Patent · US Expired

MESFET circuit with threshold-compensated source-follower output

US4968904A · kind A · utility

12Cited by
10References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 1989
Grant dateNov 6, 1990
Priority date
Expiry dateMar 15, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K19/09436
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A logic circuit made up of FET's is disclosed in which an output interface circuit is formed of a source follower circuit including a signal transmitting FET and a constant-current supplying FET, and a ratio of the gate width of the signal transmitting FET to the gate width of the constant-current supplying FET is set so that the high and low levels of the output signal of the logic circuit are independent of the threshold voltage of the FET's.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.