MULTI-OUTPUT SWITCHED POWER CONVERTER PROVIDING AN UNINTERRUPTED VOLTAGE AT ONE OUTPUT

摘要

Multi-output switched power converter providing an uninterrupted voltage at one output and that is connected to a power source through input terminals. The switched converter includes a transformer (11) that comprises a first primary winding (11-1), a first secondary winding (11-2) connected in cascade with a first rectifier (17) and with a first filter (15) whose output is connected to a load. A second secondary winding (11-3) is connected in cascade with a second rectifier, comprising a second switching element (18-1) and a third switching element (18-2), and with a second filter, comprising a choke (16-1) and a capacitor (16-2), whose output is connected to a battery (12). A first control circuit (14) is adapted for regulating the first switching element (18-1) to permit the battery (12) to discharge through the second secondary winding (11-3), transferring energy to the first secondary winding (11-2), during those periods when the energy supply from the power source fails.