Method and apparatus for controlling a peak envelope power...

Details Method and apparatus for controlling a peak envelope power... Method and apparatus for controlling a peak envelope power...

H - Electricity

03

G

H03G 3/20 (2006.01) H03G 3/30 (2006.01)

Patent

CA 2149050

An apparatus and method of reducing a peak envelope power of a linear power amplifier (10) amplifying a plurality of channels is provided. The method includes the steps of measuring (104) the peak envelope power of the linear power amplifier, measuring a channel activity level (101) of each channel of the plurality of channels, and, when the peak envelope power exceeds a first threshold, changing (103, 106) at least one parameter of a channel of the plurality of channels having a channel activity level exceeding a second threshold to reduce the peak envelope power.

L'invention concerne un appareil et un procédé permettant de réduire la puissance d'enveloppe de crête d'un amplificateur de puissance linéaire (10), amplifiant une pluralité de canaux. Le procédé consiste à mesurer (104) la puissance d'enveloppe de crête de l'amplificateur de puissance linéaire, à mesurer le niveau d'activité (10) de chaque canal et, lorsque la puissance d'enveloppe de crête dépasse un premier seuil, à modifier (103, 104) au moins un paramètre d'un des canaux dont le niveau d'activité dépasse un deuxième seuil, afin de réduire la puissance d'enveloppe de crête.

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