Suppression of radio frequency emissions

H - Electricity – 02 – K

Patent

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Details

H02K 11/02 (2006.01) G12B 17/02 (2006.01)

Patent

CA 2161255

In an electrical drive (10) and a method for the suppression of radio frequency emissions from an electrical drive of the kind comprising an electrical motor (11; 43; 43'; 101) supplied with electrical power via an electronic controller (12; 40; 40'; 102) having a high speed switching means which generates high frequency energy, an electrical screen (9; 9'; 14, 15, 16; 54; 61; 75; 101', 102, 103') is provided to receive the radio frequency energy and is connected back to the input side of high speed switching means.

Destiné à un système d'entraînement électrique, un procédé permet d'éliminer les émissions en radiofréquences. Ce système comprend un moteur électrique (11; 43; 43'; 101) alimenté en énergie électrique par l'intermédiaire d'un circuit de commande électronique (12; 40; 40'; 102) doté d'un dispositif de commutation à haute vitesse qui engendre une énergie à haute fréquence. Un écran d'antiparasitage (9; 9'; 14, 15, 16; 54; 61; 75; 101', 102', 103') est disposé de façon à recevoir cette énergie en radiofréquences, et il est raccordé en retour à l'entrée du dispositif de commutation à haute vitesse.

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