Abstract: Disclosed is a machine tool for machining a workpiece which includes a machining cell with a machining device for machining the workpiece and a transfer point for transferring a workpiece to be machined to the machining device or for outputting a finish-machined workpiece from the machining device. In order permit a high flexibility in such a machine when used in a production line, the machine tool includes a conveying device which transports a workpiece transferred to it between at least two take-over positions, while bypassing the machining device.

Abstract: Flyback converter has a regulating arrangement which is connected to an output and whose duty ratio is limited to a predetermined upper limit. A series circuit has a diode and an RC series circuit is connected to the rectifier diode of the main circuit (3) on the secondary side in order to supply the regulating arrangement with an auxiliary voltage which is greater than the output voltage. A further diode (44) leads from the series circuit to an output (a) of the auxiliary circuit (4). The flyback converter is suitable in particular for supplying ASICs, which require a relatively low supply voltage.

Abstract: The invention is directed to a machine tool having a crossrail, which carries a tool unit and which is braced by at least one column. The column includes a bottom section and an upper section, which can be moved telescopically relative to the bottom section and on which the crossrail is attached from the top. The supporting bodies make it possible that the upper section sits firmly in multiple positions from the top on the bottom section.

Abstract: A circuit arrangement for limiting the switch-on current and for providing an over voltage protection in switch mode power supply devices. The circuit arrangement has an input-end storage capacitor which forms a low-ohmic voltage source for a connected power supply arrangement. A power supply device of this type is to be provided with a circuit which both limits the switch-on current and also provides a protection against over voltages across the storage capacitor. This is achieved with the assistance of a field-effect transistor which is arranged between the supply voltage source and the storage capacitor and which is controlled both by an amplifier in terms of current limitation and by a delay element in terms of delayed switch-on. The power supply device is particularly suitable for plug-in assemblies having voltage inverters for the supply of electrical communications transmission technology equipment.