Abstract: A position-measuring device and a corresponding method for measuring an absolute position includes a material measure having a first binary code and a second binary code and a sensor device that scans the first and second binary codes. The sensor device scans the first binary code, which has a first number of code words, each having the same code word length. The second binary code of the material measure forms a portion of the first binary code and has a second number of the code words that can be mapped onto the first binary code.

Abstract: The invention relates to a device and a method for simulating a sequence for machining a workpiece on a machine tool. The invention is characterized by a holistic simulation approach. Particularly, a PLC control means 723 and a PLC sequence simulation means 725 assist in simulating the PLC movement sequences of the machine tool. This enables a realistic simulation of a machine tool in all its substantial aspects, resulting in considerable advantages especially in the field of training and during the determination of machine utilization times.

Abstract: The present invention relates to an optoelectronic sensor for 5 demodulating a modulated photon flux (50), and to a measuring device, in particular for 3D distance measurement, having at least one optoelectronic sensor of this type. The optoelectronic sensor has at least two collecting zones 10 introduced in a semiconductor region (10), which collecting zones are for example diffused into the semiconductor region and doped inversely with respect to the semiconductor region (10). The collecting zones serve for collecting and tapping off minority carriers generated upon penetration of a modulated photon flux (50). Furthermore, at least two control zones are introduced in the semiconductor region (10), which control zones generate a drift field in a manner dependent on a control voltage that can be applied to the control zones, the control zones being of the same doping type as the semiconductor region (10).

Abstract: The invention relates to a device and a method for simulating a sequence for machining a workpiece on a machine tool. The invention is characterized by a holistic simulation approach. Particularly, a PLC control means 723 and a PLC sequence simulation means 725 assist in simulating the PLC movement sequences of the machine tool. This enables a realistic simulation of a machine tool in all its substantial aspects, resulting in considerable advantages especially in the field of training and during the determination of machine utilization times.

Abstract: The present invention relates to an optoelectronic sensor for demodulating a modulated photon flux (50), and to a measuring device, in particular for 3D distance measurement, having at least one optoelectronic sensor of this type. The optoelectronic sensor has at least two collecting zones (20, 22) introduced in a semiconductor region (10), which collecting zones are for example diffused into the semiconductor region and doped inversely with respect to the semiconductor region (10). The collecting zones (20, 22) serve for collecting and tapping off minority carriers generated upon penetration of a modulated photon flux (50). Furthermore, at least two control zones (32, 34) are introduced in the semiconductor region (10), which control zones generate a drift field in a manner dependent on a control voltage that can be applied to the control zones (32, 34), the control zones (32, 34) being of the same doping type as the semiconductor region (10).

Abstract: There is provided a circuit arrangement for switching a current on and off without overcurrent. The circuit arrangement includes a current source, a load associated with the current source, a switching transistor for switching the current source on and off, where the switching transistor has a parasitic capacitance between a control electrode and a first output electrode, and a shorting device between the control electrode and the first output electrode of the switching transistor for switching off the current source. The current can be used, for example, to drive a laser diode.

Abstract: There is provided an apparatus for generating an input signal for a cable that is mismatched on an output side. The apparatus has a line driver for connecting to an input of the cable via a resistor. The line driver includes a controller that, depending on a data input signal, is for triggering (a) a first switch to apply a supply voltage at an input of the resistor, (b) a second switch to apply a reference potential at the input of the resistor, and (c) a third switch to apply an auxiliary voltage at the input of the cable, all of them at predeterminable points in time, in order to minimize power dissipation in the resistor.

Abstract: There is provided a circuit arrangement for switching a current on and off without overcurrent. The circuit arrangement includes a current source, a load associated with the current source, a switching transistor for switching the current source on and off, where the switching transistor has a parasitic capacitance between a control electrode and a first output electrode, and a shorting device between the control electrode and the first output electrode of the switching transistor for switching off the current source. The current can be used, for example, to drive a laser diode.

Abstract: There is provided an apparatus for generating an input signal for a cable that is mismatched on an output side. The apparatus has a line driver for connecting to an input of the cable via a resistor. The line driver includes a controller that, depending on a data input signal, is for triggering (a) a first switch to apply a supply voltage at an input of the resistor, (b) a second switch to apply a reference potential at the input of the resistor, and (c) a third switch to apply an auxiliary voltage at the input of the cable, all of them at predeterminable points in time, in order to minimize power dissipation in the resistor.

Abstract: The invention relates an electronic switch for switching on and off high AC voltage between two connecting terminals. The switch includes two series-connected MOS floating gate transistors (20, 30; 20′, 30′), that can block and establish the transmission path between the applied high AC voltage connecting terminals. A charge storage device (24, 27, 34, 37; 24′, 34′, 60) stores charges and is connected to each gate of the MOS transistors. Each charge storage device (24, 27, 34, 37; 24′, 34′, 60) is assigned a charge feeding device (40, 50; 50) for applying a predetermined quantity of charge to the charge storage device (24, 34; 24′, 34′), which corresponds to a first switching state, and for removing a predetermined quantity of charge from the charge storage device, which corresponds to a second switching state. In this way, very low energy sensor outputs control high power AC voltage applied to the connecting terminals.

Abstract: The invention relates to a monolithic integrated circuit for controlling the light power of a laser diode optically coupled to at least one photodiode. Laser diodes are sensitive semiconductor components which can be destroyed in particular when current/voltage transients occur. It is an object of the invention, therefore to provide a monolithic integrated circuit for controlling the light power of a laser diode which can comprehensively protect a connected laser diode against destruction. To that end, the circuit has first terminals (40, 42, 44, 46, 48) for connecting at least one laser diode (50) and for connecting at least one photodiode (60) optically coupled thereto, an integrated device (90, 100) for controlling the control current of at least one connected laser diode (50), second terminals (20, 22) for applying a supply voltage, and an integrated device (150) connected to the second terminals and serving to suppress current and/or voltage transients.

Abstract: The invention is based on the object of making available a control and data transmission system which uses simple components to permit current-modulated data transmission via a serial bus, and whose components can be used in a flexible way. For this purpose, the control and data transmission system (50) has a controllable bus terminating device (30) for impressing a predetermined working current into the bus (42, 44). Each subscriber (1, 2) has a D.C.-coupled transmitter (60) for generating and emitting control signals and data signals which modulate the working current, and a D.C.-coupled receiver (20) for sensing and evaluating the working current which is modulated by the control signals and data signals.

Abstract: The invention relates to a method for operating an occupant safety device and a control unit for performing the method. To limit the power supplied to a triggering means from a storage element, the electrical power supplied after operating each triggering means is measured and after a definable power limiting value has been reached the power supplied to the triggering means is interrupted. The known methods based on the voltage at the storage element being the measure of the power supplied prove to be highly prone to error because these depend firstly on the charged state of the storage element and secondly very much on the conductor resistance so that incorrect control action can result.

Abstract: Process and circuit layout for using an independent capacitor for the momentary retention of an output voltage when an input voltage is lost. To facilitate a reduction in capacitance in independent circuits of this type at a constant amount of charge, the input voltage is transformed by a DC/DC up converter to a higher capacitor voltage, which is stored in the independent capacitor and the capacitor voltage is transformed by a DC/DC down converter to the output voltage for the load element, which is less than the capacitor voltage. As the DC/DC down converter can utilize capacitor voltages until the output voltage is reached, the residual voltage remaining in the independent capacitor (C) is no longer used. The independent time interval is correspondingly short. According to the invention, the capacitor is disconnected from the output of the DC/DC up-converter and connected to its input when the input voltage is less than a reference voltage.

Abstract: Described is a circuit arrangement for amplifying weak sensor currents, in particular the photoelectric current of a photoelectric diode (1), in which the photoelectric diode is connected to the base or gate electrode of a transistor (2). A constant current source (3) is connected into the collector circuit of the transistor (2). Connected between the collector and the base is a negative feedback which includes a current step-down circuit using at least one current mirror (6). The mother or sum current (I.sub.S) is coupled out as the amplified signal current.