Siemens Aktiengesellschaft

Siemens Vdo Automotive Ag

Folker Renken

Volker Karrer

Bernhard Lichtinger

Johannes Mehler

Florian Schupp

In order to improve the heat dissipation capacity in an electronic circuit configuration with one or more printed circuit boards thermally coupled by one flat side to a heat sink having at least one coolant duct, the flat side immediately adjoins the coolant duct.

Electronic circuit configuration having a printed circuit board thermally coupled to a heat sink

A control device for a three-phase machine contains an inverter, which can be connected on the input side to a direct voltage source and on the output side to the three-phase machine. The control device further has a reactive power converter, which on the output side is terminated by a capacitor and on the input side is disposed electrically parallel to the inverter, namely on the input side of the inverter.

Control device for a three-phase machine and method for operating the control device

A voltage source is formed by a series connection of a first energy accumulator (accumulator B) and a second energy accumulator (capacitor C). The voltage (UC) of the second energy accumulator (C) is adjusted in such a way that the sum of the voltages via the first energy accumulator (UB) and the second energy accumulator (UC) are the same as that of a pre-determined desired voltage (UVsoll).

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Wuppertal, Germany

Folker Renken