Dynamic current sharing in ka/ku lnb design

H - Electricity – 04 – B

Patent

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Details

H04B 1/18 (2006.01) H04B 1/16 (2006.01)

Patent

CA 2625780

A method, apparatus and system providing power to Low Noise Block Amplifiers (LNBs) in a satellite signal receiving system wherein at least one receiver provides power to the LNBs. A system in accordance with the present invention comprises a first stage of power regulation, coupled to the at least one receiver in a respective fashion, wherein the first stage of power regulation comprises linear regulation, and a second stage of power regulation, coupled between the first stage of power regulation and the LNBs, wherein the second stage of power regulation comprises a switching power regulator. Another embodiment of the present invention comprises a first stage of power regulation, coupled to the at least one receiver in a respective fashion, wherein the first stage of power regulation comprises a switching power regulator, and a second stage of power regulation, coupled between the first stage of power regulation and the LNBs, wherein the second stage of power regulation comprises a linear regulator.

La présente invention concerne un procédé, un appareil et un système permettant d'alimenter en courant les amplificateurs LNB (Low Noise Block) d'un système de réception de signaux satellitaires, l'un au moins des récepteurs alimentant en courant les amplificateurs LNB. Un tel système comprend un premier étage de régulation de courant, couplé un à un au récepteur considéré, ce premier étage fonctionnant de façon linéaire, et un deuxième étage de régulation de courant, entre le premier étage et les amplificateurs LNB, lequel deuxième étage comporte un régulateur de courant à commutation. Pour un autre mode de réalisation, l'invention est constituée d'un premier étage de régulation de courant, couplé un à un au récepteur considéré, ce premier étage comprenant un régulateur de courant à commutation, et d'un deuxième étage de régulation de courant entre le premier étage et les amplificateurs LNB, le deuxième étage comprenant un régulateur linéaire.

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