Abstract: The invention relates to a current regulator having the following features: a first semiconductor body (1; 1?) having a first and second terminal contact (11, 12), a transistor (T) having a control terminal and a load path, which is integrated in the semiconductor body (1; 1?) and the load path of which runs between the terminal contacts (11, 12) of the semiconductor body, a current measuring resistor (22), which is at least partly formed by a section of the load path of the transistor, an evaluation and drive circuit (3), which is connected to the current measuring resistor (22) and which is designed to drive the transistor depending on a voltage across the measuring resistor (22).

Abstract: A mounting method for a semiconductor component. The method includes application of solder material to the semiconductor component, application of at least one contact/mounting element made of semiconductor material and/or metal and/or insulator material to the solder material, heating of at least one part of the semiconductor component to a temperature lying above the melting point of the solder material by impressing an electrical power into the semiconductor component, as a result of which corresponding soldering connections arise between the semiconductor component and the at least one contact/mounting element, and cooling of the connection complex that comprises the semiconductor component and at least one contact/mounting element and was produced in the preceding step.

Abstract: The invention relates to a method for operating a diesel engine in which an air ratio (?) of the fuel which is to be burnt and of the combustion air supplied is set by a control unit (14) according to predetermined values. When a value (15) which is predetermined as a switching criterion is recorded, the control unit (14) switches to a special operating mode for regeneration of a catalytic converter (22) and sets the fuel/air ratio according to predetermined values for this operating mode. To achieve more effective regeneration of the catalytic converter, according to the invention it is provided that at least one afterinjection, which is separated in time from a main injection, of fuel which is also to be burnt takes place in the special operating mode.

Abstract: A method for operating an internal combustion engine having an exhaust gas purification system. Intake air throttling is carried out in order to raise an exhaust gas temperature in a low-load mode and in a traction mode. The amount of intake air throttling is determined as function of an expected load demand so that, with an expected unchanged or decreasing load demand, an increased or maximum possible intake air throttling is set. With an expected rising load demand, however, no or reduced intake air throttling is set, and the expected load demand is estimated based on operating and ambient parameters of the internal combustion engine.

Abstract: A power switch circuit for driving an airbag squib module has a power transistor, a pre-charge capacitance for storing a charge, a charging circuit and a controllable energy-coupling element. The power transistor has a first electrode, a second electrode and a control electrode. A path between the first electrode and the second electrode is connected in series with the airbag squib module between a supply potential and a reference potential. The charging circuit charges the pre-charge capacitance and the charging circuit is therefore coupled with the pre-charged capacitance. The controllable energy coupling element is connected between a first electrode of the pre-charge capacitance and the control electrode of the power transistor. The power switch exhibits a high degree of stability, allows a fast switching of the power transistor and further has an advantageous transient response.

Abstract: A circuitry comprises a converter means for generating an alternating current signal from an energy from an energy source, a piezo transformer with an input and an output, wherein the input of the piezo transformer is electrically coupled to the converter means, to receive the alternating current signal as an excitation on the input side from the converter means, and wherein the output of the piezo transformer is designed to provide an output current, and a load, which is coupled to the output of the piezo transformer, so that output current flows through the same. The load is designed to convert at least part of the electrical energy supplied by the output current flowing through the load into another form of energy. The load is further designed such that a useful power provided in the form of useful energy is substantially proportional to the output current. The circuitry is designed to adjust the output current to a predetermined value.

Abstract: A protection arrangement for a power semiconductor component made of a plurality of cells, in which a current sensor made of a current sense transistor and current sense resistors and also a temperature sensor, is disclosed. The current sense transistor and the temperature sensor are provided in a gap or in different gaps between the cells, while the current sense resistor is fitted directly on at least one cell. The temperature sensor may, include a plurality of stages which are located from the center of the power semiconductor component to an edge of the latter in the gap between two cells.

Abstract: A circuit arrangement includes a first switch device and at least a second switch device. The first switch device is operably coupled to alternately switch on and off a first operating current to a first light-emitting diode arrangement such that the first light-emitting diode arrangement has a first brightness. The second switch device is operably coupled to alternately switch on and off a second operating current to a second light-emitting diode arrangement such that the second light-emitting diode arrangement has a second brightness. The circuit arrangement further includes a logic device configured to control the first and second switch devices that the first and second switch devices do not both switch on simultaneously.

Abstract: The invention relates to a current regulator having the following features: a first semiconductor body (1; 1?) having a first and second terminal contact (11, 12), a transistor (T) having a control terminal and a load path, which is integrated in the semiconductor body (1; 1?) and the load path of which runs between the terminal contacts (11, 12) of the semiconductor body, a current measuring resistor (22), which is at least partly formed by a section of the load path of the transistor, an evaluation and drive circuit (3), which is connected to the current measuring resistor (22) and which is designed to drive the transistor depending on a voltage across the measuring resistor (22).

Abstract: A method of balancing a movable rotating object having multiple radial projections, such as a ceiling fan, the method comprising the steps of: attaching to a non-rotating portion of the object a source that emits a focused light, directing the focused light at a target, and then attaching a weight to a location on one of the rotating projections. Then observing the orbit traced by the light source on the target, changing the location of the weight to another location on one of the radial projections, and then observing the change in the orbit on the target.

Abstract: A mounting method for a semiconductor component. The method includes application of solder material to the semiconductor component, application of at least one contact/mounting element made of semiconductor material and/or metal and/or insulator material to the solder material, heating of at least one part of the semiconductor component to a temperature lying above the melting point of the solder material by impressing an electrical power into the semiconductor component, as a result of which corresponding soldering connections arise between the semiconductor component and the at least one contact/mounting element, and cooling of the connection complex that comprises the semiconductor component and at least one contact/mounting element and was produced in the preceding step.

Abstract: In a method for operating a diesel engine and a diesel engine, wherein engine emission control is provided by switching between a lean mode with superstoichiometric combustion air ratio ?>1 and a rich mode with substoichiometric combustion air ratio ?<1, the engine-torque fluctuations during the switching are determined and engine parameters which influence the engine torque, are adjusted so as to keep the engine torque constant during the switchover.

Abstract: The method for project planning provides a process operating on a computer system that enables project planning information to be displayed and arranged in different display environments. First, the process provides a flexible data arrangement display environment. The data arrangement display enables generating and manipulating data objects in a manner that facilitates creativity, and may include graphically associating the generated data objects with defined categories. In this way, the project planning information may be entered, viewed, and categorized. Second, the process also provides a more traditional project planning environment having task lists, task attributes, and task schedules. The more traditional project planning display enables sophisticated analysis and manipulation of project planning information. By selecting a particular environment, the process converts the project planning information into a form for viewing and manipulation in the selected display.

Abstract: The invention relates to a method for operating a diesel engine in which an air ratio (&lgr;) of the fuel which is to be burnt and of the combustion air supplied is set by a control unit (14) according to predetermined values. When a value (15) which is predetermined as a switching criterion is recorded, the control unit (14) switches to a special operating mode for regeneration of a catalytic converter (22) and sets the fuel/air ratio according to predetermined values for this operating mode.

Abstract: In a method for operating a combustion engine having an exhaust-gas turbocharger, it is possible to switch over between a normal operation and a special operation. In the special operation, at least one main fuel injection and at least one secondary fuel injection are provided. In response to a positive load jump, a switch-over between the normal operation and the special operation provided for increasing the exhaust gas enthalpy is performed, the secondary fuel injection in the special operation being adjusted so that it substantially burns in the combustion chamber and causes an increase in the exhaust gas enthalpy as well as an adjustment of a rich or a lean exhaust gas composition. The method according to the present invention may be used, for example, in a motor vehicle having a diesel engine.

Abstract: In a method for operating a diesel engine and a diesel engine, wherein engine emission control is provided by switching between a lean mode with superstoichiometric combustion air ratio &lgr;>1 and a rich mode with substoichiometric combustion air ratio &lgr;<1, the engine-torque fluctuations during the switching are determined and engine parameters which influence the engine torque, are adjusted so as to keep the engine torque constant during the switchover.

Abstract: An apparatus for killing insects, the apparatus including an electrical mechanism for killing insects, an inner shell, the inner shell being surrounded by the electrical mechanism, and a mosquito attracting device within the inner shell. The insect attracting device includes a fan, a heat source, and a source of CO2. The inner shell has a plurality of openings in the inner shell for ejecting heated air and CO2 from within the inner shell, the openings being formed by indentations in the surface of the inner shell, each indentation being open at one end so as to form an opening which lies substantially perpendicularly to the extending axis of the inner shell. The insect attracting device further includes a mechanism for closing the source of CO2 and for stopping the fan when the temperature within the inner shell goes below the temperature. The insect attracting device further includes a moisture source, and an insect attractant.

Abstract: An apparatus for killing insects, the apparatus including electrical means for killing insects, an inner shell, the inner shell being surrounded by the electrical means, and a mosquito attracting device within the inner shell. The insect attracting device includes a fan, a heat source, and a source of CO2. The inner shell has a plurality of openings in the inner shell for ejecting heated air and CO2 from within the inner shell, the openings being formed by indentations in the surface of the inner shell, each indentation being open at one end so as to form an opening which lies substantially perpendicularly to the extending axis of the inner shell. The attracting device further includes means for closing the source of CO2 and for stopping the fan when the temperature within the inner shell goes below said temperature. The insect attracting device further includes a moisture source, and an insect attractant.

Abstract: The invention relates to a transmitting device and a bus system for the serial data transfer of binary data between at least two communication stations, which are coupled to one another via an individual bus line. The transmitting device of a communication station has a circuit for waveform setting. The circuit for waveform setting generates, from a data signal to be transmitted, an output signal having signal edges which are as far as possible in the form of sinusoidal half-waves. In order to generate the signal edges in the form of sine half-waves, an oscillator, a clock counter and a parallel D/A converter are connected in series one after the other. The output signal at the output of the D/A converter has stepped edges. An optimized output signal having signal edges in the form of sine half-waves can be generated by means of suitable dimensioning of the reference elements of the voltage divider of the D/A converter and also by means of a smoothing filter connected downstream of the D/A converter.

Abstract: The novel method synchronizes an electronic device for monitoring the operation of a microprocessor (watchdog) with the microprocessor when the microprocessor is run up from a quiescent mode to an operating mode. The synchronization is effected by a trigger signal that is transmitted from the microprocessor to the monitoring device and that signals the operational availability of the microprocessor. The monitoring device, in order to receive the trigger signals, temporally toggles between a CLOSED window status, in which a trigger signal cannot be detected by the monitoring device, and an OPEN window status, in which the received trigger signal brings about synchronization between the microprocessor and the monitoring device. The microprocessor watchdog device has a trigger signal input which toggles, in a clocked manner, between a disabled position (CLOSED window) and an enabled position (OPEN window). The trigger signal is received during the OPEN window.