Patent · US Expired

Bus control buffer amplifier

US6144257A · kind A · utility

9Cited by
9References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 24, 1998
Grant dateNov 7, 2000
Priority date
Expiry dateFeb 24, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K19/018507
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

The present invention relates to a bus control buffer amplifier. The output terminal is associated with a first pull-down N-channel MOS transistor and with a second pull-up N-channel MOS transistor. The first N-channel MOS transistor is directly controlled by an input signal. The second MOS transistor is an N-channel transistor, and its gate is controlled by a third pull-down N-channel MOS transistor directly controlled by the input signal, and by a fourth pull-up N-channel MOS transistor, which is controlled by the inverted input signal. The fourth N-channel MOS transistor has a very abrupt drain-substrate junction.

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