Output power detection circuit

Details Output power detection circuit Output power detection circuit

2007-09-25

2007-09-25

Nguyen, Ha Tran (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S142000, C324S095000

Reexamination Certificate

active

10560638

ABSTRACT:
A detection circuit for detecting the output power of a power amplifier comprises a first current minor transistor (Ti1) having a base, which is connectable to a power transistor (T10), and a collector, a RF detection means (RF-det) for detecting the RF current flowing through the current mirror transistor (T11). Said RF detection means (RFdet) is connected to the collector of said first current mirror transistor (T11). Said detection circuit further comprises a biasing means (bias-RF-det) for biasing said RF detection means (RF-det), wherein said biasing means is connected to said collector of said first current mirror (T11) and said RF detection means (RF-det).

REFERENCES:
patent: 5659253 (1997-08-01), Busking
patent: 6448855 (2002-09-01), Sowlati et al.
patent: 6528983 (2003-03-01), Augustine
patent: 6545539 (2003-04-01), Prikhodko et al.
patent: 6753734 (2004-06-01), Arell et al.
patent: 6990323 (2006-01-01), Prikhodko et al.

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