Patent · US Expired

Voltage generator with standby operating mode

US6570367B2 · kind B2 · utility

12Cited by

6References

14Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Rainer Bartenschlager · Kaufbeuren, DE
Martin Brox · Munich, DE
Albert Keyserlingk · Hersbruck, DE

Key dates

Filing date	Mar 4, 2002
Grant date	May 27, 2003
Priority date	—
Expiry date	Mar 4, 2022

Classification

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

Abstract

A voltage generator for producing an internal supply voltage has a standby voltage generator and a voltage generator for normal operation that are controlled in common by a reference voltage. In addition, a comparator stage is provided whose switching threshold is set lower than the reference voltage by using a voltage divider that is connected to the reference voltage. The additional comparator stage thus activates the voltage generator for normal operation when the internally produced voltage falls below its switching threshold so that the internal supply voltage is stabilized.

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