Load current control-type logic circuit
US4967105A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 30, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | May 30, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0952
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An inverter portion, which is to be basic logic circuit, includes switching FETs corresponding to input terminals and a load FET. A logic signal inputted into each of the input terminals drives each corresponding switching FET, thereby to output a prescribed logic signal from an output terminal. Further, a load for restricting a current flowing in the load FET is connected between the gate and the source of the load FET. In addition, a load current control FET is provided for controlling the current in this load. A gate potential of the load current control FET is produced by a diode OR circuit. The diode OR circuit outputs a logic OR of the logic signals inputted into the respective input terminals, and supplies it to the gate of the load current control FET as a load current control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.