Abstract: A high-frequency amplifier for an active EMI filter with a symmetric class B emitter-follower output stage driven by a driver stage, with a sense output resistor. Both terminals of the sense resistor are brought to the noninverting, respecting inverting input of the driver stage through two dividers of the same ratio, in a global voltage feedback loop. The amplifier is configured to provide a high output impedance at 10 kHz and up to 100 MHz, a peak-to-peak output current of 2-10 ampere and a low quiescent current of less than 400 mA. The invention includes EMI filters with such a high-frequency current source, for example in the current-sense current-inject feedback configuration.

Abstract: Antenna having a housing (3), a core (1) and a coil (2), which is wound around the core (1), the core (1) with the coil (2) in a potting compound (5) being mounted in the housing (3), the potting compound (5) being softer than 40 Shore A.

Abstract: A choke comprising a core and a first power conductor, wherein the first power conductor comprises a first coil winding, having at least one complete turn about the core, characterized that at least one of the least one turns of the first coil winding comprises a rigid first busbar member and a rigid second busbar member.

Abstract: Antenna having a magnetic core (1) and a coil (2), which is wound around the magnetic core (1), the magnetic core (1) having at least two first partial cores (1.1) and at least one second partial core (1.2), the at least two first partial cores (1.1) being arranged one behind the other in a longitudinal direction (8) of the magnetic core (1), each of the at least two first partial cores (1.1) having a lateral side, the at least two first partial cores (1.1) having a first first partial core (1.1) and a second first partial core (1.1), the at least one second partial core (1.2) having a first second partial core (1.2), which is arranged on the lateral side of the first first partial core (1.1) and on the lateral side of the second first partial core (1.1) such that the first second partial core (1.2) overlaps at least partially with the first first partial core (1.1) and at least partially with the second first partial core (1.1).

Abstract: An active decoupling device for stabilizing the impedance on an electric line in a determined band of frequency. The decoupling device of the invention is inductively coupled to the power line and comprises a transformer with a primary winding connectable to the power line, and a secondary winding closed on a burden network. In an application, the invention, is used to decouple a smart meter from variations of the load impedance.

Abstract: Motor drive with a T-type filter with at least two three-phase differential mode reactors and three capacitors, wherein at least one of the three-phase differential mode reactor comprises an auxiliary coil (6) wound around three wound core elements (2.1, 2.2, 2.3) such that the common mode current is induced in the auxiliary coil (6).

Abstract: A filter for electromagnetic noise comprising: a printed circuit board (5) having conductor tracks, having a first side and having a second side opposite the first side; a first busbar (1), which is secured on the first side of the printed circuit board (5) and is electrically connected to at least one of the conductor tracks; and a second busbar (2), which is secured on the second side of the printed circuit board (5) and is electrically connected to at least one of the conductor tracks. The printed circuit board (5) is arranged between the first busbar (1) and the second busbar (2) for the insulation thereof.

Abstract: A filter for electromagnetic noise comprising: a printed circuit board (5) having conductor tracks, having a first side and having a second side opposite the first side; a first busbar (1), which is secured on the first side of the printed circuit board (5) and is electrically connected to at least one of the conductor tracks; and a second busbar (2), which is secured on the second side of the printed circuit board (5) and is electrically connected to at least one of the conductor tracks. The printed circuit board (5) is arranged between the first busbar (1) and the second busbar (2) for the insulation thereof.

Abstract: A power system for a vehicle comprising: a battery; a charging interface for receiving external power to charge the battery; a network connecting the battery and the charging interface, wherein at least a part of the network is a DC network; an active EMI filter between the battery and the charging interface in the DC network.

Abstract: A filter with three phases comprising for each phase an input terminal, an output terminal and a capacitor, wherein for each of the three phases the input terminal is electrically connected via a connection point to the output terminal, wherein the connection points of the three phases are electrically connected via the three capacitors in star and/or delta form, wherein the filter comprises a housing containing two coil blocks, wherein the housing comprises a first side and a second side opposite the first side, wherein the two coil blocks are arranged along a line between the first side and the second side, wherein a fan for cooling the two coil blocks is arranged on the first side of the housing, wherein the larger of the two coil blocks is arranged between the fan and the smaller of the two coil blocks.

Abstract: Filter component having a windingless magnetic toroidal core with an opening, a toroidal core housing in which the toroidal core is fastened using a snap-on mechanism, wherein the filter component is designed such that a conductor can be run windinglessly through the opening of the toroidal core fastened in the toroidal core housing.

Abstract: A harmonic cancelling interphase magnetic device (1) comprising a magnetic core of rectangular shape with three wound legs (14) and two non-wound legs (12), wherein the cross-section of said non-wound legs (12) is thinner than the cross-section of said wound legs (14). The magnetic device is designed for a front end multi-pulse rectifier or inverter. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line. Compare to known solutions, cost, material and dimensions of the magnetic device are significantly reduced.

Abstract: Active EMC filter connectable between an electric power source and an electric load. The filter has capacitors (C×N, C×U) connected between active conductors of the power source and a star point electric node. A filter capacitor (Cst, CstU) is connected between the star point and ground. A half-bridge has two switching devices (T3, T4; T1, T2) connected in cascade between a positive supply voltage and a negative supply voltage. A smoothing circuit (RgN, LgN; RgU, RgU) is connected between a common node of the switching devices and the star point. A control unit (Drive_N, Drive_U) drives the switching devices (T3, T4; T1, T2) digitally either in an ON-state or in an OFF-state, such as to limit a leakage current.

Abstract: A removable rocker switch unit (1) has a housing (7) and an ON- and an OFF-position removably fixed to the first end of the housing (2). The rocker switch (3) has two pairs of vertically and horizontally aligned connector elements (4). The housing (7) provides two chambers, each chamber for each phase of the rocker switch (7) including a first and a second connecting elements (5, 8) in each chamber arranged to be connected by a fuse (9), a current limiter (9) or both in a series connection and/or by a varistor (9) between connecting elements (5, 8) of the two different phases.

Abstract: An EMC power filter comprising a filter circuit and a conductive housing enclosing the filter circuit, wherein said filter circuit comprises: at least one electric conductor consisting in a rigid busbar for carrying an electric power, at least one ferromagnetic element for modifying the impedance of the electric conductor, at least one capacitor electrically connected between the electric conductor and the conductive housing. The housing has a tubular shape with a square cross section, allowing a rotation of the filter of 90° within the housing.

Abstract: An integrated magnetic for a low harmonics three-phase bidirectional front-end and also for AC/DC and DC/AC power converters. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line by using only one device which integrates a splitter and an inductor function. Compared to known solutions, cost, material and dimensions of the integrated magnetic device are reduced thanks to the magnetic core comprising three closed sub-assemblies and one or more jokes, separated by air-gaps from the sub-assemblies.

Abstract: Active EMC filter connectable between an electric power source and an electric load, comprising: capacitors (C×N, C×U) connected between active conductors of said power source and a star point electric node; a filter capacitor (Cst, CstU) connected between said star point and ground; a half-bridge comprising two switching devices (T3, T4; T1, T2) connected in cascade between a positive supply voltage and a negative supply voltage; a smoothing circuit (RgN, LgN; RgU, RgU) connected between a common node of said switching devices and said star point; and a control unit (Drive_N, Drive_U) driving said switching devices (T3, T4; T1, T2) digitally either in an ON-state or in an OFF-state, such as to limit a leakage current.

Abstract: An EMC filter circuit (1) has an essentially rigid busbar (3) for carrying an electric power to which is superposed a noise component in a conductive housing (2), which connected to ground. The filter (1) has two main elements inductors (4) increasing an impedance of the bus bar and capacitors (5) connected between the busbar (3) and the conductive housing (2). The capacitors (5) are inserted and tightly held solderless in position between the conductive housing (2) and the electric conductor (3). One advantage comes from the fact, that flat connection elements are arranged on both sides of the capacitors (5), which allow an easy manufacturing process.

Abstract: A rocker switch unit (1) with fuse comprising a housing (2); a rocker switch (3) lodged pivotally in the housing (2); at least a fuse lodged in the housing (2) and at least two connection elements (9) for connecting the rocker switch unit (1) with an external apparatus, wherein the two connection elements (9) are connected to each other by the fuse, when rocker switch (3) is in an ON-position. According to the invention the housing (2) provides at least one blind hole (4) for accommodating the fuse, wherein one terminal of the fuse serves as a first connection element for connecting the rocker switch unit (1) with the external apparatus. The rocker switch unit 1 can be used in any apparatus, in a network filter or as IEC entry plug.

Abstract: An integrated magnetic device for low harmonics three-phase front-end (1) comprising three magnetic sub-assemblies (30), wherein each magnetic sub-assembly (30) comprises a magnetic core without air-gaps, three or more wound limbs and at least five windings, three current inputs connectable to a three-phase power grid (100), at least nine current outputs, three for each current inputs, said current outputs being galvanically connected to said three current inputs and connectable to a load (200). The integrated magnetic device is designed for a low harmonics three-phase bidirectional front-end and also for AC/DC rectifier and DC/AC power inverters. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line by using only one device which integrates a splitter and an inductor function. Compared to known solutions, cost, material and dimensions of the integrated magnetic device are reduced.