Abstract: Embodiments of the invention provide an off line DC-DC converter comprising a transformer (180) coupled to a monolithic integrated circuit (400). The transformer applies an input supply DC voltage (Vin) applied to a primary winding (181) of the transformer to produce an output supply DC voltage provided from a secondary winding (182). The monolithic integrated circuit (400) comprises a switching regulator including a switch (151) and a switch controller (100) on a first portion of the monolithic integrated circuit. A capacitive isolator (201) is provided on a second portion of the monolithic integrated circuit. The monolithic integrated circuit regulates the output supply DC voltage and isolates the output supply DC voltage from the input supply DC voltage with respect to electrical shock hazard.

Abstract: A switching “power (100) includes a single, power switching Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) (Q1) that without any additional transistor provides both self-oscillation and over-current protection. A transformer (Tr1) that is included in a positive feedback path of the MOSFET has a tapped (intermediate terminal 103) auto-transformer winding. A source terminal (102) of the MOSFET is coupled via a current limiting resistor (R2) to a junction terminal between first (n1)and second (n2) windings of the tapped auto-transformer (Tr1). The first winding forms the primary winding of the transformer and the second winding is coupled to a gate terminal of the MOSFET to form a regenerative feedback path. The second winding is direct-current (DC) coupled to the gate terminal to avoid the need for any discrete capacitor in the positive feedback path.

Abstract: An integrated circuit (IC) forming a pulse-width modulator controls the switching operation of an output stage of a switching power supply. A snubber capacitor that is coupled to a primary winding of a transformer of the output stage is used for producing a capacitive coupled charging current. The capacitive coupled charging current is coupled to a filter or charge storage second capacitor for producing in the second capacitor a first portion of a second power supply voltage. During a portion of a switching cycle of the output stage, the snubber capacitor is coupled to an inductor to form a resonant circuit. The resonant circuit produces in the second capacitor a second portion of the second power supply voltage for energizing the IC. The second power supply voltage is used for energizing the IC.

Abstract: A sliding closure for a vessel containing molten metal, having a slider unit guided in a slider housing, the slider unit having a push rod that can be connected to a drive rod of a linear drive via a coupling, wherein a mounting element for the linear drive is provided on the slider housing and receives the push rod and the drive rod on a coupling side. The mounting element is equipped with an automatically operating locking device for the linear drive. The slide closure operates reliably, both during the casting process and during transport thereof between the various stations of the plant.

Abstract: The invention relates to a sliding closure (1) for a metallurgical container, comprising two fireproof closing plates (3; 5), of which one is arranged in a slide unit (6) and is used to open and close a spout opening (10). The other closing plate (3) is arranged in a metal housing (2) that can be fastened to the container. Said stationary housing (2) and the slide unit (6) also accommodate an upper fireproof inlet sleeve (4) on the container side and a lower fireproof spout sleeve (8). In the housing (2) and in the slide unit (6), at least one additional inner part (2a, 2a?, 7a) is arranged in each case, each additional inner part enclosing the spout sleeve (8) or the inlet sleeve (4). Thus, thermal stresses in the slide unit or in the housing can be reduced and the risk of cracks forming can be significantly reduced.

Abstract: The invention relates to a fireproof unit for a sliding closure at the spout of a container containing metal melt, comprising a fireproof adapter block (21) that can be placed on the container spout, a fireproof bottom plate (10) connected thereto, to which bottom plate a slidable fireproof sliding plate (18) can be connected, wherein the sliding plate allows the sliding closure (1) to be opened or closed. In addition to the first bottom plate (10) connected to the adapter block (21), a second bottom plate (12) adjoins the adapter block. The second bottom plate can be slid in under the adapter block to replace the first bottom plate. The adapter block (21) has such a length in the direction of the second bottom plate (12) that the adapter block is in sliding contact with said second bottom plate (12) at the lower sliding surface (21?) of the adapter block.

Abstract: The invention relates to a pressing device for a casting pipe at the spout of a metallurgical container, wherein the pressing device is provided with spring-loaded pressing elements (2) that can be pressed against guide surfaces (10) of a casting pipe (1). The casting pipe (1) comprises a tubular part (4) and an upper plate (5). The guide surfaces (10) are arranged on the underside of the plate (5) on both sides of the tubular part (4) and are directed downward at an angle. They form a plate cross-section that is tapered downward. The pressing elements (2) are each provided with a head (2a) that is convexly curved in the adjustment direction (A) of the casting pipe (1) and can be pressed against a guide surface (10) of the casting pipe (1), which is curved in the longitudinal direction of the pressing element or in the adjustment direction (A). Thus, the compressive forces exerted by the pressing pins are optimally transmitted, more toward the casting pipe opening and therefore acting more evenly.

Abstract: A display comprises a front-end component having light shutters and a plurality of backlight devices, wherein the display operates in a full screen video display mode and partial screen energy-saving auxiliary mode. In the full screen video display mode, the backlight devices are activated and in the partial screen energy-saving auxiliary mode, at least one backlight device is not activated. In the auxiliary mode, the light shutters can control luminance or the light shutters along with attenuating the backlight device control luminance. In the auxiliary mode, the backlight devices are driven via enabled inputs, a digital bus system, or an analog control signal.

Abstract: The invention relates to a sliding closure (1) for a receptacle containing molten metal, comprising a housing frame (3) that can be fastened to a spout of the receptacle, a refractory base plate (5) and a sliding unit (7) having a refractory sliding plate (8) that can be sealingly pressed against the base plate by means of spring elements (11) and a contiguous refractory spout sleeve (9) being contained in said housing frame. The case (4) has a second base plate (6) juxtaposed to the base plate (5) and can be displaced inside the housing frame (3) at a right angle to the direction of movement of the sliding unit (7) from an initial position in which the base plate (5) is in an operating position towards a final position in which the second base plate (6) is in the operating position. It is therefore possible to replace the base plate, which especially in converters wears outs very quickly, by a new base plate in a rapid and convenient manner without interrupting the casting operation.

Abstract: A closing plate for a sliding closure on the spout of a receptacle for molten metal, especially of a converter, comprises an elongate refractory plate (11) and a sheet metal jacket (12) surrounding the same. The refractory plate (11) has a sliding surface (14, 16) which can be braced with a sliding surface of a refractory closure plate interacting therewith or with a sliding surface (21?) of a refractory head part (21). The refractory plate (11) has a tapering section (26, 28, 29) which forms an angle (a) with the sliding surface (14, 15) on at least one side delimiting the sliding surface (14, 15), said tapering section being associated with a section of the refractory plate (11) that projects beyond the sheet metal jacket (12).

Abstract: An integrated circuit (IC) forming a pulse-width modulator controls the switching operation of an output stage of a switching power supply. A snubber capacitor that is coupled to a primary winding of a transformer of the output stage is used for producing a capacitive coupled charging current. The capacitive coupled charging current is coupled to a filter or charge storage second capacitor for producing in the second capacitor a first portion of a second power supply voltage. During a portion of a switching cycle of the output stage, the snubber capacitor is coupled to an inductor to form a resonant circuit. The resonant circuit produces in the second capacitor a second portion of the second power supply voltage for energizing the IC. The second power supply voltage is used for energizing the IC.

Abstract: The disclosed embodiments relate to a system and method for reducing standby power consumption in an electronic device. There is provided an electronic device (10) comprising receiver circuitry (16), and power supply control circuitry (18) coupled in series with the receiver circuitry (16), wherein a ground connection of the receiver circuitry (16) is coupled to a voltage supply connection of the power supply control circuitry (18).

Abstract: A switching “power (100) includes a single, power switching Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) (Q1) that without any additional transistor provides both self-oscillation and over-current protection. A transformer (Tr1) that is included in a positive feedback path of the MOSFET has a tapped (intermediate terminal 103) auto-transformer winding. A source terminal (102) of the MOSFET is coupled via a current limiting resistor (R2) to a junction terminal between first (n1)and second (n2) windings of the tapped auto-transformer (Tr1). The first winding forms the primary winding of the transformer and the second winding is coupled to a gate terminal of the MOSFET to form a regenerative feedback path. The second winding is direct-current (DC) coupled to the gate terminal to avoid the need for any discrete capacitor in the positive feedback path.

Abstract: The invention relates to a sliding closure for a vessel containing molten metal, having a slider unit (11) guided in a slider housing (10), said slider unit having a push rod (14) that can be connected to the drive rod (16) of a linear drive (17) via a coupling (15), wherein a mounting element (18) for the linear drive is provided on the slider housing (10), said element receiving the push rod (14) and the drive rod (16) on the coupling side. The mounting element (18) is equipped with an automatically operating locking device (21) for the linear drive (17) and/or an automatically operating locking device (28) for the push rod (14). The slide closure according to the invention operates reliably in said manner, both during the casting process and during transport thereof between the various stations of the plant.

Abstract: A sliding closure for a metallurgical vessel comprises an elongated refractory slide plate (2), which is exchangeably arranged in a metal frame (1) and the longitudinal direction (L) of which corresponds to the direction of displacement of the sliding closure. Also provided are means (3) for bracing the slide plate (2) in the metal frame (1), which comprise a wedge shoe (10) that is loaded by a spring (9) and can be adjusted transversely in relation to the direction of displacement of the sliding closure. This wedge shoe (10) is operatively connected to a counterpart (11), which can be brought into connection with the slide plate (2) and acts on the slide plate (2) in its longitudinal direction (L). The oscillating movements of the movable slide plate taking place during operation are absorbed and the bracing device ensures satisfactory bracing of this slide plate at any time.

Abstract: A peripheral device has a bus-controlled switching arrangement for operating a power supply. A device comprises a bus interface adapted for communicating with a remote device via a bus. A switch circuit is connected between the bus interface and a power supply. The switch circuit is operative, when the power supply is in an inactive state, for sensing bus activity and for generating a signal for activating the power supply in response to the sensed bus activity, wherein the switch circuit has no power dissipation when no activity is sensed on the bus.

Abstract: A wall mounted display device having user friendly connectors for coupling with one or more remote appliances is described. The wall mounted display includes a connector portion that is moveable with respect to the display device. The moveable connector portion is positioned along a portion of a side of the display device and provides easier access to connectors needed to couple a remote appliance to the display device. Alternatively, the screen of the display device is moveable with respect to a wall to which the display device is mounted. The screen is moveable in a plane substantially parallel with the wall upon which the display device is mounted, pivotable at an angle away from the wall upon which the display device is mounted, or rotatable with respect to an electronics portion of the display device.

Abstract: Embodiments of the invention provide an off line DC-DC converter comprising a transformer (180) coupled to a monolithic integrated circuit (405). The transformer applies an input supply DC voltage (Vin) applied to a primary winding (181) of the transformer to produce an output supply DC voltage (Vout) provided from a secondary winding (182). The monolithic integrated circuit (400) comprises a switching regulator including a switch (151) and a switch controller (100) on a first portion of the monolithic integrated circuit. A capacitive isolator (201) is provided on a second portion of the monolithic integrated circuit. The monolithic integrated circuit regulates the output supply DC voltage and isolates the output supply DC voltage from the input supply DC voltage with respect to electrical shock hazard.

Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).

Abstract: The invention relates to a sliding closing element, especially for an intermediate distributor or similar metallurgical containers. According to the invention, the mobile sliding plate of said closing element can be driven by means of a drive comprising a driving road and a push rod connected thereto. In order to ensure that the oscillatory movement of the sliding plate does not impair the connection during operation, a coupling arranged as a connecting body between the opposite ends of the push rod and the driving rod is provided with two coupling parts that engage in each other without play.