Control loop having an amplifier arrangement

Details Control loop having an amplifier arrangement Control loop having an amplifier arrangement

2006-12-05

2006-12-05

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S278000

Reexamination Certificate

active

07145388

ABSTRACT:
A control loop having an amplifier arrangement that has a variable gain is specified. The amplifier has an output for outputting a signal representing the present gain. The control loop comprises a combination unit, which combines the signal at the additional output with a threshold value in such a way as to avoid a kink in the characteristic curve in the region of the highest or lowest variable gain. The advantages of an amplifier that is voltage-linear within wide ranges can thus be united with low switching transients.

REFERENCES:
patent: 6710657 (2004-03-01), Yang
patent: 6972626 (2005-12-01), Takahashi et al.
patent: 197 42 954 (1999-02-01), None
“Bipolar and MOS Analog Integrated Circuit Design”, A. Grebene, ISBN 0-471-08529-4, p. 446, Figure 8.36.

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