Bus driver

US6310494A · kind A · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Thomas Ehben · Hersbruck, DE
• Thomas Steinecke · Hofsingelding, DE
• Dirk Romer · Hersbruck, DE
• Thomas Kunemund · Birkenfeld, DE

Key dates

• Filing date: Feb 1, 1999
• Grant date: Oct 30, 2001
• Expiry date: Feb 1, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K19/00369
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

The invention relates to a bus driver having an inverter for driving a preferably clocked signal on a bus line. In the event of a capacitive coupling of the bus line to at least one neighboring bus line, a number of secondary inverters corresponding to the number of capacitively coupled bus lines are connected in parallel with the inverter of the bus driver. A simple logic combination supplies the necessary activating signals for the parallel connection of the secondary inverters. As a result, an additional secondary inverter can be connected in when an opposite edge occurs on a neighboring line for the instant of the edge. The invention consequently enables the driver intensity to be adapted dynamically to the signals of neighboring capacitively coupled bus lines.