Patent · US Expired

Integrated circuit comprising logic circuits and at least one push-pull stage

US4973861A · kind A · utility

12Cited by
10References
26Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 10, 1989
Grant dateNov 27, 1990
Priority date
Expiry dateJan 10, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K17/163
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An integrated circuit comprising logic circuits and at least one push-pull stage. In order to reduce the magnitude of induction voltages on power supply lines of the circuit, caused by the current variations in the push-pull stage comprising a push transistor and a pull transistor, a first current through one transistor is kept substantially constant until after a most significant rise of a second current through the other transistor when the push-pull stage is switched. A push-pull stage produces lower induction voltages during switching can thus be realized without adversely affecting the switching speed.

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