Starter circuit, bandgap circuit and monitoring circuit

US8143878B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Julia Kresse · Munich, DE
• Christoph Mayerl · Munich, DE
• Christoph Saas · Munich, DE
• Uwe Weder · Freiburg im Breisgau, DE
• Dennis Tischendorf · Unterhaching, DE

Key dates

• Filing date: Dec 12, 2008
• Grant date: Mar 27, 2012
• Expiry date: Aug 6, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S323/901
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A bandgap circuit, a starter circuit, and a monitoring circuit for a bandgap circuit including a bandgap reference circuit having a first branch and a second branch, the first branch having a first node, the second branch having a second node, such that a potential at the first node is equal to a potential at the second node in an equilibrium of the bandgap reference circuit. The bandgap reference circuit further having a feedback node for a feedback signal and a feedback circuit coupled to the first and second nodes and adapted to provide a feedback signal to the feedback node based upon a comparison of the potentials at the first and second nodes.