DIFFERENTIAL AMPLIFIER WITH INCREASED WEAKENING OF INPUT COPHASED SIGNAL Russian patent published in 2007 - IPC H03F3/45 

Abstract RU 2293433 C1

FIELD: radio engineering and communications, possible use as amplification device for analog signals in structure of analog microchips of various functional purpose.

SUBSTANCE: amplifier (dwg.2) contains input parallel-balanced cascade 1 with first 2 source of supporting current in common emitter chain, output of which 3 is connected to input of current mirror 4, auxiliary transistor 5, collector of which is connected to output of current mirror 4, and to output 6 of differential amplifier, while emitter is connected to second 7 source of bearing current, first source of supporting current 2 in common emitter circuit of input parallel-balance cascade 1 is connected to base of auxiliary transistor 5.

EFFECT: increased coefficient of weakening of cophased input signal.

3 cl, 13 dwg

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RU 2 293 433 C1

Authors

Prokopenko Nikolaj Nikolaevich

Budjakov Aleksej Sergeevich

Krjukov Vladimir Valentinovich

Dates

2007-02-10Published

2005-09-15Filed