Rectifier bridge apparatus

Details Rectifier bridge apparatus Rectifier bridge apparatus

H - Electricity

02

M

H02M 7/02 (2006.01) H02H 7/125 (2006.01) H02H 9/00 (2006.01) H02M 7/06 (2006.01) H03K 17/08 (2006.01) H02M 1/00 (2006.01)

Patent

CA 2176116

In a rectifier bridge arrangement for starting a DC-driven device without the occurrence of a current surge, the input of the rectifier bridge (6) is connected to a single-phase source and a storage capacitor (7) is connected across the output of the rectifier bridge. At least two of the three input terminals of the rectifier bridge (6) are each connected in series to a respective AC capacitor (9, 10, 11). Each of the capacitors (9, 10, 11) is connected in parallel with a respective controlled switch (12) which functions to short-circuit the capacitors (9, 10, 11) subsequent to the storage capacitor (7) being charged.

Dans un système à pont redresseur conçu pour démarrer une dispositif alimenté en C.C. sans pointe de courant, l'entrée du pont redresseur (6) est connectée à une source monophasée et un condensateur de mémorisation (7) est connecté à la sortie du pont redresseur. Au moins deux des trois bornes d'entrée du pont redresseur (6) sont connectées en série à un condensateur C.A. (9, 10, 11). Chaque condensateur (9, 10, 11) est connecté en parallèle à un interrupteur commandé (12) respectif conçu pour court-circuiter les condensateurs (9, 10, 11) une fois le condensateur de mémorisation (7) chargé.

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