Asynchronous reset scheme for ultra-low noise port tri-state output driver circuit
US5216289A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Oct 24, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/164
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for providing digital output signals carrying large amounts of currents without generating large transients at an output terminal connected to a load comprising apparatus for providing gradually increasing amounts of current of a first polarity to the output terminal, apparatus for providing gradually increasing amounts of current of a second polarity to the output terminal, apparatus for utilizing the apparatus for providing gradually increasing amounts of current of a first polarity to the output terminal to place the output terminal at a voltage level required for input signals, apparatus for providing a high impedance path to hold the output terminal at the voltage level required for input signals, and apparatus for disabling the apparatus for providing gradually increasing amounts of current of a first polarity and the apparatus for providing gradually increasing amounts of current of a second polarity to the output terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.