Patent · US Expired

Circuit configuration for generating an internal supply voltage

US6194953A · kind A · utility

2Cited by

6References

6Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Gerhard Mueller · Meitingen, DE
Joerg Weller · Hessenhöfe, DE

Key dates

Filing date	Apr 20, 1998
Grant date	Feb 27, 2001
Priority date	—
Expiry date	Apr 20, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG05F1/465
WIPO fieldControl
WIPO sectorInstruments

Abstract

A circuit configuration generates an internal supply voltage for integrated circuits at two different levels, each of which are constant. The selection of the levels is made solely on the basis of the magnitude of an external supply voltage. As a result, it is possible to switch back and forth between an operating mode, in which the internal supply voltage is at a usual value for operation, and a test mode, in which the internal supply voltage is at an elevated value. The invention is used particularly in semiconductor memories.

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