Siemens Aktiengesellschaft

Stephan Jonas

Norbert Reichenbach

Markus Meier

Johann Seitz

Dirk Hertz

Bertrand Viala

Peter Käsbauer

Jürgen Trottmann

Juergen Trottmann

A power module includes a housing having a carrier plate, housing walls and a housing cover. Semiconductor elements and a temperature sensor unit having a temperature sensor are disposed in the interior of the housing on the carrier plate. Partitions disposed in the interior of the housing separate the temperature sensor unit from the semiconductor elements and enclose the temperature sensor unit in a chamber.

Power module

A motor starter for operating an electric motor connected to a multiphase power supply includes a semiconductor switch arranged in a current-carrying phase of the multiphase power supply, and an electromechanical switch arranged in parallel relation to the semiconductor switch in the current-carrying phase. The electromechanical switch includes a movable switching piece configured tiltable to reduce a current gradient in the semiconductor switch.

Motor starter, operating method, computer program product and motor starter arrangement

A motor starter includes a control unit and a first current path, via which energy can be supplied to a downstream electrical motor. The first current path includes a semiconductor switch and an electromechanical switch element, the semiconductor switch and the switch element being connected in series. In order to provide a cost-effective, safe motor starter, according to an embodiment of the invention the control unit is designed such that, in order to produce an energy supply via the first current path in a first step, it ensures that the voltage currently connected via the switch element, in respect of a previous opening of the switch element, lies below the allowable maximum blocking voltage of the semiconductor switch. Subsequently in a second step, the switch element first closes and then switches the semiconductor switch to be conductive.

Motor starter

A device for connecting to a power network includes a circuit board, a first input-side connection point, to which a first phase of the power network can be connected, a second input-side connection point, to which a second phase of the power network can be connected, and a first and second electrical conductor. The first conductor is connected to the first input-side connection point and the second conductor is connected to the second input-side connection point inside the device. The first conductor is routed as a conductor trace in an interior layer of the circuit board and includes a constriction. The second conductor is routed past the constriction such that electrical insulation existing between the constriction of the first conductor and the second conductor is destroyed in the case of a short-circuit current, to provide an electrically conductive connection between the first and second conductor exists.

Device for connecting to a power network and method for protecting such a device

A semiconductor switching module including a housing having openings to remove pressure which occurs during a short circuit. The housing openings, which can be sealed by thin walls dimensioned so that so that parts which carry current cannot be touched from outside and the walls can be destroyed or removed by the pressure which occurs during a short circuit.

Semiconductor switching module optimized for resistance to short circuits

A power semiconductor module is disclosed, including a plate-type substrate fitted with at least one component, and a base plate provided for dissipating heat from the component via the substrate. In at least one embodiment, a supporting apparatus, which keeps the substrate in thermal contact with the base plate, has a central pressure bolt adjoined by a plurality of stamps which extend in different directions and are intended to contact-connect the substrate, the individual stamps being at non-uniform distances from the substrate in the mechanically unloaded state of the pressure bolt.

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Neunburg, Germany

Stephan Jonas