Abstract: A circuit arrangement for providing electrical power for at least one DC load from at least one alternating current source having a primary DC intermediate voltage circuit. The primary DC intermediate voltage circuit is supplied with electrical power of the alternating current source via two rectifiers connected in series such that a centre point tap is provided, means for limiting the DC output voltage of the associated rectifier are provided between the centre point tap of the primary DC intermediate voltage circuit and at least one DC potential of the primary DC intermediate voltage circuit, which can limit the DC output voltage of at least one of the rectifiers connected in series in the event of a fault state in the DC load, in the secondary DC intermediate voltage circuit and/or in at least one of the DC/DC converters.

Abstract: The invention relates to a circuit arrangement with an electronic power switch, a capacitor and a plate-shaped direct current laminate. The direct current laminate includes two metal plates insulated from one another for carrying current and multiple connection elements arranged so to electrically connect the metal plates to the capacitor. The capacitor is electrically connected by the connection elements to the direct current laminate, and the capacitor is on one side of the direct current laminate. This circuit arrangement has a significantly reduced space requirement and simultaneously improved scalability. This is achieved because the direct current laminate additionally has multiple connection elements arranged so to connect the direct current laminate to the electronic power switch of the circuit arrangement. The electronic power switch is electrically connected by the connection elements to the direct current laminate and is arranged on the opposing side of the direct current laminate.

Abstract: The invention relates to a circuit arrangement with an electronic power switch, a capacitor and a plate-shaped direct current laminate. The direct current laminate includes two metal plates insulated from one another for carrying current and multiple connection elements arranged so to electrically connect the metal plates to the capacitor. The capacitor is electrically connected by the connection elements to the direct current laminate, and the capacitor is on one side of the direct current laminate. This circuit arrangement has a significantly reduced space requirement and simultaneously improved scalability. This is achieved because the direct current laminate additionally has multiple connection elements arranged so to connect the direct current laminate to the electronic power switch of the circuit arrangement. The electronic power switch is electrically connected by the connection elements to the direct current laminate and is arranged on the opposing side of the direct current laminate.

Abstract: A self-cleaning brush having a brush body with a pair of sides, a back and a top, a backing member mounted within the brush body, the backing member having an arcuate upper surface, a flexible membrane extending between the sides of the brush body, a plurality of bristles attached to the flexible membrane, a component to urge arcuate upper surface of the backing member into contact with the flexible membrane such that the bristles will assume a convex configuration extending from one of the sides to the other of the sides, and a cleaning plate adapted to lie in juxtaposition to the flexible membrane, the cleaning plate having apertures therein through which the bristles extend. The arrangement provides for a self-cleaning brush wherein the cleaning plate is retained in position by the bristles and permits one to have a convex brushing surface.