Patent · US Expired

Amplifier arrangement

US7142059B2 · kind B2 · utility

20Cited by

4References

19Claims

0Family size

Assignee

Infineon Technology AG · DE

Inventors

Axel Klein · Siegen, DE
Ralf-Rainer Schledz · St. Margarethen, AT
Marcin Augustyniak · Regensburg, DE

Key dates

Filing date	Sep 27, 2004
Grant date	Nov 28, 2006
Priority date	—
Expiry date	Dec 2, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH03F1/086
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

The invention provides an amplifier arrangement which is of multistage design. The output transistor in the output stage has a coupling path between its control input and its controlled path. The coupling path comprises a series circuit comprising a Miller compensation capacitance and a resistance with a controllable resistance value. It is thus possible to ensure stable operation of the amplifier regardless of bias and load conditions while simultaneously reducing the quiescent current drawn.

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