Four-quadrant multiplier for operation of MOSFET devices in saturation region
US6208192A · kind A · utility
0Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1997 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Dec 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/164
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an improved four-quadrant squarer circuit based on the square-law characteristic of metal oxide-semiconductor field effect transistors (MOSFETs). According to the invention, a CMOS four-quadrant multiplier is provided which is arranged to keep the operating transistors fixed in the saturation region, so that they continuously operate according to the square law, and the circuit of the invention allows the transistors to operate in the saturation region with a wide input range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.