Burst control circuit for use in tdma communications system

Details Burst control circuit for use in tdma communications system Burst control circuit for use in tdma communications system

H - Electricity

04

B

H04B 1/04 (2006.01) H03G 3/20 (2006.01) H04B 7/212 (2006.01)

Patent

CA 2080450

A burst control circuit for use in a TDMA communications system comprises a power amplifier having two separate control terminals. A level control signal which is the difference between a reference signal and the level of the output burst signal of the amplifier, feedback-controls the level of the output burst signal through first control terminal, and a waveform control signal having predetermined waveform, controls the waveform of the output burst signal through a second control terminal. When the level of the reference signal is decreased, the amplitude of the waveform control signal is decreased as a function of the level of the reference signal.

L'invention est un circuit de contrôle de salves pour système de communication AMRT qui comprend un amplificateur de puissance ayant deux bornes de contrôle distinctes. Un signal de contrôle de niveau, qui est constitué de la différence entre un signal de référence et le niveau du signal de salve de sortie de l'amplificateur, contrôle par rétroaction le niveau du signal de salve de sortie par l'intermédiaire de la première borne de contrôle, et un signal de contrôle de forme d'onde ayant une forme d'onde prédéterminée contrôle la forme d'onde du signal de salve de sortie par l'intermédiaire de la seconde borne de contrôle. Quand le niveau du signal de référence baisse, l'amplitude du signal de contrôle de forme d'onde baisse en fonction de ce niveau.

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