Abstract: The invention relates to a DC-DC converter with a first input voltage connection and a second input voltage connection, between which an input DC voltage can be applied, a first converter device, which is designed to convert a first sub-voltage of the input DC voltage into an output DC voltage, and a second convertor device, which is coupled between the first input voltage connection and the second input voltage connection in a series circuit relative to the first convertor device on the input side and which is designed to convert a second sub-voltage of the input DC voltage into an output DC voltage. The DC-DC converter further comprises a control device which is coupled to the first convertor device and the second converter device and which is designed to operate the first converter device with a variable first sub-voltage and the second converter device with a constant second sub-voltage.

Abstract: The present invention relates to a contact arrangement (1), preferably for a power electronics system, comprising a printed circuit board (2) with a fastening hole (5), comprising a metal sleeve (8) which is inserted into the fastening hole (5), wherein the sleeve (8) makes contact with, preferably is soldered to, the printed circuit board (2), comprising a base (15) on which the sleeve (8) lies in order to make electrical contact, and comprising a fastening element (11) which protrudes through the sleeve (8), wherein one end of the fastening element (11) is fixedly connected to the base (15) and a head (12) is formed or arranged at the other end, wherein the head (12) of the fastening element (11) lies only on the sleeve (8) and not on the printed circuit board (2), and wherein the sleeve (8) projects beyond the printed circuit board (2) by way of a first projection (10) on that side which faces the base (15), wherein the first projection spaces apart the printed circuit board (2) and the base (15).

Abstract: The present invention relates to a contact arrangement (1), preferably for a power electronics system, comprising a printed circuit board (2) with a fastening hole (5), comprising a metal sleeve (8) which is inserted into the fastening hole (5), wherein the sleeve (8) makes contact with, preferably is soldered to, the printed circuit board (2), comprising a base (15) on which the sleeve (8) lies in order to make electrical contact, and comprising a fastening element (11) which protrudes through the sleeve (8), wherein one end of the fastening element (11) is fixedly connected to the base (15) and a head (12) is formed or arranged at the other end, wherein the head (12) of the fastening element (11) lies only on the sleeve (8) and not on the printed circuit board (2), and wherein the sleeve (8) projects beyond the printed circuit board (2) by way of a first projection (10) on that side which faces the base (15), wherein the first projection spaces apart the printed circuit board (2) and the base (15).

Abstract: The invention relates to a method for modulating the boost converter operating mode of a push-pull converter having a low-voltage-side circuit, having a first low-voltage-side switching device and a second low-voltage-side switching device; having a transformer having a high-voltage-side winding; and having a high-voltage-side circuit, which is configured as a full-bridge rectifier, having a first and a second rectification element which form a first half-bridge and a third and a fourth rectification element which form a second half-bridge; wherein the method comprises the steps of closing the first low-voltage-side switching device while simultaneously short-circuiting the high-voltage-side winding via the first or the fourth rectification element during a first time segment; opening the rectification element used for short-circuiting the high-voltage-side winding during a second time segment; opening the first low-voltage-side switching device and closing the second low-voltage-side switching device while s

Abstract: The invention relates to a method for modulating the boost converter operating mode of a push-pull converter having a low-voltage-side circuit, having a first low-voltage-side switching device and a second low-voltage-side switching device; having a transformer having a high-voltage-side winding; and having a high-voltage-side circuit, which is configured as a full-bridge rectifier, having a first and a second rectification element which form a first half-bridge and a third and a fourth rectification element which form a second half-bridge; wherein the method comprises the steps of closing the first low-voltage-side switching device whilst simultaneously short-circuiting the high-voltage-side winding via the first or the fourth rectification element during a first time segment; opening the rectification element used for short-circuiting the high-voltage-side winding during a second time segment; opening the first low-voltage-side switching device and closing the second low-voltage-side switching device whilst

Abstract: The invention relates to a DC-DC converter with a first input voltage connection and a second input voltage connection, between which an input DC voltage can be applied, a first converter device, which is designed to convert a first sub-voltage of the input DC voltage into an output DC voltage, and a second convertor device, which is coupled between the first input voltage connection and the second input voltage connection in a series circuit relative to the first convertor device on the input side and which is designed to convert a second sub-voltage of the input DC voltage into an output DC voltage. The DC-DC converter further comprises a control device which is coupled to the first convertor device and the second converter device and which is designed to operate the first converter device with a variable first sub-voltage and the second converter device with a constant second sub-voltage.