Abstract: An inductor module comprising one or several wound inductors in a metallic housing, held in place by potting compound, wherein a surface of the metallic housing is a mechanical and thermal interface to a heat sink, and the distance between the coils and the inner side of the surface is predetermined by a suitable insulating space of potting compound. The invention may be used as PFC inductor in an on-board vehicle charger, among other uses.

Abstract: An active filter for suppressing an unwanted noise component from an electric supply line connecting a noise source and a load device, the active filter comprising a first active stage and a second active stage on the supply line, wherein the first active stage is between the noise source and the second active stage, wherein the first active stage has a first attenuation, and the second active stage has a second attenuation, characterized in that the first attenuation is lower than the second attenuation.

Abstract: Electromagnetic interference filter for suppressing interferences in a DC network, the network comprising a source device powering a load device via a bus connectable to the source device at an input side and to the load device at an output side. The EMI filter being connected to the bus and comprising an active filter circuit having an active filter bandwidth and being configured to sense a noise component superimposed in the bus and inject a cancelling noise in the bus to suppress said noise component. The EMI filter further comprises a passive circuit including a source circuit connected to the bus at the input side and a passive load circuit to the bus connected at the output side, the passive circuit being configured to provide, at least at a cutoff frequency of the active filter bandwidth, a source impedance at the input side that differs from a load impedance at the output side by a factor of at least two.

Abstract: The invention relates to an electromagnetic interference (EMI) filter (100), having line-side terminals (L1-L3) for connecting to an electric supply(S) and load-side terminals (L1?-L3?) for connecting to a load device (L), the EMI filter (100) comprises a load-side passive EMI filter stage (1) connected 5 to the load-side terminals (L1?-L3?) and is configured to suppress common-mode and differential-mode noise. The EMI filter (100) also comprises a line-side active EMI filter stage (3) connected to the line-side terminals (L1-L3) and is configured to suppress differential-mode noise, and at least one intermediate active EMI filter 10stage (2) located between the load-side EMI filter stage (1) and the line-side EMI filter stage (3), configured to suppress common-mode noise. The invention relates also to a method for manufacturing the EMI filter (100).

Abstract: According to the present invention there is provide an antenna comprising a core, and a coil, wherein the core comprises a plurality of magnetic bricks, characterized in that each of the magnetic bricks have at least one convex surface. There is further provided a method of manufacturing said antenna.

Abstract: The invention relates to a winding carrier for receiving windings of a coil and housing a magnetic core of an antenna, the winding carrier comprises: a main carrier member extending along a longitudinal axis (x) between a first end and a second end opposite the first end; and an accessory carrier member movably engaged with the main carrier member, wherein the main carrier member and the accessory carrier member each is configured to hold a multitude of windings, wherein the main carrier member and the accessory carrier member are configured complementary to each other for guiding a movement of the accessory carrier member along the longitudinal axis (x) for positioning the accessory carrier member between an initial position and an end position. The invention further relates to an antenna and a method for manufacturing an antenna.

Abstract: A high-frequency current source with a symmetric bipolar output stage piloted by an active bias network with an extended temperature range. The source is configured to provide a high impedance at 1 MHz and above. The invention includes such active EMI filters with such a high-frequency current source, for example in the current-sense current-inject feedback configuration.

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.