Patent · US Expired

Limiting circuit

US4789799A · kind A · utility

10Cited by
2References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 17, 1985
Grant dateDec 6, 1988
Priority date
Expiry dateJun 17, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03M1/129
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A limiter circuit comprises a first and second differential transistor amplifiers, with the collectors of the transistors of the second amplifier receiving the outputs of the first amplifier. A high gain amplifier has its inverting and non-inverting inputs connected to the output of the first differential amplifier, and has its output connected to the base of one of the transistors of the second amplifier through a feedback network. The differential amplifiers have respective current sources, the current sources of the second amplifier providing a larger current than that of the first amplifier.

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