Abstract: During startup of a DC/DC converter having a high-frequency transformer whose primary winding is supplied with current from an input-side DC link via an inverter bridge having pulsed switches and whose secondary winding is used to charge an output-side DC link via a rectifier bridge. The switches of the inverter bridge are operated to load the output-side DC link, in a manner that deviates from a normal operation of the switches in order to limit the currents that flow in the DC/DC converter during startup of the DC/DC converter. Particularly, the switches of the inverter bridge are operated during startup of the DC/DC converter at a pulse width that is fixed during each of a limited number of stages of the startup, and have a duty cycle that is not more than 5 percent during each of the stages of the startup.

Abstract: A coupling element with an axis of rotation (A), about which the coupling element can rotate, having a plane-sided spur toothing extending axially with respect to the axis of rotation (A) and having teeth, the spur toothing being designed in such a way that it can engage into a plane-sided countertoothing of a second coupling element for the transmission of a torque about the axis of rotation and the first coupling element and the second coupling element are connectable fixedly in terms of rotation to one another. A coupling arrangement with coupling elements and a method for producing the coupling element is also disclosed.

Abstract: Certain example embodiments described herein relate to systems and/or methods for systems and/or methods for improved creation of metamodels. More particularly, certain example embodiments described herein relate to automating the creation of metamodels from one or more example models. In certain example embodiments, nodes, edges, and multiplicities of at least one model are automatically identified. A preliminary metamodel is created by adding a metaclass for each automatically identified node and edge. A connection is made between each said added metaclass edge to at least two said added metaclass nodes via first and second associations. Detection of multiple relations is performed by determining whether any of said added metaclass edges are connected to more than two added metaclass nodes. The preliminary metamodel is refined or optimized, e.g., so as to reduce the occurrence of multiple relations.

Abstract: A coupling arrangement having a rotational axis, about which the coupling arrangement can rotate, having: a first coupling element with an axially-extending flat-side spur toothing system having radially extending first teeth, a second coupling element with an axially-extending flat-side corresponding toothing system which engages axially into the spur toothing system and has radially-extending second teeth, and at least one means for bracing the first coupling element axially with the second coupling element, which coupling elements are fixedly connected fixedly to one another to rotate together about the rotational axis via the toothing systems to transmit torque. The teeth of at least one of the toothing systems have tooth tip lines that are curved convexly in the axial direction away from a tooth root.

Abstract: A coupling arrangement having a rotational axis, about which the coupling arrangement can rotate, having: a first coupling element with an axially-extending flat-side spur toothing system having radially extending first teeth, a second coupling element with an axially-extending flat-side corresponding toothing system which engages axially into the spur toothing system and has radially-extending second teeth, and at least one means for bracing the first coupling element axially with the second coupling element, which coupling elements are fixedly connected fixedly to one another to rotate together about the rotational axis via the toothing systems to transmit torque. The teeth of at least one of the toothing systems have tooth tip lines that are curved convexly in the axial direction away from a tooth root.

Abstract: During startup of a DC/DC converter having a high-frequency transformer whose primary winding is supplied with current from an input-side DC link via an inverter bridge having pulsed switches and whose secondary winding is used to charge an output-side DC link via a rectifier bridge. The switches of the inverter bridge are operated to load the output-side DC link, in a manner that deviates from a normal operation of the switches in order to limit the currents that flow in the DC/DC converter during startup of the DC/DC converter. Particularly, the switches of the inverter bridge are operated during startup of the DC/DC converter at a pulse width that is fixed during each of a limited number of stages of the startup, and have a duty cycle that is not more than 5 percent during each of the stages of the startup.

Abstract: Certain example embodiments described herein relate to systems and/or methods for systems and/or methods for improved creation of metamodels. More particularly, certain example embodiments described herein relate to automating the creation of metamodels from one or more example models. In certain example embodiments, nodes, edges, and multiplicities of at least one model are automatically identified. A preliminary metamodel is created by adding a metaclass for each automatically identified node and edge. A connection is made between each said added metaclass edge to at least two said added metaclass nodes via first and second associations. Detection of multiple relations is performed by determining whether any of said added metaclass edges are connected to more than two added metaclass nodes. The preliminary metamodel is refined or optimized, e.g., so as to reduce the occurrence of multiple relations.