Hybrid power control for a power amplifier

Details Hybrid power control for a power amplifier Hybrid power control for a power amplifier

H - Electricity

03

F

H03F 1/30 (2006.01) H03F 3/24 (2006.01)

Patent

CA 2743484

A hybrid power control system (102) that selectively applies voltage-based gain control and current--based gain control and method (300) of controlling a power amplifier (104) gain are presented. A voltage-based gain control signal (120) is applied to control the gain of the power amplifier when a level output power is indicated by a power contour signal (132). Whether the power amplifier is saturated is identified. A current-based gain control sig-nal (122) is applied to control the gain of the power ampli-fier when the power amplifier is saturated and a decrease in output power is indicated by the power contour signal.

L'invention concerne un système (102) de régulation hybride de puissance qui applique sélectivement une commande de gain basée sur la tension et une commande de gain basée sur le courant, ainsi qu'un procédé (300) de commande du gain d'un amplificateur (104) de puissance. Un signal (120) de commande de gain basé sur la tension est appliqué pour commander le gain de l'amplificateur de puissance lorsqu'un signal (132) de profil de puissance indique une puissance de sortie constante. On détermine si l'amplificateur de puissance est saturé. Un signal (122) de commande de gain basé sur le courant est appliqué pour commander le gain de l'amplificateur de puissance lorsque l'amplificateur de puissance est saturé et que le signal de profil de puissance indique une diminution de la puissance de sortie.

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