Abstract: The drive signal for a switchable heating transformer of an electronic ballast should be capable of being produced in a simple manner. For this purpose, the invention provides for an oscillating inverter voltage, which has a variable inverter frequency, to be tapped off, for example, at the half-bridge center point. The inverter frequency is then preferably converted into a drive signal by a charge pump (C1, C2, D1, D2). As a function of this drive signal, the heating transformer (HT) is switched. Synchronization with externally controlled sequence control of the electronic ballast is therefore also possible.

Abstract: The invention relates to a method for the provision of operator-specific performance features of different mobile radio network operators for a mobile radio customer, whereby the mobile radio customer has a smart card, on which a user relationship for the mobile radio customer with a mobile radio network operator is stored. The method is characterized in that at least two user relationships are defined on the smart card of the mobile radio customer with differing mobile radio call numbers and with independent performance features and a mobile radio network operator is assigned to each user relationship.

Abstract: The present invention relates to compounds of the general formula (I) and salts and physiologically functional derivatives thereof, (I) wherein R1 is independently hydrogen, alkyl, cycloalkyl, hydroxyalkyl, haloalkyl, haloalkyloxy, aryl, substituted aryl, heteroaryl, substituted heteroaryl, arylalkyl or substituted arylalkyl; R2 is independently —NR3R4, (II) or (III) R3 is independently alkyl, cycloalkyl, alkoxy, alkylamine, —OH, —SH, alkylthio, hydroxyalkyl, haloalkyl, haloalkyloxy, aryl or heteroaryl, R4 is independently alkyl, cycloalkyl, alkoxy, alkylamine, alkylthio, hydroxyalkyl, haloalkyl, haloalkyloxy, aryl or heteroaryl; R5 is independently H, COR6, CO2R6, SOR6, SO2R6, SO3R6, alkyl, cycloalkyl, alkoxy, —NH2, alkylamine, —NR7COR6, halogen, —OH, —SH, alkylthio, hydroxyalkyl, haloalkyl, haloalkyloxy, aryl or heteroaryl; R6 is independently H, alkyl, cycloalkyl, —NH2, alkylamine, aryl or heteroaryl; R7 is independently H, alkyl, cycloalkyl, alkoxy, —OH, —SH, alkylthio, hydroxyalkyl, aryl, or heteroaryl;

Abstract: The invention relates to a shut-off fitting comprising a housing which is connected to an adjacent pipeline in a pressure tight manner, the diameter of said pipeline defining a tubular passage in the housing. Said fitting also comprises at least one closing body which can be displaced between an open position and a closed position. The inventive shut-off fitting is characterized in that the at least one closing body can be displaced by an articulated mechanism, by means of an actuator which can be vertically displaced in relation to the flow direction, in such a way that it is arranged outside the tubular passage in its open position. The closing body has a contour which is adapted to the contour of the tubular passage, in the open position, and is located on the tubular passage in a radially sealing manner.

Abstract: A radiator arrangement is provided for a work vehicle. The radiator arrangement includes a radiator and a guiding axle that is seated in a first guide element. In order to provide a cleaning position of the radiator with improved accessibility for maintenance purposes, the radiator arrangement is configured such that the guiding axle is radially displaceable relative to the first guide element in a guideway of the first guide element. This allows the radiator to be moved from an operating position to a cleaning position by displacing the guiding axle relative to the first guide element in a direction that is generally radial to the guiding axle.

Abstract: The present invention relates to a circuit arrangement for operating at least one electric lamp (LP) having a drive circuit (16), which has at least one terminal for a system voltage (UN) on the input side and at least one terminal for the at least one electric lamp (LP) on the output side; the drive circuit (16) having a control unit (18) and a step-up converter having a step-up converter inductor (L2) and a switch (S1), and the control unit (18) being designed to operate the step-up converter in a discontinuous mode, in which the current (IN) through the step-up converter inductor (L2) has gaps, the duration (?t) of these gaps being varied. It also relates to an operating method for at least one electric lamp (LP) using such a circuit arrangement.

Abstract: The present invention relates to novel compounds of the general formula (I) and salts and physiologically functional derivatives thereof, wherein Z is NH, or CH2 if Y is SO2 Y is C?O, C?S, or SO2 if Z is CH2; A is phenyl or indolyl, N-methyl-indolyl R1 is —CN, wherein the bond between CR3 and CR7 is a single or double bond; m is 0 or 1; n is 0 or 1; p is 0 or 1; and to their use as medicaments.

Abstract: The present invention relates to an electronic ballast for discharge lamps, for example low-pressure discharge lamps, having a converter having a switching element and a two-part lamp inductor which is connected upstream and downstream of the discharge lamp. An electronic ballast according to the invention has a smoothing circuit which reduces voltage jumps caused by switching operations in the converter at the lamp terminals.

Abstract: A circuit arrangement for operating at least one first and one second lamp which can be inserted in the circuit arrangement, each lamp having a first and a second filament, having a drive circuit for the purpose of driving the at least one first and second lamp, the drive circuit being designed to operate the at least one first and second lamp using a radiofrequency signal, it also includes: a comparator circuit for comparing a first and a second voltage potential within the circuit arrangement, and a deactivation apparatus for deactivating the drive circuit, the comparator circuit being designed to activate the deactivation apparatus if the difference between the first and the second voltage potential exceeds a predeterminable limit value during operation of the at least one first and one second lamp using a radiofrequency signal.

Abstract: The present invention relates to a circuit arrangement for operating at least one electric lamp and at least one LED including: an inverter having a bridge circuit having at least one first bridge transistor and one second bridge transistor arranged in series with one another, a center point of the bridge circuit being defined between the first and second bridge transistors; a lamp supply unit for supplying the electric lamp with energy from the bridge circuit, which includes a supply line with an inductance, via which the center point (M) of the bridge circuit is coupled to a first connection for the electric lamp; the lamp supply unit including an LED supply unit, which is designed to supply the at least one LED with energy. Moreover, it relates to an operating method for at least one electric lamp and at least one LED using such a circuit arrangement.

Abstract: The invention relates to a method for the provision of operator-specific performance features of different mobile radio network operators for a mobile radio customer, whereby the mobile radio customer has a smart card, on which a user relationship for the mobile radio customer with a mobile radio network operator is stored. The method is characterised in that at least two user relationships are defined on the smart card of the mobile radio customer with differing mobile radio call numbers and with independent performance features and a mobile radio network operator is assigned to each user relationship.

Abstract: The present invention relates to a circuit arrangement for operating at least one electric lamp (LP) having a drive circuit (16), which has at least one terminal for a system voltage (UN) on the input side and at least one terminal for the at least one electric lamp (LP) on the output side; the drive circuit (16) having a control unit (18) and a step-up converter having a step-up converter inductor (L2) and a switch (S1), and the control unit (18) being designed to operate the step-up converter in a discontinuous mode, in which the current (IN) through the step-up converter inductor (L2) has gaps, the duration (?t) of these gaps being varied. It also relates to an operating method for at least one electric lamp (LP) using such a circuit arrangement.

Abstract: A circuit arrangement for operating at least one LED and at least one electric lamp having at least one first filament and one second filament, includes first and second terminals for the corresponding filaments; and a lamp supply unit supplying power to the electric lamp; it also including an LED supply unit coupled to the second terminal for the second filament of the electric lamp and designed to supply power to the at least one LED. Also described is an operating method for the circuit arrangement operating at least one LED and at least one electric lamp as described. The circuit arrangement also includes an LED supply unit, which is coupled to the second terminal for the second filament of the electric lamp and supplies power to the at least one LED.

Abstract: The present invention relates to an electronic ballast for discharge lamps, for example low-pressure discharge lamps, having a converter having a switching element and a two-part lamp inductor which is connected upstream and downstream of the discharge lamp. An electronic ballast according to the invention has a smoothing circuit which reduces voltage jumps caused by switching operations in the converter at the lamp terminals.

Abstract: The present invention relates to compounds of the general formula (III) or pharmaceutically acceptable salts thereof with an acid or a base, or pharmaceutically acceptable prodrugs or a stereoisomer thereof, wherein R3 is H, —C(O)NRaRb, halogen, alkyl, haloalkyl, aryl, heteroaryl, OH, SH, NR4?OR5?, NH2, amine, alkylamine, alkoxy, cycloalkyl, heterocycloalkyl, hydroxyalkyl, or haloalkyloxy; R4 is H, halogen, alkyl, —C(NR7)NR7R8, —(CH2)paryl, —(CH2)pNR7R8, —C(O)NR7R8, —N?CR7R8, —NR7C(O)R8, cycloalkyl, heterocycloalkyl, haloalkyl, hydroxyalkyl, hyodroxyalkylamino, alkylamino, heteroaryl, or aryl; R5 is halogen, alkyl, —C(NR7)NR7R8, —(CH2)paryl, —(CH2)pNR7R8, —C(O)NR7R8, —N?CR7R8, —NR7C(O)R8, cycloalkyl, heterocycloalkyl, haloalkyl, hydroxyalkyl, hydroxyalkylamino, alkylamino, heteroaryl, or aryl.

Abstract: The invention relates to a radiator arrangement for a work vehicle. The radiator arrangement includes a radiator and a guiding axle that is seated in a first guide element. In order to provide a cleaning position of the radiator with improved accessibility for maintenance purposes, the radiator arrangement is configured such that the guiding axle is radially displaceable relative to the first guide element in a guideway of the first guide element. This allows the radiator to be moved from an operating position to a cleaning position by displacing the guiding axle relative to the first guide element in a direction that is generally radial to the guiding axle.

Abstract: A circuit arrangement for operating at least one first and one second lamp which can be inserted in the circuit arrangement, each lamp having a first and a second filament, having a drive circuit for the purpose of driving the at least one first and second lamp, the drive circuit being designed to operate the at least one first and second lamp using a radiofrequency signal, it also includes: a comparator circuit for comparing a first and a second voltage potential within the circuit arrangement, and a deactivation apparatus for deactivating the drive circuit, the comparator circuit being designed to activate the deactivation apparatus if the difference between the first and the second voltage potential exceeds a predeterminable limit value during operation of the at least one first and one second lamp using a radiofrequency signal.

Abstract: In a circuit arrangement for operating light sources, inexpensive technologies for power factor correction can be used in combination. A resonant capacitor in a reactance network for coupling the light source is of dual design (C51, C52). A degree of freedom is thus produced which makes it possible to optimize the costs of the circuit arrangement.

Abstract: In a circuit arrangement for operating light sources, inexpensive technologies for power factor correction can be used in combination. Owing to the combination of a dual charge pump and a valley fill circuit it is also possible to adhere to relevant standards for rated current harmonics even at rated powers of over 25 W whilst maintaining low component loading.

Abstract: A device for operating a plurality of discharge lamps is to be fashioned cost-effectively. Consequently, two discharge lamps (71, 72) are operated with the aid of one ballast in whose load circuit the heating current for the individual incandescent filaments (711, 712, 721, 722) is transmitted via a heating transformer with three secondary windings (Lhs1, Lhs2, Lhs3). The associated primary winding (Lhp) is located in a coupling-out circuit (30) with the aid of which the required heating energy is coupled out via an inductor (Lres). The heating current can be controlled by a temperature-sensitive thermistor (PTC).