal to make impedance of the first driver equivalent to impedance of the transmission line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.