Gain compensation over temperature and frequency variations...

H - Electricity – 03 – F

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H03F 1/30 (2006.01) H03G 1/04 (2006.01) H03G 3/30 (2006.01)

Patent

CA 2508671

Systems and methods are provided for controlling gain compensation over temperature and frequency variations. A variable amplifier may be used to receive a control signal and an input signal. The variable amplifier may be operable to apply a gain to the input signal to generate an output signal, wherein the gain is a function of the control signal. A summation module may be used to combine a gain reference signal and a gain variation signal to generate the control signal. The gain reference signal may be calibrated at a reference temperature and a reference frequency. A gain calibration module may be used to output the gain variation signal as a function of both a current operating temperature and a current operating frequency.

L'invention concerne des systèmes et des procédés permettant de commander une compensation de gain lors de variations de température et de fréquence. Un amplificateur variable peut être utilisé pour recevoir un signal de commande et un signal d'entrée. L'amplificateur variable permet d'appliquer un gain au signal d'entrée afin de produire un signal de sortie, le gain étant fonction du signal de commande. Un module de sommation peut servir à combiner un signal de référence de gain et un signal de variation de gain afin de produire le signal de commande. Le signal de référence de gain peut être étalonné à une température et à une fréquence de référence. Un module d'étalonnage de gain peut être utilisé pour produire le signal de variation de gain en fonction d'une température et d'une fréquence de fonctionnement en cours.

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