Abstract: A centrifugal compressor with a flow-stabilizing casing includes an impeller (2) rotatably supported about a machine axis (7) and having a hub (9) with a plurality of impeller vanes (3) on its periphery; a compressor casing (4), which encloses the impeller, whose inner casing contour (4a) is matched to the outer contour of the impeller vanes (3) and, together with the hub (9), forms a flow duct extending between an axial inlet (10) and a radial outlet (11); and a plurality of elongated stabilizer slots (5), which extend in the flow direction in the inlet region of the flow duct, penetrate from the inner casing contour (4a) into the casing (4) and are distributed over the inner periphery of the casing (4). In order to extend the stable working range to smaller volume flows, the stabilizer slots (7) are arranged relative to the impeller vanes (3) in such a way that their front end facing toward the axial inlet (10) is located at a predetermined distance downstream of the vane leading edge (6).

Abstract: A power semiconductor component having integrated protection against electrostatic destruction is published. Such a semiconductor component (1) comprises a semiconductor substrate (10) having at least one MOS structure whose gate (7) is arranged insulated from the semiconductor substrate (10). Such structures are susceptible to destruction by a dielectric breakdown of the insulation layer, caused by electrostatic charging. According to the invention, this insulating layer between-the gate electrode (3) and the main electrode (2) is now replaced by a semi-insulating layer (9) so that a limited current flow becomes possible between the gate (7) and the main electrode (2) and it is no longer possible for any potential difference to build up.