Siemens Aktiengesellschaft

Siemens Mobility Gmbh

Eberhard Ulrich Krafft

Jan Weigel

Andreas Nagel

Rüdiger Kleffel

Jürgen Böhmer

Jurgen Bohmer

Stefan Hans Werner Schonewolf

Mark-Matthias Bakran

Stefan Hans Werner Schönewolf

Bernd Laska

Jurgen Böhmer

Martin Helsper

Stefan Boigk

Juergen Boehmer

Andreas Maerz

Stefan Hans Schonewolf

Stefan Hans Werner SCHÖNEWOLF

A circuit arrangement for a current converter has a half bridge with two series-connected power semiconductor switches in each case. The half bridge has a module with a power semiconductor switch in each case, a first DC voltage terminal, a second DC voltage terminal and an AC voltage terminal. A capacitor is connected in parallel with the half bridge and has a first and second capacitor terminals. A first busbar connects the first DC voltage terminal to the first capacitor terminal, and a second busbar connects the second DC voltage terminal to the second capacitor terminal. The first and the second busbars are arranged as to be spatially parallel and electrically insulated from each other. The circuit arrangement has a resistor connected in series with the capacitor, wherein the resistor is arranged in the first and/or second busbar.

Circuit arrangement for a current converter

A modular power converter with wide-bandgap semiconductors, in particular SiC semiconductors. The modular power converter has at least two base units. The base units are connected together on the input side, and each base unit has an input circuit on the input side and an output circuit on the output side. The input circuit and the output circuit are each formed by the wide-bandgap semiconductors arranged in a B6-bridge circuit. An intermediate circuit capacitor is connected in parallel with the input circuit and the output circuit forming an intermediate circuit. The input circuits of the base units or a sub-quantity of the base units are arranged in a series circuit. At least one inductor is arranged between each pair of input circuits.

Modular power converter

A phase module for a power converter includes first and second busbars and at least two semiconductor modules. The first busbar is connected to AC voltage connections of the semiconductor modules. The second busbar is connected to DC voltage connections of the semiconductor modules. At least one section of the first and second busbars is arranged at a distance to one another, the value of which is less than half the value of the distance between the AC voltage connection and the DC voltage connection of one of the semiconductor modules. At least one of the busbars has a separator arranged at a right angle on the remaining part of the busbar and connecting the busbar to at least one of the DC voltage connections or one of the AC voltage connections of one of the semiconductor modules. The separator is arranged along a surface of the one semiconductor module.

Phase module for a power converter

A control device for driving a bipolar switchable power semiconductor component is designed to apply an electrical voltage to a gate terminal of the power semiconductor component and to reduce the electrical voltage for turning off the power semiconductor component from a first voltage value to a second voltage value. The control device is designed, for turning off the power semiconductor component, firstly to reduce the electrical voltage from the first voltage value to a desaturation value and then to reduce the electrical voltage from the desaturation value to the second voltage value. The desaturation value is greater than a pinch-off voltage of the power semiconductor component.

Control device for driving a bipolar switchable power semiconductor component, semiconductor module and method

A busbar arrangement for making electrical contact with a semiconductor module includes at least two busbars overlapping in an overlap region and electrically insulated from one another. Each busbar includes a web having a connection element, with the webs of the busbars being arranged without an overlap. The webs are oriented such as to define a first axis which runs through the connection element of an associated one of the webs and a point of a transition of the web to the overlap region of the busbar arrangement, and which intersects a second axis which is formed by a connection between two connection elements of the webs at an angle between 0&#xb0; and 45&#xb0;. The busbar arrangement includes an insulating region to reduce or prevent a current in the web in a direction perpendicular to the second axis. The overlap region and the webs are each located in one plane.

Busbar arrangement

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Nuremberg, Germany

Eberhard Ulrich Krafft