Variable gain amplifier

Details Variable gain amplifier Variable gain amplifier

H - Electricity

03

G

H03G 3/30 (2006.01) H03G 9/18 (2006.01) H04R 25/00 (2006.01)

Patent

CA 2169724

An amplifying system includes voltage gain amplifier (10), comparator (17) and operational transconductance amplifiers (16) and (54). The amplifying system variably amplifies electrical input signals, depending on magnitudes of those signals, with the variation in amplification being selectable as is substantially the maximum output signal value.

L'invention concerne un système amplificateur (10) qui comprend un amplificateur à gain variable (10), un comparateur (17) et des amplificateurs à transconductance opérationnels (16) et (54). Le système amplificateur amplifie de manière variable des signaux électriques d'entrée, selon l'intensité de ces signaux, la variation de l'amplification pouvant être sélectionnée comme peut l'être effectivement la valeur maximale du signal de sortie.

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