Abstract: A method for controlling a DC-DC converter having a primary-side full-bridge, a secondary-side full-bridge and a transformer, which is arranged between the primary-side full-bridge and the secondary-side full-bridge, wherein the method includes controlling a diagonal branch in the secondary-side full-bridge while the primary side of the transformer is short-circuited by means of the primary-side full-bridge and controlling a diagonal branch in the primary-side full-bridge.

Abstract: A dual active bridge converter is provided with a control variable that is superimposed with an additional ripple component to control the dual active bridge converter with a combination of the control variable and the additional ripple component.

Abstract: A method for a phase-shifted full-bridge DC-DC converter. The method controls the DC-DC converter for energy transmission from a secondary side to a primary side of the DC-DC converter. A transformer is arranged between the primary side and the secondary side of the DC-DC converter. The method comprises a switching state, in which the terminals of the primary side of the transformer are electrically connected to one another, and in which, furthermore, the terminals of the secondary side of the transformer and the terminals of the secondary side of the DC-DC converter are electrically connected to one another.

Abstract: The invention relates to a power converter (300) which is designed to receive an input voltage (350) and output and output voltage (360). The power converter comprises multiple switches (371, . . . , 387). The power converter also comprises a control unit which is connected to the multiple switches, wherein the control unit is designed to control the multiple switches of the power converter based on data in a database using an input parameter or an output parameter. The invention also relates to a method for operating a power converter. The method comprises the step of controlling multiple switches of the power converter using a control unit, which is connected to the multiple switches, based on data in a database using an input parameter or an output parameter.

Abstract: Examples provide a system and method for driving a DC-DC voltage with a primary-side full bridge and a transformer arranged between the primary-side full bridge and a secondary side of the DC-DC voltage converter. A first diagonal branch and a second diagonal branch are driven alternately. In a first switching sequence between driving the first diagonal branch and driving the second diagonal branch, the connecting elements of a primary side of the transformer are electrically connected to one another using the upper switching elements of the primary-side full bridge. In a second switching sequence between driving the first diagonal branch and driving the second diagonal branch, the connecting elements of the primary side of the transformer are electrically connected to one another using the lower switching elements of the primary-side full bridge. The primary-side full bridge is driven alternately according to the first switching sequence and the second switching sequence.

Abstract: The present invention relates to a circuit arrangement and to an actuating method for a DC voltage converter, in particular a DC voltage converter with phase-shifted full-bridge topology, wherein power can also be transmitted from the primary side to the secondary side when the electrical voltage on the primary side undershoots the product of the electrical voltage on the secondary side and the transmission ratio of a transformer in the DC voltage converter. In this way, for example, a capacitor on the primary side of the DC voltage converter can be discharged to a safe, low voltage level.

Abstract: The present invention relates to the control of a dual active bridge converter. In particular, it is provided that a control variable for the dual active bridge converter is superimposed with an additional ripple component and to control the dual active bridge converter with a combination of the control variable and the additional ripple component.

Abstract: The invention relates to a transformer core with at least one additional leg. Said additional leg is used to form a leakage path. In order to optimize the installation space and for easier connection of the transformer windings, the transformer legs and the additional leakage path legs are not arranged along a common line.

Abstract: The invention relates to a power converter (300) which is designed to receive an input voltage (350) and output and output voltage (360). The power converter comprises multiple switches (371, . . . , 387). The power converter also comprises a control unit which is connected to the multiple switches, wherein the control unit is designed to control the multiple switches of the power converter based on data in a database using an input parameter or an output parameter. The invention also relates to a method for operating a power converter. The method comprises the step of controlling multiple switches of the power converter using a control unit, which is connected to the multiple switches, based on data in a database using an input parameter or an output parameter.

Abstract: The present invention relates to a power transmission in a DC-DC converter, in particular a phase-shifted full-bridge DC-DC converter from the secondary side to the primary side. In particular, an additional switching state which can reduce the power dissipation of the switching elements in the DC-DC converter, is provided.

Abstract: The present invention relates to a control method for a DC-DC converter for transferring power from a primary side to a secondary side of the DC-DC converter. A special control method which makes it possible to switch on the switching elements in the DC-DC converter essentially gently is proposed. Thus, the losses during the activation of the switching elements can be minimised.

Abstract: The present invention relates to a circuit arrangement and to an actuating method for a DC voltage converter, in particular a DC voltage converter with phase-shifted full-bridge topology, wherein power can also be transmitted from the primary side to the secondary side when the electrical voltage on the primary side undershoots the product of the electrical voltage on the secondary side and the transmission ratio of a transformer in the DC voltage converter. In this way, for example, a capacitor on the primary side of the DC voltage converter can be discharged to a safe, low voltage level.

Abstract: The present invention relates to the driving of a DC-DC voltage converter (1), such as for example a phase-shifted full-bridge DC-DC voltage converter, it being possible to switch between two predefined switching sequences. It is thereby possible to achieve even loading of the switching elements (M1-M4) of a primary-side full bridge (10) of the DC-DC voltage converter (1). Thus, by way of example, in the first switching sequence (S1), the switching elements (M1, M3) of a first half bridge of the primary-side full bridge (10) may be hard-switched, whereas, in the second switching sequence (S2), the switching elements (M2, M4) of a second half bridge of the primary-side full bridge (10) may be hard-switched.

Abstract: The invention relates to a transformer core with at least one additional leg. Said additional leg is used to form a leakage path. In order to optimize the installation space and for easier connection of the transformer windings, the transformer legs and the additional leakage path legs are not arranged along a common line.

Abstract: The invention relates to a method for the contactless charging or discharging of a battery-operated object (4) via a magnetically coupled coil pair, comprising a primary coil (6) of a charging/discharging station (2) and a secondary coil (8) of the object (4), wherein: in a first step, the object (4) is transferred into a reference position in relation to the charging/discharging station (2); in a second step, a reference parameter is determined in the reference position; in a third step, a lateral desired offset of the object (4) to the charging/discharging station (2) is determined, based on the reference parameter; and in a fourth step, based on the lateral desired offset, the object (4) is transferred into a charging/discharging position in relation to the charging/discharging station (2) in which position the contactless charging or discharging is carried out.

Abstract: The invention relates to a method for the contactless charging or discharging of a battery-operated object (4) via a magnetically coupled coil pair, comprising a primary coil (6) of a charging/discharging station (2) and a secondary coil (8) of the object (4), wherein: in a first step, the object (4) is transferred into a reference position in relation to the charging/discharging station (2); in a second step, a reference parameter is determined in the reference position; in a third step, a lateral desired offset of the object (4) to the charging/discharging station (2) is determined, based on the reference parameter; and in a fourth step, based on the lateral desired offset, the object (4) is transferred into a charging/discharging position in relation to the charging/discharging station (2) in which position the contactless charging or discharging is carried out.

Abstract: Systems and methods are described for selectively applying DC power from a variable voltage DC power bus to a DC load. The ballast includes at least one switch coupled between the DC power bus and the DC load. A processor is coupled to the at least one switch and controls the operation of the at least one switch. A non-transient computer-readable memory stores instructions that are executed by the processor to control the operation of the processor. The processor determines a voltage on the variable voltage DC power bus and defines a pulse-width modulate power control signal based on the determined voltage. The at least one switch is then operated based on the pulse-width modulated power control signal to apply DC power from the DC power bus to the DC load at a first frequency.