Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Siemens Aktiengesell Schaft

Monika Poebl

Thomas Komma

Manuel Blum

Mirjam Mantel

Walter Kiffe

Michael Finkenzeller

A DC-to-DC converter includes a primary side of a transformer element of the DC-to-DC converter and a secondary side of the transformer element, the primary side having a first rectifier circuit and a primary-side resonant circuit and the secondary side having a second rectifier circuit and a secondary-side stored energy source, the transformer element being arranged between the primary side and the secondary side in order to transfer electrical energy, the secondary side having a secondary resonant circuit capacitor.

DC-to-DC converter having a secondary resonant circuit capacitor, and method for operating a DC-to-DC converter

A charging configuration for the inductive wireless energy transfer to a receiver coil of an electrically operated vehicle. A first circularly wound electrically conductive coil extends in a plane and has a first central opening in the center of the first coil. A second circularly wound electrically conductive coil extends in a plane, coplanar with the first coil, and has a second central opening formed in its center. A ferrite core is supported on a shielding sheet with a rectangular base plate together with the coplanar coils. The coils are arranged in a coil holder on the shielding sheet such that a distance of between 15 and 25 mm remains between the shielding sheet and the bottom edge of the coils.

Charging configuration for the inductive wireless emission of energy

A charging station for an electrically powered vehicle has a connection for an electrical energy source, an inverter and an electronic coil connected to the inverter for wireless energy-transferring coupling of the electrically powered vehicle. The inverter is configured to apply an alternating electric voltage to the electronic coil in resonant operation. The electronic coil is connected to the inverter by way of a compensating circuit with a settable passive electronic energy storage device. The compensating circuit is configured to set a frequency of the alternating voltage by means of the settable passive electronic energy storage device.

Charging station for an electrically powered vehicle, and charging method

The disclosure relates to electrical converters. The teachings thereof may be embodied in a circuit assembly for an electrical converter. For example, a circuit assembly for an electrical converter may include a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch. The respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board.

Fast-switching circuit assembly for a converter

A circuit arrangement for detecting a zero crossing of an alternating current is provided. The circuit arrangement includes a load through which the alternating current can flow, and an evaluation unit connected to the load and configured to evaluate an electrical voltage formed at the load, and to determining zero currents. The load comprises a capacitor through which the alternating current or a current to be measured derived therefrom can flow, and the evaluation unit is configured to account for a phase shift caused by the capacitor for determining the zero currents.

Determining a zero current of an alternating current

The present disclosure relates to electric converters. The teachings thereof may be embodied in an electric converter to transfer an electric power of more than 3 kilowatts comprising a half-bridge with at least two parallel circuits. Each of the parallel circuits includes a plurality of semiconductor switches. Each of the parallel circuits includes at least two base circuits arranged next to one another on a common printed circuit board. Each of the respective base circuits includes one of the plurality of semiconductor switches and a gate driver circuit for the semiconductor switch. Each gate driver circuit is electrically connected to a gate of the semiconductor switch by a control line. In each of the parallel circuits, a shortest control line and a longest control line differ from one another with respect to length by no more than the factor of 1.5.

Power converter having parallel-connected semiconductor switches

An energy intake apparatus for a motor vehicle can be operated electrically, with an induction coil, which is configured to charge an energy storage unit of the motor vehicle. The energy intake apparatus contains a shield apparatus, by which the induction coil can be shielded from the motor vehicle. The shield apparatus has at least one first shield component separating the induction coil from the motor vehicle in the transverse vehicle direction and/or in the longitudinal vehicle direction and at least one second shield component separating the induction coil from the motor vehicle upward in the vertical vehicle direction. The second shield component being connected to the first shield component.

Energy intake apparatus for a motor vehicle that can be operated electrically and method for operating an energy intake apparatus for a motor vehicle that can be operated electrically

An electrically powered vehicle has a drive apparatus which includes an electric machine and an electrical energy storage device connected to the electric machine. A charging device is connected to the electrical energy storage device for the wireless transfer of energy by way of an alternating magnetic field. For that purpose, the charging device has an electronic coil which interacts with the alternating magnetic field. The electronic coil is connected to an adjustable compensating circuit.

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Munich, Germany

Monika Poebl