Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1993-11-17
1995-05-30
Dougherty, Thomas M.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 19, H02M 3335
Patent
active
054207762
ABSTRACT:
A blocking-oscillator switched-mode power supply for sinusoidal current consumption includes a transformer having a primary winding. A smoothing capacitor is connected to the primary winding. A bridge rectifier is connected to the smoothing capacitor. A semiconductor switching element is connected to the primary winding for the clocked application of an alternating voltage, being rectified by the bridge rectifier and smoothed by the smoothing capacitor, to the primary winding. A control device is connected to the semiconductor switching element for triggering the semiconductor switching element. A current pump is connected to the smoothing capacitor and to the bridge rectifier for receiving current from the bridge rectifier during a turn-on phase of the semiconductor switching element and outputting a charged current to the smoothing capacitor during a blocking phase of the semiconductor switching element.
REFERENCES:
patent: 4564820 (1986-01-01), Peruth et al.
patent: 4617533 (1986-10-01), Paulik
patent: 4984145 (1991-01-01), Dangschat et al.
patent: 5317494 (1994-05-01), Noro
Siemens brochure, "Funktion und Anwendung des Sperrwandler-IC TDA 6405", Catalog No. B111-B6090.
Dougherty Thomas M.
Greenberg Laurence A.
Lerner Herbert L.
Nguyen Matthew V.
Siemens Aktiengesellschaft
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