Monitor and circuit arrangement for voltage regulator

US7436314B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Gunter Haider · Linz, AT
• Gerhard Nebel · Immenstadt im Allgäu, DE
• Iker San Sebastian · Munich, DE
• Holger Sedlak · Hersbruck, DE
• Uwe Weder · Freiburg im Breisgau, DE

Key dates

• Filing date: Dec 16, 2005
• Grant date: Oct 14, 2008
• Expiry date: Nov 7, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G05F1/465
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A circuit arrangement having a voltage regulator, which is designed to generate a regulated operating voltage, and a voltage monitoring unit, which is designed to monitor the regulated operating voltage for deviations from desired values. The voltage monitoring unit has a first detector, which is designed to cause an alarm signal to be generated when the first detector detects that the regulated operating voltage is outside a first voltage interval, and a second detector, which is designed to cause an initiator to initiate countermeasures which influence the regulated operating voltage when the second detector detects that the regulated operating voltage is outside a second voltage interval, which is inside the first voltage interval.