Circuit and method for amplification of an electrical input...

Details Circuit and method for amplification of an electrical input... Circuit and method for amplification of an electrical input...

2006-12-05

2008-08-12

Nguyen, Khanh V (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S286000, C330S295000

Reexamination Certificate

active

07411450

ABSTRACT:
In a circuit and a method for amplification of an electrical input signal, a signal splitter divides the input signal into a first partial signal in a first signal path and a second partial signal in a second signal path. The first signal path has a first amplification stage for amplification of the first partial signal and the second signal path has a second amplification stage for amplification of the second partial signal. Each of the two amplification stages is supplied with current by a current supply device. Both amplified partial signals are recombined into an output signal by a signal combination element downstream from the amplification stages. The first amplification stage and the second amplification stage are coupled with a regulation device that regulates the amplification of the first partial signal dependent on a current difference between a supply current requirement of the second amplification stage and a supply current requirement of the first amplification stage and which regulates the amplification of the second partial signal dependent on a current difference between the supply current requirement of the first amplification stage and the supply current requirement of the second amplification stage.

REFERENCES:
patent: 5872481 (1999-02-01), Sevic et al.
patent: 6388528 (2002-05-01), Buer et al.
patent: 6825719 (2004-11-01), Barak et al.
patent: 198 11 839 (1999-09-01), None

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