Robert Boschgmbh

Dennis Burger

Norbert Schneider

Wolfram Kienle

Eckart Hoene

Guido Albert Rasek

Heiner Jacobs

Martin Lauersdorf

Ahmet Kuecuek

Konstantin Spanos

Roland Eidher

Matthias Raff

Frank Brielmann

Mark Hagel

Sebastian Engler

Hubert Merz

The invention relates to an electrical filter element () for filtering alternating voltage interference. The electrical filter element () comprises two dielectric circuit board substrates () having a magnetic core () arranged between the circuit board substrates. The magnetic core () has a material-free inner region (), in which electrical connection elements (-) are provided between the two dielectric circuit board substrates (). Furthermore, electrical connection elements () can also be provided between the two dielectric circuit board substrates () in an outer region of the magnetic core ().

Electrical filter element and electrical power converter

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 invention relates to an interference suppression apparatus () for an electronic component, having a positive high-voltage pole () and a negative high-voltage pole (), having at least one capacitance module (&#x2033;) with in each case at least one first capacitor (), via which the positive high-voltage pole () is connected to earth, and at least one second capacitor (), via which the negative high-voltage pole () is connected to earth, and at least one third capacitor () which is connected between the positive high-voltage pole () and the negative high-voltage pole (); and/or at least one inductance module () with in each case at least one common-mode inductor () which is wound around the positive high-voltage pole () and the negative high-voltage pole (); wherein the capacitance modules (&#x2033;) and/or inductance modules () are connected in series.

Interference suppression apparatus, electronic subassembly, and use of an interference suppression apparatus

The present invention relates to interference suppression of interference signals from an inverter. To this end, an inductor is provided at the input end of an inverter, in particular a pulse-controlled inverter. This inductor is preferably arranged between a DC voltage source and the inverter. Furthermore, two capacitors, one side of which is connected to an additional conductor, are provided between the inductor and the DC voltage source and further capacitors, one side of which is likewise connected to the additional conductor, are provided at the phase connections of the inverter.

A pulse-controlled inverter with a circuit providing a DC voltage between high-side and low-side inputs. In one example, the circuit includes a first high-side stray capacitance and inductance and a first low-side stray capacitance and inductance. A busbar arrangement is configured to connect the high-side input to a high-side connection and the low-side input to a low-side connection. The busbar arrangement includes a second high-side stray capacitance and inductance and a second low-side stray capacitance and inductance. An inverter module is coupled to the high-side connection and the low-side connection and configured to convert the DC voltage into an AC voltage. The inverter module has a third high-side stray capacitance and inductance and a third low-side stray capacitance and inductance. The sum of the first, second, and third high-side stray capacitance and inductance is substantially equal to the sum of the first, second, and third low-side stray capacitance and inductance.

Pulse-controlled inverter

Growing community of inventors

Friolzheim, Germany

Dennis Burger