Output circuit with output voltage controlled by current flow through an output transistor circuit
US5999036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jul 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An output circuit including an input inverting buffer circuit, and an output transistor circuit controlling a voltage of an output terminal by a current flowing therein. A control terminal of the output transistor is coupled to an output of the buffer circuit and to a current divider. The current divider is controlled by a voltage level of the output terminal and diverts current flowing from the output of the buffer circuit to the output transistor. The output circuit reduces overcurrent that flows at a rise of a voltage level of an output terminal, and thereby prevents a ground voltage level from floating up and noise from occurring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.