Dual input ac and dc power supply having a programmable dc...

H - Electricity – 02 – M

Patent

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Details

H02M 1/10 (2006.01) G06F 1/26 (2006.01) H02J 9/06 (2006.01) H02M 3/335 (2006.01)

Patent

CA 2454044

A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered simultaneously, by a single converter.

La présente invention concerne un redresseur (10) à deux entrées (12, 14), conçu pour prendre du courant alternatif et du courant continu, et donner une tension de sortie redressée sélectionnable (26) ainsi qu'une seconde tension de sortie redressée (18). Ce redresseur à deux entrées (10) comprend un circuit transformateur-redresseur (20) réunissant un redresseur (22), un survolteur continu-continu (24), un circuit de rétroaction (26), un circuit filtre (25), et un abaisseur de tension continu-continu (28). Ce redresseur (10) se distingue en ce qu'il résout de nombreux problèmes de gestion des systèmes liés à la disponibilité de l'ensemble des composants d'interface nécessaires à l'alimentation électrique d'une grande diversité de produits mobiles à partir d'alimentations électriques, soit en courant alternatif, soit en courant continu. En outre, ce redresseur (10) a l'avantage de comporter des prises à doubles tensions de sortie (16/18), ce qui permet d'alimenter simultanément à partir d'un seul redresseur plusieurs appareils mobiles demandant des tensions différentes.

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