Abstract: A method for providing control commands for producing a number of three-dimensional objects by an additive layer-wise building device. The method can include a step of providing a computer-based model of the number of objects that geometrically describes the objects, a step of modifying the computer-based model such that for the geometric description of the number of objects a location is defined as a common origin of coordinates, and a step of generating control commands for a set of control commands for controlling the production of the number of objects by the additive layer-wise building device on the basis of the modified computer-based model.

Abstract: A clocked electronic energy converter having an electronic switching element, at least two electrical energy storage devices, a terminal for connecting an electrical energy source, a terminal for connecting an electrical energy sink, a clock generator for controlling and operating the electronic switching element during switching operation and an adjusting unit which provides a first signal for adjusting the power-to-be-transmitted by the energy converter, is disclosed. The clock generator is designed to adjust the power-to-be-transmitted by the energy converter in a first output range by means of the switch-on time of the electronic switching element and, in a second output range in which the power-to-be-transmitted by the energy converter is less than in the first output range, to adjust the power-to-be-transmitted by the energy converter in the second output range by a combination of the switch-on time and the supplemental switch-off time, the supplemental switch-off time being constant.

Abstract: According to the present disclosure, a circuit arrangement for operating semiconductor light sources includes: a power input for inputting an AC input voltage, an output having a first output terminal, and a second output terminal, which is designed to connect a string of semiconductor light sources, a control input for controlling the operation of the circuit arrangement with a control signal, a rectifier circuit for converting the AC input voltage into a rectified voltage, a converter circuit for transforming the rectified voltage into a current which is suitable for the semiconductor light sources, a first switch arranged between the converter circuit and the output, for the switching of the current through the semiconductor light sources, and a first diode arranged between the first switch and the output, or between the converter circuit and the first switch.

Abstract: A clocked electronic energy converter having an electronic switching element, at least two electrical energy storage devices, a terminal for connecting an electrical energy source, a terminal for connecting an electrical energy sink, a clock generator for controlling and operating the electronic switching element during switching operation and an adjusting unit which provides a first signal for adjusting the power-to-be-transmitted by the energy converter, is disclosed. The clock generator is designed to adjust the power-to-be-transmitted by the energy converter in a first output range by means of the switch-on time of the electronic switching element and, in a second output range in which the power-to-be-transmitted by the energy converter is less than in the first output range, to adjust the power-to-be-transmitted by the energy converter in the second output range by a combination of the switch-on time and the supplemental switch-off time, the supplemental switch-off time being constant.

Abstract: A clocked electronic energy converter may include an electronic switching element, at least two electrical energy storage devices, connections for connecting an electrical energy source and for connecting an electrical energy sink, a clock generator for controlling the electronic switching element and a switch-on time unit for generating a first signal for the clock generator, which switch-on time unit sets the power of the energy converter to be transmitted in a first power range by the first signal. The switch-on time unit generates a first signal representing a switch-on time for the clock generator in a second power range in which the power lower can be set than in the first power range, and the clocked electronic energy converter has a switch-off time unit generating in the second power range a second signal for the clock generator, which signal represents a switch-off time depending upon the power to be transmitted.

Abstract: A method for providing control commands for producing a number of three-dimensional objects by an additive layer-wise building device. The method can include a step of providing a computer-based model of the number of objects that geometrically describes the objects, a step of modifying the computer-based model such that for the geometric description of the number of objects a location is defined as a common origin of coordinates, and a step of generating control commands for a set of control commands for controlling the production of the number of objects by means of the additive layer-wise building device on the basis of the modified computer-based model.

Abstract: A swap platform support for an additive layer-wise building device, which is configured to produce at least one three-dimensional object on a swap platform (121) by solidifying layer by layer a building material in powder form at positions that correspond to the at least one object in the respective layers comprises a clamping device (115, 116) for detachably fixing a position of the swap platform (121) with respect to the position of the swap platform support, a temperature control system (111) configured to supply heat energy to at least a portion of its environment and/or to remove heat energy from at least a portion of its environment and a pressing device (112) which is suited to press at least a part of the temperature control system (111) against a swap platform (121) when the swap platform is clamped in the clamping device (115, 116).

Abstract: According to the present disclosure, a circuit arrangement for operating semiconductor light sources includes: a power input for inputting an AC input voltage, an output having a first output terminal, and a second output terminal, which is designed to connect a string of semiconductor light sources, a control input for controlling the operation of the circuit arrangement with a control signal, a rectifier circuit for converting the AC input voltage into a rectified voltage, a converter circuit for transforming the rectified voltage into a current which is suitable for the semiconductor light sources, a first switch arranged between the converter circuit and the output, for the switching of the current through the semiconductor light sources, and a first diode arranged between the first switch and the output, or between the converter circuit and the first switch.

Abstract: Various embodiments may relate to a power supply unit including an output for outputting a current, a communications line, a current-measuring device and a microcontroller including an analog-to-digital converter. The current-measuring device generates a current on the communications line which is proportional to the conductance of a current-setting resistance, the current is convertable into a digital value by the analog-to-digital converter, the power supply unit assumes various operating states based on the digital value of the measured current, and at least one light source module is connectable to the output, wherein the at least one light source module has the current-setting resistance, which is connectable to the communications line. Various embodiments may further relate to a light source module including an input, a communications line and a current-setting resistance for setting the current applied to the light source module.

Abstract: A two-stage clocked electronic energy converter for transmitting an electrical power may include a first connection for connecting an electrical energy source, a second connection for connecting a load, and an intermediate circuit capacitor, wherein a first stage of the energy converter has a first converter in the boost operating mode, which first converter converts an electrical voltage at the first connection into an electrical intermediate circuit voltage at the intermediate circuit capacitor, and wherein the intermediate circuit capacitor supplies a second stage of the energy converter, which second stage supplies the load with electrical energy controllably in terms of the power, wherein a control unit sets the power drawn from the intermediate circuit capacitor by the second stage in such a way that an instantaneous minimum of the intermediate circuit voltage that is brought about by the drawing of power is greater than a predefined voltage comparison value.

Abstract: A clocked electronic energy converter may include an electronic switching element, at least two electrical energy storage devices, connections for connecting an electrical energy source and for connecting an electrical energy sink, a clock generator for controlling the electronic switching element and a switch-on time unit for generating a first signal for the clock generator, which switch-on time unit sets the power of the energy converter to be transmitted in a first power range by the first signal. The switch-on time unit generates a first signal representing a switch-on time for the clock generator in a second power range in which the power lower can be set than in the first power range, and the clocked electronic energy converter has a switch-off time unit generating in the second power range a second signal for the clock generator, which signal represents a switch-off time depending upon the power to be transmitted.

Abstract: Various embodiments may relate to a power supply unit including an output for outputting a current, a communications line, a current-measuring device and a microcontroller including an analog-to-digital converter. The current-measuring device generates a current on the communications line which is proportional to the conductance of a current-setting resistance, the current is convertable into a digital value by the analog-to-digital converter, the power supply unit assumes various operating states based on the digital value of the measured current, and at least one light source module is connectable to the output, wherein the at least one light source module has the current-setting resistance, which is connectable to the communications line. Various embodiments may further relate to a light source module including an input, a communications line and a current-setting resistance for setting the current applied to the light source module.

Abstract: Various embodiments provide a method for ascertaining a type of a gas discharge lamp using an electronic ballast for operating different types of gas discharge lamps, wherein the different types of gas discharge lamps differ in at least one operating parameter, wherein the method may include: a) preheating at least one filament in the gas discharge lamp for a predetermined preheating time; b) measuring a physical variable which is characteristic for the type of the gas discharge lamp at the end of the preheating time and providing the measurement value of said variable; and c) ascertaining the lamp type on the basis of the measurement value which is provided, wherein the preheating time is increased by a predetermined time period and the b) and c) are repeated if the lamp type in c) cannot be ascertained uniquely. Moreover, various embodiments provide an electronic ballast for operating at least two different types of gas discharge lamps which have at least one different operating parameter.

Abstract: An electronic control gear for operating at least one of at least one LED and at least one discharge lamp is provided. It may include a first terminal for coupling to a phase of an AC voltage supply; a second terminal for coupling to the neutral conductor of the AC voltage supply; a control input for coupling in a control signal of a control apparatus; a first output for coupling to the LED; a second output for coupling to the discharge lamp; a first driver circuit for the LED; a second driver circuit for the discharge lamp; an evaluation apparatus for evaluating the control signal at the control input, the evaluation apparatus comprising a microcontroller, which activates said driver circuits depending on the control signal, wherein a first capacitance is coupled between the second terminal and the control input.

Abstract: Various embodiments provide an electronic ballast for operation of at least one discharge lamp, with the electronic ballast having an apparatus for power factor correction with a voltage converter. The voltage converter itself includes an inductance, a diode and a switch. A control apparatus, which produces a square-wave signal as a control signal to the switch of the apparatus for power factor correction, includes an I regulator. This produces a first component of the on time of the control signal. In order to react to short-term power demands in the load circuit for example on ignition of the discharge lamp, an electronic ballast furthermore may include a power determining apparatus, which is coupled to the control apparatus, with the control apparatus being designed to vary the control signal as a function of the power consumed in the discharge lamp.

Abstract: An exemplary switching unit is disclosed for operation of a rocker lever of a circuit breaker, which is provided on the circuit breaker. The switching unit has a drive unit with a free-play distance, such that a slide of the drive unit, which slide is intended for operation of the rocker lever, does not impede the movement of the rocker lever.

Abstract: An electronic ballast for operating at least two discharge lamps is provided, which may include a starting detection apparatus for detecting whether one of the discharge lamps has been started; wherein a drive circuit includes an input, which is coupled to a starting detection apparatus, wherein a threshold value entry apparatus is designed to enter a second threshold value for a setpoint value of a total current through at least two inductances, wherein the second threshold value has a smaller magnitude than a first threshold value; and wherein the drive circuit is designed to drive a first electronic switch and a second electronic switch taking into consideration the first threshold value as setpoint value prior to detection of the starting of a discharge lamp by the starting detection apparatus, and taking into consideration the second threshold value as setpoint value.

Abstract: An electronic ballast for operating at least one discharge lamp may include an input for coupling to an input voltage; a load circuit with an output, the load circuit having a bridge circuit; an intermediate circuit capacitor that is coupled to the input of the load circuit; a transformer that is coupled between the input of the ballast and the capacitor, the transformer having a transformer switch; a control apparatus for driving the switch; and a monitoring apparatus for monitoring at least one value correlated with the input voltage, the control apparatus being designed to deactivate the driving of the switch upon detection of a deactivation criterion; and a voltage measuring apparatus for measuring the intermediate circuit voltage, the control apparatus being designed to reactivate the driving of the switch after a deactivation phase when the sum of input and intermediate circuit voltage has dropped below a prescribable threshold value.

Abstract: A method for operating a circuit arrangement is provided. The method may include coupling a second connection of a control device to a connection that provides an alternating signal during operation of the circuit arrangement; in the control device: generating a trigger signal for the control electrode of the mode switch that is correlated with the sum signal from the signal at the connection for providing an alternating signal and the control signal; and providing the trigger signal at the output of the control device.

Abstract: An electronic control gear for operating at least one of at least one LED and at least one discharge lamp is provided. It may include a first terminal for coupling to a phase of an AC voltage supply; a second terminal for coupling to the neutral conductor of the AC voltage supply; a control input for coupling in a control signal of a control apparatus; a first output for coupling to the LED; a second output for coupling to the discharge lamp; a first driver circuit for the LED; a second driver circuit for the discharge lamp; an evaluation apparatus for evaluating the control signal at the control input, the evaluation apparatus comprising a microcontroller, which activates said driver circuits depending on the control signal, wherein a first capacitance is coupled between the second terminal and the control input.