Abstract: The invention relates to a circuit device (100) for reducing common-mode interference of a power converter (60), the power converter (60) forming a common-mode interference source during operation. The circuit device (100) comprises at least one short-circuited additional line (50), which can be coupled to an input (10, 15) and an output (20, 25, 30) of the power converter (60). The additional line (50) conducts the interference currents produced by the common-mode interference source and returns said interference currents to the common-mode interference source.

Abstract: The invention relates to a circuit device (100) for reducing common-mode interference of a power converter (60), the power converter (60) forming a common-mode interference source during operation. The circuit device (100) comprises at least one short-circuited additional line (50), which can be coupled to an input (10, 15) and an output (20, 25, 30) of the power converter (60). The additional line (50) conducts the interference currents produced by the common-mode interference source and returns said interference currents to the common-mode interference source.

Abstract: The present invention provides an electrical filter device (1) for filtering a common-mode interference between a current source and a load, comprising:—a signal input (E), which comprises at least one first terminal (E1) and can be connected to the current source; —a signal output (A), which can be connected to the load; —a main stage (H0), having a first main inductor (2a), which comprises a coil with a first core (3), the first main inductor (2a) being connected to the first terminal (E1); and—an auxiliary stage (H1), having at least one first anti-interference capacitor (C1) and one first auxiliary inductor (4), the first auxiliary inductor (4) being connected between the first terminal (E1) and the first anti-interference capacitor (C1), the first auxiliary inductor (4) being inductively coupled to the first main inductor (2a).

Abstract: The present invention provides an electrical filter device (1) for filtering a common-mode interference between a current source and a load, comprising:—a signal input (E), which comprises at least one first terminal (E1) and can be connected to the current source;—a signal output (A), which can be connected to the load;—a main stage (H0), having a first main inductor (2a), which comprises a coil with a first core (3), the first main inductor (2a) being connected to the first terminal (E1); and—an auxiliary stage (H1), having at least one first anti-interference capacitor (C1) and one first auxiliary inductor (4), the first auxiliary inductor (4) being connected between the first terminal (E1) and the first anti-interference capacitor (C1), the first auxiliary inductor (4) being inductively coupled to the first main inductor (2a).

Abstract: 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.

Abstract: 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.