Patent · US Expired

Multiplier circuit

US4038566A · kind A · utility

3Cited by
3References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 22, 1976
Grant dateJul 26, 1977
Priority date
Expiry dateMar 22, 1996

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03G1/0005
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A gain control or multiplier circuit in which an ac signal is applied through bipolar diodes having logarithmic response characteristics to the bases of bipolar transistors connected in series and having an output at their junction, the diodes being directly cross connected to the bases, and gain control signals of opposite polarities being applied to the bases, thereby providing a linear output from the transistors despite their non-linear response characteristics.

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