Robert Boschgmbh

Zf Friedrichshafen Ag

Audi Ag

Volkswagen Ag

Schaffner Emv Ag

Huawei Technologies Co., Limited

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Rogers Germany Gmbh

Ecpe Engineering Center for Power Electronics Gmbh

Eckart Hoene

Andreas Meyer

Norbert Schneider

Karsten Schmidt

Oleg Zeiter

Andre Domurat-Linde

Andre Hausberg

Dennis Burger

Daniel Fürst

Carsten Wintjen

Steffen Hartmann

Jürgen Götte

Thomas Rinkleff

Tobias Enzinger

Martin Lauersdorf

Roland Eidher

Ruben Kahle

Thomas Auspitzer

Christoph Marczok

Tina Thomas

Zhixiang Hu

Haitao Chen

Xingzhong Zhang

Peng Shuai

André Domurat-Linde

Thomas Baumann

The present invention relates to interference suppression of interference signals from an inverter. To this end, a current-compensated inductor is provided at the input end of an inverter, in particular a pulse-controlled inverter. This current-compensated inductor is preferably arranged between a DC voltage source and an intermediate circuit capacitor of the inverter. Polyphase inductors at the AC voltage output of the inverter can be dispensed with in this way.

Voltage converter, electric drive system and method for reducing interference voltages

The discovery concerns a rotor hub cover for a helicopter, whereby the rotor hub cover has been constructed as a rotational body with a dome-shaped cover and the rotor hub cover has performance and control electronic components, characterized by the arrangement of the performance electronic components and the control electronic components on a surface of the internal side or the dome-shaped cover.

Rotor head with integrated electronics for a helicopter

Embodiments relate to an electrical assembly () for converting a direct voltage into an alternating voltage, comprising a first supply voltage area () for distributing a first DC supply voltage, and a second supply voltage area () for distributing a second DC supply voltage. The electrical assembly () comprises at least one first power semiconductor () having an input terminal connected to the first supply voltage area () and an output terminal () connected to an alternating voltage output () of the assembly. The electrical assembly () further comprises at least one second power semiconductor () having an input terminal () connected to the second supply voltage area () and an output terminal connected to the alternating voltage output () of the assembly, wherein the first supply voltage area () extends on the side of the first power semiconductor () facing the input voltage terminal of the first power semiconductor (). Furthermore the second supply voltage area () extends on the side of the second power semiconductor () facing away from the input voltage terminal () of the second power semiconductor ().

Apparatus and electrical assembly for converting a direct voltage into an alternating voltage

Active EMC filter connectable between an electric power source and an electric load. The filter has capacitors (C&#xd7;N, C&#xd7;U) connected between active conductors of the power source and a star point electric node. A filter capacitor (Cst, CstU) is connected between the star point and ground. A half-bridge has two switching devices (T, T; T, T) connected in cascade between a positive supply voltage and a negative supply voltage. A smoothing circuit (RgN, LgN; RgU, RgU) is connected between a common node of the switching devices and the star point. A control unit (Drive_N, Drive_U) drives the switching devices (T, T; T, T) digitally either in an ON-state or in an OFF-state, such as to limit a leakage current.

Active EMC filter

Growing community of inventors

Berlin, Germany

Eckart Hoene