EMV-Filter zur Unterdrückung von Störsignalen

Der Erfindung, welche einen EMV-Filter (1) zur Unterdrückung von Störsignalen betrifft, liegt die Aufgabe zugrunde, eine Lösung anzugeben, womit ein Überarbeitungsaufwand einer Inverterplatine reduziert wird und außerdem eine Bauraumbeschränkung sowie eine Reduzierung der Entwicklungs- und Herstellungskosten erreicht wird. Diese Aufgabe wird dadurch gelöst, dass in einem EMV-Filter-Modul (10) mindestens ein Kern (11) einer Drossel (4, 5) mit einer Windung (16) auf einer ersten Trägerplatine (14) angeordnet ist, dass mindestens einer der Kondensatoren (6, 7, 8, 9) auf der ersten Trägerplatine (14) angeordnet ist, dass die erste Trägerplatine (14) mindestens zwei Kontaktmittel (17) aufweist und das die erste Trägerplatine (14) des EMV-Filter-Moduls (10) mit ihren Kontaktmitteln (17) an einer Hauptplatine (12) eines Umrichters (2) und mit dieser elektrisch verbunden angeordnet ist.

ELECTROMAGNETIC INTERFERENCE FILTER, AND POWER SUPPLY APPARATUS AND DISPLAY APPARATUS INCLUDING THE SAME

There are provided an electromagnetic interference filter for removing common mode electromagnetic interference, in which electromagnetic interference of a low frequency band and a high frequency band is removed in a single filter because of a wide block frequency band, a power supply apparatus including the electromagnetic interference filter, and a display apparatus including the electromagnetic interference filter. The electromagnetic interference filter includes a core part including at least two legs electromagnetically coupled and forming a closed magnetic circuit; a coil part including first and second rectangular copper wires respectively wound in a single layer around the at least two legs and removing common mode electromagnetic interference included in power transferred from a power line; and a support part having a mounting area in which the core part having the coil part wound therearound is mounted.

NOISE FILTER, MULTISTAGE-CONNECTION LC FILTER, AND MEDICAL INSTRUMENT

A noise filter includes a plurality of inductor elements connected with one another in series. The inductor element includes a ring-shaped magnetic core, a winding wound around the magnetic core, and a ground terminal disposed between the magnetic core and the winding, the ground terminal being connected to a ground. The ground terminal includes a conductive part that surrounds at least a part of an outer periphery of the magnetic core.

Device attenuator-phase-converter with electric drive

System for wireless energy distribution in a vehicle

Described herein are improved capabilities for a system and method for wireless energy distribution to a mechanically removable vehicle seat, comprising a source resonator coupled to an energy source of a vehicle, the source resonator positioned proximate to the mechanically removable vehicle seat, the source resonator generating an oscillating magnetic field with a resonant frequency and comprising a high-conductivity material adapted and located between the source resonator and a vehicle surface to direct the oscillating magnetic field away from the vehicle surface, and a receiving resonator integrated into the mechanically removable vehicle seat, the receiving resonator having a resonant frequency similar to that of the source resonator, and receiving wireless energy from the source resonator, and providing power to electrical components integrated with the mechanically removable vehicle seat.

フィルタデバイス

Noise filter

本发明的噪声滤波器被插入在要对噪声进行衰减的主电路的电源侧和负载侧之间，利用由线圈和电容器构成的滤波器电路使所述主电路的噪声得到衰减，使所述基板接地图案被分离为多个基板接地图案，并且分别与存在于所述基板之外的共用的接地构件连接，进一步地，使所述基板接地图案为面块图案，使相邻的所述基板接地图案之间的距离为规定间隔以下。

COMMON MODE FILTER

Disclosed herein is a common mode filter that includes first and second terminal electrodes provided on the first flange part, third and fourth terminal electrodes provided on the second flange part, a first wire wound around the winding core part and having one end connected to the first terminal electrode and other end connected to the third terminal electrode, and a second wire wound around the winding core part and having one end connected to the second terminal electrode and other end connected to the fourth terminal electrode. The winding core part includes a first winding region, a second winding region, and a third winding region positioned between the first and second winding regions in the axial direction. The first and second wires are bifilar-wound in the first and second winding regions and layer-wound in the third winding region. 1. A common mode filter comprising:a core including a winding core part extending in an axial direction, a first flange part provided at one end of the winding core part in the axial direction, and a second flange part provided at other end of the winding core part in the axial direction;first and second terminal electrodes provided on the first flange part;third and fourth terminal electrodes provided on the second flange part;a first wire wound around the winding core part and having one end connected to the first terminal electrode and other end connected to the third terminal electrode; anda second wire wound around the winding core part and having one end connected to the second terminal electrode and other end connected to the fourth terminal electrode,wherein the winding core part includes first, second, and third sections arranged in this order from the first flange part to the second flange part,wherein the first and second wires are bifilar-wound in the first section and layer-wound in each of the second and third sections, andwherein the first and second wires cross each other between the second and third sections.2 ...

Rauschfiltervorrichtung und Herstellungsverfahren hierfür

Rauschfiltervorrichtung, umfassend: einen Erdungsverbindungsanschluss (21) für eine Erdung; eine Induktivität (31); ein Paar von Kondensatoren (41), welche ein Teil einer π-Typ-Filterschaltung (C) gemeinsam mit der Induktivität (31) bilden und elektrisch mit dem Erdungsverbindungsanschluss (21) zu verbinden sind; und ein Gehäuse (11), welches fähig ist, die Induktivität (31) und das Paar von Kondensatoren (41) aufzunehmen; wobei das Paar von Kondensatoren (41) beide auf einer Oberflächenseite einer virtuellen Ebene normal auf eine axiale Richtung (X) der Induktivität (31) angeordnet sind, eine leitende bzw. leitfähige Abschirmplatte (24B), welche mit dem Erdungsverbindungsanschluss (21) verbunden ist, zwischen den Kondensatoren (41) zwischengeschaltet ist, wobei das Paar von Kondensatoren (41) in der axialen Richtung (X) der Induktivität (31) nebeneinander angeordnet ist derart, dass nur die Abschirmplatte (24B) zwischen den Kondensatoren (41) angeordnet ist, und wobei ein Paar leitender ...

ELECTROMAGNETIC INTERFACE MODULE FOR BALANCED DATA COMMUNICATION

Apparatus for reducing a common mode (CM) electromagnetic interference (EMI) in a balanced transmission line which carries a differential signal occupying a specified frequency band is described. The apparatus includes a first Single Ended Filter (310) operatively associated with a first path (330) of the balanced transmission line, and a second Single Ended Filter (320) operatively associated with a second path (340) of the balanced transmission line, wherein a ground terminal (370) of the first Single Ended Filter and a ground terminal (360) of the second Single Ended Filter are electrically connected to a local ground (370). Related apparatus and methods are also described.

COMMON MODE FILTER

Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks. 1. A common mode filter comprising:a winding core part; andfirst and second wires wound in a same direction around the winding core part,wherein the first and second wires constitute a first winding block wound a plurality of turns on one endmost side in an axial direction of the winding core part, a second winding block wound a plurality of turns on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks, the third winding block including an odd number of blocks each wound a plurality of turns,wherein the second winding block is a winding block at an odd-numbered position counted from the first winding block, andwherein the first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.2. The common mode filter as claimed in claim 1 , wherein a number of turns in the first winding block and that in the second winding block are equal to each other.3. The common mode filter as claimed in claim 1 , wherein a total number of turns in the first and second winding blocks and a number of turns in the third winding block are equal to each other.4. The common mode filter as ...

Power EMI filter

本发明提供了一种电源EMI滤波器，包括具有容置腔的机壳、安装于所述容置腔中的电路板、四根引脚，各引脚的一端伸入容置腔中与电路板相连，各引脚的另一端经容置腔的底面伸出机壳，还包括用于抑制信号线或电源线上的高频噪声与尖峰干扰的磁珠，各磁珠中开设有通孔，各引脚上分别套装有磁珠，各磁珠设于电路板与容置腔的底面之间。本发明通过在各引脚上套装磁珠，并将各磁珠设置在电路板与容置腔底面之间，从而在电流从引脚进入电路板时，会经过磁珠进行干扰抑制，而在电流从电路板输出到引脚时，同样会经过磁珠进行干扰抑制，从而使磁珠对信号线或电源线上的高频噪声与尖峰干扰进行抑制，提高滤波效果。

DEMODULATION APPARATUS FOR DIGITAL AUDIO AMPLIFIER

Disclosed is a demodulation apparatus for a digital audio amplifier capable of solving a space, cost and heat generation of the digital audio amplifier. The demodulation apparatus includes a first inductor connected between a positive digital audio signal output terminal and one end of a load, a second inductor connected between a negative digital audio signal output terminal and the other end of the load, and magnetically coupled to the first inductor, a first capacitor connected between the one end of the load and ground and coupled to the first inductor for serving as a low-pass filter, and a second capacitor connected between the other end of the load and ground and connected to the second inductor for serving as a low-pass filter.

Magnetic structures for filtering amplifier outputs

The technology described in this document can be embodied in an apparatus that includes at least four magnetic cores, wherein each core is for supporting an inductor of a filter circuit. Each of the cores include a first section, and a second section separated from the first section by an adhesive layer. The apparatus also includes an air-core structure to store magnetic energy, the air-core structure including a set of focusing projections that define a hollow cavity. The individual focusing projections of the set are disposed on different sides of the hollow cavity to focus magnetic field from the at least four magnetic cores through the hollow cavity.

Noise filter

Provided is a noise filter that can enhance noise removal performance with a simple configuration. A noise filter (10) includes a connector (20) that houses a terminal fitting (22) connected to an input/output wire (WH) in a state in which the input/output wire (WH) is lead out from the connector (20). The noise filter (10) includes a coil (40) that is connected to the input/output wire (WH), a capacitor (30) that is electrically connected to the coil (40), and a magnetic member (50). The noise filter (10) includes a case (60) that houses the capacitor (30), the coil (40), and the magnetic member (50), and a holding member (70) that holds the magnetic member (50) in a state in which the magnetic member (50) is positioned with respect to the coil (40).

Electrically variable attenuator

... 934,862. Phase changing and attenuator networks. BENDIX CORPORATION. March 14, 1961 [March 16, 1960; March 17, 1960], No. 9308/61. Class 40 (8). [Also in Group XXXV] A device for electrically controlling the attenuation and/or phase shift of a highfrequency signal comprises a helically wound coaxial cable 42 (Fig. 1), a cylindrical ferrite or garnet core 38, and a control winding 28 variably energized from a voltage source 30 to control the field in the core and hence the attenuation or phase shift undergone by a signal passing through the coaxial cable. A cylindrical aluminium outer casing 20 surrounds a soft iron drum-shaped support 22 with bosses for mounting the core 38 and an insulating bobbin 26 carrying the control winding 28. The coaxial cable 42 has its outer conductor and di-electric partly stripped to expose the axial conductor at the inner side of the helix. When the device is used primarily as a phase shifter the surface of the core adjacent the helix is coated with dielectric ...

Gleichtaktfilter

Hier wird ein Gleichtaktfilter offenbart, das einen Wicklungskernteil sowie einen ersten und einen zweiten Draht umfasst, die in derselben Richtung um den Wicklungskernteil gewickelt sind. Der erste und der zweite Draht bilden einen ersten Wicklungsblock auf einer am Ende in einer axialen Richtung gelegenen Seite des Wicklungskernteils, einen zweiten Wicklungsblock auf einer anderen am Ende in der axialen Richtung gelegenen Seite des Wicklungskernteils und einen dritten Wicklungsblock, der sich zwischen dem ersten und dem zweiten Wicklungsblock befindet.Der zweite Wicklungsblock ist ein Wicklungsblock in einer ungeradzahligen Position, vom ersten Wicklungsblock aus gezählt. Der erste und der zweite Draht kreuzen sich in einem Bereich zwischen dem ersten und dem dritten Wicklungsblock und in einem Bereich zwischen dem zweiten und dem dritten Wicklungsblock.

FILTERING DEVICE WITH MAGNETIC CORE TOROIDAL INDUCTIVE

Common mode filter capable of balancing induced inductance and distributed capacitance

一種共模濾波器，包含一內線圈以及一外線圈。一內導線纏繞該捲芯而構成該內線圈，且該內線圈包含複數個內圈。一外導線纏繞該內線圈而構成該外線圈，且該外線圈包含複數個外圈及至少一跨圈。該複數個外圈加上該至少一跨圈的一總和等於該複數個內圈的一數量；該至少一跨圈包含該外線圈的一第N圈，該第N圈繞跨該外線圈的一第（N-1）圈，且該第N圈相鄰該外線圈的該複數個外圈中的二圈；其中N是一整數，N不小於3且不大於該複數個內圈的該數量。

Cylindrical bandstop filters for medical lead systems

A one-piece cylindrical bandstop filter for medical lead systems incorporates parallel capacitive and inductive elements in a compact cylindrical configuration. The compact cylindrical configuration of the bandstop filter does not add significantly to the size or weight of the medical lead system. Preferably, the bandstop filters are of biocompatible materials or hermetically sealed in biocompatible containers. The parallel capacitive and inductive elements are placed in series with the medical lead system, and are selected so as to resonate at one or more selected frequencies, typically MRI pulsed frequencies.

Systems and methods for enhanced high frequency power bias tee designs

Systems and methods for enhanced high frequency power bias tee designs are provided. In one embodiment, a bias tee network comprises: a first port configured to couple across a data line comprising a first electrically conducting line and a second electrically conducting line;a second port configured to couple to a power port of an electrical device; and a distributed impedance interface coupled between the power supply unit and the differential data line, wherein the distributed impedance interface includes a ferrite impedance gradation network having a plurality of ferrite impedance elements series coupled in an order of progressing impedance, wherein a low impedance end of the first ferrite impedance gradation network is coupled to the first port.

Electric filter

METHOD AND APPARATUS TO PROVIDE COMPENSATION FOR PARASITIC INDUCTANCE OF MULTIPLE CAPACITORS

A coupled winding cancels parasitic inductance of first and second capacitors. In an EMI filter having common mode capacitors and a differential capacitors, first and second windings cancel parasitic inductance of the common mode and differential capacitors.

Vorrichtung zum Steuern der Daempfung und/oder der Phasenverschiebung einer hochfrequenten elektromagnetischen Welle

Systems and methods for enhanced high frequency power bias tee designs

Systems and methods for enhanced high frequency power bias tee designs are provided. In one embodiment, a bias tee network comprises: a first port configured to couple across a data line comprising a first electrically conducting line and a second electrically conducting line;a second port configured to couple to a power port of an electrical device; and a distributed impedance interface coupled between the power supply unit and the differential data line, wherein the distributed impedance interface includes a ferrite impedance gradation network having a plurality of ferrite impedance elements series coupled in an order of progressing impedance, wherein a low impedance end of the first ferrite impedance gradation network is coupled to the first port.

LINE FILTER AND ELECTRIC POWER SUPPLY DEVICE COMPRISING SAME

본 발명은 라인 필터 및 라인 필터를 포함하는 전력 공급 장치에 대한 것으로, 제1 보빈에 권선되어 있는 제1 코일을 가지는 제1 인덕터, 그리고 제2 보빈에 권선되어 있는 제2 코일을 가지며, 상기 제1 인덕터에 유도되어 전류를 흘리는 제2 인덕터를 포함하며, 상기 제1 보빈과 제2 보빈은 물리적으로 분리되어 있는 라인 필터 및 상기 라인 필터를 포함하는 전력 공급 장치를 포함한다.

DEMODULATION APPARATUS FOR DIGITAL AUDIO AMPLIFIER

STÖRUNGSFILTER VOM LEITERPLATTENTYP UND ELEKTRONISCHE EINRICHTUNG

Es werden ein Störungsfilter vom Leiterplattentyp, das ein höheres Störungsbeseitigungsvermögen als ein herkömmliches Störungsfilter besitzt, und eine elektronische Einrichtung angegeben, die das Störungsfilter vom Leiterplattentyp aufweist. Das Störungsfilter vom Leiterplattentyp weist Folgendes auf: eine gedruckte Leiterplatte (1), auf welcher ein Verdrahtungsmuster (7) ausgebildet ist; eine Drosselspule (4), die einen Kern (4a) aufweist, der eine Toroidform besitzt; einen Gehäusemassenbereich (6), der an der gedruckten Leiterplatte (1) an einer Position befestigt ist, die einen hohlen Bereich der Drosselspule (4) überlappt, wenn die Toroidform der Drosselspule (4) in der Draufsicht betrachtet wird, wobei der Gehäusemassenbereich so ausgebildet ist, dass er an einer Gehäusemasse geerdet werden kann; und einen Kondensator (2, 3, 8, 9, dessen erster Anschluss mit dem Gehäusemassenbereich (6) durch das Verdrahtungsmuster (7) verbunden ist.

Common mode noise filter

A common mode noise filter includes a laminated body having insulator layers therein and first and second spiral conductors provided on layer planes different from each other. The first spiral conductor includes a first spiral conductor line, a first pad provided at an outer end of the first spiral conductor line, and a second pad provided at an inner end of the first spiral conductor line. The second spiral conductor includes a second spiral conductor line, a third pad provided at an outer end of the second spiral conductor line, and a fourth pad provided at an inner end of the second spiral conductor line. The first spiral conductor line faces the second spiral conductor line. Each of the second pad and the sixth pad overlaps none of the fourth pad and the eighth pad viewing from above.

Power supply filter

Filter component

A filter component includes a housing body. A first and at least one second busbar each have a first end section, and a second end section, between which in each case a center section is arranged. The end sections of the busbars each have connections for connecting electrical conductors to the filter component. The first and second end section and the center section of the first busbar are arranged in a first plane and the first and second end section and the center section of the at least one second busbar are arranged in a second plane, which is different from the first plane.

NOISE FILTER

Provided is a noise filter that can enhance noise removal performance with a simple configuration. A noise filter (10) includes a connector (20) that houses a terminal fitting (22) connected to an input/output wire (WH) in a state in which the input/output wire (WH) is lead out from the connector (20). The noise filter (10) includes a coil (40) that is connected to the input/output wire (WH), a capacitor (30) that is electrically connected to the coil (40), and a magnetic member (50). The noise filter (10) includes a case (60) that houses the capacitor (30), the coil (40), and the magnetic member (50), and a holding member (70) that holds the magnetic member (50) in a state in which the magnetic member (50) is positioned with respect to the coil (40).

Electrical noise absorber for electric cable, has sleeve that rests against surface of end region of intermediate connector so that gap formed between sleeve and annular element is sealed by lock washer/sealing ring

An electric cable screw fastener has a ferrite made annular/sleeve-shaped element (1) having an intermediate connector (2) with module aperture and channel (4) for annular element at one end region (3), and an inner stop collar (6) on which face surface of annular element is arranged, at another end region (5). A detachable sealing element (8) pushes annular element or supplementary stop shoulder into end region (3). A sleeve (10) rests against a surface of end region (3) so that gap formed between end of sleeve and surface of annular element is sealed by lock washer or sealing ring (12).

Filterbauelement

Ein Filterbauelement umfasst einen Gehäusekörper (100), eine erste und mindestens eine zweite Stromschiene (210, 220), die jeweils einen ersten Endabschnitt (211, 221) und einen zweiten Endabschnitt (212, 222), zwischen denen jeweils ein mittlerer Abschnitt (213, 223) angeordnet ist, aufweisen. Die Endabschnitte der mindestens zwei Stromschienen (210, 220) weisen jeweils Anschlüsse (214, 215, 224, 225) zum Anschließen von elektrischen Leitern an das Filterbauelement auf. Der erste und zweite Endabschnitt (211, 212) und der mittlere Abschnitt der ersten Stromschiene sind in einer ersten Ebene (E1) und der erste und zweite Endabschnitt (221, 222) und der mittlere Abschnitt (223) der mindestens einen zweiten Stromschiene (220) sind in einer zweiten von der ersten Ebene verschiedenen Ebene (E2) angeordnet. Dadurch kann das Filterbauelement aus einer Montagerichtung mit den elektrischen Leitern verbunden werden.

Line filter and power supply unit

"Vorrichtung zum Absorbieren bzw. Reduzieren von Störsignalen auf einem elektrischen Leiter"

Vorrichtung (1, 14, 28, 37) zum Absorbieren bzw. Reduzieren von Signalstörungen auf einem elektrischen Leiter, insbesondere in einem Kabel, mit einer Durchführungsöffnung, die zur Durchführung des elektrischen Leiters vorgesehen ist, mit einer Dämpfungseinrichtung, die ein mehrteiliges, insbesondere aus zwei Dämpfungsteilen bestehendes ringförmiges Dämpfungselement aus einem Dämpfungsmaterial umfasst, das elektromagnetische Störsignale, insbesondere Rauschsignale dämpft, mit einem Gehäuse, in dem sich das Dämpfungselement unterbringen lässt und das zur Anbringung des Dämpfungselements am elektrischen Leiter vorgesehen ist, wobei das Gehäuse (42) mehrere, insbesondere zwei schalenförmige Gehäuseteile (2, 3, 15, 16, 30, 31) umfasst, wobei in einem zusammengesetzten Zustand der Vorrichtung das Dämpfungselement im Gehäuse (42) einen in der Durchführungsöffnung angeordneten Leiter ringförmig umgibt, dadurch gekennzeichnet, dass an einem innenseitigen Oberflächenabschnitt wenigstens eines der ...

Rauschfiltervorrichtung und Herstellungsverfahren hierfür

Es wird darauf abgezielt, eine elektrische Feldkopplung zwischen Kondensatoren zu unterdrücken und Merkmale einer Rauschfiltervorrichtung zu verbessern. Eine Rauschfiltervorrichtung beinhaltet einen Erdungsverbindungsanschluss (21) für ein Erden, eine Spule (31), welche durch ein Wickeln eines leitenden bzw. leitfähigen Drahts (33) gebildet ist, ein Paar von Kondensatoren (41), welche ein Teil einer -Typ-Filterschaltung (C) gemeinsam mit der Spule (31) darstellen oder ausbilden und elektrisch mit dem Erdungsverbindungsanschluss (21) zu verbinden sind, und ein Gehäuse (11), welches fähig ist, die Spule (31) und das Paar von Kondensatoren (41) aufzunehmen. Von dem Paar von Kondensatoren sind beide auf einer Oberflächenseite einer virtuellen Ebene angeordnet, welche die Spule in zwei Teile in einer axialen Richtung teilt, und eine leitende bzw. leitfähige Abschirmplatte (24B), welche an dem Erdungsverbindungsanschluss (21) zu erden ist, ist wenigstens teilweise zwischen den Kondensatoren ( ...

FILTER COMPONENT

A filter component comprises a housing body (100), a first and at least a second busbar (210, 220) which each have a first end section (211, 221) and a second end section (212, 222) between which a central section (213, 223) is arranged in each case. The end sections of the at least two busbars (210, 220) each have connections (214, 215, 224, 225) for connecting electrical conductors to the filter component. The first and the second end section (211, 212) and the central section of the first busbar are arranged in a first plane (E1), and the first and the second end section (221, 222) and the central section (223) of the at least one second busbar (220) are arranged in a second plane (E2) which is different from the first plane. As a result, the filter component can be connected to the electrical conductors from a mounting direction.

Demodulation apparatus for digital audio amplifier

Disclosed is a demodulation apparatus for a digital audio amplifier capable of solving a space, cost and heat generation of the digital audio amplifier. The demodulation apparatus includes a first inductor connected between a positive digital audio signal output terminal and one end of a load, a second inductor connected between a negative digital audio signal output terminal and the other end of the load, and magnetically coupled to the first inductor, a first capacitor connected between the one end of the load and ground and coupled to the first inductor for serving as a low-pass filter, and a second capacitor connected between the other end of the load and ground and connected to the second inductor for serving as a low-pass filter.

Noise filter device

A noise filter device includes a ground connection terminal (21) for grounding, a coil (31) formed by winding a conductive wire (33), a pair of capacitors (41) constituting a -type filter circuit C together with the coil (31) and to be electrically connected to the ground connection terminal (21), and a housing (11) capable of housing the coil (31) and the pair of capacitors (41). The capacitors are both arranged on one surface side of a virtual plane dividing the coil into two in an axial direction, and a conductive shielding plate (24B) to be grounded to the ground connection terminal (21) is interposed between the capacitors (41).

Vorrichtung zum Filtern mindestens eines Signals

Eine Vorrichtung (20) zum Filtern mindestens eines Signals hat einen ersten Magnetkern (60) und mindestens eine erste Spule (31), welche erste Spule (31) einen ersten Spulenanschluss (43), einen zweiten Spulenanschluss (44), eine erste Teilspule (41), eine zweite Teilspule (42) und einen Verbindungsabschnitt (45) aufweist, welcher erste Spulenanschluss (43) über die erste Teilspule (41), den Verbindungsabschnitt (45) und die zweite Teilspule (42) elektrisch mit dem zweiten Spulenanschluss (44) verbunden ist, welche erste Teilspule (41) eine erste Spulenachse (47) aufweist und welche zweite Teilspule (42) eine zweite Spulenachse (48) aufweist, welche erste Spulenachse (47) und zweite Spulenachse (48) parallel und beabstandet zueinander angeordnet sind, und welcher erste Magnetkern (60) sich sowohl durch die erste Teilspule (41) als auch durch die zweite Teilspule (42) erstreckt. A device (20) for filtering at least one signal has a first magnetic core (60) and at least one first coil (31), which first coil (31) has a first coil connection (43), a second coil connection (44), a first partial coil ( 41), a second coil section (42) and a connecting section (45), which first coil connection (43) electrically connects to the second coil connection (44) via the first coil section (41), the connecting section (45) and the second coil section (42) ), which first coil section (41) has a first coil axis (47) and which second coil section (42) has a second coil axis (48), which first coil axis (47) and second coil axis (48) are arranged parallel to and spaced from one another , and which first magnetic core (60) extends both through the first sub-coil (41) and through the second sub-coil (42).

Filter inductance skeleton

一种滤波器电感骨架，包括水平安装的底板，底板上表面一端与其垂直安装有第一骨架，所述第一骨架内端面焊接有第二骨架，所述第一骨架和第二骨架的高度一致，所述第一骨架中部开有安装槽，并在安装槽所在位置的第一骨架的外端面设置有凹坑，所述第二骨架的中部开有与安装槽相对应的安装孔，所述安装孔和安装槽内同时安装有磁芯；位于底板的底部设置有多个加强块和引脚。大大提高使用可靠性。

DEMODULATION APPARATUS FOR DIGITAL AUDIO AMPLIFIER

Common mode filter capable of balancing induced inductance and distributed capacitance

一種共模濾波器，包含一內線圈以及一外線圈。一內導線纏繞該捲芯而構成該內線圈，且該內線圈包含複數個內圈。一外導線纏繞該內線圈而構成該外線圈，且該外線圈包含複數個外圈及至少一跨圈。該複數個外圈加上該至少一跨圈的一總和等於該複數個內圈的一數量；該至少一跨圈包含該外線圈的一第N圈，該第N圈繞跨該外線圈的一第（N-1）圈，且該第N圈相鄰該外線圈的該複數個外圈中的二圈；其中N是一整數，N不小於3且不大於該複數個內圈的該數量。

COMMON MODE NOISE FILTER

The present disclosure provides a common mode noise filter that can improve attenuation characteristics of common mode noise over a wide frequency range. The common mode noise filter of the present disclosure includes: two magnetic sections and each of which is made of a magnetic material; and non-magnetic section disposed between magnetic sections in a stacking direction, non-magnetic section being made of a non-magnetic material. Moreover, the common mode noise filter further includes two coils and metal layer. Coils are disposed inside non-magnetic section while facing each other. Metal layer is formed inside at least one of two magnetic sections while being connected to the ground. Metal layers are positioned closer to a lower surface of magnetic section than an upper surface of magnetic section and closer to an upper surface of magnetic section than a lower surface of magnetic section. 1. A common mode noise filter comprising:two magnetic sections, each of the two magnetic sections having a layer containing a magnetic material;a non-magnetic section having a layer containing a non-magnetic material;two coils disposed inside the non-magnetic section; anda metal layer disposed inside at least one of the two magnetic sections, the metal layer being grounded,whereinthe non-magnetic section is disposed between the two magnetic sections in a stacking direction of stacking the two magnetic sections and the non-magnetic section,each of the two coils includes a central section and a conductive wire wound in a plane around the central section,the plane of each of the two coils is disposed along a layer containing the non-magnetic material,the two coils face each other,each of the two magnetic sections has an interface to the non-magnetic section and a surface opposite to the interface in the stacking direction, andthe metal layer is disposed closer to the surface opposite to the interface than the interface.2. The common mode noise filter according to claim 1 , whereina ...

INDUCTOR APPARATUS OPTIMIZED FOR LOW POWER LOSS IN CLASS-D AUDIO AMPLIFIER APPLICATIONS AND METHOD FOR MAKING THE SAME

An inductor is provided, comprising: a first ferrite core piece and a second ferrite core piece, each of which are made of substantially similar materials, exhibit desired electromagnetic properties, and which are fashioned in a substantially similar manner and shape, and wherein each of the first and second ferrite core pieces comprises a substantially planar mating surface, a center post, and a wire core assembly channel, and wherein a first substantially planar mating surface of the first ferrite core piece is adapted to planarly mate with a second substantially planar mating surface of the second ferrite core piece; and a wire core assembly adapted to be substantially self-locating and self-centering about a first or second center post when located in a respective first or second wire core assembly channel.

Gleichtaktfilter

Offenbart wird ein Gleichtaktfilter, der aufweist: ein erstes Wicklungskernteil mit ersten und zweiten Wicklungsbereichen und einem dritten Wicklungsbereich, der zwischen dem ersten und dem zweiten Wicklungsbereichen positioniert ist; und einen ersten und einen zweiten Draht, die in einer gleichen Richtung um das Wicklungskernteil gewickelt sind. Der erste und der zweite Draht stellen einer ersten Wicklungsblock dar, der in dem ersten Wicklungsbereich gewickelt ist, und einen zweiten Wicklungsblock dar, der in einem zweiten Wicklungsbereich gewickelt ist. Der erste und der zweite Draht kreuzen einander in dem dritten Wicklungsbereich. Jeder der ersten und zweiten Wicklungsblöcke weist erste und zweite Wicklungsschichten auf. Die Differenz in einer Anzahl von Windungen zwischen der ersten Wicklungsschicht und der zweiten Wicklungsschicht ist in dem ersten Wicklungsblock größer als in dem zweiten Wicklungsblock. Disclosed is a common mode filter comprising: a first winding core portion having first and second winding areas and a third winding area positioned between the first and second winding areas; and a first and a second wire wound in a same direction around the winding core part. The first and second wires represent a first winding block wound in the first winding area and a second winding block wound in a second winding area. The first and second wires cross each other in the third winding area. Each of the first and second winding blocks has first and second winding layers. The difference in a number of turns between the first winding layer and the second winding layer is greater in the first winding block than in the second winding block.

Elektrisches Filterelement und elektrischer Stromrichter

Elektrisches Filterelement zur Filterung von Wechselspannungsstörungen. Das elektrische Filterelement umfasst zwei dielektrische Leiterplattensubstrate mit einem zwischen den Leiterplattensubstraten angeordneten magnetischen Kern. Der magnetische Kern weist einen materialfreien Innenbereich auf, in dem elektrische Verbindungselemente zwischen den beiden dielektrischen Leiterplattensubstraten vorgesehen sind. Weiterhin können auch in einem Außenbereich des magnetischen Kerns elektrische Verbindungselemente zwischen den beiden dielektrischen Leiterplattensubstraten vorgesehen sein.

Noise filter

Magnetically coupled contactless damper

According to an aspect, an inductor damper circuit includes a shared magnetic core, a primary winding, and a secondary winding. The primary winding includes an inductor winding of a first wire gauge wound about the shared magnetic core. The secondary winding includes a resistive damper winding of a second wire gauge that is less than the first wire gauge and wound about the shared magnetic core in contactless magnetic coupling with the primary winding.

FILTERGERÄT UND ENERGIEWANDLER

Bereitgestellt wird ein Filtergerät, welches zwischen einer Wechselstromenergiequelle (1) und einem PWM-Wandler (2) zu verbinden ist und umfasst: eine erste Wechselstromdrossel (3), eine zweite Wechselstromdrossel (4), welche zwischen dem PWM-Wandler (2) und der ersten Wechselstromdrossel (3) zu verbinden ist, einen Filterkondensator (5), dessen eines Ende mit einem Verbindungsabschnitt (9) zwischen der ersten Wechselstromdrossel (3) und der zweiten Wechselstromdrossel (4) verbunden ist, und ein Gehäuse (15) mit einem Kühllufteinlass (16) und einem Kühlluftauslass (17), welches die erste Wechselstromdrossel (3) und die zweite Wechselstromdrossel (4) enthält, wobei die erste Wechselstromdrossel (3) stromaufwärts der zweiten Wechselstromdrossel (4) angeordnet ist.

Noise filter

本发明的噪声滤波器被插入在要对噪声进行衰减的主电路的电源侧和负载侧之间，利用由线圈和电容器构成的滤波器电路使所述主电路的噪声得到衰减，使所述基板接地图案被分离为多个基板接地图案，并且分别与存在于所述基板之外的共用的接地构件连接，进一步地，使所述基板接地图案为面块图案，使相邻的所述基板接地图案之间的距离为规定间隔以下。

Power source interface module with compact EMI filter

The invention is directed towards a power source interface module for electronic circuits supplied by power from a power source as well as a power supply arrangement for electronic circuits comprising such a power source interface module. The module comprises a first circuit board carrying components, the first circuit board comprising a number of stacked circuit board layers as well as at least two openings, at least a part of a filter comprising at least one pair of magnetically coupled inductive coils, a core with two core legs, each core leg stretching through a corresponding opening in the circuit board, wherein each coil is wound around a corresponding core leg, the turns of the coils stretch through the circuit board layers, and each layer between an upper outer layer and a lower outer layer comprises at least a part of one turn.

COMMON MODE FILTER

Disclosed herein is a common mode filter that includes first and second terminal electrodes provided on the first flange part, third and fourth terminal electrodes provided on the second flange part, a first wire wound around the winding core part and having one end connected to the first terminal electrode and other end connected to the third terminal electrode, and a second wire wound around the winding core part and having one end connected to the second terminal electrode and other end connected to the fourth terminal electrode. The winding core part includes a first winding region, a second winding region, and a third winding region positioned between the first and second winding regions in the axial direction. The first and second wires are bifilar-wound in the first and second winding regions and layer-wound in the third winding region.

WIRELESS POWER TRANSMITTER INCLUDING MINIATURIZED INVERTER FOR REDUCING HARMONICS

According to various embodiments, an example wireless power transmitter may include a transistor configured to output an amplified signal based on an input signal and a driving voltage, a first capacitor coupled to the transistor in parallel, a first LC resonant circuit coupled to the transistor in parallel and including a first inductor and a second capacitor coupled to the first inductor in series, a third capacitor having a first end coupled to an output terminal of the transistor and the first LC resonant circuit, a feeding coil coupled to a second end of the third capacitor in series, and having at least a part configured to form a second LC resonant circuit with the third capacitor, and a transmission resonator including a transmission coil and a fourth capacitor coupled to the transmission coil in series. At least a part of the transmission coil may be magnetically coupled with the feeding coil, and at least a part of power received from the feeding coil may be output to an outside through the transmission resonator.

Filterbauelement

Ein Filterbauelement umfasst einen Gehäusekörper (100), eine erste und mindestens eine zweite Stromschiene (210, 220), die jeweils einen ersten Endabschnitt (211, 221) und einen zweiten Endabschnitt (212, 222), zwischen denen jeweils ein mittlerer Abschnitt (213, 223) angeordnet ist, aufweisen. Die Endabschnitte der mindestens zwei Stromschienen (210, 220) weisen jeweils Anschlüsse (214, 215, 224, 225) zum Anschließen von elektrischen Leitern an das Filterbauelement auf. Der erste und zweite Endabschnitt (211, 212) und der mittlere Abschnitt der ersten Stromschiene sind in einer ersten Ebene (E1) und der erste und zweite Endabschnitt (221, 222) und der mittlere Abschnitt (223) der mindestens einen zweiten Stromschiene (220) sind in einer zweiten von der ersten Ebene verschiedenen Ebene (E2) angeordnet. Dadurch kann das Filterbauelement aus einer Montagerichtung mit den elektrischen Leitern verbunden werden.

CYLINDRICAL BANDSTOP FILTERS FOR MEDICAL LEAD SYSTEMS

A one-piece cylindrical bandstop filter for medical lead systems incorporates parallel capacitive and inductive elements in a compact cylindrical configuration. The compact cylindrical configuration of the bandstop filter does not add significantly to the size or weight of the medical lead system. Preferably, the bandstop filters are of biocompatible materials or hermetically sealed in biocompatible containers. The parallel capacitive and inductive elements are placed in series with the medical lead system, and are selected so as to resonate at one or more selected frequencies, typically MRI pulsed frequencies.

Filter Arrangement For High-Voltage Connector and High-Voltage Connector

A filter assembly for a high-voltage connector is disclosed. The filter assembly has a first and a second bus bar, a filter circuit disposed on a circuit carrier, a ring core, and a filter housing. Each bus bar has a first terminal section, a second terminal section, and a connecting section between the first terminal section and the second terminal section. The filter circuit, the ring core, and at least a part of the first and second bus bars are disposed in the filter housing. The first and second bus bars extend substantially parallel to each other and through the ring core. The circuit carrier is disposed in a region of the filter housing in which the connecting section of each of the first and second bus bars is accommodated.

Board-type noise filter and electronic device

A board-type noise filter having higher noise removal performance than that of a conventional noise filter, and an electronic device including the board-type noise filter are provided. The board-type noise filter includes: a printed wiring board having a wiring pattern formed thereon; a choke coil including a core having a toroidal shape; a frame ground portion fixed to the printed wiring board at a position overlapping with a hollow portion of the choke coil when the toroidal shape of the choke coil is seen in plan view, the frame ground portion being capable of being grounded to a frame ground; and a capacitor having a first terminal connected to the frame ground portion through the wiring pattern.

Switching power supply, emi filter, common mode inductor and winding method thereof

本發明公開了一種開關電源、EMI濾波器、共模電感器及其繞線的方法。該共模電感器繞線包括：一磁芯；兩個多層線圈繞組，對稱繞製在磁芯上；以及，兩個隔離間隙，分別形成在每個多層線圈繞組中；每一隔離間隙用於將一多層線圈繞組從第一層開始分隔為兩個繞線區域。相比於現有技術中，本公開可以在很大程度上提高共模電感器的EMI噪聲抑制能力。

Noise filter

A noise filter (A) includes a case (10) and capacitors (20) accommodated in the case (10). Substantially flat surfaces of the capacitors (20) serve as ground-side electrodes (23). A ground terminal (17) is connected directly to the ground-side electrodes (23), and input/output terminals (15) are connected to input/output-side electrodes (21) of the capacitors (20). A routing space for leads for connecting the capacitors (20) and the ground terminal (17) is not necessary in the case (10). Therefore, the case (10) can be miniaturized.

Power line data signal attenuation device and method

A device and method for attenuating high frequency signals on a power line carrying power is provided. In one embodiment the device may include a toroid shaped core formed of magnetically permeable material and having an inner surface to be disposed substantially around the entire circumference of the power line and a winding formed of a conductor that encircles the toroid. The conductor may include a first spiral coil comprised of a plurality of insulated loops such as concentric loops. The first coil is configured to act as an impedance to high frequency signals traversing the conductor and to allow signals below one hundred hertz to traverse the conductor substantially unimpeded to thereby prevent saturation of the core by the power carried by the power line.

Noise filter

A noise filter inserted between the power source side and the load side of a main circuit for which noise is reduced to attenuate noise of the main circuit using a filter circuit including the coil and the capacitor. In the noise filter, the board ground pattern is separated into a plurality of board ground patterns, the separated board ground patterns are connected to a common ground member present outside the board, the separated board ground patterns are formed as solid patterns, and adjacent board ground patterns of the separated board ground patterns are disposed so as to have a spacing equal to or less than a predetermined distance.

Two-stage noise filter and electronic device including the same

Disclosed are a two-stage noise filter, in which two filters are integrated, and an electronic device including the same. The two-stage noise filter includes a core configured to include a primary side and a secondary side opposite to the primary side; a first filter configured to include a first coil wound on the primary side of the core and a second coil wound on the secondary side of the core; a second filter configured to include a third coil wound on the primary side of the core in series with the first coil and a fourth coil wound on the secondary side of the core in series with the second coil; and an impedance balancer configured to keep a balance of impedance between the first and second filters.

Inductive filtering device with toric magnetic core

An inductive filtering device includes a first toric magnetic core without an air gap formed around a central void; a first electrical conductor formed of turns that are wound around the first magnetic core without passing through the central void, wherein no electrical conductor passes through the central void.

DEMODULATOR OF DIGITAL AUDIO AMPLIFIER

PURPOSE: A demodulator of a digital audio amplifier is provided to minimize the generation of the heat from inductors and a mounting area by using one paired inductor instead of plural inductors. CONSTITUTION: A demodulator of a digital audio amplifier includes the first inductor(316), the second inductor(318), the first capacitor(320), and the second capacitor(322). The first inductor(316) is connected between a positive digital audio signal input terminal and the first end of the load. The second inductor(318) is combined with the first inductor(316). The second inductor(318) is connected between a negative digital audio signal input terminal and the second end of the load. The first capacitor(320) is connected between the first end of the load and a grounding portion. The first capacitor(320) and the first inductor(316) perform a function of a low pass filter. The second capacitor(322) is connected between the second end of the load and the grounding portion. The second capacitor(322 ...

BROAD-BAND HIGH FREQUENCY LOW PASS FILTERS

Filterbaugruppe für Hochvoltverbinderanordnung und Hochvoltverbinderanordnung

Die vorliegende Erfindung bezieht sich auf eine Filterbaugruppe für eine Hochvoltverbinderanordnung sowie auf eine Hochvoltverbinderanordnung. Die Filterbaugruppe (100) umfasst eine erste (102) und mindestens eine zweite (104) elektrisch leitende Stromschiene, wobei jede Stromschiene (102, 104) jeweils einen ersten Anschlussabschnitt (106), der mit einem ersten Verbinderelement (140) verbindbar ist, und einen zweiten Anschlussabschnitt (108), der mit einem zweiten Verbinderelement (144) verbindbar ist, sowie einen zwischen dem ersten und dem zweiten Anschlussabschnitt (106, 108) angeordneten Verbindungsabschnitt (110) aufweist. Die Filterbaugruppe besitzt mindestens ein Ringkernelement (120) und ein Filtergehäuse (112), das eine Filterschaltung auf einem Schaltungsträger (126), das Ringkernelement (120) und jeweils wenigstens einen Teil der ersten und mindestens einen zweiten elektrisch leitenden Stromschienen (102, 104) umschließt. Die Stromschienen verlaufen im Wesentlichen parallel zueinander ...

Tiefpassfilter

Es wird ein Tiefpassfilter (1) beschrieben, das eine stromkompensierte Drossel (2) und einen Kondensator (5) aufweist, wobei der Kondensator (5) parallel zur stromkompensierten Drossel (2) geschalten ist und mit einem Referenzpotential verbunden ist. Ferner ist ein Kern (3) der stromkompensierten Drossel (2) dazu ausgestaltet, einen magnetischen Kreis aufzuweisen, wobei der Kern (3) einen Luftspalt (4) aufweist.

ELECTROMAGNETIC INTERFERENCE FILTER REMOVING ELECTROMAGNETIC INTERFERENCE IN A LOW FREQUENCY BAND AND A HIGH FREQUENCY BAND, A POWER SUPPLY DEVICE, AND DISPLAY DEVICE INCLUDING THE SAME

PURPOSE: An electromagnetic interference filter a power supply device, and display device including the same are provided to reduce parasitic capacitance by forming winding of a choke coil consisting of the electromagnetic interference filter into a single layer flat copper wire. CONSTITUTION: A core(120) has two or more legs. The core forms one closed magnetic circuit by combining two or more legs. A coil(130) is wounded around the two legs in a single layer. The coil has a first flat copper wire and a second flat copper wire removing electromagnetic interference of a common mode in power supply. A support(110) has a mounting area mounting the core. The surface of two or more legs is coated in an insulating state. COPYRIGHT KIPO 2013 ...

DISPOSITIF DE FILTRAGE INDUCTIF A NOYAU MAGNETIQUE TORIQUE

An inductive filtering device includes a first toric magnetic core without an air gap formed around a central void; a first electrical conductor formed of turns that are wound around the first magnetic core without passing through the central void, wherein no electrical conductor passes through the central void.

Cancellation of inductor winding capacitance

An inductor device or filter such as an electromagnetic interference (EMI) filter which includes an inductor provides cancellation of parasitic capacitance of the inductor and extends high frequency performance of the inductor or filter by providing the inductor using split windings and including capacitors to couple signals corresponding to those which are passed by the equivalent parallel capacitance of the inductor to another split winding or an inductor in the ground return path. Cancellation of parasitic capacitance is provided for differential mode and common mode split windings where the split windings may be either inductively coupled or not. Forming the split windings as a bifilar winding to increase coupling coefficient further improves performance and allows cancellation (as distinct from parasitic capacitance reduction) and avoidance of resonance in circuits in which an inductor is not permitted in the ground return path.

Common mode filter capable of balancing induced inductance and distributed capacitance

A common mode filter includes an inner coil and an outer coil. The inner coil is formed of an inner wire and includes a plurality of inner turns. The outer coil is formed of an outer wire and includes a plurality of outer turns and at least one cross turn. A sum of the plurality of outer turns and the at least one cross turn is equal to a number of the plurality of inner turns, and the at least one cross turn comprises a N-th turn of the outer coil wound across a (N−1)th turn of the outer coil, and adjacent to two of the plurality of turns of the outer coil.

Gleichtaktfilter

Offenbart wird ein Gleichtaktfilter, der ein Wicklungskernteil und einen ersten und einen zweiten Draht aufweist, die in einer gleichen Richtung um das Wicklungskernteil gewickelt sind. Eine vorgegebene eine Windung des ersten Drahts kreuzt eine vorgegebene eine Windung des zweiten Drahts eine Vielzahl von Malen.

TWO-STAGE NOISE FILTER AND ELECTRONIC DEVICE INCLUDING SAME

Disclosed are a two-stage noise filter with two filters and an electronic device including the same. The two-stage noise filter includes a core which comprises a first side and a second side facing the first side; a first filter which comprises a first coil wound around the first side of the core and a second coil wound around the second side of the core; a second filter which comprises a third coil series-wound with the first coil around the first side of the core and a fourth coil series-wound with the second coil around the core of the third coil; and an impedance balance part which maintains a balance between the impedance of the first and the second filter. COPYRIGHT KIPO 2016 ...

ノイズ減衰器

EMV-Filteranordnung

Die Erfindung betrifft eine EMV-Filteranordnung, die zwei stromführende Leiterbahnen (5, 6) umfasst, die wenigstens eine erste Kapazität (8), wenigstens eine erste Kompensationsleiterschleife (3), wenigstens eine zweite Kapazität (9) und wenigstens eine zweite Kompensationsleiterschleife (7) in einer Vorschaltung miteinander verbinden, derart, dass die induktive Kopplung zwischen den Kapazitäten verringert wird.

Electromagnetic interference filter, and power supply apparatus and display apparatus including the same

本发明提供了一种用于去除共模电磁干扰的电磁干扰滤波器，其中，由于宽阻频带的原因在单个滤波器中去除低频带和高频带电磁干扰，还提供了一种包括该电磁干扰滤波器的电源装置，以及包括该电磁干扰滤波器的显示装置。所述电磁干扰滤波器包括：芯部件，所述芯部件包括电磁耦合并形成闭合磁路的至少两个引脚；线圈部件，所述线圈部件包括分别在至少两个引脚周围以单层缠绕并用以消除从电力线传输的功率中包含的共模电磁干扰的第一和第二扁铜线；以及支撑部件，所述支撑部件具有安装区域，周围缠绕有线圈部件的芯部件安装在安装区域中。

POWER SOURCE INTERFACE MODULE WITH COMPACT EMI FILTER

The invention is directed towards a power source interface module for electronic circuits supplied by power from a power source as well as a power supply arrangement for electronic circuits comprising such a power source interface module. The module comprises a first circuit board carrying components, the first circuit board comprising a number of stacked circuit board layers as well as at least two openings, at least a part of a filter comprising at least one pair of magnetically coupled inductive coils, a core with two core legs, each core leg stretching through a corresponding opening in the circuit board, wherein each coil is wound around a corresponding core leg, the turns of the coils stretch through the circuit board layers, and each layer between an upper outer layer and a lower outer layer comprises at least a part of one turn.

MAGNETICALLY COUPLED CONTACTLESS DAMPER

According to an aspect, an inductor damper circuit includes a shared magnetic core, a primary winding, and a secondary winding. The primary winding includes an inductor winding of a first wire gauge wound about the shared magnetic core. The secondary winding includes a resistive damper winding of a second wire gauge that is less than the first wire gauge and wound about the shared magnetic core in contactless magnetic coupling with the primary winding.

Power circuit common mode filter

A power circuit common mode filter includes: a U-shaped soft magnetic core and two cylindrical soft magnetic cores, wherein recessed grooves are provided at tops of two side walls of the U-shaped soft magnetic core, and the two cylindrical soft magnetic cores are movably installed in the U-shaped soft magnetic core; two ends of each of the cylindrical soft magnetic cores are embedded in the corresponding recessed grooves, and a coil is set on each of the two cylindrical soft magnetic cores in the U-shaped soft magnetic core; the U-shaped soft magnetic core and the cylindrical soft magnetic cores are both covered with a high-voltage-resist insulating material to form insulating layers; surfaces of the insulating layers at the recessed grooves are provided with electrode layers, and ends of the coil is fixedly connected to the electrode layers through soldering tin. 1124212423211243. A power circuit common mode filter , comprising: a U-shaped soft magnetic core () and two cylindrical soft magnetic cores () , wherein recessed grooves () are provided at tops of two side walls of the U-shaped soft magnetic core (I) , and the two cylindrical soft magnetic cores () are movably installed in the U-shaped soft magnetic core () in parallel; two ends of each of the two cylindrical soft magnetic cores () are embedded in the corresponding recessed grooves (); the two cylindrical soft magnetic cores () are in a same plane after installation , and a coil () is set on each of the two cylindrical soft magnetic cores () in the U-shaped soft magnetic core (); the U-shaped soft magnetic core () and the two cylindrical soft magnetic cores () are both covered with a high-voltage-resist insulating material to form insulating layers; surfaces of the insulating layers at the recessed grooves () are provided with electrode layers , and ends of the coil () is fixedly connected to the electrode layers through soldering tin.2424. The power circuit common mode filter claim 1 , as recited in claim ...

EMC-filter for suppressing noise signals

The invention which relates to an EMC filter for the suppression of interference signals addresses the problem of specifying a solution with which reworking expenditures of an inverter board are reduced and, additionally, installation space restriction as well as reduction of development and production costs are attained. This problem is resolved thereby that in an EMC filter module at least one core of a choke with a winding is disposed on a first mounting board, that at least one of the capacitors is disposed on the first mounting board, that the first mounting board comprises at least two contact means and that the first mounting board of the EMC filter module is disposed with its contact means on a main board of an inverter and is electrically connected thereto.

EMC-FILTER FOR SUPPRESSING NOISE SIGNALS

The invention which relates to an EMC filter for the suppression of interference signals addresses the problem of specifying a solution with which reworking expenditures of an inverter board are reduced and, additionally, installation space restriction as well as reduction of development and production costs are attained. This problem is resolved thereby that in an EMC filter module at least one core of a choke with a winding is disposed on a first mounting board, that at least one of the capacitors is disposed on the first mounting board, that the first mounting board comprises at least two contact means and that the first mounting board of the EMC filter module is disposed with its contact means on a main board of an inverter and is electrically connected thereto.

CYLINDRICAL BANDSTOP FILTERS FOR MEDICAL LEAD SYSTEMS

A one-piece cylindrical bandstop filter for medical lead systems incorporates parallel capacitive and inductive elements in a compact cylindrical configuration. The compact cylindrical configuration of the bandstop filter does not add significantly to the size or weight of the medical lead system. Preferably, the bandstop filters are of biocompatible materials or hermetically sealed in biocompatible containers. The parallel capacitive and inductive elements are placed in series with the medical lead system, and are selected so as to resonate at one or more selected frequencies, typically MRI pulsed frequencies.

Common mode filter

Switching power supply, EMI filter, common mode inductor and coiling method thereof

Common Mode Filter Capable of Balancing Induced Inductance and Distributed Capacitance

A common mode filter includes an inner coil and an outer coil. The inner coil is formed of an inner wire and includes a plurality of inner turns. The outer coil is formed of an outer wire and includes a plurality of outer turns and at least one cross turn. A sum of the plurality of outer turns and the at least one cross turn is equal to a number of the plurality of inner turns, and the at least one cross turn comprises a N-th turn of the outer coil wound across a (N−1)th turn of the outer coil, and adjacent to two of the plurality of turns of the outer coil.

Switching power supply, EMI filter, common mode inductor and wrapping method for the common mode inductor

The present disclosure provides a switching power supply, an EMI filter, a common mode inductor and a wrapping method for the common mode inductor. The common mode inductor includes: a magnetic core; two multilayered coil windings symmetrically wrapped around the magnetic core; and two isolation gaps each of which is formed in respective one of the two multilayered coil windings, and is configured to divide, by beginning from a first layer, the respective one of the multilayered coil windings into two wrapping areas.

BOARD-TYPE NOISE FILTER AND ELECTRONIC DEVICE

Noise filter

A noise filter is provided with a filter circuit including a first condenser and a second condenser; the first condenser and the second condenser are connected in parallel with each other by a first wiring lead for connecting one terminal of the first condenser with one terminal of the second condenser and a second wiring lead for connecting the other terminal of the first condenser with the other terminal of the second condenser; the first wiring lead and the second wiring lead are arranged in such a way as to intersect each other odd-number times.

Method and apparatus to provide compensation for parasitic inductance of multiple capacitors

A coupled winding cancels parasitic inductance of first and second capacitors. In an EMI filter having common mode capacitors and a differential capacitor, first and second windings cancel parasitic inductance of the common mode and differential capacitors.

Two-channel output direct current power EMI filter

本发明提供了一种双路输出直流电源EMI滤波器，包括机壳、电路板、六根引脚，还包括集成三股绕线的共模集成电感、电容与电阻，电路板中设有用于连接共模集成电感、电容与电阻的线路，共模集成电感为寄生电感，电容为寄生电容，电阻为寄生电阻。本发明通过在电路板中设有线路，以将共模集成电感、电容与电阻电性相连，从而形成双路电源滤波电路，以进行电源滤波；而共模集成电感为寄生电感，电容为寄生电容，电阻为寄生电阻；从而在高频段，这些寄生元件占主导地位，以实现具有良好的电磁兼容特性，并减小双路电源滤波之间的相互影响，从而在应用于多电源整机中时，可以减小占用空间，减少器件之间电磁干扰，提高整机电磁兼容性。

POWER FILTER

A power filter is provided, including a circuit board module, an insulating base, several connect terminals, and an inductor. The circuit board module includes a circuit board and several electronic components, wherein the circuit board forms several connect holes thereon and the electronic components are electrically connected to the circuit board. The connect terminals are fixed on the insulating base and each has a connecting part and a clamping part, wherein the connecting parts are joined with the connect holes of the circuit board. The inductor includes at least one wire with both terminals clamped by the clamping parts, and the wire is electrically connected to the circuit board module through the connecting parts.

CYLINDRICAL BANDSTOP FILTERS FOR MEDICAL LEAD SYSTEMS

Power supply type EMI filter

Cancellation of Inductor Winding Capacitance

An inductor device or filter such as an electromagnetic interference (EMI) filter which includes an inductor provides cancellation of parasitic capacitance of the inductor and extends high frequency performance of the inductor or filter by providing the inductor using split windings and including capacitors to couple signals corresponding to those which are passed by the equivalent parallel capacitance of the inductor to another split winding or an inductor in the ground return path. Cancellation of parasitic capacitance is provided for differential mode and common mode split windings where the split windings may be either inductively coupled or not. Forming the split windings as a bifilar winding to increase coupling coefficient further improves performance and allows cancellation (as distinct from parasitic capacitance reduction) and avoidance of resonance in circuits in which an inductor is not permitted in the ground return path.

The switch power supply, EMI filter, the common-mode inductor and its winding method

Noise filter device

A noise filter device includes a ground connection terminal ( 21 ) for grounding, a coil ( 31 ) formed by winding a conductive wire ( 33 ), a pair of capacitors ( 41 ) constituting a π-type filter circuit C together with the coil ( 31 ) and to be electrically connected to the ground connection terminal ( 21 ), and a housing ( 11 ) capable of housing the coil ( 31 ) and the pair of capacitors ( 41 ). The capacitors are both arranged on one surface side of a virtual plane dividing the coil into two in an axial direction, and a conductive shielding plate ( 24 B) to be grounded to the ground connection terminal ( 21 ) is interposed between the capacitors ( 41 ).

Two-stage noise filter and electronic device including the same

Disclosed are a two-stage noise filter, in which two filters are integrated, and an electronic device including the same. The two-stage noise filter includes a core configured to include a primary side and a secondary side opposite to the primary side; a first filter configured to include a first coil wound on the primary side of the core and a second coil wound on the secondary side of the core; a second filter configured to include a third coil wound on the primary side of the core in series with the first coil and a fourth coil wound on the secondary side of the core in series with the second coil; and an impedance balancer configured to keep a balance of impedance between the first and second filters.

FILTER DEVICE HAVING TUNABLE CAPACITANCE, METHOD OF MANUFACTURE AND USE THEREOF

A filter device, method of manufacture and use thereof. The filter device comprises a foil-wound inductor formed by a first conductive foil strip having a first terminal and a second terminal, the first conductive foil strip wound around a core to form a plurality of winding layers such that the first terminal is proximate the core and the second terminal is located at the outermost winding layer, and a continuous dielectric insulating layer between the plurality of layers of the first conductive foil strip; and, a tunable capacitor formed by a second conductive foil strip at least partially encircling the outermost layer of the foil-wound inductor and a dielectric insulating layer disposed therebetween, the second conductive foil strip having a portion that can be trimmed to alter a capacitance between the second conductive foil strip and the first or second terminal of the foil-wound inductor. When used in a circuit, the tunable capacitor can be trimmed to compensate for parasitic capacitance associated with the foil-wound inductor. 1. A filter device , comprising:a foil-wound inductor formed by a first conductive foil strip having a first terminal and a second terminal, said first conductive foil strip wound around a core to form a plurality of winding layers such that said first terminal is proximate said core and said second terminal is located at the outermost winding layer, and a continuous dielectric insulating layer between said plurality of layers of said first conductive foil strip; and,a tunable capacitor, integral to said foil-wound inductor, formed by a second conductive foil strip at least partially encircling the outermost layer of said foil-wound inductor and a dielectric insulating layer disposed therebetween, said second conductive foil strip having a portion that can be trimmed to alter a capacitance between said second conductive foil strip and said first and second terminals of said foil-wound inductor.2. The filter device recited in claim 1 , ...

POWER CONVERSION APPARATUS AND NOISE FILTER

A power conversion apparatus includes: a busbar; a magnetic core disposed to surround the busbar; and a fixing member that supports the magnetic core and is secured to the busbar. A noise filter includes: a magnetic core disposed to surround a busbar of a power conversion apparatus, and a fixing member that supports the magnetic core and is secured to the busbar. 1. A power conversion apparatus comprising:a busbar;a magnetic core disposed to surround the busbar; anda fixing member that supports the magnetic core and is secured to the busbar.2. The power conversion apparatus according to claim 1 , whereinthe busbar includes an opening or a protrusion formed therein, andthe fixing member is positioned with respect to the opening or the protrusion.3. The power conversion apparatus according to claim 1 , whereinthe fixing member is fastened to a terminal for securing the busbar along with the busbar.4. The power conversion apparatus according to claim 2 , whereinthe fixing member is fastened to a terminal for securing the busbar along with the busbar.5. The power conversion apparatus according to claim 2 , whereinthe opening or the protrusion of the busbar includes a first opening through which a fastening member for securing the busbar to a terminal passes,the fixing member is, by the fastening member, secured to the terminal along with the busbar and positioned with respect to the first opening.6. The power conversion apparatus according to claim 1 , whereinthe fixing member is removable from the busbar in a direction intersecting with the busbar.7. The power conversion apparatus according to claim 2 , whereinthe fixing member is removable from the busbar in a direction intersecting with the busbar.8. The power conversion apparatus according to claim 2 , whereinthe opening or the protrusion of the busbar includes a second opening,the fixing member is dividable into a plurality of parts arranged in an opening direction of the second opening,the fixing member is ...

Systems and methods for enhanced high frequency power bias tee designs

Systems and methods for enhanced high frequency power bias tee designs are provided. In one embodiment, a bias tee network comprises: a first port configured to couple across a data line comprising a first electrically conducting line and a second electrically conducting line; a second port configured to couple to a power port of an electrical device; and a distributed impedance interface coupled between the power supply unit and the differential data line, wherein the distributed impedance interface includes a ferrite impedance gradation network having a plurality of ferrite impedance elements series coupled in an order of progressing impedance, wherein a low impedance end of the first ferrite impedance gradation network is coupled to the first port.

DISPOSITIF DE FILTRAGE INDUCTIF A NOYAU MAGNETIQUE TORIQUE

An inductive filtering device includes a first toric magnetic core without an air gap formed around a central void; a first electrical conductor formed of turns that are wound around the first magnetic core without passing through the central void, wherein no electrical conductor passes through the central void. 1. A filtering device comprising:a first cylindrically shaped toric magnetic core without an air gap being wound around an axis of the first core and formed around a central void also lying along the axis of the first core;a first electrical conductor formed of turns that are wound around the first magnetic core without passing through the central void, the first electrical conductor being wound around the first magnetic core along a winding axis that is substantially perpendicular to the axis of the first core,wherein no electrical conductor passes through the central void.2. The device according to claim 1 , wherein a characteristic dimension of a coil produced by winding the first electrical conductor is larger than a largest dimension of a cylindrical section of the central void claim 1 , the characteristic dimension and the largest dimension of the cylindrical section extending in one and the same direction.3. The Device according to claim 2 , wherein the characteristic dimension of the coil is substantially equal to an outer largest dimension of the magnetic core extending in the direction.4. The Device according to claim 1 , further comprising a second toric magnetic core formed around a second central void claim 1 , the first magnetic core being arranged inside the second central void such that the second toric magnetic core encloses a magnetic circuit formed by the first magnetic core.5. The Device according to claim 4 , wherein an air gap is present between the first magnetic core and the second magnetic core claim 4 , the device further comprising at least one magnetic or non-magnetic shim arranged in the air gap.6. The Device according to claim 4 ...

Line filter and electric power supply device comprising same

Disclosed are a line filter and a power supply apparatus including the line filter. The line filter includes a first inductor having a first coil wound around a first bobbin; and a second inductor having a second coil wound around a second bobbin, the second inductor being induced by the first inductor to flow current, wherein the first bobbin and the second bobbin are physically separated from each other. The power supply apparatus includes such a line filter.

Magnetic Structures for Filtering Amplifier Outputs

The technology described in this document can be embodied in an apparatus that includes at least four magnetic cores, wherein each core is for supporting an inductor of a filter circuit. Each of the cores include a first section, and a second section separated from the first section by an adhesive layer. The apparatus also includes an air-core structure to store magnetic energy, the air-core structure including a set of focusing projections that define a hollow cavity. The individual focusing projections of the set are disposed on different sides of the hollow cavity to focus magnetic field from the at least four magnetic cores through the hollow cavity.

Switching power supply, emi filter, common mode inductor and wrapping method for the common mode inductor

The present disclosure provides a switching power supply, an EMI filter, a common mode inductor and a wrapping method for the common mode inductor. The common mode inductor includes: a magnetic core; two multilayered coil windings symmetrically wrapped around the magnetic core; and two isolation gaps each of which is formed in respective one of the two multilayered coil windings, and is configured to divide, by beginning from a first layer, the respective one of the multilayered coil windings into two wrapping areas.

Common mode noise filter

A common mode noise filter includes a laminated body having insulator layers therein and first and second spiral conductors provided on layer planes different from each other. The first spiral conductor includes a first spiral conductor line, a first pad provided at an outer end of the first spiral conductor line, and a second pad provided at an inner end of the first spiral conductor line. The second spiral conductor includes a second spiral conductor line, a third pad provided at an outer end of the second spiral conductor line, and a fourth pad provided at an inner end of the second spiral conductor line. The first spiral conductor line faces the second spiral conductor line. Each of the second pad and the sixth pad overlaps none of the fourth pad and the eighth pad viewing from above.

Filter assembly for high voltage connector placement and high voltage connector placement

【課題】スペースを取らず、信頼性があり、かつ経済的な方法で製造可能なフィルタアセンブリとフィルタアセンブリを備えた高電圧コネクタ配置を提供する。【解決手段】フィルタアセンブリ１００は、第１の導電性バスバー１０２および少なくとも１つの第２の導電性バスバー１０４を備え、各バスバーは、それぞれ第１のコネクタ要素に接続可能な第１の端子部分１０６、第２のコネクタ要素に接続可能な第２の端子部分１０８、ならびに第１の端子部分および第２の端子部分の間に配置された接続部分１１０を有する。フィルタアセンブリは、少なくとも１つのリングコア要素１２０と、フィルタハウジングとを有する。フィルタハウジングは、フィルタ回路が配置される回路キャリア１２６、少なくとも１つのリングコア要素、ならびに第１の導電性バスバーの少なくとも一部および少なくとも１つの第２の導電性バスバーの少なくとも一部を取り囲む。【選択図】図２

Miniature broad band low pass filters with multiturn tape wound inductors

A miniature broadband high frequency low pass filter having at least one multiturn tape wound core inductor and at least one ceramic capacitor whereby the resultant filter exhibits improved insertion loss characteristics even in filter applications having certain amounts of DC or low frequency current passing therethrough.

Apparatus for filtering at least one signal

Noise filter, multistage-connection LC filter, and medical instrument

A noise filter includes a plurality of inductor elements connected with one another in series. The inductor element includes a ring-shaped magnetic core, a winding wound around the magnetic core, and a ground terminal disposed between the magnetic core and the winding, the ground terminal being connected to a ground. The ground terminal includes a conductive part that surrounds at least a part of an outer periphery of the magnetic core.

High-frequency low-pass filter with embedded electrode structure

A three terminal pi filter having embedded electrodes, or a system of embedded electrodes, whereby the embedded structure of the electrodes results in a pi filter having higher insertion losses, better attenuation of unwanted signal power, greater mechanical strength and smaller dimensions than previously known filters.

Filter assembly for high-voltage connector arrangement, and high-voltage connector arrangement

【課題】省スペースで、信頼性があり、かつ経済的な方法で製造可能な高電圧コネクタ配置用フィルタアセンブリ及び高電圧コネクタ配置を提供する。【解決手段】フィルタアセンブリ１００は、第１及び第２の導電性バスバー１０２、１０４を備える。各導電性バスバーは、それぞれ第１及び第２ののコネクタ要素に接続可能な第１及び第２の端子部分１０６、１０８並びに第１及び第２の端子部分の間に配置された接続部分１１０を有する。フィルタアセンブリは、フィルタハウジング１１２と、フィルタハウジング内に保持されるリングコア要素と、を有する。フィルタハウジングは、回路キャリア上のフィルタ回路、リングコア要素並びに第１及び第２の導電性バスバーの一部を取り囲む。各導電性バスバーは、基本的に互いに平行に延び、リングコア要素を貫通し、回路キャリアは、バスバーの接続部分が収容されるフィルタハウジングの領域内に配置される。【選択図】図１

Board-type noise filter and electronic device

Provided are a board-type noise filter having a higher noise elimination capability than the conventional noise filters and an electronic device having that board-type noise filter. A board-type noise filter comprises: a printed wiring board (1) on which a wiring pattern (7) is formed; a choke coil (4) that includes a core (4a) having a toroidal shape; a frame ground part (6) that is fixed to the printed wiring board (1) at a position coinciding with a hollow part of the choke coil (4) when the toroidal shape of the choke coil (4) is seen as a plan view and that can be grounded to the frame ground; and capacitors (2, 3, 8, 9) to which a first terminal is connected via the frame ground part (6) and the wiring pattern (7).

throttle module

Die vorliegende Offenbarung betrifft ein Drosselmodul (1), umfassend: eine Drossel (2) mit einem Magnetkern (4) und mindestens einer Wicklung (5, 6), und einen Träger mit mindestens einem integrierten Kondensator (3, 12), wobei die Drossel (2) auf dem Träger angeordnet ist, wobei das Drosselmodul (1) einen Eingangsanschluss (21, 22) und einen Ausgangsanschluss (23, 24) aufweist, wobei jeder in den Träger integrierte Kondensator (3, 12) mit der Drossel (2) nur durch Anschluss an den Ausgangsanschluss (23, 24) verbunden ist. The present disclosure relates to a choke module (1), comprising: a choke (2) with a magnetic core (4) and at least one winding (5, 6), and a carrier with at least one integrated capacitor (3, 12), the choke (2) is arranged on the carrier, the choke module (1) having an input connection (21, 22) and an output connection (23, 24), each capacitor (3, 12) integrated in the carrier being connected to the choke (2) connected only by connection to the output port (23, 24).

Common mode filter

本发明涉及一种共模滤波器。在使一对导线在中途交叉的共模滤波器中，进一步提高高频特性。具备沿着相同方向卷绕于卷芯部(23)的导线(W1、W2)。导线(W1、W2)构成三个卷绕块(B1～B3)，并且在卷绕块(B1)与卷绕块(B3)之间的区域相互交叉，在卷绕块(B2)与卷绕块(B3)之间的区域相互交叉。根据本发明，卷绕块的数量为奇数，因此，如果在轴向上相邻的卷绕块间使导线(W1)与导线(W2)进行偶数次交叉，则能够使导线(W1、W2)的一端部的位置关系与另一端部的位置关系一致。由此，导线(W1、W2)的一端部与另一端部的条件一致，因此，可以提高反射特性(回波损耗)及噪声变换特性等高频特性。

Broad-band high-frequency low-pass filters

Broad-band high-frequency low-pass filters formed with capacitors which have structures including multilayer and ceramic types and monolayer capacitors. A passive element such as magnetic cores are contained wholly or partially within the capacitor structure. The filter units which may themselves form complete PI filters or L filters may also be combined as the inside portion of a tubular multilayer ceramic capacitor. Rolled capacitors may be used for distributed inductance and magnetic cores in combination with wound inductors or individually may be formed as portions of the filters.

Noise filter

A noise filter inserted between the power source side and the load side of a main circuit for which noise is reduced to attenuate noise of the main circuit using a filter circuit including the coil and the capacitor. In the noise filter, the board ground pattern is separated into a plurality of board ground patterns, the separated board ground patterns are connected to a common ground member present outside the board, the separated board ground patterns are formed as solid patterns, and adjacent board ground patterns of the separated board ground patterns are disposed so as to have a spacing equal to or less than a predetermined distance.

Noise filter

Emc-filter for suppressing noise signals

노이즈 신호를 억제하기 위한 EMC-필터에 관한 본 발명이 해결하고자하는 과제는, 인버터 보드의 처리 비용이 감소되고 그 외에도 구조 공간 제한 및 개발 비용 및 제조 비용의 감소가 달성되는 해결책을 제공하는 것이다. 이러한 과제는, EMC-필터 모듈(10)에서 코일(16)을 갖는 초크(4, 5)의 하나 이상의 코어(11)가 제1 캐리어 보드(14) 상에 배치되고, 커패시터(6, 7, 8, 9) 중 하나 이상의 커패시터가 제1 캐리어 보드(14) 상에 배치되며, 제1 캐리어 보드(14)는 2개 이상의 접촉 수단(17)을 포함하고, EMC-필터 모듈(10)의 제1 캐리어 보드(14)가 인버터(2)의 메인 보드(12)에서 접촉 수단(17) 및 이 메인 보드와 전기적으로 연결되도록 배치됨으로써 해결된다. The problem addressed by the present invention with respect to an EMC-filter for suppressing a noise signal is to provide a solution in which the processing cost of the inverter board is reduced, in addition, structural space limitations and the reduction of development and manufacturing costs are achieved. This problem is achieved in that, in the EMC-filter module 10, one or more cores 11 of the chokes 4, 5 with the coils 16 are arranged on the first carrier board 14, and the capacitors 6, 7, 7. One or more capacitors 8, 9 are disposed on the first carrier board 14, the first carrier board 14 comprising two or more contact means 17, and the first of the EMC-filter module 10. 1 is solved by the carrier board 14 being arranged to be electrically connected to the contact means 17 and this main board in the main board 12 of the inverter 2.

Power filter

A power filter is provided, including a circuit board module, an insulating base, several connect terminals, and an inductor. The circuit board module includes a circuit board and several electronic components, wherein the circuit board forms several connect holes thereon and the electronic components are electrically connected to the circuit board. The connect terminals are fixed on the insulating base and each has a connecting part and a clamping part, wherein the connecting parts are joined with the connect holes of the circuit board. The inductor includes at least one wire with both terminals clamped by the clamping parts, and the wire is electrically connected to the circuit board module through the connecting parts.

Common mode noise filter

広い周波数領域でコモンモードノイズの減衰特性を向上させることができるコモンモードノイズフィルタを提供する。本開示のコモンモードノイズフィルタは、磁性体で構成された２つの磁性体部（１１）、磁性体部（１２）と、積層方向において磁性体部（１１）、磁性体部（１２）に挟まれ、非磁性体で構成された非磁性体部（１３）と、を備える。そして、非磁性体部（１３）の内部に内蔵され互いに対向する２つのコイル（１４）、コイル（１５）と、２つの磁性体部（１１）、磁性体部（１２）のうち少なくとも一方の内部に形成され、グランドに接続される金属層（１６）とを備える。金属層（１６）は、磁性体部（１１）の上面よりも下面に近い位置に位置し、磁性体部（１２）の下面よりも上面に近い位置に位置する。 Provided is a common mode noise filter capable of improving the attenuation characteristics of common mode noise in a wide frequency range. The common mode noise filter of the present disclosure is sandwiched between two magnetic material parts (11) and a magnetic material part (12) made of a magnetic material, and a magnetic material part (11) and a magnetic material part (12) in the stacking direction. It includes a non-magnetic material portion (13) made of a non-magnetic material. Then, at least one of the two coils (14) and coils (15) built inside the non-magnetic material portion (13) and facing each other and the two magnetic material portions (11) and the magnetic material portion (12). It includes a metal layer (16) formed inside and connected to the ground. The metal layer (16) is located closer to the lower surface than the upper surface of the magnetic body portion (11), and is located closer to the upper surface than the lower surface of the magnetic body portion (12).

For inhibiting the Electro Magnetic Compatibility filter of interference signal

涉及用于抑制干扰信号的EMV滤波器(1)的发明所基于的目的是：提出一种解决方案，借此降低换流器电路板的过度加工耗费，并且还实现限制结构空间以及降低开发和制造成本。所述目的通过如下方式实现：在EMV滤波器模块(10)中，具有线匝(16)的扼流圈(4，5)的至少一个芯(11)设置在第一载体电路板(14)上，电容器(6，7，8，9)中的至少一个电容器设置在第一载体电路板(14)上，第一载体电路板(14)具有至少两个接触机构(17)，并且EMV滤波器模块(10)的第一载体电路板(14)借助其接触机构(17)设置在变流器(2)的主电路板(12)上并且与所述主电路板电连接地设置。

Noise filter

A noise filter, inserted between the power-supply side and the load side of a main circuit in which noise is to be attenuated, that attenuates noise in the main circuit by means of a filter circuit comprising a coil and a capacitor. A substrate grounding pattern is divided into a plurality of substrate grounding patterns, each of which is connected to a shared grounding member outside the substrate. Each substrate grounding pattern is a solid pattern, and the distances between adjacent substrate grounding patterns are less than or equal to a prescribed separation.

Power source interface module with compact emi filter

The invention is directed towards a power source interface module for electronic circuits supplied by power from a power source as well as a power supply arrangement for electronic circuits comprising such a power source interface module. The module comprises a first circuit board (22) carrying components, the first circuit board (22) comprising a number of stacked circuit board layers as well as at least two openings (32, 34, 36, 37), at least a part of a filter comprising at least one pair of magnetically coupled inductive coils, a core with two core legs, each core leg stretching through a corresponding opening (32, 34) in the circuit board (22), wherein each coil is wound around a corresponding core leg, the turns of the coils stretch through the circuit board layers, and each layer between an upper outer layer and a lower outer layer comprises at least a part (24, 26, 28, 30) of one turn.

Filter device and power conversion device

A filter device connected between an AC power supply (1) and a PWM converter (2) is provided with: a first AC reactor (3); a second AC reactor (4) connected between the PWM converter (2) and the first AC reactor (3); a filter capacitor (5) having one end connected to a connection point (9) between the first AC reactor (3) and the second AC reactor (4); and a housing (15) that has a cooling wind introducing portion (16) and a cooling wind discharging portion (17) and houses the first AC reactor (3) and the second AC reactor (4). The first AC reactor (3) is arranged on the windward side of the second AC reactor (4).

Noise reduction device, power supply device, and core arrangement method for noise reduction device

【課題】ノイズの低減効果を悪化させずに、コンパクト化を図れるノイズ低減装置、当該ノイズ低減装置を備えた電源装置、及びノイズ低減装置におけるコアの配置方法を提供すること。 【解決手段】ＡＣ−ＤＣ変換回路２０から電源線３０ａ，３０ｂに伝導されるノイズ成分と、ＡＣ−ＤＣ変換回路２０からフレーム接地線３１に伝導されるノイズ成分は異なる。電源線３０ａ，３０ｂはコア６０に巻回され、フレーム接地線３１はコア７０に巻回される。そして、コア支持部材８０は、コア６０，７０それぞれの貫通孔６０ａ，７０ａの貫通方向を互いに平行にし、且つコア６０，７０を貫通方向に関して所定の間隔を隔てて配置されるように、コア６０，７０を固定支持する。 【選択図】図２

Common mode noise filter

This common mode noise filter is provided with: a laminated body, in which a plurality of layer surfaces are configured; and first and second spiral conductive bodies, which are respectively provided on different layer surfaces inside of the laminated body. The first spiral conductive body has: a first spiral conductor line section; a first pad section that is provided at an outer end of the first spiral conductor line section; and a second pad section that is provided at an inner end of the spiral conductor line section. The second spiral conductive body has: a second spiral conductor line section; a third pad section that is provided at an outer end of the second spiral conductor line section; and a fourth pad section that is provided at an inner end of the second spiral conductor line section. The first spiral conductor line section faces the second spiral conductor line section. The second pad section does not overlap the fourth pad section in top view.

Noise filter

Magnetic structures for filtering amplifier outputs

Common mode filter

Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.

Magnetically coupled contactless damper

Systems and methods for enhanced high frequency power bias tee designs

Systems and methods for enhanced high frequency power bias tee designs are provided. In one embodiment, a bias tee network comprises: a first port configured to couple across a data line comprising a first electrically conducting line and a second electrically conducting line;a second port configured to couple to a power port of an electrical device; and a distributed impedance interface coupled between the power supply unit and the differential data line, wherein the distributed impedance interface includes a ferrite impedance gradation network having a plurality of ferrite impedance elements series coupled in an order of progressing impedance, wherein a low impedance end of the first ferrite impedance gradation network is coupled to the first port.

Systems and methods for enhanced high frequency power bias tee designs

Systems and methods for enhanced high frequency power bias tee designs are provided. In one embodiment, a bias tee network comprises: a first port configured to couple across a data line comprising a first electrically conducting line and a second electrically conducting line;a second port configured to couple to a power port of an electrical device; and a distributed impedance interface coupled between the power supply unit and the differential data line, wherein the distributed impedance interface includes a ferrite impedance gradation network having a plurality of ferrite impedance elements series coupled in an order of progressing impedance, wherein a low impedance end of the first ferrite impedance gradation network is coupled to the first port.

噪声滤波器

提供一种用简易的结构能够提高噪声除去性能的噪声滤波器。噪声滤波器(10)具备连接器(20)，连接器(20)将连接有输入输出用电线(WH)的端子零件(22)以使输入输出用电线(WH)导出的状态收纳。噪声滤波器(10)具备：线圈(40)，与输入输出用电线(WH)连接；电容器(30)，与线圈(40)电连接；以及磁性构件(50)。噪声滤波器(10)具备：外壳(60)，收纳电容器(30)、线圈(40)以及磁性构件(50)；和保持构件(70)，将磁性构件(50)以相对于线圈定位(40)的状态保持。

Power circuit common mode filter

A power circuit common mode filter includes: a U-shaped soft magnetic core and two cylindrical soft magnetic cores, wherein recessed grooves are provided at tops of two side walls of the U-shaped soft magnetic core, and the two cylindrical soft magnetic cores are movably installed in the U-shaped soft magnetic core; two ends of each of the cylindrical soft magnetic cores are embedded in the corresponding recessed grooves, and a coil is set on each of the two cylindrical soft magnetic cores in the U-shaped soft magnetic core; the U-shaped soft magnetic core and the cylindrical soft magnetic cores are both covered with a high-voltage-resist insulating material to form insulating layers; surfaces of the insulating layers at the recessed grooves are provided with electrode layers, and ends of the coil is fixedly connected to the electrode layers through soldering tin.

一种滤波器

本发明公开了一种滤波器，包括：航空接插件和圆柱形壳体，航空接插件以及圆柱形壳体形成滤波器的容置空间；设置于容置空间内且与航空接插件连接的多芯线缆，多芯线缆包括多组成对设置的芯线，多芯线缆至少包括成对设置的两芯电源线缆和两芯信号线缆；设置于容置空间内的至少一个磁环，多芯线缆穿过磁环中间的环形空腔并在磁环上绕制预设匝数，成对设置的芯线线径和绕线匝数相同，且对称绕制在磁环上，靠近圆柱形壳体一侧的芯线部分到圆柱形壳体的径向距离相同。多芯线缆至少包括成对设置的两芯电源线缆和两芯信号线缆，两芯电源线缆和两芯信号线缆在磁环上绕制预设匝数形成多组共环的共模电感线圈，实现电源滤波和信号滤波同时进行，滤波效果好。

2단 노이즈 필터 및 이를 포함하는 전자장치

2 개의 필터가 일체로 마련된 2단 노이즈 필터 및 이를 포함하는 전자장치가 개시된다. 2단 노이즈 필터는, 제1 측과 제1 측과 마주보는 제2 측을 구비하는 코어와; 코어의 제1 측에 권선된 제1 코일과 코어의 제2 측에 권선된 제2 코일을 구비하는 제1 필터와; 코어의 제1 측에 제1 코일과 직렬로 권선된 제3 코일과 코어의 제2 측에 제2 코일과 직렬로 권선된 제4 코일을 구비하는 제2 필터와; 제1 및 제2 필터의 임피던스의 평형을 유지하는 임피던스 평형부를 포함하는 것을 특징으로 한다.

Common mode filter

Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.

共模噪声滤波器

提供一种共模噪声滤波器，其具备：层叠体，其在内部构成了多个层面；以及第一螺旋状导体和第二螺旋状导体，其分别设置在层叠体的内部的互不相同的层面。第一螺旋状导体具有：第一螺旋状导线部；第一焊盘部，其设置在第一螺旋状导线部的外侧端；以及第二焊盘部，其设置在螺旋状导线部的内侧端。第二螺旋状导体具有：第二螺旋状导线部；第三焊盘部，其设置在第二螺旋状导线部的外侧端；以及第四焊盘部，其设置在第二螺旋状导线部的内侧端。第一螺旋状导线部与第二螺旋状导线部对置。第二焊盘部与第四焊盘部在俯视下不重叠。

一种网络滤波器结构及其生产工艺

本发明公开了一种PIN针料带，包括一料带、及形成于该料带一侧面的至少一PIN针，所述PIN针远离料带的一端向上弯折形成一引线脚，PIN针与料带连接的一端具有一焊接脚，在所述引线脚上且远离焊接脚的一端下凹形成有一坎线槽，在该坎线槽的两个侧壁上且远离坎线槽的一侧分别向内凹陷形成具有锥形结构的一易折凹槽；该PIN针料带能将引线快速穿过并夹紧在引线脚上，大幅提高元件的生产效率；还公开一种网络滤波器，该网络滤波器具有较强的抗干扰性能，且组装方便，有效提高生产效率；所述PIN针料带采用冲压弯折工艺一体加工成型，并采用注塑工艺将PIN料带与底座结合成一体结构，加工工艺简单，产品精度高，结构稳固。

电力变换装置和噪声滤波器

本发明提供电力变换装置和噪声滤波器，能够在对于噪声降低而言更为有效的位置上对磁性体芯进行定位。电力变换装置(1)具有：母线(310)；磁性体芯(321)，其被配置为包围母线(310)；以及芯保持部件(322)，其对磁性体芯(321)进行支承，并且固定于母线(310)上。

包括用于减少谐波的尺寸减小的逆变器的无线电力发送器

根据各种实施例，示例性无线电力发送器包括：晶体管，其被配置为基于输入信号和驱动电压输出经放大的信号；第一电容器，其并联连接到晶体管；第一LC谐振电路，其与晶体管并联连接，并且包括第一电感器和串联连接到第一电感器的第二电容器；第三电容器，其第一端子连接到第一LC谐振电路和晶体管的输出端子；馈电线圈，其串联连接到第三电容器的第二端子，并且馈电线圈的至少一部分与第三电容器形成第二LC谐振电路；以及发送谐振器，其包括发送线圈和串联连接到发送线圈的第四电容器，其中发送线圈的至少一部分磁耦合到馈电线圈，并且从馈电线圈接收的电力中的至少一部分可以通过发送谐振器输出到外部。

Cancellation of Inductor Winding Capacitance

An inductor device or filter such as an electromagnetic interference (EMI) filter which includes an inductor provides cancellation of parasitic capacitance of the inductor and extends high frequency performance of the inductor or filter by providing the inductor using split windings and including capacitors to couple signals corresponding to those which are passed by the equivalent parallel capacitance of the inductor to another split winding or an inductor in the ground return path. Cancellation of parasitic capacitance is provided for differential mode and common mode split windings where the split windings may be either inductively coupled or not. Forming the split windings as a bifilar winding to increase coupling coefficient further improves performance and allows cancellation (as distinct from parasitic capacitance reduction) and avoidance of resonance in circuits in which an inductor is not permitted in the ground return path.

コモンモードフィルタ

网络滤波器

本申请公开了一种网络滤波器，应用于网络滤波器件技术领域，包括：磁芯模组包括主磁芯，主磁芯依次形成第一绕线部、第二绕线部和第三绕线部；共模电感包括第一线圈和第二线圈，绕设于第一绕线部；隔离变压器线圈组件包括第三线圈和第四线圈，绕设于第二绕线部，第一线圈、第二线圈与第三线圈串联；自耦合变压器线圈组件包括第五线圈和第六线圈，绕设于第三绕线部，第四线圈与第五线圈、第六线圈并联。本申请通过自耦合变压器能够降低共模杂讯，隔离变压器无需单独设置中心抽头，只需两根漆包线绕制即可，且共模电感、隔离变压器和自耦合变压器的线圈组件均绕制在主磁芯上，简化了制作工序，降低了绕线难度。

Noise filter

A noise filter is provided with a filter circuit including a first condenser and a second condenser; the first condenser and the second condenser are connected in parallel with each other by a first wiring lead for connecting one terminal of the first condenser with one terminal of the second condenser and a second wiring lead for connecting the other terminal of the first condenser with the other terminal of the second condenser; the first wiring lead and the second wiring lead are arranged in such a way as to intersect each other odd-number times.

双路输出直流电源emi滤波器

本发明提供了一种双路输出直流电源EMI滤波器，包括机壳、电路板、六根引脚，还包括集成三股绕线的共模集成电感、电容与电阻，电路板中设有用于连接共模集成电感、电容与电阻的线路，共模集成电感为寄生电感，电容为寄生电容，电阻为寄生电阻。本发明通过在电路板中设有线路，以将共模集成电感、电容与电阻电性相连，从而形成双路电源滤波电路，以进行电源滤波；而共模集成电感为寄生电感，电容为寄生电容，电阻为寄生电阻；从而在高频段，这些寄生元件占主导地位，以实现具有良好的电磁兼容特性，并减小双路电源滤波之间的相互影响，从而在应用于多电源整机中时，可以减小占用空间，减少器件之间电磁干扰，提高整机电磁兼容性。

ノイズ減衰器

【課題】医療機器やコンピュータ制御精密電子装置に影響を及ぼすノイズ電磁波障害を改善する。 【解決手段】導体線に重畳するノイズにより電子機器に与えるノイズ電磁波障害を改善するノイズ減衰器である。そして、前記導体線が中空孔を貫通する磁性体筒状コアと、前記磁性体筒状コアに巻き付けた巻線と、前記巻線に接続したインピーダンス素子とを有している。前記磁性体筒状コアに貫通させた導体線にノイズ電流が重畳すると、前記ノイズ電流の一部が前記導体線から巻線へ電磁誘導されて前記巻線に流れ、前記巻線に流れる前記ノイズ電流は前記インピーダンス素子で熱となって消費される。その結果として前記電子機器にノイズ電磁波障害を与えるノイズ電力が低下し、電子機器へのノイズ電磁波障害を改善できる。

用于数字音频放大器的解调装置

公开一种用于数字音频放大器的解调装置，该装置能够解决数字音频放大器的空间、成本和产生热量的问题。该解调装置包括：连接在正数字音频信号输出端子与负载的一端之间的第一电感器；连接在负数字音频信号输出端子与负载的另一端之间并与第一电感器磁耦合的第二电感器；连接在负载的一端与接地端之间并与第一电感器连接以提供低通滤波器的功能的第一电容器；连接在负载的另一端与接地端之间并与第二电感器连接以提供低通滤波器的功能的第二电容器。

開關電源、emi濾波器、共模電感器及其繞線的方法

本發明公開了一種開關電源、EMI濾波器、共模電感器及其繞線的方法。該共模電感器繞線包括：一磁芯；兩個多層線圈繞組，對稱繞製在磁芯上；以及，兩個隔離間隙，分別形成在每個多層線圈繞組中；每一隔離間隙用於將一多層線圈繞組從第一層開始分隔為兩個繞線區域。相比於現有技術中，本公開可以在很大程度上提高共模電感器的EMI噪聲抑制能力。

ノイズ減衰器

【課題】医療機器やコンピュータ制御精密電子装置に影響を及ぼすノイズ電磁波障害を改善する。【解決手段】導体線に重畳するノイズにより電子機器に与えるノイズ電磁波障害を改善するノイズ減衰器である。そして、前記導体線が中空孔を貫通する磁性体筒状コアと、前記磁性体筒状コアに巻き付けた巻線と、前記巻線に接続したインピーダンス素子とを有している。前記磁性体筒状コアに貫通させた導体線にノイズ電流が重畳すると、前記ノイズ電流の一部が前記導体線から巻線へ電磁誘導されて前記巻線に流れ、前記巻線に流れる前記ノイズ電流は前記インピーダンス素子で熱となって消費される。その結果として前記電子機器にノイズ電磁波障害を与えるノイズ電力が低下し、電子機器へのノイズ電磁波障害を改善できる。【選択図】図１

Noise reducer

Disclosed is a noise reducer that ameliorates electromagnetic noise interference. Specifically disclosed is a noise reducer that ameliorates electromagnetic noise interference for electronic equipment caused by noise superimposed on a conductor wire. The conductor wire includes a magnetic cylindrical core that penetrates a hollow hole, a winding coiled around the magnetic cylindrical core, and an impedance element connected to the winding. When a noise current is superimposed on the conductor wire that has been made to penetrate the magnetic cylindrical core, part of the noise current is electromagnetically induced from the conductor wire to the winding and flows to the winding. The noise current that flows to the winding is transformed into heat and consumed by the impedance element. As a result, the noise power that gives electromagnetic noise interference to the electronic devices can be reduced and the electromagnetic noise interference for the electronic devices ameliorated.

Gleichtaktfilter

Gleichtaktfilter (10, 10A, 10B, 10C, 10D), aufweisend:ein Wicklungskernteil (23); undeinen ersten und einen zweiten Draht (W1, W2), die um das Wicklungskernteil (23) gewickelt sind, wobei der erste undder zweite Draht (W1, W2) erste und zweite Windungen aufweisen,wobei die erste Windung des ersten und des zweiten Drahts (W1, W2) einander eine gerade Anzahl von Malen kreuzen, undwobei die zweite Windung des ersten und des zweiten Drahts einander nicht kreuzen.

用于数字音频放大器的解调装置

公开一种用于数字音频放大器的解调装置，该装置能够解决数字音频放大器的空间、成本和产生热量的问题。该解调装置包括：连接在正数字音频信号输出端子与负载的一端之间的第一电感器；连接在负数字音频信号输出端子与负载的另一端之间并与第一电感器磁耦合的第二电感器；连接在负载的一端与接地端之间并与第一电感器连接以提供低通滤波器的功能的第一电容器；连接在负载的另一端与接地端之间并与第二电感器连接以提供低通滤波器的功能的第二电容器。

Elektrisches filterelement und elektrischer stromrichter

Elektrisches Filterelement (1) zur Filterung von Wechselspannungsstörungen. Das elektrische Filterelement (1) umfasst zwei dielektrische Leiterplattensubstrate (11, 12) mit einem zwischen den Leiterplattensubstraten angeordneten magnetischen Kern (13). Der magnetische Kern (13) weist einen materialfreien Innenbereich (13a) auf, in dem elektrische Verbindungselemente (21-24) zwischen den beiden dielektrischen Leiterplattensubstraten (11, 12) vorgesehen sind. Weiterhin können auch in einem Außenbereich des magnetischen Kerns (13) elektrische Verbindungselemente (31, 32) zwischen den beiden dielektrischen Leiterplattensubstraten (11, 12) vorgesehen sein.

コモンモードフィルタ

【課題】高周波特性の微調整が可能なコモンモードフィルタを提供する。【解決手段】巻芯部２３と、巻芯部２３に同方向に巻回された第１及び第２のワイヤＷ１，Ｗ２とを備える。第１のワイヤＷ１の所定の１ターンは、第２のワイヤＷ２の所定の１ターンと２回以上交差する。本発明によれば、第１及び第２のワイヤＷ１，Ｗ２が同一ターンにおいて複数回交差していることから、交差回数や交差位置によって、コモンモードフィルタの高周波特性を微調整することが可能となる。【選択図】図３

Vorrichtung zum Absorbieren bzw. Reduzieren von Störsignalen auf einem elektrischen Leiter

Es wird eine Vorrichtung (1) zum Absorbieren bzw. Reduzieren von Signalstörungen auf einem elektrischen Leiter vorgeschlagen, mit einer Durchführungsöffnung für den elektrischen Leiter und mit einer Dämpfungseinrichtung, die ein mehrteiliges Dämpfungselement aus einem Dämpfungsmaterial umfasst, das elektromagnetische Störsignale dämpft, mit einem Gehäuse, in dem sich das Dämpfungselement unterbringen lässt und das zur Anbringung des Dämpfungselements am elektrischen Leiter vorgesehen ist, wobei das Gehäuse mehrere Gehäuseteile (2, 3) umfasst, wobei in einem zusammengesetzten Zustand der Vorrichtung das Dämpfungselement im Gehäuse einen in der Durchführungsöffnung angeordneten Leiter ringförmig umgibt. Erfindungsgemäß ist an einem innenseitigen Oberflächenabschnitt wenigstens eines der Gehäuseteile (2, 3) eine kissenförmige Einlage angebracht, die im zusammengesetzten Zustand der Vorrichtung (1) zwischen dem Gehäuse und dem Dämpfungselement angeordnet ist, wobei die kissenförmige Einlage auf ein Dämpfungsteil des Dämpfungselements drückt und wobei die Einlage aus einem weicheren Material als die Gehäuseschale hergestellt ist.

可平衡感应电感及分布电容的共模滤波器

一种共模滤波器，包含一内线圈以及一外线圈。一内导线缠绕该卷芯而构成该内线圈，且该内线圈包含多个内圈。一外导线缠绕该内线圈而构成该外线圈，且该外线圈包含多个外圈及至少一跨圈。该多个外圈加上该至少一跨圈的一总和等于该多个内圈的一数量；该至少一跨圈包含该外线圈的一第N圈，该第N圈绕跨该外线圈的一第(N‑1)圈，且该第N圈相邻该外线圈的该多个外圈中的二圈；其中N是一整数，N不小于3且不大于该多个内圈的该数量。

ノイズフィルタ

簡易な構成でノイズ除去性能を向上させ得るノイズフィルタを提供する。　ノイズフィルタ（１０）は、入出力用電線（ＷＨ）が接続された端子金具（２２）を、入出力用電線（ＷＨ）を導出させた状態で収容するコネクタ（２０）を備えている。ノイズフィルタ（１０）は、入出力用電線（ＷＨ）に接続されたコイル（４０）と、コイル（４０）と電気的に接続されたコンデンサ（３０）と、磁性部材（５０）と、を備えている。ノイズフィルタ（１０）は、コンデンサ（３０）、コイル（４０）、及び磁性部材（５０）を収容するケース（６０）と、磁性部材（５０）をコイル（４０）に対して位置決めした状態で保持する保持部材（７０）と、を備えている。

Filter device and power converter

Provided is a filter device to be connected between an AC power source (1) and a PWM converter (2), which includes a first AC reactor (3), a second AC reactor (4) that is connected between the PWM converter (2) and the first AC reactor (3), a filter capacitor (5) whose one end is connected to a connecting portion (9) between the first AC reactor (3) and the second AC reactor (4), and a housing (15) having a cooling air inlet (16) and a cooling air outlet (17) and containing the first AC reactor (3) and the second AC reactor (4), wherein the first AC reactor (3) is disposed upwind of the second AC reactor (4).

滤波装置及电力转换装置

连接于交流电源(1)与PWM转换器(2)之间的滤波装置具备：第一AC电抗器(3)；第二AC电抗器(4)，其连接于PWM转换器(2)和第一AC电抗器(3)之间；滤波电容器(5)，其一端连接于第一AC电抗器(3)和第二AC电抗器(4)的连接点(9)；以及框体(15)，其具有冷却风进入部(16)和冷却风排出部(17)，在框体(15)容纳了第一AC电抗器(3)和第二AC电抗器(4)，第一AC电抗器(3)配置于第二AC电抗器(4)的上风侧。

フィルタ装置及び電力変換装置

交流電源（１）とＰＷＭコンバータ（２）との間に接続されるフィルタ装置において、第１ＡＣリアクトル（３）と、ＰＷＭコンバータ（２）と第１ＡＣリアクトル（３）との間に接続される第２ＡＣリアクトル（４）と、第１ＡＣリアクトル（３）と第２ＡＣリアクトル（４）との接続点（９）に一端が接続されたフィルタコンデンサ（５）と、冷却風取込部（１６）と冷却風排出部（１７）とを有し、第１ＡＣリアクトル（３）と第２ＡＣリアクトル（４）を収納した筐体（１５）と、を備え、第１ＡＣリアクトル（３）は、第２ＡＣリアクトル（４）の風上側に配置される。

필터 장치 및 전력 변환 장치

교류 전원(1)과 PWM 컨버터(2)의 사이에 접속되는 필터 장치에 있어서, 제1 AC 리액터(3)와, PWM 컨버터(2)와 제1 AC 리액터(3)의 사이에 접속되는 제2 AC 리액터(4)와, 제1 AC 리액터(3)와 제2 AC 리액터(4)의 접속점(9)에 일단이 접속된 필터 콘덴서(5)와, 냉각풍 취입부(16)와 냉각풍 배출부(17)를 가지고, 제1 AC 리액터(3)와 제2 AC 리액터(4)를 수납한 케이스(15)를 구비하고, 제1 AC 리액터(3)는 제2 AC 리액터(4)의 풍상측에 배치된다.

滤波装置及电力转换装置

连接于交流电源(1)与PWM转换器(2)之间的滤波装置具备：第一AC电抗器(3)；第二AC电抗器(4)，其连接于PWM转换器(2)和第一AC电抗器(3)之间；滤波电容器(5)，其一端连接于第一AC电抗器(3)和第二AC电抗器(4)的连接点(9)；以及框体(15)，其具有冷却风进入部(16)和冷却风排出部(17)，在框体(15)容纳了第一AC电抗器(3)和第二AC电抗器(4)，第一AC电抗器(3)配置于第二AC电抗器(4)的上风侧。

Emc滤波装置

本实用新型涉及一种EMC滤波装置，其包括两根导电印制导线(5、6)，所述两根导电印制导线使至少一个第一电容(8)、至少一个第一补偿导体回路(3)、至少一个第二电容(9)和至少一个第二补偿导体回路(7)在前置电路中相互连接，使得降低了电容之间的电感性耦合。

Common mode filter

Disclosed herein is a common mode filter that includes: a winding core part including first and second winding areas and a third winding area positioned between the first and second winding areas; and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block wound in the first winding area and a second winding block wound in the second winding area. The first and second wires cross each other in the third winding area. Each of the first and second winding blocks has first and second winding layers. The difference in a number of turns between the first winding layer and the second winding layer is larger in the first winding block than in the second winding block.

噪声滤波器

本发明的噪声滤波器包括由第一电容器和第二电容器构成的滤波器电路，第一及第二电容器通过第一布线和第二布线并联连接，该第一布线使第一电容器的一个端子与第二电容器的一个端子相连，该第二布线使第一电容器的另一个端子与第二电容器的另一个端子相连，第一布线与第二布线配置成交叉奇数次。