Abstract: An inductive filtering device includes a plurality of grouped electrical conductors and at least two toric magnetic cores, each formed around a central void, the two magnetic cores having different magnetic lengths, the electrical conductor being wound together around both magnetic cores by passing through the central voids of both magnetic cores.

Abstract: A common mode choke coil is configured in which end portions of first and second wires are connected to first and second terminal electrodes, end portions of third and fourth wires are connected to third and fourth terminal electrodes, and at least a part of each of the first, third, fourth and second wires is wound around a winding core portion to form first, second, third and fourth layers. Also, a common mode choke coil is configured in which end portions of first and second wires are connected to first and second terminal electrodes, end portions of a third wire are connected to third and fourth terminal electrodes, and at least a part of each of the first, third, and second wires is wound around a winding core portion to form first, second, and third layers.

Abstract: A device includes an EMC (electromagnetic compatibility) filter, a frequency converter coupled to the EMC filter, and a motor coupled to the frequency converter via a motor cable. A leakage current compensator includes a leakage current detector and a compensation current generator configured to generate a compensation current that is directed against the leakage current and is overlaid on the leakage current in such a way that the leakage current is reduced.

Abstract: A common mode filter for reducing differential mode signal converting to common mode signal comprising: a core-cylinder, a first coil, and a second coil; wherein two ends of the core-cylinder respectively extend and set with a first flange and a second flange; wherein m1, m2, and m3 turns and n1, n2, and n3 turns are respectively and sequentially wound and set on the first winding portion, the second winding portion, and the third winding portion of the first winding area, the second winding area, and the third winding area of the first coil and the second coil. Therefore, the present invention can effectively reduce the mode conversion characteristic (Scd), and can also improve the noise reduction performance of the product; thereby greatly upgrading the practicality of the present invention; and the present invention has a simple process, therefore the product yield can be further upgraded to achieve the effect.

Abstract: A filter circuit for reducing feedback of a consumer on an energy supply is disclosed. This filter circuit includes a multipolar input, a line choke, and a multipolar output, wherein the input is configured to receive an AC voltage from the energy supply, wherein the output is configured to be connected to the consumer, wherein the line choke includes one coil for each pole of the input, and wherein the coils of the line choke are each connected between one pole of the input and one pole of the output and energy is transferred from the input to the output and/or vice versa. A resonant current suppression (RCS) group is connected in parallel to a coil of the line choke to transmit resonant currents arising at the line choke such that voltage increases generated by the resonant currents are reduced or suppressed by the at least one RCS circuit.

Abstract: In an optical module, optical signal output having satisfactory waveform and intensity can be obtained. A differential transmission line includes a first differential transmission line, which has a first characteristic impedance and is connected to a drive IC, a second differential transmission line, which has a second characteristic impedance and is connected to a light output element, the second characteristic impedance being smaller than the first characteristic impedance, and connecting portions configured to connect the first differential transmission line and the second differential transmission line in series with each other. A resistive element is arranged between the connecting portions. The resistive element has a resistance value that is set to a value with which an absolute value of a reflection coefficient for a signal traveling from the second differential transmission line side to the first differential transmission line side is 0.10 or less.

Abstract: A voltage converter comprises a second controller as a power switch of the secondary side of the transformer for comparing a detection voltage representing an output voltage and/or load current with a first reference voltage and generating a control signal, and a coupling element for transmitting the control signal generated by the second controller to the first controller on the primary side of the transformer enabling the first controller to generate a first pulse signal driving the power switch to control the on/off state of the primary side winding.

Abstract: In one embodiment, an apparatus includes an interface for transmitting pulse power and data to a powered device over a wire pair and a controller for receiving input identifying power transitions in the pulse power and suspending data transmission during the power transitions. A method is also disclosed herein.

Abstract: This integrated circuit comprises an inductor formed by at least a first coil and a second coil which are magnetically coupled together. Each of the first and second coils comprises a metal line which extends continuously, in a plane, between a first end and second end, said metal line following a winding path around an axis of the coil parallel to the plane, this metal line comprising for this purpose a succession of sections which each intersect the axis of the coil, and the sections of this succession are electrically connected in series with each other.

Abstract: A common-mode choke coil includes a first filter unit and a second filter unit, each of which serves as a common-mode filter unit and is formed by arranging a primary coil and a secondary coil in a stacking direction. Of the first filter unit and the second filter unit, the first filter unit has a resonant frequency different from that of the second filter unit, and the line length is different between the primary coil and the secondary coil.

Abstract: The following relates generally to design and redesign of digital circuits. In one disclosed embodiment, a circuit is annotated by identifying at least one possible error location according to an error library; the at least one possible error location is localized; and the circuit is redesigned based on the localized at least one possible error location.

Abstract: A filter structure includes a ground plane in a first metal layer of an IC package, a plate in a second metal layer of the IC package, a dielectric layer between the ground plane and the plate, the ground plane, the dielectric layer, and the plate thereby being configured as a capacitive device. An inductive device in a third metal layer of the IC package is electrically connected to the plate, and a perimeter of the plate is aligned with a perimeter of the inductive device.

Abstract: A vehicle electric drive includes a battery, an electric machine, and a variable voltage converter. The variable voltage converter includes switches, a transformer having a pair of windings sharing a common terminal with a series connected input capacitor, and an inductor electrically between the switches and transformer. The transformer and input capacitor are in parallel with the battery. The variable voltage converter is configured to boost voltage of the battery via operation of the switches.

Abstract: Balun circuit arrangement with a balanced port side having two balanced terminals and an unbalanced port side having an unbalanced terminal. A first series connection of a first inductive impedance element (L1) and a first capacitive impedance element (C1) is present between a negative terminal of the two balanced terminals and the unbalanced terminal. A second series connection of a second inductive impedance element (L2) and a third inductive impedance element (L3) is present between a positive terminal of the two balanced terminals and the unbalanced terminal, and a second capacitive element (C2) is connected between a node connecting the second and third inductive element and a ground connection. The balun circuit arrangement may be used in a combination with an oscillator circuit and a single ended antenna.

Abstract: A PoDL system conducts differential data and DC power over the same wire pair, and various DC coupling techniques are described that improve DC voltage coupling while attenuating AC common mode noise. Pairs of differential mode chokes (DMCs) are used to share current supplied by a power supply. In one embodiment, one DMC is coupled to the line side of a common mode choke (CMC), and one DMC is coupled to the PHY side of the CMC. The line-side DMC has windings that are loosely magnetically coupled so that DMC does not present a very low impedance to AC common mode noise on the wires. Therefore, the performance of the wires' RC termination circuitry is not adversely affected by the line-side DMC when minimizing reflections of common mode signals. The DMCs may use the same magnetic core, and the CMC may be series CMCs that used the same magnetic core.

Abstract: An inductor having a first coil of metal trace configured in an open loop topology and placed in a first metal layer; a second coil of metal trace configured in an open loop topology and placed in the first metal layer; and a third coil of metal trace configured in a closed loop topology and placed in a second metal layer, wherein: the first coil of metal trace is laid out to be substantially symmetrical with respect to a first axis, the second coil of metal trace is laid out to be approximately a mirror image of the first coil of metal trace with respect to a second axis, and the third coil of metal trace is laid out to enclose a majority portion of both the first coil of metal trace and the second coil of metal trace from a top view perspective.

Abstract: The purpose of the present invention is to provide a component in which inductors and capacitors necessary for a low-pass filter and the like can be mounted at high density, and to in turn reduce the size of an electronic control unit in which the component is installed. The electronic control unit is characterized in that: the electronic control unit is provided with a laminated capacitor having built-in circuit patterns and dielectric bodies; the circuit patterns comprise a laminated plurality of coil effect generation patterns and inter-layer connection patterns for series connection of the plurality of coil effect generation patterns; and at least some of the plurality of coil effect generation patterns are used as electrodes for the laminated capacitor.

Abstract: An improved filter for communications over a power bus may provide it to or minimize the effect of voltage spikes on a power line and/or may filter a power line signal with high pass and low pass filters to allow communicative signal reception on noisy power lines, and/or may filter a communicative signal transmitted from a radio modem with low pass filters to prevent high frequency harmonics and spurious signals from being conducted into and thereafter radiated from the power line.

Abstract: A multilayer common mode filter includes a first coil, a second coil and a third coil. The first coil includes a first coil conductor and a second coil conductor having spiral shapes and is configured by electrically connecting the first coil conductor and the second coil conductor. The second coil includes a third coil conductor and a fourth coil conductor having spiral shapes and is configured by electrically connecting the third coil conductor and the fourth coil conductor. The third coil includes a fifth coil conductor and a sixth coil conductor having spiral shapes and is configured by electrically connecting the fifth coil conductor and the sixth coil conductor. The first to sixth coil conductors are disposed in order of the first coil conductor, the third coil conductor, the fifth coil conductor, the second coil conductor, the fourth coil conductor, and the sixth coil conductor in a first direction.

Abstract: An LC composite electronic component includes a ceramic substrate that includes a magnetic layer, a thin-film insulator layer that is formed using a thin film process on a surface of the ceramic substrate, a coil-shaped inductor element that is formed in the ceramic substrate, a capacitor element that is formed in the thin-film insulator layer, and external terminals that are formed on a surface of the thin-film insulator layer. The capacitor element is located in the thin-film insulator layer and includes a first capacitor electrode, a second capacitor electrode and a thin-film dielectric body at least part of which is arranged between the first and second capacitor electrodes. The external terminals are each respectively connected to at least one out of the inductor element and the capacitor element.

Abstract: A converter filter includes an inductor having a main winding and a winding element, and first and second absorption circuits coupled to the inductor. The first and second absorption circuits are decoupled from one another by an inductance of the winding element of the inductor. An auxiliary winding is coupled to the inductor and forms a 1:1 transformer with the winding element. The auxiliary winding is fed via the inductance of the winding element. The auxiliary winding and the second absorption circuit are each connected to an output of the winding element and the first absorption circuit is connected to the auxiliary winding.

Abstract: The present invention relates to a single phase, non-insulated, miniaturized DC/AC power inverter (1) having an output power density higher than 3000 W/dm3, wherein said first (S1_H), second (S1_L), third (S2_H) and fourth (S2_L) switches are made of wide-band semiconductors and preferably of gallium nitride or GaN semiconductors; and wherein said DC/AC power inverter (1) further comprises: a ripple-compensating active filter comprising a third half-bridge (203) having a fifth switch (S3_H) in series with a sixth switch (S3_L), said fifth switch (S3_H) being connected at one end to the positive terminal (L+) of the DC input, said sixth switch (S3_L) being connected at one end to the negative terminal (L?) of the DC input,the other end of the fifth switch (S3_H) being connected to the other end of the sixth switch (S3_L), defining a third common end, said third common end being connected to a first end of a LC filter, made of at least one inductor (L6) and one storage capacitor (C5), a second end of the LC fil

Abstract: A multilayer electronic component includes a ceramic body having stacked dielectric layers to form a first capacitor part and a second capacitor part, wherein the first capacitor has a constant capacitance, and the second capacitor part has a variable capacitance; a voltage control terminal formed on a lateral surface of the ceramic body; an input terminal disposed on another lateral surface of the ceramic body corresponding to the first capacitor part; and an output terminal disposed on the other lateral surface of the ceramic body corresponding to the second capacitor part separate from the input terminal.

Abstract: An inductive device including a first and second concentric winding wound around a center axis of the inductive device, where the second winding is placed outside of the first winding and provided in two separate parts a first upper part and a second lower part, wherein there is an opening between the first and second parts of the second winding and the first winding has a first winding connection that passes through said opening, the inductive device further including a concentric electric shielding element around the center axis and stretching all the way between the upper and the lower part of the second winding, the shielding element including a metal shield layer.

Abstract: The present invention discloses a common mode noise restrainer applicable to Ethernet, comprising: a circuit side configured to connect with an integrated circuit; a cable side configured to connect with a cable; a plurality of transformers set between the circuit side and the cable side; and a plurality of common mode chokes composed of a first part of the common mode chokes and a second part of the common mode chokes in which the first part of the common mode chokes is set between the circuit side and the plurality of transformers and the second part of the common mode chokes is set between the cable side and the plurality of transformers while the one or more transformer(s) connected with the first part of the common mode chokes are not identical to the one or more transformer(s) connected with the second part of the common mode chokes.

Abstract: A communication matching network for multi-harmonic suppression includes a communication circuit configured to provide a signal. The communication matching network further includes a matching circuit configured to receive the signal from the communication circuit and suppress one or more harmonics of the received signal to generate a filtered signal, wherein the matching circuit includes a transformer comprising a first winding and a second winding, wherein the first winding includes a first inductance and the second winding includes a second inductance and wherein the matching network includes a harmonic trap including a third inductance such that the third inductance is located inside or within a physical layout of the first winding and/or the second winding. The communication matching network further includes a receiver circuit configured to receive the filtered signal from the matching circuit for further processing.

Abstract: An AC Line Filter/Rectifier Module (ACLF/RM) has a metal housing and an outward appearance of a conventional AC line filter, but the ACLF/RM includes circuitry that performs both EMI filtering and line filtering as well as very efficient AC-to-DC rectification. Rectification circuitry within the ACLF/RM rectifies an AC voltage signal received onto AC input module terminals and outputs a rectified version of the AC voltage signal onto DC output module terminals. The rectification circuitry includes at least one low forward voltage rectifier, where the low forward voltage rectifier includes a bipolar transistor and a diode. Inductive components perform both EMI filtering and line filtering as well as current splitting required to drive the bipolar transistors of the low forward voltage rectifiers. Due to the use of the low forward voltage rectifiers, the AC-to-DC conversion is more efficient than would be case were a conventional diode bridge rectifier employed.

Abstract: Described is a spark plug connector having an interference-suppression resistor which has a wire winding on a coil body. According to this disclosure, it is provided that the coil body carries an electrical resistor that contacts the wire winding and is connected in parallel thereto. In addition, an interference-suppression resistor for an ignition system of an internal combustion engine is described.

Abstract: An electronic component includes first through n-th inductors that turn around as viewed from a first direction perpendicular or substantially perpendicular to a stacking direction of a multilayer body of the electronic component. An (n+1)-th inductor includes a linear (n+1)-th inductor conductive layer which is provided in a configuration in which it turns around, as viewed from the stacking direction, and which is located within a region surrounded by the first inductor, as viewed from the first direction. An (n+1)-th capacitor is electrically connected to a first outer electrode, and includes an (n+1)-th capacitor conductive layer which opposes a first inductor conductive layer defining the first inductor with an insulating layer of a plurality of insulating layers of the multilayer body interposed therebetween.

Abstract: Phaseback DC choke includes a common core, a first coil formed about the common core, and a second coil formed about the common core in parallel opposing configuration relative the first coil. A DC circuit including a Phaseback DC choke is also provided.

Abstract: RF communications circuitry, which includes a first RF filter structure, is disclosed. The first RF filter structure includes a first tunable RF filter path and a second tunable RF filter path. The first tunable RF filter path includes a pair of weakly coupled resonators. Additionally, a first filter parameter of the first tunable RF filter path is tuned based on a first filter control signal. A first filter parameter of the second tunable RF filter path is tuned based on a second filter control signal.

Abstract: A transformer filter arrangement including a transformer having a first winding and a second winding is provided. Both of the first and the second windings are located between an outer border and an inner border, which is inside the outer border. The transformer filter arrangement further includes at least one reactive sub circuit, each including at least one inductor. The first winding of the transformer is divided into a plurality of winding segments. At least a first one of the at least one reactive sub circuit being connected in series with the winding segments of the first winding between two such winding segments, and having at least one of the at least one inductor located inside said inner border.

Abstract: The present disclosure relates to a circuit for suppressing unwanted magnetic interference. The circuit can have a transformer having a first coil, a first pair of input terminals, and a first pair of output terminals. The transformer can produce a first magnetic field. The circuit can also have a harmonic trap. The harmonic trap can have a second coil and a second pair of input terminals operably coupled to the first pair of input terminals. The harmonic trap can produce a second magnetic field opposing the first magnetic field. The harmonic trap can suppress electrical signals of at least one of the first input terminals and the first output terminals of the transformer at a resonant frequency of the harmonic trap. The harmonic trap can also suppress the first magnetic field in a far field.

Abstract: A motor driving circuit for driving a direct-current (DC) motor, includes a driving circuit for converting an input voltage into a first and a second output voltages, a Hall sensor for generating a first and a second time sequential control signals according to a working condition of the DC motor, a current sensing unit for comparing the motor current to a reference current to generate a comparison result, and a control unit coupled to the driving circuit, the current sensing unit and the Hall sensor for controlling a working status of the driving circuit according to the first and the second time sequential control signals and the comparison result.

Abstract: A filter includes a multilayer body including a plurality of insulator layers stacked on top of one another. Outer electrodes are provided on surfaces of the multilayer body. A first resonator is connected to a first one of the outer electrodes and includes a first coil. A second resonator is connected to a second one of the outer electrodes and includes a second coil. A third resonator includes a third coil that is magnetically coupled with the first and second coils. The first and second coils are respectively defined by coil conductor layers provided on an insulator layer. The third coil is defined by via hole conductors that penetrate through the insulator layer in a z-axis direction.

Abstract: Disclosed is a signal splitter that includes a coupled transmission line element coupled between two output ports of the signal splitter. The coupled transmission line element is used to lower the isolation between the two output ports for a particular frequency band. The coupled transmission line element includes a first and a second elongate electrical conductor. The first and the second elongate electrical conductor first ends are coupled to the signal transmission path that connects the two output ports. The first and the second elongate electrical conductor second ends are un-terminated. The first elongate electrical conductor and the second elongate electrical conductor are not shorted together, and the first elongate electrical conductor and the second elongate electrical conductor are electrostatically coupled, such as by twisting them together into a helix.

Abstract: An AC line filter module includes AC-to-DC rectification circuitry. The rectification circuitry includes four low forward voltage rectifiers coupled together as two high-side rectifiers and two low-side rectifiers, where each low forward voltage rectifier includes an NPN bipolar transistor and a parallel-connected diode. A current splitting pair of inductors splits a return current so that a portion of the current is supplied to the collector of an NPN bipolar transistor that is on, and so that the remainder of the current is supplied to the base of the transistor that is on. Both low-side rectifiers are driven by these current splitting inductors. A pair of base current return diodes provides base current return paths. Due to the use of NPN bipolar transistors and no PNP bipolar transistors, manufacturing cost is reduced and efficiency is improved as compared to an implementation that uses low forward voltage rectifiers having PNP transistors.

Abstract: An antenna device which includes a coil conductor and a booster conductor. The coil conductor is defined by wound loop-shaped conductors and includes a first opening at a winding center and two ends connected to a feeding circuit. The booster conductor includes a coupling conductor portion and a frame-shaped radiation conductor portion. The coupling conductor portion includes a second opening overlapped at least partially by the first opening, is split in a portion thereof by a slit, and is electromagnetically coupled to the coil conductor. The frame-shaped radiation conductor portion includes a third opening and is connected to the coupling conductor portion.

Abstract: Provided are a power line communication system, a connector device, and a power line communication device that allow downsizing of a device for power line communication in a vehicle that performs power line communication with a feeding device via a charging cable. An electromagnetic induction type signal converter and a filter necessary for power line communication are provided in a connector device 3, and a power line communication section which performs power line communication with the electromagnetic induction type signal converter is provided in an ECU. A capacitor 16, a signal wire 17, and a capacitor 16 are connected in series between AC lines 11 and 12 extending from a tubular part 32 of the connector device 3.

Abstract: A transmission circuit including four transmission component sets for Ethernet is provided. Each transmission component set is coupled between an Ethernet connector and an Ethernet chip and has a protection component set. For each transmission component set, a first capacitor is coupled between first and second transmission lines (TLs), and coupled to the Ethernet connector via the first TL and to the Ethernet chip via the second TL; a second capacitor is coupled between third and fourth TLs, and coupled to the Ethernet connector via the third TL and to the Ethernet chip via the fourth TL; first and second inductors are cascaded and coupled between the first and third TLs; a third inductor is coupled between the second and fourth TLs; and a contact between the first and second inductors is coupled to a ground via a fifth TL.

Abstract: A power conversion apparatus is disclosed in the present application. The power conversion apparatus comprises: a power converter comprising an energy-storage magnetic component, and a filter comprising an inductor component and a two-port network connected the energy-storage magnetic component and the inductor component, wherein a series resonance is formed by the two-port network and a mutual inductance which is formed by a coupling between the energy-storage magnetic component and the inductor component.

Abstract: The present invention discloses an EMI suppression device, comprising: a first transformer including a first circuit-end central tap to receive a first circuit signal from two first circuit-end signal taps, and a first cable-end central tap to receive a first cable signal from two first cable-end signal taps; a second transformer including a second circuit-end central tap to receive a second circuit signal from two second circuit-end signal taps, and a second cable-end central tap to receive a second cable signal from two second cable-end signal taps; a first circuit-end inductor coupled between the first circuit-end central tap and a system ground to reduce the common mode noise of the first circuit signal; and a second circuit-end inductor coupled between the second circuit-end central tap and the system ground to reduce the common mode noise of the second circuit signal. Said first and second circuit-end inductors operate separately.

Abstract: A common mode filter is provided with first and second spiral patterns provided on an insulating layer and connected to each other in series, and third and fourth spiral patterns provided on an insulating layer and connected to each other in series. The first and third spiral patterns overlap each other so as to be magnetically coupled with each other. The second and fourth spiral patterns overlap each other so as to be magnetically coupled with each other. Relationships between winding directions of the first and second spiral patterns and between winding directions of the third and fourth spiral patterns are set to cancel out magnetic fluxes of the couples of the spiral patterns each other, respectively. Each number of turns in the first and third spiral patterns is larger than each number of turns in the second and fourth spiral patterns respectively.

Abstract: A differential transmission circuit includes differential signal transmission and reception units connected by a differential signal wiring having an inductor unit composed of magnetically coupled first and second inductors provided on first and second signal lines, an input-side capacitor unit including a first input-side capacitor having one terminal connected to a first inductor signal input terminal and the other terminal grounded and a second input-side capacitor having one terminal connected to a second inductor signal input terminal and the other terminal grounded, and an output-side capacitor unit including a first output-side capacitor having one terminal connected to a first inductor signal output terminal and the other terminal grounded and a second output-side capacitor having one terminal connected to a second inductor signal output terminal and the other terminal grounded.

Abstract: A common mode filter in which at least one surface of all of external electrodes and ground electrodes are exposed to a first surface, at least one side of each of two of the external electrodes and at least one side of one of the ground electrodes contact a first side of the first surface, and at least one side of each of the external electrodes and the ground electrodes of which sides do not contact the first side contact a second side of the first surface, thereby making it possible to improve sticking strength and decrease a short-circuit phenomenon occurrence rate.

Abstract: A stack type common mode filter (CMF) for high frequency may improve high frequency characteristics, like removing an impedance difference between terminals by not overlapping terminal portions of multiple stack structures with upper and lower magnetic substances, and removing noise in a common mode and removing a signal distortion in a differential mode by removing an unnecessary parasitic impedance from terminal portions, and thus the stack type CMF for high frequency may be applicable at a high frequency compared to a conventional CMF.

Abstract: A connection device for connecting an electrical member to a communications line comprising at least two conductors for carrying differential signals. The connection device includes at least one data exchange interface component connected to the line to send and/or receive data, and a connection for connecting the electrical member to the line.

Abstract: A noise reduction unit includes a plurality of cores each having formed therein a through hole, a plurality of wires connected to a noise source and each wound around the corresponding core through the through hole, and a core supporting member that supports the plurality of cores. The core supporting member supports the plurality of cores in such a manner that the plurality of cores is disposed parallel to each other along a through direction of the through holes and spaced apart from each other with a predetermined gap in the through direction.

Abstract: There are provided a transformer including inductors, and variable capacitors. Capacitance values of the variable capacitors are controlled by a control signal. One end of the first inductor is connected to a reference potential, the first variable capacitor is connected in series between the other end of the first inductor and a first terminal, the second variable capacitor is connected in series between one end of the second inductor and a second terminal, the third variable capacitor is connected in series between the other end of the second inductor and a third terminal. The capacitance values of the variable capacitors are changed by the control signal to obtain a desired pass phase, a loss is small, and both functions of a single-phase-differential conversion and a phase shifter are realized.

Abstract: An alternating current (AC) power device includes an AC circuit having input nodes, output nodes and a ground node. The AC circuit is configured to receive an input electrical signal at the input nodes and generate an output electrical signal at the output nodes. The AC power device also includes an inductor coupled to the ground node of the AC circuit. The ground node is configured to be coupled to a ground plane at a ground potential. The AC circuit is configured to be coupled to a load at the output nodes. The inductor is configured to be connected in series between the ground node of the AC circuit and the load to attenuate radio frequency components present at the ground node.