СИЛОВОЙ ПРЕОБРАЗОВАТЕЛЬ ПОСТОЯННОГО ТОКА В ПОСТОЯННЫЙ ТОК, ИНДУКТИВНО-ЕМКОСТНЫЙ ФИЛЬТР И СПОСОБ ОСЛАБЛЕНИЯ МАГНИТНОГО ПОЛЯ В СИЛОВОМ ПРЕОБРАЗОВАТЕЛЕ

Изобретение относится к области электротехники и может быть использовано в силовых преобразователях транспортного средства. Техническим результатом является улучшение фильтрации помех в шине питания. Силовой преобразователь постоянного тока в постоянный ток включает в себя схему переключения и индуктивно-емкостный фильтр, выполненный с возможностью уменьшения паразитной индуктивности. Индуктивно-емкостный фильтр включает в себя индуктор, конденсатор и катушку, размещенную и ориентированную относительно и электрически соединенную с конденсатором. Катушка, размещенная с конденсатором, обеспечивает течение пульсирующего тока, вызванного работой схемы переключения через конденсатор и катушку с противоположным направлением. Пульсирующий ток, текущий через катушку, ослабляет магнитное поле, создаваемое конденсатором, при уменьшении паразитной индуктивности конденсатора. 3 н. и 17 з.п. ф-лы, 9 ил., 1 табл.

Пассивный аналоговый фильтр нижних частот седьмого порядка

Полезная модель относится к технике защиты от утечки акустической (речевой) информации. Пассивный аналоговый фильтр нижних частот седьмого порядка представляет собой электронный модуль, состоящий из трех диодов 3, 4 и 10, двенадцати катушек индуктивности 1, 2, 5, 6, 8, 11, 13, 15, 16, 18, 30, 31 и шести конденсаторов 7, 9, 12, 14, 17 и 19. Радиоэлементы соединены по электрической каскадной схеме, обеспечивающей ослабление информационных (речевых) электрических сигналов уровня менее 100 мВ в соединительных линиях вспомогательных технических средств и систем, возникших вследствие акустоэлектрических преобразований речевой информации. Технический результат предлагаемой полезной модели состоит в получении гарантированного затухания амплитудно-частотной характеристики в диапазоне частот от 90 Гц до 400 МГц, а именно пассивное ослабление дифференциального электрического сигнала звуковых частот и высокочастотного навязывания за счет фильтрации данных сигналов по каскадам фильтра. 3 ил.

ПОЛОСОВОЙ ПЕРЕСТРАИВАЕМЫЙ ФИЛЬТР

Предлагаемая полезная модель относится к радиоэлектронике и может быть использована во входных цепях радиоприемных устройств для частотной селекции сигналов. Задачей полезной модели является увеличение затухания в полосе задерживания. Полосовой перестраиваемый фильтр, содержащий первую катушку индуктивности, первый вывод которой соединен с первым выводом второй катушки индуктивности, при этом второй вывод первой катушки индуктивности подключен к общей шине, фильтр также содержит четыре идентичные по структуре секции, каждая из которых содержит N параллельно включенных варикапов, при этом аноды варикапов первой секции соединены со вторым выводом второй катушки индуктивности, аноды варикапов второй и третьей секций соединены друг с другом и одновременно через третью катушку индуктивности подключены к общей шине, аноды четвертой секции соединены со вторым выводом четвертой катушки индуктивности, первый вывод которой соединен с первым выводом пятой катушки индуктивности, при этом второй вывод ...

ПЕРЕСТРАИВАЕМЫЙ АКТИВНЫЙ RC-ФИЛЬТР

Перестраиваемый активный RC-фильтр относится к радиотехнике и может использоваться в селективных узлах различных радиоэлектронных системах и устройствах, системах автоматического управления, акустической и гидроакустической аппаратуре, включая приборы для анализа шумов и вибраций. Он может применяться для подавления определенных спектральных составляющих сигнала и сетевых помех исследуемых сигналов в информационно-измерительных системах, в биомедицинской аппаратуре для диагностики и физиологических исследований, отличающийся тем, что дополнительно введены восемь резисторов, второй диффренциальный, третий и четвертый операционные усилители, первые выводы седьмого и восьмого резисторов подключены к инвертирующему входу третьего операционного усилителя, а их вторые выводы - к выходам первого и третьего операционных усилителей соответственно, первые выводы девятого и десятого резисторов подключены к инвертирующему входу второго диффренциального усилителя, а их вторые выводы - к выходам третьего ...

Фильтр гармоник коротковолнового передатчика

Изобретение относится к области радиотехники. Технический результат заключается в повышении мощности передаваемого сигнала при одновременном уменьшении габаритных размеров. Фильтр гармоник коротковолнового передатчика содержит в средней своей части N средних катушек индуктивности, первый и второй конденсатор переменной емкости, N входных Г-образных звеньев, содержащих в продольном плече входную катушку индуктивности, N выходных Г-образных звеньев, содержащих в продольном плече выходную катушку индуктивности, при этом каждое входное Г-образное звено содержит на выходе в поперечном плече первый конденсатор постоянной емкости, а каждое выходное Г-образное звено содержит на входе в поперечном плече второй конденсатор постоянной емкости, каждая средняя катушка индуктивности и связанные с ней индуктивной связью входная и выходная катушки индуктивности соответствующих входного и выходного Г-образных звеньев выполнены в виде трех соосно расположенных на определенном расстоянии друг от друга цилиндрических ...

СИЛОВОЙ ПРЕОБРАЗОВАТЕЛЬ ПОСТОЯННОГО ТОКА В ПОСТОЯННЫЙ ТОК, ИНДУКТИВНО-ЕМКОСТНЫЙ ФИЛЬТР И СПОСОБ ОСЛАБЛЕНИЯ МАГНИТНОГО ПОЛЯ В СИЛОВОМ ПРЕОБРАЗОВАТЕЛЕ

ELEKTROSTATISCHE SCHUTZVORRICHTUNG

Aspekte der Erfindung stellen eine elektrostatische Schutzvorrichtung zum Schutz eines Eingangsanschlusses einer elektronischen Schaltung bereit. Die elektrostatische Schutzvorrichtung umfasst eine gestapelte Spulenbaugruppe mit vier Anschlüssen. Die elektrostatische Schutzvorrichtung umfasst ferner eine Human-Body-Model-ESD-Schutzschaltung, eine Charge-Device-Model-ESD-Schutzschaltung und eine Impedanzanpassungsschaltung. Die ESD-Schutzschaltung des Human-Body-Model-ESD-Schutzschaltung, die ESD-Schutzschaltung des Charge-Device-Model-ESD-Schutzschaltung und die Impedanzanpassungsschaltung sind mit separaten Anschlüssen verbunden, die aus den vier Anschlüssen ausgewählt werden.

BREITBAND-REKONFIGURIERBARES IMPEDANZANPASSUNGSNETZWERK

Ausführungsbeispiele beziehen sich auf ein transformatorbasiertes Impedanzanpassungsnetzwerk, das seine charakteristische Impedanz durch ein Aktivieren unterschiedlicher Induktivitätszweige auf einer Primärseite und optional auf der Sekundärseite, ändern kann. Eine Primär-Seite-Transformatorschaltung umfasst eine Primärinduktivität und eine Sekundärinduktivität, ausgebildet, um Impedanzanpassung über ein erstes Frequenzband bereitzustellen. Ein oder mehrere zusätzliche Induktivitätszweige sind schaltbar mit entweder einer oder beiden der Primär- und Sekundärinduktivität gekoppelt, um die Impedanzanpassungscharakteristika über zusätzliche Betriebsfrequenzen zu modifizieren. Ein oder mehrere LC-Filterzweige können an dem Ausgang der Sekundärseite umfasst sein, um harmonische Frequenzen in jedem der Betriebsfrequenzbänder zu filtern.

High frequency filter for e.g. band-pass filter, has balanced circuits connected with each other by coupling capacitor divider circuit and connected with input and output terminals by connections over capacitors, respectively

The filter has balanced circuits (3, 4) connected in rows between an input terminal (1) and an output terminal (2) and connected with each other by a coupling capacitor divider circuit (5). The input terminal is connected to a terminal of the circuit (3) over a coupling capacitor (6), and the circuit (3) is formed with a pair of inductive elements (7, 8) arranged opposite to each other. The circuit (3) is connected with the input terminal by a connection over a capacitor, and the circuit (4) is connected with the output terminal by a connection over another capacitor.

TIEFPASS FÜR EINE ADSL-FREQUENZWEICHE

HIGH FREQUENCY TRANSFORMER

BAND PASS FILTERS

... 1280308 Filter networks INTERNATIONAL STANDARD ELECTRIC CORP 2 Oct 1969 [9 Oct 1968 10 Oct 1968] 48568/69 Heading H3U In a band pass filter comprising magnetically coupled coils the band widths to either side of the centre frequency may be varied independently of each other. The two peaks of the pass band situated to either side of the centre frequency correspond to lower and upper resonant frequencies and these frequencies are varied independently by varying independently the two different resultant magnetic fields produced at two different frequencies within the pass band when the respective fields of the coils either aid or oppose. As shown in Fig. 4, coils 1, 2 are magnetically coupled to each other and also to a closed conducting loop 3. An open loop 7 is provided in the loop 3 and constitutes a reactive impedance, this loop 7 being connected via a link 6 and a further open loop 5 to the opposite side of the loop 3. The loop 5 also constitutes a reactive impedance, the impedances of ...

Laminated LC low-pass filter with trap circuit

In a laminated LC filter, the inductors of a low-pass filter and the inductor of a trap circuit are disposed in different layers in the lamination direction of the insulator sheets. Inductor via-holes 11,12,15 are connected to each other in the lamination direction of the insulator sheets to form columnar inductors. The inductor via-holes are electrically connected in series with coil-shaped conductor patterns to form inductors, respectively. The others of the inductor via-holes are electrically connected in series with a coil-shaped conductor pattern to form an inductor. Moreover, an inductor via-hole singly forms a columnar inductor.

Impedance converting circuit and communication terminal apparatus

Improvements in or relating to a method and apparatus for wireless tuning circuits

... 366,273. Impedance networks. BRANCH, L. E. T., 15, The Crescent, Ilford, Essex. Jan. 26, 1931, No. 2485. [Class 40 (iii).] An arrangement of inductances for a multiwave-range band-pass filter comprises pairs or sets of coils, one pair or set for each wave range, so disposed on a common supporting structure that the coils of each pair or set have a mutual inductance such that, when they form parts of separate tuned circuits, the circuits can be tuned substantially independently, the mutual inductance providing the requisite inductive coupling for the combined circuits to have a band-pass characteristic. In one arrangement for a dualrange filter a pair of coils for the lower range is mounted near the ends of a tubular former with a band of metal, or one or more short-circuited turns of wire arranged midway between them, to reduce the inductive coupling. A second pair of coils for the long range are mounted on flanged rings arranged coaxially on each side of the former with their axes at right-angles ...

Methods of preparation of ((Diarylméthoxy) alcoyl) - 1 pyrrolidines and piperidins.

DYNAMIC HARMONIC FILTERS FOR AN ALTERNATING CURRENT SYSTEM

PASSIVE SIGNAL PROCESSING COMPONENTS ON LIQUID CRYSTAL POLYMER AND MULTI-LAYER POLYMER BASIS FOR HF-/DRAHTLOS-MULTIPLE REEL-APPLICATIONS

Multiple level spiral inductors used to form a filter in a printed circuit board

"(DIARYLMETHOXY ALKYL)-1-PYRROLIDINES AND-PIPERIDINES"

AC BRANCH POWER DISTRIBUTION FILTER

AC BRANCH POWER DISTRIBUTION FILTER An AC branch power distribution filter is provided for supplying AC power to a plurality of different load devices from a common external AC power source that eliminates the need for a separate protection device at each power outlet with the load devices. A plurality of elongate, flat conductors are coupled to the AC power source and include a neutral conductor, a ground conductor and at least one live conductor. The elongate flat conductors are parallel and spaced apart in an electrically insulated casing member. An electrically conductive shield member is electrically connected to the ground conductor and extends lengthwise of the elongate flat conductors overlying the insulative casing member. The shield member provides a shunt capacitance between ground potential and each of the live conductors and the neutral conductor. This distributed capacitance is utilized as the shunt element of the distribution filter. Transition filtering circuitry is connected ...

FOUR-TERMINAL NETWORK

The invention provides a four-terminal network, especially for filtering frequency bands or values, behaves as an ideal winding, therefore ensures high selectivity and, if equipped with an iron core, the possibility of carrying out switch operations. The network includes a pair of closely adjacent inductor coils having parallel turns for current in opposite directions, and equal inductance with a capacitor connected to at least one end of one of the coils.

FOUR-TERMINAL NETWORK

RADIO RECEIVER

... 20104-8640 A radio receiver includes a filter having one or more filter sections. Each filter section has a shield provided with several helical resonators. Each helical resonator has a quarter-wavelength transmission line wound in the form of a helix with the transmission lines adjacent resonators being wound in opposite directions and being grounded at opposite ends, whereby the frequency response of the filter section has a transmission notch on the high frequency side of the filter section passband. At least one grounded shielding pin is disposed between adjacent helical resonators at such locations whereby the transmission notch in the frequency response of the filter section is steered to be coincident with or near to the image frequency. By using such a filter section as distinct from one using conventional helical resonators a transmission notch is generated on the high frequency side of the passband and by steering the transmission notch in the frequency response to be coincident ...

MULTILAYER MICROELECTRONIC CIRCUIT WITH TRIMMABLE CAPACITORS

In accordance with the present invention, there is provided a multilayer microelectronic circuit which is adjustable in capacitance. The circuit comprises a main capacitor dielectric layer, a main capacitor first electrode disposed on one of opposite sides of the main capacitor dielectric layer, a main capacitor second electrode disposed on the other of the opposite sides of the main capacitor dielectric layer in a way as to oppose the main capacitor first electrode through the main capacitor dielectric layer, a first trimming capacitor dielectric layer disposed on a side of the main capacitor first electrode opposite to the main capacitor dielectric layer, a first trimming capacitor electrode disposed on a side of the first trimming capacitor dielectric layer opposite to the main capacitor first electrode in a way as to oppose the main capacitor first electrode through the first trimming capacitor dielectric layer, a second trimming capacitor dielectric layer disposed on a side of the ...

Elektrisches Netzwerk, welches mindestens eine mit einer Impedanz in Serie geschaltete Spule aufweist, und in welchem Verluste, die durch die Eigenresonanz der Spulen bedingt sind, nicht auftreten.

Einrichtung zur Dämpfung von Oberwellen in impulsmodulierten Sendern

Verfahren zum Erzeugen einer stabilen Spannung

Hochfrequenz-Siebschaltung

Mechanism for absorbing the harmonious river of an engine.

Filter network for high fidelity installation such as television set

The filter network has a transformer (1) having a primary winding (2) which is to be connected to the neutral terminal and to a phase of a socket of the network, a secondary winding and an electrostatic screen (4) located between the windings and being connected to the ground terminal of the socket. A high frequency filter has two terminals connected to the secondary winding, and two other terminals (N',P') comprising the output terminals of the filter network. The filter has two inductors (5,6) and a capacitor (7), and one terminal of each inductor and the capacitor are connected to the secondary winding. The other terminals of the inductors comprise the output terminals of the filter.

Frequency stabilization circuit, frequency stabilization device, antenna device, communication terminal apparatus, and impedance transformation element

Having a reference circuit of the multi-layer circuit element

Conduction path with noise filter

Filter

Improvements brought to the electric wave screens

ANTIRESONANT CIRCUIT HAS MUSICAL FREQUENCY

((DIARYLMETHOXY) ALCOYL) - 1 PYRROLIDINES AND PIPERIDINS, METHOD OF PREPARATION AND DRUGS THE CONTAINER

DEVICE FOR CONNECTING AN ELECTRICAL ELEMENT TO A COMMUNICATION LINE

CIRCUIT OF REDUCTION OF THE LEAKAGE CURRENTS IN THE CELLS OF FILTERING

ELECTRICAL POWER/DATA COUPLER

La présente invention concerne un coupleur électrique puissance/données qui comporte : - un transformateur d'émission (30) constitué d'un enroulement (31) pour recevoir des signaux de données et de deux enroulements (32 et 33) reliés en série entre eux avec un point commun et deux bornes destinées à être reliées à une première paire de fils (T) d'un bus (B) afin de délivrer à ladite paire de fils (T), en mode différentiel, les signaux de données présents aux bornes du premier enroulement (31), - un transformateur de réception (50) constitué de deux enroulements (52 et 53) reliés en série entre eux avec un point commun et deux bornes destinées à être reliées à une seconde paire de fils (R) dudit bus (B) pour recevoir, en mode différentiel, des signaux de données présents sur la paire de fils (R) du bus (B) et un enroulement (51) pour délivrer lesdits signaux de données. Il comporte de plus un transformateur d'isolation galvanique (170) qui comporte un premier enroulement (171) dont les bornes ...

복합 전자 부품

... 접합되는 복수의 전자 부품 중 기판형의 전자 부품에서의 상면 도체끼리의 절연 저항의 저하를 억제할 수 있는 복합 전자 부품을 제공한다. 복합 전자 부품(1A)은 제1 전자 소자(20A)와, 제2 전자 소자(10)와, 접합재(31)를 포함한다. 제1 전자 소자(20A)는, 기부(21)와 기부(21)의 상면(21a)에 마련된 상면 도체(24A)를 갖는다. 제2 전자 소자(10)는, 기부(21)의 상면(21a)에 대향하는 하면(11a)을 갖는 소자 본체(11)와, 소자 본체(11)의 하면(11a)에 마련된 단자 도체(14A)를 갖는다. 접합재(31)는 상면 도체(24A)와 단자 도체(14A)를 접합한다. 상면 도체(24A)는, 중량비에서 최대의 금속 성분이 Ag인 도전층(24a)을 포함한다. 도전층(24a)의 측면(24a1)은, 보호 금속막으로서의 도전층(24b, 24c)에 의해 덮이고, 보호 금속막으로서의 도전층(24b, 24c)에 함유된 중량비에서 최대의 금속 성분은 Ag 및 Cu 이외이다.

Electric compressor for vehicle

Coil block and electronic device with the filtering coil block

Electronic Parts

A laminating filter

유도성 요소 및 LC 필터

... 본 개시는 Q 값을 낮출 수 있는 유도성 요소를 제공한다. 유도성 요소는 환형 코어를 덮는 제 1 커버 및 제 2 커버 및 코어, 제 1 커버 및 제 2 커버의 영역 둘레에 감겨진 제 1 권선 및 제 2 권선을 포함한다. 제 1 커버는 코어의 내주면의 일부, 외주면의 일부 및 축 방향의 일 단부 측상의 단부면을 덮는다. 제 2 커버는 코어의 내주면의 일부, 외주면의 일부 및 축 방향의 다른 단부 측상의 단부면을 덮는다.

LAMINATED BANDPASS FILTER

There is provided a structure of a laminated bandpass filter having a small size, a low loss, a steep attenuation from a passband to a band outside the passband, and a little ripple within a band. A capacitance is formed between a ground electrode (109) formed on a ground electrode forming layer (101) and each of capacitor electrodes (111 to 113) formed on a capacitor electrode forming layer (102). Via electrodes (131 to 136) and line electrodes (116 to 118) constitute a plurality of inductor electrodes. The loop planes of the inductor electrodes are partially overlapped with each other when viewed in the inductor electrode arrangement direction. The line electrode (117) is formed on a first line electrode forming layer (104). The line electrodes (116, 118) are formed on a second line electrode forming layer (105). COPYRIGHT KIPO & WIPO 2010 ...

적층형 공통 모드 필터

... 본 개시에서는 2채널을 구성하는 복수의 코일 패턴을 구비한 전극층의 상면과 하면에 제1 커패시턴스층 및 제2 커패시턴스층을 각각 배치된 적층형 공통 모드 필터를 제시한다. 제시된 적층형 공통 모드 필터는 전극층을 사이에 두고 대칭되도록 구성된 제1 커패시턴스층 및 제2 커패시턴스층을 포함하고, 제1 커패시턴스층 및 제2 커패시턴스층은 접지 패턴 및 커패시터 패턴이 교대로 적층된 구조로 형성되고, 코일 패턴들이 형성하는 폴과 함께 커패시턴스층과 코일 패턴에 의한 추가 폴이 형성되어 광대역 특성을 구현한다.

Harmonics suppression filter

A harmonics suppression filter is set in a base board to suppress harmonics of signals. The harmonics suppression filter includes a main circuit, a first inner circuit, a first outer circuit, a first inner node and a first outer node. A first end of the main circuit couples to a first signal terminal. A second end of the main circuit couples to a second signal terminal. The first inner circuit, the first outer circuit and the main circuit are in the same layer of the base board. Meanwhile, the first inner circuit is located on an inner sidewall of the main circuit. There is an inner gap between the first inner circuit and the main circuit. The first outer circuit is located on an outer sidewall of the main circuit. There is an outer gap between the first outer circuit and the main circuit. The first inner node is set in the inner gap to couple the first inner circuit with the main circuit. The first outer node is set in the outer gap to couple the first outer circuit with the main circuit ...

Filter structures and methods of forming same and method of filtering signal

HIGH-FREQUENCY TRANSFORMER, HIGH-FREQUENCY COMPONENT AND COMMUNICATION TERMINAL DEVICE

A first inductor and a second inductor are constituted from conductor patterns formed over a plurality of layers; conductor patterns (L1a,L1b,L1c,L1d) of the first inductor and conductor patterns (L2a,L2b,L2c) of the second inductor have respective coil-winding axes oriented in the layering direction and respective coil apertures disposed so as to be divided into two locations (coil apertures) of a first coil aperture (CA1) and a second coil aperture (CA2); the conductor patterns of the first inductor and the conductor patterns of the second inductor are respectively linked while alternating between the two locations of the first coil aperture (CA1) and the second coil aperture (CA2); and, in a state where a current is passed between a first input/output port (P1) and a third input/output port (P3), a magnetic flux generated in the first coil aperture by the first inductor and the second inductor forms a closed loop.

HIGH Q, MINIATURIZED LCP-BASED PASSIVE COMPONENTS

Various methods and systems are provided for high Q, miniaturized LCP-based passive components. In one embodiment, among others, a spiral inductor includes a center connection and a plurality of inductors formed on a liquid crystal polymer (LCP) layer, the plurality of inductors concentrically spiraling out from the center connection. In another embodiment, a vertically intertwined inductor includes first and second inductors including a first section disposed on a side of the LCP layer forming a fraction of a turn and a second section disposed on another side of the LCP layer. At least a portion of the first section of the first inductor is substantially aligned with at least a portion of the second section of the second inductor and at least a portion of the first section of the second inductor is substantially aligned with at least a portion of the second section of the first inductor.

HYBRID TRANSFORMER BASED INTEGRATED DUPLEXER FOR MULTI-BAND/MULTI-MODE RADIO FREQUENCY (RF) FRONT END

An integrated duplexer based on electrical balance is described. The duplexer module includes a hybrid transformer. The hybrid transformer includes a primary coil and a secondary coil. The primary coil is coupled between an output of a power amplifier and an antenna. The secondary coil is coupled between an input of a low noise amplifier and ground. The duplexer also includes a balancing impedance that is coupled between the primary coil and the secondary coil.

DEVICE FOR LINKING AN ELECTRICAL MEMBER TO A COMMUNICATION LINE

A connection device for connecting an electrical member to a communications line comprising at least two conductors for carrying differential signals. The connection device includes at least one data exchange interface component connected to the line to send and/or receive data, and a connection for connecting the electrical member to the line. The connection device also includes in succession, going from the connection to the interface components, at least a first transformer arranged to perform common mode filtering on each conductor of the communications line; a second transformer arranged to perform electrical isolation so as to isolate the communications line at least from the interface component; a third transformer connected in parallel with the second transformer and made up of two windings having terminals including terminals that are not connected to the second transformer and that are connected to frame ground of the electrical member; and a fourth transformer arranged to provide ...

Multilayered LC filter

A multi-layered LC filter includes a plurality of insulating sheets stacked on each other and inductor via holes that are connected to each other in a stacking direction of insulating sheets, forming two columnar inductors. First ends of the inductors are connected to external ground electrodes via internal ground patterns, respectively. The external ground electrodes are electrically connected via a bridge pattern disposed in proximity to the inductors, allowing adjustment of the value of the magnetic coupling between LC resonators without changing the size of the filter.

Buried self-resonant bypass capacitors within multilayered low temperature co-fired ceramic (LTCC) substrate

A multilayered, low temperature co-fired ceramic (LTCC) substrate within which one or more capacitors are formed (e.g., for power supply decoupling). Self-resonance is introduced by the capacitance of each capacitor interacting with an inductance formed by the interconnects (e.g., conductive vias and other conductive interconnects among the electrode patterns), which couple such capacitor to its respective circuit electrode and interface electrode (e.g., ground reference).

Systems and methods for providing an electric choke

Systems and methods for an electric choke are provided. The choke may be provided as part of a power transmission arrangement that includes a cable for electrically coupling a power source and a powered device having a ground node and a wire separate from the cable providing a path for a common-mode current through the ground node. The power transmission arrangement also includes an unbalanced choke coupled between the power source and the powered device, wherein a number of turns of the cable in the choke is different than a number of turns of the wire in the choke.

Method of adjusting the resonance frequency of an L-C resonant circuit and resonant circuit

An L-C resonant circuit with an adjustable resonance frequency, having a capacitor and a first inductor electrically coupled together and a second inductor magnetically coupled to the first inductor. Additionally, there is a control circuit to sense a signal representing a first current flowing through the first inductor and to force through the second inductor a second current that is a replica of the first current for setting the adjustable resonance frequency of the L-C resonant circuit.

Surge absorber

A surge absorber has a first terminal electrode, a second terminal electrode, a third terminal electrode, an inductor portion, a surge absorbing portion, and a resistor portion. The inductor portion has a first internal conductor and a second internal conductor mutually coupled in a polarity-reversed relation. One end of the first internal conductor is connected to the first terminal electrode. One end of the second internal conductor is connected to the second terminal electrode. The other end of the first internal conductor is connected to the other end of the second internal conductor. The surge absorbing portion has a first internal electrode and a second internal electrode. The first internal electrode is connected to the other end of the first internal conductor and to the other end of the second internal conductor. The second internal electrode is connected to the third terminal electrode. The resistor portion has a DC resistance component connected between the first terminal electrode ...

Electrical filter

An electrical filter has at least four terminals, two inductances and two capacitors. The first inductance is connected between the first terminal and the second terminal, and a second inductance is connected between the third terminal and the fourth terminal. The first capacitance is connected between the first terminal and a reference potential, and the second capacitance is connected between the third terminal and the reference potential. The first inductance and the second inductance form a transformer having a coupling coefficient of a magnitude such that the filter acts as a low-pass filter for differential signals and common mode signals, a cutoff frequency for differential signals being higher than a cutoff frequency for common mode signals.

Power conversion apparatus and air conditioner including the same

A power conversion apparatus capable of improving an EMI characteristic and an air conditioner including the same are disclosed. The power conversion apparatus includes an inverter including a plurality of switching elements corresponding to three phases, a gate driver configured to drive the switching elements of the inverter, and a noise reducer connected to the gate driver and configured to set switching noise occurrence times caused by the switching elements in the respective phases to be different.

Noise Suppression Circuit

The present invention realizes a noise suppression circuit capable of suppressing noise in a wide frequency range even if impedance fluctuates on the input side or the output side. A noise suppression circuit has first and second inductors (L 1, L 2 ) inserted in series in a first conductive line ( 3 ), and a series circuit ( 15 ) configured to have a third inductor (L 3 ) and a first capacitor (C 1 ) connected in series. The third inductor (L 3 ) side is connected between the first and second inductors (L 1, L 2 ). The noise suppression circuit further includes a second capacitor (C 2 ) whose one end is connected to the first conductive line ( 3 ) on the first inductor (L 1 ) side and whose other end is connected between the third inductor and the first capacitor in the series circuit ( 15 ).

Coil block and electronic device using the same

A coil block and an electronic device using the same are provided. The coil block includes a first coil, a second coil, a core having an intermediate layer for separating the first coil and the second coil from each other, and a shield for shielding the first coil, the second coil, and the intermediate layer, wherein the first coil and the second coil have the same winding direction. According to the coil block and the electronic device, the filtering can be performed without any inductance offset even if the PWM signal having the inversed phase or the same phase is inputted. Also, since two windings can be wound on to one core using a common coil, the cost and the size of the coil block can be reduced.

Меthоd оf аdjusting thе rеsоnаnсе frеquеnсу оf аn L-С rеsоnаnt сirсuit аnd rеsоnаnt сirсuit

Аn L-С rеsоnаnt сirсuit with аn аdjustаblе rеsоnаnсе frеquеnсу, hаving а саpасitоr аnd а first induсtоr еlесtriсаllу соuplеd tоgеthеr аnd а sесоnd induсtоr mаgnеtiсаllу соuplеd tо thе first induсtоr. Аdditiоnаllу, thеrе is а соntrоl сirсuit tо sеnsе а signаl rеprеsеnting а first сurrеnt flоwing thrоugh thе first induсtоr аnd tо fоrсе thrоugh thе sесоnd induсtоr а sесоnd сurrеnt thаt is а rеpliса оf thе first сurrеnt fоr sеtting thе аdjustаblе rеsоnаnсе frеquеnсу оf thе L-С rеsоnаnt сirсuit.

Меthоd оf аdjusting thе rеsоnаnсе frеquеnсу оf аn L-С rеsоnаnt сirсuit аnd rеsоnаnt сirсuit

Аn L-С rеsоnаnt сirсuit with аn аdjustаblе rеsоnаnсе frеquеnсу, hаving а саpасitоr аnd а first induсtоr еlесtriсаllу соuplеd tоgеthеr аnd а sесоnd induсtоr mаgnеtiсаllу соuplеd tо thе first induсtоr. Аdditiоnаllу, thеrе is а соntrоl сirсuit tо sеnsе а signаl rеprеsеnting а first сurrеnt flоwing thrоugh thе first induсtоr аnd tо fоrсе thrоugh thе sесоnd induсtоr а sесоnd сurrеnt thаt is а rеpliса оf thе first сurrеnt fоr sеtting thе аdjustаblе rеsоnаnсе frеquеnсу оf thе L-С rеsоnаnt сirсuit.

Quadripole

A four-terminal network, especially for filtering frequency bands or values, behaves as an ideal winding, therefore ensures high selectivity and, if equipped with an iron core, the possibility of carrying out switch operations. The network includes a pair of closely adjacent inductor coils having parallel turns for current in opposite directions, and equal inductance with a capacitor connected to at least one end of one of the coils.

Radio receiver

電子部品

NOISE SUPPRESSION CIRCUIT

PROBLEM TO BE SOLVED: To realize a noise suppression circuit which suppresses a noise over a wide frequency band and can be made small-sized. SOLUTION: The noise suppression circuit comprises: a winding 11a inserted in the midway of a conductive line 3 at a first position P11; a winding 11b coupled to the winding 11a; an injecting signal transmission path 19; and an inductance element 13. One end of the injecting signal transmission path 19 is connected to the conductive line 3 at a second position P12. The other end is connected to a conductive line 4. The winding 11b is inserted in the midway of the injecting signal transmission path 19. The injecting signal transmission path 19 transmits an injecting signal generated based on a signal corresponding to the noise detected from the conductive line 3 and injected in the conductive line 3 to suppress the noise. The inductance element 13 is inserted in the conductive line 3 at a position between the position P11 and the position P12. The number ...

ФИЛЬТР ГАРМОНИК КОРОТКОВОЛНОВОГО ПЕРЕДАТЧИКА

Изобретение относится к области радиотехники и может быть использовано в фильтрах гармоник усилителей мощности широкодиапазонных радиопередатчиков. Достигаемый технический результат - обеспечение согласования фильтра гармоник по входу во всем рабочем диапазоне частот радиопередатчика и на частотах гармонических составляющих передаваемого сигнала. Фильтр гармоник коротковолнового передатчика содержит N частотно-разделительных устройств, где N - число частотных поддиапазонов, каждое из которых состоит из фильтра нижних частот и фильтра верхних частот, и балластного сопротивления, при этом вход каждого частотно-разделительного устройства подключается к входу фильтра гармоник через входной трехконтактный переключатель, при этом в каждом частотно-разделительном устройстве фильтр нижних частот содержит две катушки индуктивности и два конденсатора, фильтр верхних частот содержит два конденсатора и две катушки индуктивности. 1 ил.

ДИНАМИЧЕСКИЙ ФИЛЬТР ПОДАВЛЕНИЯ ГАРМОНИК ДЛЯ ЭНЕРГОСИСТЕМЫ ПЕРЕМЕННОГО ТОКА

Изобретение относится к динамическому фильтру подавления гармоник (ФПГ), предназначенному для энергосистемы переменного тока. ФПГ содержит, по меньшей мере, один источник напряжения (V) и, по меньшей мере, одну нагрузку. ФПГ содержит трансформатор (T1) для восприятия тока (ТВТ) или ввода напряжения (ТВН), последовательно соединенный с источником напряжения и нагрузкой, причем один конец первичной обмотки (P1) ТВТ или ТВН соединен с источником напряжения, а другой конец первичной обмотки ТВТ или ТВН соединен с нагрузкой; трансформатор (T2) для ввода тока или восприятия напряжения, параллельно соединенный с источником напряжения, причем один конец первичной обмотки (Р2) этого ТВТ или ТВН соединен с общей точкой связи между источником напряжения и первичной обмоткой ТВТ или ТВН, а другой конец первичной обмотки ТВТ или ТВН заземлен. Коэффициент трансформации между двумя трансформаторами равен единице. Предложенный фильтр также содержит параллельный резонансный LC-контур (L1C1), настроенный ...

Двухполосный LC-фильтр

Изобретение относится к области радиотехники и может быть использовано для селекции частот различных колебаний в измерительной и специальной радиоаппаратуре, работающей вплоть до СВЧ диапазона. В частности, в радиоприемниках оно может быть основой диплексеров, разделяющих по частоте рабочие полосы сигналов. Сущность: фильтр содержит резонатор, образованный последовательно подключенными емкостным 49 и индуктивным 50 элементами, первый и второй параллельные контуры на элементах, один из них выполнен на емкостном 52 и индуктивном 51 элементах, а второй - на емкостном 53 и индуктивном 54 элементах. Первый контур вместе с индуктивными элементами 55 и 56 образует фильтр верхних частот. Второй контур вместе с емкостными элементами 57 и 58 образует фильтр нижних частот. Для связи устройства с нагрузками на входе и выходе используются емкостные элементы 59 и 60. Параметры элементов удовлетворяют определенным соотношениям. Технический результат: упрощение реализации селективных свойств двухполосных ...

Фильтр гармоник коротковолнового передатчика

Изобретение относится к области радиотехники и может быть использовано в фильтрах гармоник усилителей мощности широкодиапазонных радиопередатчиков. Технический результат заключается в упрощении фильтра гармоник, уменьшении его габаритных размеров и массы при одновременном уменьшении тока, протекающего через элементы устройства. Фильтр гармоник коротковолнового передатчика содержит коммутируемые при помощи входных и выходных трехконтактных переключателей N первых и N вторых катушек индуктивности, соединенных попарно последовательно и связанных друг с другом индуктивной связью, причем магнитные потоки индуктивно связанных катушек индуктивности направлены навстречу друг другу, и конденсатор переменной емкости выполненный в виде набора конденсаторов, переключаемых при помощи устройства управления. 3 з.п. ф-лы, 4 ил.

М КАНАЛЬНОЕ ЧАСТОТНО-СЕЛЕКТИВНОЕ УСТРОЙСТВО

Изобретение относится к радиосвязи и может быть использовано в радиоприемных устройствах декаметрового диапазона волн. Технический результат заключается в повышении крутизны амплитудно-частотной характеристики в переходных областях. Согласно изобретению содержится последовательный контур, образованный катушкой индуктивности и конденсатором переменной емкости, выполняющий роль перестраиваемого режекторного контура для подавления узкополосной помехи; многозвенный полосовой фильтр имеет два полюса затухания, расположенные ниже и выше полосы пропускания, что приводит к повышению крутизны амплитудно-частотной характеристики в переходных областях. Устройство может быть выполнено как с разрывом между соседними полосами пропуска, так и с примыкающими полосами. 3 ил..

ФИЛЬТР ПОМЕХОПОДАВЛЯЮЩИЙ ДЛЯ ЦЕПЕЙ ПОСТОЯННОГО ТОКА В МОДУЛЬНОМ ИСПОЛНЕНИИ

Техническое решение относится к области электротехники и радиотехники и может быть использовано в качестве помехоподавляющих фильтров электромагнитных помех, устанавливаемых в цепи электропитания постоянного тока (DC) для снижения электромагнитных помех, побочных электромагнитных излучений и наводок (ПЭМИН) и улучшения электромагнитной совместимости (ЭМС) источников электропитания и преобразователей электроэнергии типа AC/DC, DC/DC. Фильтр помехоподавляющий для цепей постоянного тока в модульном исполнении, состоящий, по крайней мере, из трех индуктивных звеньев элементов фильтрации, включающих в себя помехоподавляющие индуктивно связанные синфазные дроссели фильтров с двухпроводной структурой, индуктивностей, конденсаторов. Помехоподавляющий фильтр для цепей постоянного тока в модульном исполнении содержит двойной экранирующий корпус, дроссели синфазных фильтров, выполненные на тороидальных магнитопроводах из аморфных и нанокристаллических сплавов в виде тонких лент, витой ленточный магнитопровод помещен в жесткий защищенный контейнер, имеющий скругленные кромки, поверх которого намотаны обмотки медным изолированным проводом. Техническим результатом, обеспечиваемым приведенной совокупностью признаков, является расширение полосы подавления электромагнитных помех и ПЭМИН, увеличение значения вносимого затухания в полосе подавления фильтра. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 203 417 U1 (51) МПК H03H 7/09 (2006.01) H05K 9/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H03H 7/09 (2021.02); H05K 9/00 (2021.02) (21)(22) Заявка: 2020138736, 26.11.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Лепеха Юрий Пантелеевич (RU) Дата регистрации: 05.04.2021 Приоритет(ы): (22) Дата подачи заявки: 26.11.2020 (45) Опубликовано: 05.04.2021 Бюл. № 10 2 0 3 4 1 7 R U (54) ФИЛЬТР ПОМЕХОПОДАВЛЯЮЩИЙ ДЛЯ ЦЕПЕЙ ПОСТОЯННОГО ТОКА В МОДУЛЬНОМ ИСПОЛНЕНИИ (57) Реферат: Техническое ...

ИНТЕГРАЛЬНЫЙ ПОЛОСОВОЙ LC-ФИЛЬТР

Предлагаемая полезная модель относится к радиоэлектронике и может быть использована для селекции в СВЧ-трактах.Задача полезной модели - уменьшение площади многозвенного полосового интегрального LC-фильтра.Поставленная задача решается тем, что в плату многослойную полосового LC-фильтра, выполненную в n диэлектрических слоях и состоящей из печатных проводников, образующих k параллельных LC-контуров и (k-1) последовательных печатных катушек индуктивности, двух подключенных к общей шине экранов, находящихся на верхнем и нижнем слоях, и контактных площадок на верхнем или нижнем слое, дополнительно вводится m подключенных к общей шине экранов, располагающихся на внутренних слоях и представляющих собой сплошные полигоны металлизации, необходимые для экранизации друг от друга разных частей фильтра, что позволяет расположить части фильтра друг над другом между экранами, соединить их между собой переходными отверстиями, проходящими через выборки металлизации в экранах, и уменьшить площадь полосового ...

ФИЛЬТР ЗАЩИТЫ ОПАСНЫХ ЦЕПЕЙ РАКЕТЫ

Фильтр защиты опасных цепей ракеты, содержащий входной разъем, на хвостовой части которого установлена первая печатная плата, с расположенными на ней двумя безвыводными резисторами, выходной разъем и металлический корпус, в котором расположены вторая и третья печатные платы, экранирующая поверхность, четыре токопроводящих элемента и восемь конденсаторов, при этом экранирующая поверхность выполнена в виде диска, на противоположных сторонах которого расположены вторая и третья печатные платы с четырьмя безвыводными конденсаторами на каждой, при этом токопроводящие элементы выполнены в виде стержней, проходящих через отверстия в печатных платах и экранирующем диске без электрического контакта между диском и стержнями, причем первый контакт входного разъема соединен с первым выводом первого резистора, второй вывод первого резистора и первый вывод первого конденсатора соединены с первым концом первого токопроводящего элемента, второй вывод первого конденсатора соединен с экранирующим диском и заземлен, второй контакт входного разъема соединен с первым выводом второго резистора, второй вывод второго резистора и первый вывод второго конденсатора соединены с первым концом второго токопроводящего элемента, второй вывод второго конденсатора соединен с экранирующим диском и заземлен, третий контакт входного разъема и первый вывод третьего конденсатора соединены с первым концом третьего токопроводящего элемента, второй вывод третьего конденсатора соединен с экранирующим диском и заземлен, четвертый контакт входного разъема и первый вывод четвертого конденсатора соединены с первым концом четвертого РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК H03H 7/09 (13) 166 982 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2016117297/07, 04.05.2016 (24) Дата начала отсчета срока действия патента: 04.05.2016 (73) Патентообладатель(и): Акционерное общество "Корпорация "Тактическое ракетное вооружение" (RU ...

Устройство фильтрации гармоник

Полезная модель относится к радиотехнике и может быть использована в радиосвязи, в частности в усилителях мощности широкодиапазонных радиопередающих устройств. Технический результат - расширение диапазона рабочих частот за счет трансформации входного сопротивления фильтра гармоник, что согласно формуле Фано расширяет возможности широкополосного согласования. Для этого в устройство, содержащее полосовую согласующую цепь (1) и фильтр гармоник (3), выход которого является выходом устройства, а вход полосовой согласующей цепи (1) - входом устройства, между выходом полосовой согласующей цепи (1) и входом фильтра гармоник (3) включен широкополосный высокочастотный трансформатор (2), выполненный на ферритовых сердечниках отрезками линии передачи. 2 ил.

Filter unit i.e. intermediate circuit capacitor, for e.g. frequency converter for passenger car, has magnetically soft material comprising magnetically soft particles, or magnetically soft particles bound in plastic

The filter unit (1) has a capacitor (10) including a terminal connected with an electrical inductor element (12). The inductor element is in magnetic contact with a magnetically soft material. The inductor element produces inductance for forming an electromagnetic compatibility filter. The material comprises magnetically soft particles, or magnetically soft particles bound in plastic. Another electrical inductor element is connected with another terminal of the capacitor. The latter inductor element is in magnetic contact with the material.

AC LINE FILTER

BAND PASS FILTER

Coupling arrangements for coaxial cables

British Standards BS6513, Part 4, Section 3 requires isolation of subscriber equipment from a T.V. cable network at mains frequency and voltages. The coupling arrangement described provides a wideband (5-450 MHz) coupling using a transformer T between cable sections. Additional isolation at mains frequency is provided by capacitors C2, C3 in series with one transformer winding. The transformer T and isolating capacitors C2, C3 are connected in a screening enclosure 46, 48 which includes series capacitance elements C1a, C1b, that isolate the cable screens at mains frequency but allow return current to flow without significant radiation at the high end of the frequency range where leakage capacitance coupling through the transformer T is not negligible. In a modification, a ferrite bead (54, Figure 3) is mounted over one cable section, the series capacitive element being completed on the transformer side of the bead, and a further capacitive element being connected between the screen enclosure ...

Electrostatic protection device

Aspects of the invention provide for an electrostatic protection device for protecting an input port of an electronic circuit. The electrostatic protection device includes a stacked coil assembly with four ports. The electrostatic protection device further includes a human body model ESD protection circuit, a charge device model ESD protection circuit, and an impedance matching circuit. The human body model ESD protection circuit, the charge device model ESD protection circuit, and the impedance matching circuit are connected to separate ports selected from the four ports.

LOW-PASS FILTER ALSO EXCLUDING LIABILITIES ELEMENTS FOR THE UNCOUPLING OF THE XDSL ÜBERTRANGUNGSKANÄLE

LOW-PASS FILTER FOR THE FILTERING OF ADSL SIGNALS ON TELEPHONE LINES

ELECTRICAL HIGH FREQUENCY TRANSDUCER.

Noise suppression device and air conditioner

OF THE INVENTION In a conventional noise suppression device comprised of a common mode coil, it 5 is necessary to increase the number of turns on the common mode coil or to increase the size of the common mode coil to obtain a sufficient amount of inductance required for noise suppression as the level of generated noise increases. A magnetic body 23 formed in a ring shape forming a hollow part 24 therein, power signal lines 7a and 7b wound around the magnetic body 23 through the hollow part 24, and a ground line 15 passing 10 through the hollow part 24 of the magnetic body 23 are provided for suppressing a noise current 18 and a noise current 19. ec ...

NARROW BAND-PASS TUNED RESONATOR FILTER TOPOLOGIES HAVING HIGH SELECTIVITY, LOW INSERTION LOSS AND IMPROVED OUT-OF BAND REJECTION OVER EXTENDED FREQUENCY RANGES

... ▓▓▓A tuned resonator circuit topology is disclosed that permits implementation of ▓narrow band-pass filters having high loaded Q and optimal coupling (for low ▓insertion loss) using a parallel tuned resonator topology at freqencies in the ▓1 to 2 GHz range and beyond. The topology consists of a mirror image of the ▓parallel tuned circuit about the signal line of a conventional parallel tuned ▓circuit to effect a cancellation of virtually all of the induced currents ▓between the inductive elements of the resonators. This reduction in induced ▓currents reduces the magnetic coupling between the resonators, thereby ▓offsetting the increase in overall coupling between the resonators as ▓frequency increases, and thereby serves to maintain optimal coupling between ▓the resonators as the frequency of operation increases. Moreover, the mirror ▓image topology increases the parallelism between the inductive elements in the ▓resonators, thereby decreasing the inductance values and permitting an ▓increase ...

INTEGRATED MULTI-STAGE ELECTRICAL FILTER

1-[(DIARYLMETHOXY)ALKYL]PYRROLIDINES AND PIPERIDINES; PROCESS FOR PREPARING THE SAME AND DRUGS CONTAINING THEM

La présente invention concerne des ¢(diarylméthoxy) alcoyl!-1 pyrrolidines et pipéridines représentées par la formule: dans laquelle X est l'hydrogène ou un atome de fluor, Alk est un groupe alcoyle linéaire ou ramifié contenant 2 ou 3 atomes de carbone; R1 et R2 sont l'hydrogène ou un radical alcoxy linéaire ou ramifié comprenant de 1 à 4 atomes de carbone; n est 4 ou 5. L'invention concerne aussi un procédé de préparation de ces pyridines ainsi que l'application de ces composés comme médicaments cardiovasculaires.

TV SIGNAL DISTRIBUTION FILTER HAVING PLANAR INDUCTORS

TV signal distribution filter device comprising at least one tuneable band-pass filter circuit, each tuneable filter circuit having a signal input (1) for receiving a TV signal, a signal output (17) for delivering a filtered TV signal, and a plurality of components connected in a predetermined configuration between the signal input and the signal output and together being provided for filtering the received TV signal to the filtered TV signal, said plurality of components comprising at least a first inductor (8) and a second inductor (10), each accompanied by a tuneable capacitive component (5, 11) and connected to a voltage node (2, 18) which is provided for receiving a tuning voltage for tuning the tuneable capacitive component and thereby setting a filtering parameter of the tuneable filter circuit, the first and second inductors being planar inductors which are mechanically fixed and embedded in a dielectric environment (19; 20; 21) and are electro-magnetically coupled with each other ...

VARIABLE FILTER

An advantageous embodiment of the invention is the filter of the receiver branchof the duplex filter in a multi-channel radio transmitter/receiver having reception and transmission bands composed of plural radio-frequency channels. In the first state of the filter, when the radio transmitter/receiver is only receiving radio signals, the width of the pass band of the filter corresponds to said reception band. In the second state, in which the radio transmitter/receiver additionally transmits radio signals, the pass band of the filter is switched by current control to cover only part of the reception band. By constructing the filter in the manner proposed it is possible to use current control in the first resonator in the filter of the receiver branch. Because of its power consumption current control is otherwise unsuitablefor use in e.g. the duplex filter of a portable radio-telephone.

Common-mode filter with coupled inductors

A common-mode filter including, in series between a first input terminal and a first output terminal, a first and a second positively coupled inductive elements; in series between a second input terminal and a second output terminal, a third and a fourth positively coupled inductive elements; and in series between each midpoint of said series connections of inductive elements and the ground, a capacitive element and a fifth inductive element.

Duplexer, circuit structure thereof and RF transceiver apparatus

The invention provides a duplexer, a circuit structure thereof and an RF transceiver apparatus. The duplexer includes a first, a second and a third signal ports; a first filter and a second filter. The first filter has first, second, and third resonant circuits that have first, second and third inductors, respectively. The first, second and third inductors are mutually inductive. The first and third resonant circuits are electrically connected to the first and second signal ports, respectively. The second filter has fourth, fifth and sixth resonant circuits that have fourth, fifth and sixth inductors, respectively. The fourth resonant circuit is connected in series with the first resonant circuit. The fifth inductor and the fourth inductor are mutually inductive. The sixth resonant circuit is electrically connected to the third signal port. The second filter further has a main capacitor connected in series with the fifth and sixth resonant circuits respectively and located therebetween.

Wave filter

FILTER PASSES LOW HAS COMPONENT ONLY PASSIVE INTENDS FOR DECOUPLING DESVOIES XDSL

DEVICE FOR CONNECTING AN ELECTRICAL ELEMENT TO A COMMUNICATION LINE

Dispositif de raccordement d'un organe électrique 3 à une ligne de communication 4 comprenant au moins deux conducteurs pour porter des signaux différentiels, le dispositif de raccordement comportant au moins un composant d'interface échangeur de données 8, 12 relié à la ligne pour émettre et/ou recevoir des données et un moyen de liaison 9 de l'organe électrique à la ligne, le dispositif de raccordement comportant en outre successivement, depuis le moyen de liaison jusqu'au composant d'interface, au moins : - un premier transformateur TA agencé pour réaliser un filtrage en mode commun sur chaque conducteur de la ligne de communication ; - un second transformateur TB agencé pour réaliser une isolation galvanique de manière à isoler de la ligne de communication au moins le composant d'interface ; - un troisième transformateur TC monté en parallèle du deuxième transformateur et formé de deux enroulements munis de bornes parmi lesquelles des bornes non connectées au deuxième transformateur ...

Single-to-balanced Band Pass Filter

By having stages of a single-to-balanced band pass filter, except for a stage which receives a single-terminal signal, to not be coupled to ground, noises cannot have an available path to enter the single-to-balanced band pass filter so that common-mode signals may be reduced in magnitude.

Tv signal distribution filter having planar inductors

TV signal distribution filter device which includes at least one tuneable band-pass filter circuit, each tuneable filter circuit having a signal input for receiving a TV signal, a signal output for delivering a filtered TV signal, and a plurality of components connected in a predetermined configuration between the signal input and the signal output and together being provided for filtering the received TV signal to the filtered TV signal, said plurality of components including at least a first inductor and a second inductor, each accompanied by a tuneable capacitive component and connected to a voltage node which is provided for receiving a tuning voltage for tuning the tuneable capacitive component and thereby setting a filtering parameter of the tuneable filter circuit, the first and second inductors being planar inductors which are mechanically fixed and embedded in a dielectric environment and are electro-magnetically coupled with each other.

Devices and bandpass filters therein having at least three transmission zeroes

A bandpass filter comprises a first capacitor, a second capacitor, a third capacitor and at least two resonators. The first and second capacitors are coupled in parallel with each other, and each of the first and second capacitors includes an input. The third capacitor is coupled between the first capacitor and the second capacitor at their respective inputs. The at least two resonators are coupled in parallel with the first capacitor and the second capacitor and are positioned adjacent to each other at a distance such that the at least one component of the resonators are electromagnetically coupled together to provide three (3) transmission zeros.

Multilayer resonator and multilayer filter

A multilayer filter includes a plurality of mutually coupled resonant circuits provided within a multilayer body. Capacitor internal electrodes, inductor internal electrodes, and inductor via electrodes, ground via electrodes, and input-output via electrodes are arranged within the multilayer body. The ground via electrodes and the input-output via electrodes are provided on a dielectric layer on a mounting surface, or a second dielectric layer on a first dielectric layer provided on the mounting surface. The capacitor internal electrodes arranged towards the side of the mounting surface do not overlap the input-output electrodes when viewed in plan view. With this configuration, degradation in frequency characteristics of a resonant circuit is effectively prevented by controlling one of an inductive component and a capacitive component of the resonant circuit.

Laminated bandpass filter

A BPF comprises a first resonator and a second resonator connected in order between input/output terminals. The resonators each include an inductor conductor and a capacitor conductor formed in a laminate. The inductor conductors of both resonators have one open end and the other short-circuited end. The BPF further comprises a connection conductor for interconnecting the inductor conductors of the two resonators. This connection conductor connects the inductor conductor of the first resonator at a position close to the open end with the inductor conductor of the second resonator at a position close to the open end.

Common mode filter with multi spiral layer structure and method of manufacturing the same

A common mode filter with a multi spiral layer structure includes a first coil, a second coil, a third coil connected in series with the first coil, a fourth coil connected in series with the second coil, a first material layer and a second material layer. The second coil is disposed between the first and third coils, and the third coil is disposed between the second and fourth coils. At least one of the first and second material layers comprises magnetic material. The first, second, third, and fourth coils are disposed between the first and second material layers.

Mutually coupled matching network

An impedance matching circuit is disclosed. The impedance matching circuit includes two or more mutually coupled inductors. A total self inductance of the impedance matching circuit is less than a corresponding impedance matching circuit that includes inductors that are not mutually coupled. The two or more mutually coupled inductors may have known current ratios that match current ratios in the corresponding impedance matching circuit.

Multilayer band pass filter

In a multilayer band pass filter, via-electrodes and strip electrodes define inductors of LC parallel resonators in four stages. A capacitor electrode and a ground electrode define a capacitor of a first-stage LC parallel resonator. A capacitor electrode and the ground electrode define a capacitor of a fourth-stage LC parallel resonator. Capacitor electrodes define a second-stage LC parallel resonator. Capacitor electrodes define a third-stage LC parallel resonator. Among four or more of the LC parallel resonators, the coupling between certain LC parallel resonators is easily defined, and the attenuation characteristic of a filter is definable with a high degree of freedom.

Filter

In a filter, a plurality of coils include a plurality of line conductor layers that are each provided on an insulator layer, a plurality of via hole conductors that extend from one end of the line conductor layers in the y-axis direction to the negative direction side of the z-axis direction, and are electrically connected to a plurality of capacitor conductor layers, and a plurality of via hole conductors that extend from the other end of the line conductor layers in the y-axis direction to the negative direction side of the z-axis direction, and are electrically connected to a ground conductor layer. The distance between the via hole conductor layers connected to the ground conductor layer differs from the distance between the via hole conductor layers connected to the capacitor conductor layers.

WILKINSON POWER COMBINER, COMMUNICATON UNIT AND METHOD THEREFOR

A Wilkinson power combiner () is described that includes: at least one input port () coupled to at least one output port () by at least two power combining stages. A first power combining stage () of the at least two power combining stages is configured as a single-stage first frequency pass circuit and a second power combining stage () of the at least two stages is configured as a single-stage second frequency pass circuit, and wherein the first frequency is different to the second frequency. 1. A Wilkinson power combiner comprising:at least one input port coupled to at least one output port by at least two power combining stages;wherein a first power combining stage of the at least two power combining stages is configured as a single-stage first frequency pass circuit and a second power combining stage of the at least two stages is configured as a single-stage second frequency pass circuit, andwherein the first frequency is different to the second frequency.2. The Wilkinson power combiner of wherein one of the single-stage first frequency pass circuit and single-stage second frequency pass circuit is configured as a high-pass claim 1 , HP claim 1 , frequency circuit.3. The Wilkinson power combiner of wherein the HP frequency circuit comprises the at least one input port coupled to the at least two power combining stages via respective series capacitances and coupled to ground via an input shunt inductor.4. The Wilkinson power combiner of wherein the shunt inductor iks configured to function as both: (i) part of the single-stage first frequency pass circuit that sets the first frequency; and (ii) to provide electrostatic discharge claim 3 , ESD claim 3 , protection of the Wilkinson power combiner.5. The Wilkinson power combiner of wherein the HP frequency circuit comprises a series resistor—inductor claim 2 , R-L isolation circuit between two intermediate input-output ports coupled between the at least one input port and the at least one output port.6. The ...

INDUCTIVE ELEMENT AND LC FILTER

The present disclosure provides an inductive element capable of lowering a Q-value. An inductive element includes a first cover and a second cover covering an annular core, and a first winding and a second winding wound around a region of the core, the first cover and the second cover. The first cover covers a part of an inner circumferential surface of the core, a part of an outer circumferential surface and an end surface on one end side in an axial direction. The second cover covers a part of the inner circumferential surface of the core, a part of the outer circumferential surface an end surface on the other end side in the axial direction. 1. An inductive element comprising:an annular core;a first cover and a second cover covering the core; anda first winding and a second winding wound around a region of the core and the first and second covers, whereinwhen a direction in which an axis which is surrounded by the annular core extends is defined as an axial direction,the core includes an inner circumferential surface, an outer circumferential surface, an end surface on one end side in the axial direction, and an end surface on the other end side,the first cover covers a part of the inner circumferential surface of the core, a part of the outer circumferential surface thereof, and the end surface on the one end side of the core, and includes an inner end surface extending over the inner circumferential surface of the core and an outer end surface extending over the outer circumferential surface thereof,the second cover covers a part of the inner circumferential surface of the core, a part of the outer circumferential surface thereof, and the end surface on the other end side thereof, and includes an inner end surface extending over the inner circumferential surface of the core and an outer end surface extending over the outer circumferential surface thereof,the inner end surfaces of the first and second covers are spaced apart from each other, andthe outer end ...

ELECTRIC MOTOR SYSTEM AND HIGH-FREQUENCY HARMONIC SUPPRESSING DEVICE OF THE SAME

The electric motor system of the present invention includes an electric motor and a driving device. The electric motor includes a grounded housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection. The driving device is connected with the multi-phase stator windings and includes a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit. The voltage stabilizing capacitor is connected with an output end of the rectifying circuit to provide a direct-current power source to a direct-current power source circuit. The high-frequency driving circuit is connected with the direct-current power source circuit and the multi-phase stator windings, and generates multi-phase driving signals to drive the multi-phase stator windings. A high-frequency harmonic suppressing device is connected with the neutral point and the direct-current power source circuit. 1. An electric motor system comprising:an electric motor comprising a housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection, the housing being grounded through a grounding wire;a driving device connected with the multi-phase stator windings and comprising a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit, the voltage stabilizing capacitor being connected with an output end of the rectifying circuit and adapted to provide a direct-current power source to a direct-current power source circuit, the high-frequency driving circuit being connected with the direct-current power source circuit and the multi-phase stator windings and generating multi-phase driving signals to drive the multi-phase stator windings; anda high-frequency harmonic suppressing device connected with the neutral point and the direct-current power source circuit.2. The electric motor system as claimed in claim 1 , wherein the high-frequency harmonic ...

BAND PASS FILTER AND LAMINATE BAND PASS FILTER

A band pass filter includes parallel resonators. An inductor of a first parallel resonator at an intermediate stage is divided into a first inductor and a second inductor connected in parallel with each other. The first inductor and an inductor of a second parallel resonator are in magnetic coupling with each other, and the second inductor and an inductor of a third parallel resonator are in magnetic coupling with each other. 1. A band pass filter comprising:a first input/output terminal;a second input/output terminal;a ground terminal; anda plurality of LC parallel resonators; whereinan inductor and a capacitor are connected in parallel with each other in each of the plurality of LC parallel resonators; an LC parallel resonator at a first input/output stage;', 'at least one LC parallel resonator at an intermediate stage; and', 'an LC parallel resonator at a second input/output stage; wherein, 'the plurality of LC parallel resonators includeone end of the LC parallel resonator at the first input/output stage, one end of the at least one LC parallel resonator at the intermediate stage, and one end of the LC parallel resonator at the second input/output stage are sequentially connected between the first input/output terminal and the second input/output terminal;another end of the LC parallel resonator at the first input/output stage, another end of the at least one LC parallel resonator at the intermediate stage, and another end of the LC parallel resonator at the second input/output stage are connected to the ground terminal;the inductors of adjacent LC parallel resonators of the plurality of LC parallel resonators are magnetically coupled to one another;the inductor of the at least one LC parallel resonator at the intermediate stage is divided into a first inductor and a second inductor connected in parallel with each other; andthe first inductor is magnetically coupled to the inductor of one of the adjacent LC parallel resonators, and the second inductor is ...

ELECTRONIC COMPONENT

An electronic component includes a second inductor including a second inductor conductor that includes a first coupling portion electrically coupled to a second capacitor conductor and a second coupling portion electrically coupled to a second ground conductor, and when viewed in a plan view from a lamination direction, a first region surrounded by a first inductor conductor and the second inductor conductor is smaller in area than a second region surrounded by a third inductor conductor layer and the second inductor conductor, and a second region forming portion, which is included in the second inductor conductor and surrounds the second region, and a first region forming portion, which is included in the second inductor conductor and surrounds the first region, are electrically coupled in series in this order on a path from the first coupling portion to the second coupling portion. 1. An electronic component comprising:a laminate including a plurality of insulator layers laminated in a lamination direction; anda first LC parallel resonator, a second LC parallel resonator, and a third LC parallel resonator; whereinthe first LC parallel resonator includes a first inductor and a first capacitor;the third LC parallel resonator includes a third inductor and a third capacitor;the second LC parallel resonator includes a second inductor and a second capacitor coupled to each other in parallel;the first inductor and the third inductor respectively include a first inductor conductor and a third inductor conductor that are wound when viewed in a plan view from the lamination direction;the second capacitor includes a second capacitor conductor and a second ground conductor that face each other;the second inductor includes a second inductor conductor that includes a first coupling portion and a second coupling portion, the first coupling portion being electrically coupled to the second capacitor conductor, the second coupling portion being electrically coupled to the second ...

System for transmitting/receiving wireless power and display apparatus comprising same system

Disclosed is a system for transmitting/receiving wireless power, the system includes a wireless power transmitter including an inverter that generates a first current using an input power source, a first resonant circuit to which the first current is applied to transmit a power signal, and a first controller that controls the inverter, and a wireless power receiver including a second resonant circuit that receives the power signal, an impedance varying unit that varies an impedance of the second resonant circuit, and a second controller that controls the impedance varying unit, wherein the first controller controls the inverter to spread a frequency spectrum of the power signal, and the second controller controls the impedance varying unit such that the second resonant circuit resonates with the power signal generated from the first resonant circuit of the wireless power transmitter. Additional various embodiments recognized through the specification are possible.

NOISE FILTER AND WIRE HARNESS

A noise filter includes a filter circuit including a noise reduction element that reduces a noise component, a conductive first circuit connection member to which a first connection portion of the noise reduction element is electrically connected, and a conductive second circuit connection member to which a second connection portion of the noise reduction element is electrically connected, a first electric connection structure that electrically connects an intermediate connection portion of a core wire of a first electric wire to the first circuit connection member, and a second electric connection structure that electrically connects an intermediate connection portion of a core wire of a second electric wire whose one end is grounded, to the second circuit connection member. 1. A noise filter comprising:a filter circuit including a noise reduction element that reduces a noise component, a conductive first circuit connection member to which a first connection portion of the noise reduction element is electrically connected, and a conductive second circuit connection member to which a second connection portion of the noise reduction element is electrically connected;a first electric connection structure that electrically connects an intermediate connection portion of a core wire of a first electric wire to the first circuit connection member; anda second electric connection structure that electrically connects an intermediate connection portion of a core wire of a second electric wire whose one end is grounded, to the second circuit connection member.2. The noise filter according to claim 1 , whereinthe first electric connection structure includes a first electric wire side connection body physically and electrically connected to the intermediate connection portion of the core wire of the first electric wire, and a first circuit side connection body physically and electrically connected to the first electric wire side connection body and the first circuit connection ...

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.

ADVANCED 3D INDUCTOR STRUCTURES WITH CONFINED MAGNETIC FIELD

Embodiments of an apparatus that includes a substrate and an inductor residing in the substrate are disclosed. In one embodiment, the inductor is formed as a conductive path that extends from a first terminal to a second terminal. The conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume. Since the shape of the conductive path corresponds to the 2D lobe laid over a 3D volume, the magnetic field generated by the inductor has magnetic field lines that are predominately destructive outside the inductor and magnetic field lines that are predominately constructive inside the inductor. In this manner, the inductor can maintain a high quality (Q) factor while being placed close to other components. 1. An apparatus , comprising: the metallic structure is formed by conductive layers and vias; and', 'the vias are formed by a plurality of stacked metallic bars, which are shifted and rotated from each other;, 'a substrate comprising a substrate body and a metallic structure integrated into the substrate body, wherein the conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume such that the inductor forms a first turn and a second turn that face one another and are substantially symmetrical with respect to a first plane, and a third turn and a fourth turn that are substantially symmetrical and face one another with respect to a second plane;', 'the first plane and the second plane are substantially orthogonal to one another; and', 'the inductor is at least partially formed from the conductive layers and the vias of the metallic structure., 'an inductor residing in the substrate and comprising a conductive path that extends from a first terminal to a second terminal, wherein2. The apparatus of wherein the 2D lobe is open so that the 2D lobe extends from the first terminal to the second terminal.3. The apparatus of wherein the 2D lobe is open so as to define a ...

NOISE FILTER AND ELECTRICAL AND ELECTRONIC EQUIPMENT

A noise filter includes a magnetic core including a magnetic material; and a distance adjusting member that accepts adjustment of a distance between a loop portion and the magnetic core, the loop portion being a portion of one or more conductor wiring lines wired in loop shape out of a first conductor wiring line and a second conductor wiring line. 1. A noise filter comprising:a ground line connected between a first circuit mounted on a first conductor layer of a board and a second circuit mounted on the first conductor layer;a capacitor having a first end connected to the ground line;a first conductor wiring line connected between a second end of the capacitor and the second circuit and wired in loop shape on the first conductor layer;a second conductor wiring line connected between the first circuit and the second end of the capacitor and wired in loop shape on a second conductor layer of the board, the second conductor wiring line being coupled to the first conductor wiring line by a magnetic field;a magnetic core including a magnetic material; anda distance adjusting member to accept adjustment of a distance between at least one of loop portions and the magnetic core, the loop portions being wiring portions in loop shape of the respective first and second conductor wiring lines,wherein the distance adjusting member accepts movement of the magnetic core in a horizontal direction of the first conductor layer or a horizontal direction of the second conductor layer.2. The noise filter according to claim 1 , wherein the loop portion of the first conductor wiring line and the loop portion of the second conductor wiring line go around in a same direction.3. The noise filter according to claim 2 , wherein the loop portion of the first conductor wiring line and the loop portion of the second conductor wiring line are coaxially arranged.4. The noise filter according to claim 1 , wherein the magnetic core is adjusted by the distance adjusting member to a location at which ...

LAMINATED COIL COMPONENT AND MATCHING CIRCUIT

In a laminated coil component, first coil conductor patterns define a coil opening that generates a magnetic flux in a first direction, second coil conductor patterns define a first coil opening that generates a magnetic flux in the first direction, and a second coil opening that generates a magnetic flux in a second direction. A difference in area between the first coil opening and the second coil opening determines a degree of coupling of the coil defined by the first coil conductor pattern and the coil defined by the second coil conductor pattern. This provides a close proximal arrangement of a plurality of coils proximally while significantly reducing or preventing unnecessary coupling between the coils. 1. A laminated coil component comprising:a conductor pattern including a first coil conductor pattern and a second coil conductor pattern;a plurality of insulating layers including at least one insulating layer on which the conductor pattern is provided, the plurality of insulating layers laminated on each other; andat least one coil defined by the conductor pattern; whereinthe first coil conductor pattern defines a coil opening that generates a magnetic flux in a first direction;the second coil conductor pattern defines a first coil opening that generates a magnetic flux in the first direction and a second coil opening that generates a magnetic flux in a second direction opposite to the first direction when an electric current flows from one end of the second coil conductor pattern towards another end of the second coil conductor pattern;the coil opening of the first coil conductor pattern, in a plan view, overlaps a plurality of coil openings including the first coil opening and the second coil opening of the second coil conductor pattern;the first coil conductor pattern has a loop shape or a substantial loop shape;the second coil conductor pattern includes an 8-shaped structure or a substantially 8-shaped structure on a single insulating layer of the ...

HIGH ISOLATION POWER COMBINER/SPLITTER AND COUPLER

A power combiner has at least two uncommon ports and at least one common port. Isolation between the uncommon ports over a broad band is achieved through a lossy band response circuit having a phase and amplitude response effective to compensate for changes in phase and amplitude between the uncommon ports with change in frequency of an input signal. The lossy band response circuit may have a resistance approximating a resistance effective to isolate the uncommon ports over a bandwidth at a center frequency. A coupler may likewise increase the band for which an input port is isolated from the isolated port by coupling a lossy circuit between the input port and isolated port. The lossy circuit may be embodied as a lossy band response circuit. 1. A coupler comprising: an input port', 'an output port;', 'a coupled port;', 'an isolation port;', 'a first inductor connected between the input port and the output port;', 'a second inductor connected between the coupled and the isolation port;', 'a third inductor magnetically coupled to the first inductor and connected between a ground potential and to isolation port; and', 'a fourth inductor magnetically coupled to the second inductor and connected between the ground potential and to the output port; and, 'a mutual inductance coupler including—'}a lossy circuit connected between the input port and the isolation port and having a resistance effective to receive an input signal from the input port and in response to the input signal output a first signal to the isolation port;wherein the mutual inductance coupler is effective to receive the input signal from the input port and in response to the input signal output a second signal to the isolation port, the second signal having approximately equal amplitude and opposite phase to the first signal.2. The coupler of claim 1 , wherein the lossy circuit is a lossy band response circuit.3. The coupler of claim 1 , wherein the lossy circuit is at least one resistor.4. The coupler of ...

METHOD AND APPARATUS FOR DUAL NOTCH RIPPLE FILTERING

An apparatus includes a self-coupled transformer, a first band stop filter and a tank circuit connected in series with the first band stop filter between first and second windings of the self-coupled transformer. An inductor of the tank circuit acts as an out-of-phase third winding of the self-coupled transformer. 1. An apparatus comprising:a self-coupled transformer having first, second, and third windings that are operatively connected in series between higher and lower potential input terminals, with the second winding connected out-of-phase to the first and third windings;a first band stop filter connected in series between the second and third windings of the self-coupled transformer;a first tuning capacitor connected in parallel across the second winding of the self-coupled transformer; andoutput terminals operatively connected between the first and second windings and between the second and third windings.2. The apparatus of claim 1 , further comprising at least one additional band stop filter connected in parallel to the first band stop filter.3. The apparatus of claim 1 , further comprising:a load ladder of resistors and capacitors connected across the output terminals;wherein the load ladder is tapped for high, low, and center outputs.4. The apparatus of claim 1 , wherein the self-coupled transformer windings have inductances smaller than the inductance of the band stop filter.5. The apparatus of claim 1 , wherein the out-of-phase winding of the self-coupled transformer has an inductance larger than the other windings.6. The apparatus of claim 1 , wherein the out-of-phase winding of the self-coupled transformer has an inductance larger than the inductance of the band stop filter.7. The apparatus of claim 1 , wherein the self-coupled transformer windings have inductances larger than the inductance of the band stop filter.8. A method comprising:connecting first, second, and third windings of a self-coupled transformer in series across terminals of a pulse ...

High frequency component and filter component

A high frequency component includes a multilayer body including a plurality of insulating layers stacked in a stacking direction, linear conductors extending along the insulating layers, interlayer connection conductors extending through at least one of the insulating layers, and planar conductors extending along the insulating layers. The high frequency component further includes transverse coils and internal capacitors. Each of the transverse coils includes the linear conductors and the interlayer connection conductors spirally wound in a plane in a plurality of turns around a winding axis extending in a direction perpendicular or substantially perpendicular to the stacking direction. Each of the internal capacitors includes the planar conductors being opposed to each other such that at least one of the insulating layers is disposed therebetween, the internal capacitor being arranged within a coil opening of the transverse coil when viewed along the winding axis of the transverse coil.

Filter with antiresonance frequency correction

A filter comprises a series unit comprising a plurality of series resonators, a shunt unit comprising a plurality of shunt resonators, connected between the plurality of series resonators and a ground, and a correction unit comprising an inductor unit connected between both ends of at least one of a set of series resonators of the plurality of series resonators and a set of shunt resonators of the plurality of shunt resonators, and an impedance unit connected between the inductor unit and a ground.

DIPLEXER

A diplexer includes dielectric layers stacked in a lamination direction. The diplexer includes a reference surface extending in a direction orthogonal or substantially orthogonal to the lamination direction, a common terminal on the reference surface, a high-pass circuit including a capacitor, a low-pass circuit including an inductor, a common line connecting the common terminal and a branch portion, a first via connecting the branch portion and the capacitor in the high-pass circuit, and a second via connecting the branch portion and the inductor in the low-pass circuit. The first via extends along the lamination direction from a first layer where the branch portion is located to a second layer where the capacitor in the high-pass circuit is located. 1. A diplexer comprising:a plurality of dielectric layers laminated in a lamination direction;a reference surface extending in a direction orthogonal or substantially orthogonal to the lamination direction;a common terminal disposed on the reference surface;a high-pass circuit configured to allow a signal with a frequency higher than a characteristic frequency to pass therethrough;a low-pass circuit configured to allow a signal with a frequency lower than the characteristic frequency to pass therethrough;a common line including a first end portion connected to the common terminal;a first line connecting a second end portion of the common line and the high-pass circuit; anda second line connecting the second end portion of the common line and the low-pass circuit; whereinthe high-pass circuit includes a capacitor connected to the first line; andthe first line includes a first via extending along the lamination direction from a first layer at which the second end portion of the common line is located to a second layer at which the capacitor in the high-pass circuit is located.2. The diplexer according to claim 1 , whereinthe low-pass circuit includes an inductor connected to the second line; andthe second line includes a ...

Calibration for a tunable rf filter structure

Embodiments of radio frequency (RF) front-end circuitry are disclosed where the RF front-end circuitry includes a tunable RF filter structure and a calibration circuit. The tunable RF filter structure includes (at least) a pair of weakly coupled resonators and defines a transfer function with a passband. The calibration circuit is configured to shape the passband so that the passband defines a center frequency. Additionally, the calibration circuit is configured to detect a phase difference at the target center frequency between the pair of weakly coupled resonators and adjust the phase difference of the pair of weakly coupled resonators at the target center frequency so as to reduce a frequency displacement between the center frequency of the passband and the target center frequency. In this manner, the calibration circuit calibrates the tunable RF filter structure to correct for errors in the center frequency of the passband due to component manufacturing variations.

Interference rejection rf filters

RF communications circuitry includes an RF filter structure, which includes a group of resonators, a group of cross-coupling capacitive structures, and a group of egress/ingress capacitive structures, is disclosed. Each of the group of cross-coupling capacitive structures is coupled between two of the group of resonators. A first portion of the group of egress/ingress capacitive structures is coupled between a first connection node and the group of resonators. A second portion of the group of egress/ingress capacitive structures is coupled between a second connection node and the group of resonators.

High frequency filter

In a high frequency filter, a multilayer structure includes a plurality of insulator layers, a first transmission line transmits an input signal, and a second transmission line is electromagnetic coupled with the first transmission line on the same insulator layer and transmits an output signal. A conductor layer defines capacitors with the first transmission line and the second transmission line with the insulator layer in between. A dielectric constant of the insulator layer that comes in contact with the first transmission line and the second transmission line is higher than a dielectric constant of an insulator layer other than the insulator layer.

ADVANCED 3D INDUCTOR STRUCTURES WITH CONFINED MAGNETIC FIELD

Embodiments of an apparatus that includes a substrate and an inductor residing in the substrate are disclosed. In one embodiment, the inductor is formed as a conductive path that extends from a first terminal to a second terminal. The conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume. Since the shape of the conductive path corresponds to the 2D lobe laid over a 3D volume, the magnetic field generated by the inductor has magnetic field lines that are predominately destructive outside the inductor and magnetic field lines that are predominately constructive inside the inductor. In this manner, the inductor can maintain a high quality (Q) factor while being placed close to other components. 1. An apparatus , comprising:a substrate; the first conductive path has a shape corresponding to a first two-dimensional (2D) lobe laid over a first three-dimensional (3D) volume such that the first inductor forms a first turn and a second turn that face one another and are substantially symmetrical with respect to a first plane, and forms a third turn and a fourth turn that are substantially symmetrical and face one another with respect to a second plane; and', 'the first plane and the second plane are substantially orthogonal to one another; and, 'a first inductor residing in the substrate and comprising a first conductive path that extends from a first terminal to a second terminal, wherein the second conductive path has a shape corresponding to a second 2D lobe laid over a second 3D volume such that the second inductor forms a fifth turn and a sixth turn that face one another and are substantially symmetrical with respect to a third plane, and forms a seventh turn and a eight turn that are substantially symmetrical and face one another with respect to a fourth plane; and', 'the third plane and the fourth plane are substantially orthogonal to one another., 'a second inductor residing in the substrate and near the ...

CIRCUIT BOARD, FILTER CIRCUIT USING THE SAME, AND CAPACITANCE ELEMENT

A circuit board mounted with a capacitor includes an electrode to connect one terminal of a capacitor, a first inductor including a wiring pattern that extends from a first end connected with the electrode to a second end across a region mounted with the capacitor, and a second inductor including a wiring pattern that extends from the first end connected with the electrode to a second end across the region mounted with the capacitor from the opposite side from the first inductor. In a plan view, the wiring pattern of the first inductor and the wiring pattern of the second inductor intersect with each other, and an angle defined by the wiring pattern of the first inductor and the wiring pattern of the second inductor is an angle other than a right angle. 1. A circuit board mounted with a capacitance element , the circuit board comprising:an electrode to connect one terminal of the capacitance element;a first inductance element including a first wire that extends from a first end connected with the electrode to a second end across a region mounted with the capacitance element; anda second inductance element including a second wire that extends from a first end connected with the electrode to a second end across the region mounted with the capacitance element from the opposite side from the first wire; whereinin a plan view, the first wire of the first inductance element and the second wire of the second inductance element intersect with each other, and any angle defined by the first wire and the second wire is an angle other than a right angle.2. The circuit board according to claim 1 , wherein the first inductance element and the second inductance element have a same shape and have a line-symmetric shape with respect to the electrode.3. The circuit board according to claim 1 , wherein the angle defined by the first wire and the second wire is an angle smaller than 90 degrees counterclockwise from the first wire to the second wire in a plan view.4. The circuit board ...

RESONANT CIRCUIT, BAND ELIMINATION FILTER, AND BAND PASS FILTER

A resonant circuit includes a first inductor and a first capacitor which define a first series circuit and a second inductor connected in parallel to the first series circuit. The first inductor and the second inductor are coupled via a magnetic field in a direction in which magnetic fluxes passing through the inductor and the second inductor strengthen each other to effectively increase steepness in a transient band. 1. A resonant circuit comprising:a first inductor and a first capacitor which define a first series circuit; anda second inductor connected in parallel to the first series circuit; whereinthe first inductor and the second inductor are coupled via a magnetic field in a direction in which magnetic fluxes passing through the first inductor and the second inductor strengthen each other.2. The resonant circuit according to claim 1 , wherein an inductance of the first inductor is smaller than an inductance of the second inductor.3. The resonant circuit according to claim 1 , whereinthe first inductor includes a first coil conductor and the second inductor includes a second coil conductor; andthe first coil conductor and the second coil conductor are integrally provided in a multilayer board in which a plurality of dielectric layers are laminated, have same or substantially same inner and outer diameter dimensions, and share a coil axis.4. The resonant circuit according to claim 3 , wherein each of the first coil conductor and the second coil conductor includes conductor patterns provided on the plurality of dielectric layers claim 3 , and interlayer connection conductors.5. The resonant circuit according to claim 3 , wherein each of the first coil conductor and the second coil conductor has a rectangular or substantially rectangular helical shape.6. A band elimination filter comprising:a first port;a second port; anda first resonant circuit in which a first inductor and a first capacitor defining a first series circuit and a second inductor connected in ...

POWER/DATA ELECTRICAL COUPLER

An electrical coupler includes: a sending transformer having a winding for receiving data signals and two windings connected in series with a common point and two terminals to be connected to a first wires pair of a bus to deliver the data signals at the first winding terminals to said wire pair; a receiving transformer having two windings connected in series with a common point and two terminals to be connected to a second pair of wires of said bus to receive data signals on the pair of wires and a winding for delivering said data signals; and a galvanic isolation transformer with a first winding, the terminals of which are connected to the coupler's power supply pins, and second and third windings connected in series with a common point connected to a mechanical ground and the respective free terminals connected to the common terminals of sending and receiving transformers. 1. A power/data electrical coupler comprising:a sending transformer comprising a winding for receiving data signals and two windings connected in series with each other with a common point and two terminals intended to be connected to a first pair of wires of a bus in order to deliver to said pair of wires, in differential mode, the data signals present at the terminals of the first winding,a receiving transformer comprising of two windings connected in series with each other with a common point and two terminals intended to be connected to a second pair of wires of said bus in order to receive, in differential mode, data signals present on the pair of wires of the bus and a winding for delivering said data signals, anda galvanic isolation transformer that comprises a first winding the terminals of which are connected to the power supply pins of said coupler and second and third windings connected in series with each other with a common point connected to a mechanical ground and the respective free terminals connected to the common terminal of the windings of the sending transformer and to the ...

FILTER CIRCUITS HAVING A RESONATOR-BASED FILTER AND A MAGNETICALLY-COUPLED FILTER

Filter circuits having a resonator-based filter and a magnetically-coupled filter are disclosed. A filter circuit is deployed with a resonator-based passband filter connected to a magnetically-coupled filter which mitigates or reduces flyback of the resonator-based filter. The magnetically-coupled filter can be a passband filter with a relatively low insertion loss. The magnetically-coupled filter can be designed to mitigate flyback of the resonator-based filter by attenuating frequency response at selected frequency ranges. 1. A filter circuit , comprising:a first circuit port;a second circuit port;a first filter connected between the first circuit port and the second circuit port, comprising a plurality of acoustic wave resonators in a ladder configuration; anda second filter connected in series with the first filter between the first circuit port and the second circuit port, the second filter comprising a first shunt inductor magnetically coupled to a second shunt inductor.2. The filter circuit of claim 1 , wherein the first shunt inductor is not electrically connected to the second shunt inductor3. The filter circuit of claim 2 , wherein the second filter further comprises a first series capacitor connected between the first shunt inductor and the first circuit port.4. The filter circuit of claim 3 , wherein the second filter further comprises a second series capacitor connected between the second shunt inductor and the first filter.5. The filter circuit of claim 2 , wherein the second filter further comprises a bypass capacitor connected between the first circuit port and the first filter.6. The filter circuit of claim 1 , wherein the first filter comprises a series branch connected between the first circuit port and the second circuit port claim 1 , the series branch comprising:a first series resonator of the plurality of acoustic wave resonators connected between a first node and a second node in the series branch; anda second series resonator of the ...

Filter element

A filter element includes series inductors connected in series to a signal path, shunt inductors shunt-connected between the signal path and ground, and a capacitor connected in series to the shunt inductors. The shunt inductors include first and second shunt inductors connected in parallel to each other. Conductive patterns of the capacitor are overlapped with coil opening portions of the series inductors and the shunt inductors viewed from a lamination direction. The capacitor is sandwiched between the first shunt inductor and the second shunt inductor in the lamination direction of insulating layers and the conductive patterns.

POWER CONVERSION SYSTEM

A power conversion system including a plurality of power conversion devices connected in parallel. Each of the plurality of power conversion devices includes: a power conversion circuit configured to convert DC to AC; and an AC filter circuit connected to an output side of the power conversion circuit. The AC filter circuit is an LC low-pass filter including a first filter reactor and an AC filter capacitor connected in an L shape. The AC filter circuit further includes a second filter reactor connected in series to the AC filter capacitor, and a resistance constructing a series circuit together with the AC filter capacitor and the second filter reactor. 1. A power conversion system comprising a plurality of power conversion devices connected in parallel , a power conversion circuit configured to convert DC to AC; and', 'an AC filter circuit connected to an output side of the power conversion circuit,, 'each of the plurality of power conversion devices includingthe AC filter circuit being an LC low-pass filter including a first filter reactor and an AC filter capacitor connected in an L shape, andthe AC filter circuit further including a second filter reactor connected in series to the AC filter capacitor, and a resistance constructing a series circuit together with the AC filter capacitor and the second filter reactor.2. The power conversion system according to claim 1 , wherein a resonance frequency of an LC series circuit which is formed of the second filter reactor and the AC filter capacitor is equal to a carrier frequency of the power conversion circuit.3. The power conversion system according to claim 1 , wherein the resistance is constructed by connecting a plurality of resistance components in parallel.4. The power conversion system according to claim 1 , wherein the resistance is a plate-shaped resistor or a non-inductive resistor.5. The power conversion system according to claim 1 ,wherein the plurality of power conversion devices are connected in ...

Radio frequency system with tunable filters including tunable filter with mutually coupled inductors

Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.

NOISE FILTER

Obtain a noise filter in which an attenuation effect of the noise filter is maintained to a high frequency wave, and it can be prevented that the noise filter is set at a high temperature. Ground patterns (), (), (), and () of ground conductors () and () are extended to the outside of winding patterns so as to be arranged at positions through () through () at which the ground patterns (), (), (), and () are faced to input-output terminal positions (), (), (), and () of the winding patterns of a winding conductor (), and slits () through () and slits () through (), which separate portions which are arranged around a magnetic material core (), are provided at the ground patterns (), (), (), and () of the ground conductors () and (). 1. A noise filter comprising:a winding conductor which is composed of a conductor having a plane shape, and composes winding patterns which are arranged with a layer shape and electrically connect a component between layers;ground conductors, which are arranged in a state where a dielectric is sandwiched between the ground conductors and conductors of the winding patterns, and compose ground patterns; anda magnetic material core to which the winding patterns are wound; whereinthe ground patterns are extended to the outside of the winding patterns so as to be arranged at positions where the ground patterns are faced to input-output terminals of the winding patterns; and slits, which separate portions which are arranged around the magnetic material core, are provided at the ground patterns of the ground conductors.2. A noise filter as recited in claim 1 , wherein an input-output terminal of the winding conductor is provided at an outer circumference side of a magnetic flux by which a closed magnetic passage is formed in a core of the magnetic material core.3. A noise filter as recited in claim 1 , wherein the winding patterns are formed with a board shape at the winding conductor claim 1 , and a plurality of the winding patterns are ...

Noise filter

A noise filter includes a first capacitor and a second capacitor which are two line-to-line capacitors. Currents flowing through the first capacitor and the second capacitor are in directions opposite to each other, and meanwhile, currents flowing through a first connection wire and a second connection wire are in the same direction and parallel to each other. Accordingly, magnetic coupling is caused between the connection wires and the line-to-line capacitors. Thus, the residual inductance of a line-to-line capacitor itself is reduced, whereby an attenuation characteristic for normal mode noise is further improved.

COMMON-MODE CHOKE COIL

A common-mode choke coil includes a first filter unit and a second filter unit, each of which serves as a common-mode filter unit and is formed by arranging a primary coil and a secondary coil in a stacking direction. Of the first filter unit and the second filter unit, the first filter unit has a resonant frequency different from that of the second filter unit, and the line length is different between the primary coil and the secondary coil. 1. A common-mode choke coil comprising:a plurality of common-mode filter units each formed by arranging a primary coil and a secondary coil in a stacking direction,wherein the plurality of common-mode filter units includes one common-mode filter unit whose resonant frequency is different from a resonant frequency of another common-mode filter unit and one common-mode filter unit in which a line length is different between the primary coil and the secondary coil.2. The common-mode choke coil according to claim 1 , whereinthe plurality of common-mode filter units includes a first filter unit and a second filter unit whose resonant frequencies are different from one another, and between the first filter unit and the second filter unit, the primary coils are connected in series, and the secondary coils are connected in series,in the second filter unit, a plurality of coil conductors are arranged along the stacking direction, each of the plurality of coil conductors being wound in a spiral shape, and a reference primary coil conductor and a reference secondary coil conductor are adjacent to one another in the stacking direction and have opposite winding directions, the reference primary coil conductor being one of the plurality of coil conductors that constitutes the primary coil, the reference secondary coil conductor being one of the plurality of coil conductors that constitutes the secondary coil, anda line length of a far side coil is longer than a line length of a near side coil, where, of the primary coil and the secondary ...

Advanced 3d inductor structures with confined magnetic field

Embodiments of an apparatus that includes a substrate and an inductor residing in the substrate are disclosed. In one embodiment, the inductor is formed as a conductive path that extends from a first terminal to a second terminal. The conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume. Since the shape of the conductive path corresponds to the 2D lobe laid over a 3D volume, the magnetic field generated by the inductor has magnetic field lines that are predominately destructive outside the inductor and magnetic field lines that are predominately constructive inside the inductor. In this manner, the inductor can maintain a high quality (Q) factor while being placed close to other components.

Lc filter

An LC filter includes a first capacitor electrode connected to one end of a first via conductor and faces a first ground electrode in a laminating direction. A second capacitor electrode is connected to one end of a second via conductor and faces the first ground electrode in the laminating direction. A third capacitor electrode is connected to one end of a third via conductor and faces the first ground electrode in the laminating direction. A fourth capacitor electrode is connected to one end of a fourth via conductor and faces the first ground electrode in the laminating direction. The second capacitor electrode faces each of the first capacitor electrode, the third capacitor electrode, and the fourth capacitor electrode in a direction orthogonal or substantially orthogonal to the laminating direction.

BAND STOP FILTER STRUCTURE AND METHOD OF FORMING

A filter structure includes a ground plane in a first metal layer of an IC package, a plate in a second metal layer of the IC package, a dielectric layer between the ground plane and the plate, the ground plane, the dielectric layer, and the plate thereby being configured as a capacitive device. An inductive device in a third metal layer of the IC package is electrically connected to the plate, and a perimeter of the plate is aligned with a perimeter of the inductive device. 1. A filter structure comprising:a ground plane in a first metal layer of an integrated circuit (IC) package;a plate in a second metal layer of the IC package;a dielectric layer between the ground plane and the plate, the ground plane, the dielectric layer, and the plate thereby being configured as a capacitive device; and the inductive device is electrically connected to the plate, and', 'a perimeter of the plate is aligned with a perimeter of the inductive device., 'an inductive device in a third metal layer of the IC package, wherein'}2. The filter structure of claim 1 , wherein the perimeter of the inductive device comprises perpendicular segments of two spiral paths.3. The filter structure of claim 2 , whereinthe spiral path segments have a width w,the two spiral paths are separated by a spacing s, anda ratio s/w has a value ranging from 1 to 2.4. The filter structure of claim 2 , whereinthe two spiral paths are joined at a center of the inductive device, andthe center of the inductive device is electrically connected to the plate through a via.5. The filter structure of claim 4 , whereinthe ground plane is positioned between the plate and the inductive device, andthe via extends between the plate and the inductive device through an opening in the ground plane.6. The filter structure of claim 1 , wherein each of the perimeter of the plate and the perimeter of the inductive device are aligned within a perimeter of the ground plane.7. The filter structure of claim 1 , wherein each of the ...

Harmonics suppression filter

A harmonics suppression filter includes a main circuit, a first inner circuit, a first outer circuit, a first inner node and a first outer node. The first inner circuit, the first outer circuit and the main circuit are in the same layer of the base board. Meanwhile, the first inner circuit is located inside of the main circuit. There is an inner gap between the first inner circuit and the main circuit. The first outer circuit is located outside of the main circuit. There is an outer gap between the first outer circuit and the main circuit. The first inner node is located in the inner gap to couple the first inner circuit with the main circuit. The first outer node is located in the outer gap to couple the first outer circuit with the main circuit.

Impedance matching device with coupled resonator structure

An impedance matching device is presented. The device includes an input terminal configured to receive a radio frequency signal, and an output terminal configured to couple to an amplifier. The device includes an impedance prematch network coupled to the input terminal and the output terminal. The impedance prematch network includes a first inductor, such as a first wire bond. The device includes a resonator structure including a second inductor, such as a wire bond, inductively coupled to the first inductor.

Filter circuitry

Embodiments provide methods, devices, circuitry and systems for supporting or implementing functionality to provide a filtering circuit, and for providing a transmitter, receiver or transceiver system incorporating the same. One embodiment provides a circuit for filtering signals. The circuit comprises a first connection configured to be connected to a signal line carrying varying signal voltage and a second connection. The circuit also comprises a first circuit portion comprising a parallel resonant circuit having a variable capacitance connected in parallel with a first inductor; and a second circuit portion comprising a second inductor. The first circuit portion and the second circuit portion are connected in series between the first connection and the second connection.

HIGH ISOLATION POWER COMBINER/SPLITTER AND COUPLER

A power combiner has at least two uncommon ports and at least one common port. Isolation between the uncommon ports over a broad band is achieved through a lossy band response circuit having a phase and amplitude response effective to compensate for changes in phase and amplitude between the uncommon ports with change in frequency of an input signal. The lossy band response circuit may have a resistance approximating a resistance effective to isolate the uncommon ports over a bandwidth at a center frequency. A coupler may likewise increase the band for which an input port is isolated from the isolated port by coupling a lossy circuit between the input port and isolated port. The lossy circuit may be embodied as a lossy band response circuit. 1. An electrical circuit comprising:a plurality of ports, including at least one common port and two or more uncommon ports;operational elements providing a coupling means, coupling the plurality of ports together and creating a coupling relationship among the plurality of ports at an operational bandwidth including an operational frequency;one or more lossy band response circuits connected between one of the operational elements and at least one of a ground potential and another of the operational elements, the one or more lossy band response circuits each including one or more reactive elements and one or more resistive elements, the one or more resistive elements having resistance substantially greater than a parasitic resistance of the one or more reactive elements;wherein the one or more lossy band response circuits provide a minimum electrical isolation between the two or more uncommon ports over an enhanced bandwidth around the operational frequency, the enhanced bandwidth being greater than a passive bandwidth of a passive electrical isolation at or below the minimum electrical isolation, the passive electrical isolation and passive bandwidth being provided by a non-reactive resistance coupled one of (a) between the two ...

Coupled Resonator On-Die Filters for WiFi Applications

A radio frequency (RF) filter circuit for rejecting one or more spurious components of an input signal has a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor, and a second resonator circuit with a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor. First and second resonator coupling capacitors are connected to the first resonator circuit and the second resonator circuit. A first port and a second port are connected to the first resonator circuit and the second resonator, with the filtered signal of the input signal passed through both the first resonator circuit and the second resonator circuit being output.

Filter

A filter includes: a series part disposed between a signal input terminal and a signal output terminal, and including at least one first bulk-acoustic resonator; an inductor portion including a first inductor disposed between ends of the series part and a second inductor having a first end connected to a connection node of the series part and the first inductor; and a shunt part disposed between a second end of the second inductor and a ground, and including at least one second bulk-acoustic resonator, wherein a resonant frequency of the at least one second bulk-acoustic resonator is higher than a resonant frequency of the at least one first bulk-acoustic resonator.

Filter for power train

An output filter for a power train between a power supply and a motor, the filter comprising a common mode inductor, comprising an inductance for each phase line of the power train, and a resistance for each phase line, connected in parallel with the respective phase line inductance of the common mode inductor.

Signal Filtering Using Magnetic Coupling

An apparatus is disclosed for signal filtering using magnetic coupling. The apparatus includes a substrate having an interface disposed on a surface of the substrate. The interface includes multiple connectors and is configured to accept a filter die that includes an acoustic resonator network. The apparatus also includes multiple inductors that are supported by the substrate. The multiple inductors are connected to the multiple connectors of the interface and are configured to generate a mutual inductance based on individual inductors of the multiple inductors.

Series inductor array implemented as a single winding and filter including the same

There are provided a series inductor array implemented as a single winding capable of decreasing a layout area for providing a plurality of inductors, and a filter including the same, the series inductor array including a winding structure having both ends, and one or more terminal parts electrically connected to a region between the both ends of the winding structure to form an external electrical connection, wherein the winding structure has a structure in which a plurality of inductors having inductance formed in regions of the winding structure disposed between the both ends thereof and the terminal parts or between the terminal parts are connected in series.

MULTI-STAGE LNA WITH REDUCED MUTUAL COUPLING

A low noise amplifier includes at least two variable gain amplifier stages, each variable gain amplifier configured to accept an input signal and to provide a load driving signal; a tunable bandpass filter connected as a load to each variable gain amplifier stage, wherein each bandpass filter includes a resonant tank, each resonant tank including an inductor, wherein each inductor of each resonant tank is oriented in orthogonal relation with respect to each respective longitudinal axis of each next inductor, the orthogonal relation of the respective longitudinal axes configured to reduce mutual coupling between the tunable bandpass filters; a cross-coupled transistor pair, and at least one cross-coupled compensation transistor pair biased in a subthreshold region configured to add a transconductance component as a function of a load driving signal; and, a controller circuit configured to tune each tunable bandpass filter. 114-. (canceled)15. An apparatus comprising:at least two variable gain amplifier stages, each variable gain amplifier stage configured to accept an input signal and to provide a load driving signal; a resonant tank, each resonant tank including an inductor, wherein each inductor of each resonant tank is oriented in orthogonal relation with respect to each respective longitudinal axis of each next inductor, the orthogonal relation of the respective longitudinal axes configured to reduce mutual coupling between the tunable bandpass filters,', 'a cross-coupled transistor pair, and', 'at least one cross-coupled compensation transistor pair biased in a subthreshold region configured to add a transconductance component as a function of the respective load driving signal for the respective tunable bandpass filter; and,, 'a tunable bandpass filter connected as a load to each variable gain amplifier stage, wherein each tunable bandpass filter includesa controller circuit configured to tune each tunable bandpass filter.16. The apparatus of claim 15 , wherein ...

BAND STOP FILTER STRUCTURE AND METHOD OF FORMING

A filter structure includes a capacitive device and an inductive device. The capacitive device includes a ground plane in a first metal layer of an integrated circuit (IC) package, a plate in a second metal layer of the IC package, and a dielectric layer between the ground plane and the plate. The inductive device includes first and second conductive paths in a third metal layer of the IC package, each of the first and second conductive paths is electrically connected to the plate and has a width w, the first and second conductive paths are separated by a spacing s, and a ratio s/w has a value ranging from 1 to 2. 1. A filter structure comprising: a ground plane in a first metal layer of an integrated circuit (IC) package;', 'a plate in a second metal layer of the IC package; and', 'a dielectric layer between the ground plane and the plate; and, 'a capacitive device comprisingan inductive device comprising first and second conductive paths in a third metal layer of the IC package, each of the first and second conductive paths is electrically connected to the plate and has a width w,', 'the first and second conductive paths are separated by a spacing s, and', 'a ratio s/w has a value ranging from 1 to 2., 'wherein'}2. The filter structure of claim 1 , wherein each of the first and second conductive paths is electrically connected to the plate through a single via extending between the second and third metal layers of the IC package.3. The filter structure of claim 2 , wherein the via extends through an opening in the ground plane.4. The filter structure of claim 1 , whereinthe capacitive device is a first capacitive device,the inductive device is a first inductive device, and the ground plane;', 'another plate in a fourth metal layer of the IC package; and', 'another dielectric layer between the ground plane and the another plate; and, 'a second capacitive device comprising, 'the filter structure further comprisesa second inductive device comprising third and fourth ...

Electrical balanced duplexer-based duplexer

An electrical balance duplexer (EBD) may be used to isolate a transmitter and receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the EBD to cut-off access to the common antenna rather than duplicate the antenna impedance, the EBD is balanced. Such cut-offs may have a lower insertion loss than an EBD that merely duplicates the antenna impedance to separate the differential signals of the receiver/transmitter from the common mode signal.

EQUAL COUPLING COMMON MODE INDUCTOR APPARATUS AND METHOD OF USE THEREOF

The invention comprises an electrical system apparatus for processing three-phase power, comprising: a first, second, and third inductor connected on a first end to a first common magnetic field carrying plate and connected on a second end to a second common magnetic field carrying plate, where the three inductors are equidistant from each other and/or equidistance from a central axis, which yields an equal coupling common mode inductor-capacitor based filtering apparatus. Generally, inductor placement symmetry and/or equal magnetic field permeabilities between each pair of the three inductors balances magnetic fields within each inductor at each point of time, where each of the three inductors is connected to a single phase of three-phase power, the three phases offset from each other by one-third of a period. 1. An electrical system apparatus for processing three-phase power , comprising:a first inductor;a second inductor;a third inductor;a first magnetic field carrying plate connecting a first end of each of said first inductor, said second inductor, and said third inductor;a second magnetic field carrying plate connecting a second end of each of said first inductor, said second inductor, and said third inductor; andan electrical connection configured to connect each of the first inductor, the second inductor, and the third inductor to a single and different phase of the three-phase power during use,wherein a first distance between a geometric center said first inductor and a central point of said second inductor is within ten percent of both: (1) a second distance between said central point of said second inductor and a mid-point of said third inductor and (2) a third distance between said geometric center of said first inductor and said mid-point of said third inductor.2. The apparatus of claim 1 , said first magnetic field carrying plate further comprising:{'sub': '3', 'Csymmetry.'}3. The apparatus of claim 2 , said first inductor further comprising: a first ...

Common mode filter having signal compensation function

Disclosed herein is a common mode filter having a signal compensating function, including: a magnetic substance substrate included as a base of the common mode filter; a first conductor coil portion that is formed on a surface of the magnetic substance substrate and is included to remove common mode noise generated in a circuit; and a second conductor coil portion that is electrically connected to the first conductor coil portion to be formed on an upper portion of the first conductor coil portion, and is included to compensate for a signal reduction portion of the circuit due to removal of noise by using the first conductor coil portion.

Transformer Based Impedance Matching Network And Related Power Amplifier, ADPLL And Transmitter Based Thereon

A novel and useful transmitter (TX) architecture for ultra-low power (ULP) radios. An all-digital PLL employs a digitally controlled oscillator (DCO) having switching current sources to reduce supply voltage and power consumption without sacrificing phase noise and startup margins. It also reduces 1/f noise allowing the ADPLL after settling to reduce its sampling rate or shut it off entirely during direct DCO data modulation. A switching power amplifier integrates its matching network while operating in class-E/F 2 to maximally enhance its efficiency. The transmitter has been realized in 28 nm CMOS and satisfies all metal density and other manufacturing rules. It consumes 3.6 mW/5.5 mW while delivering 0 dBm/3 dBm RF power in Bluetooth Low-Energy.

DIFFERENTIAL MODE FILTER

Disclosed herein is a differential mode filter that includes first and second terminal electrodes provided on a first flange part of a core, and first and second wires wound around a winding core part of the core in an opposite direction to each other and connected respectively to the first and second terminal electrodes. The first and second wires cross each other on the winding core part to form a plurality of crossing portions that include first, second, and third crossing portions that are first, second, and third occurrences counting from the one end of the first and second wires, respectively. A first crossing angle between the first and second wires at the first crossing portion is larger than at least one of second and third crossing angles between the first and second wires at the second and third portions, respectively. 1. A differential mode filter comprising:a core having a winding core part extending in an axial direction and a first flange part provided at one end of the winding core part in the axial direction;first and second terminal electrodes provided on the first flange part;a first wire wound around the winding core part in a first winding direction and having one end connected to the first terminal electrode; anda second wire wound around the winding core part in a second winding direction opposite to the first winding direction and having one end connected to the second terminal electrode,wherein the first and second wires cross each other on the winding core part to form a plurality of crossing portions that include first, second, and third crossing portions that are first, second, and third occurrences counting from the one end of the first and second wires, respectively, andwherein a first crossing angle between the first and second wires at the first crossing portion is larger than at least one of second and third crossing angles between the first and second wires at the second and third portions, respectively.2. The differential mode ...

Electromagnetic wave noise absorbers for smartphones and related devices

A smartphone and such devices use an ultra-high-speed digital signal. Thus, an electromagnetic wave noise emits inside. Once the electromagnetic wave noise emits in the smartphone and such devices, it stays inside. When the electromagnetic wave noise is released outside, an original accurate digital signal and an original accurate analog signal can be obtained. The sound of the smartphone and such devices becomes clear. By using a USB cable, a power supply line terminal and a ground line terminal of the electromagnetic wave noise absorber respectively connect to the power supply line terminal and the ground line terminal of the smartphone and such devices. By using a noise filter circuit and an electromagnetic noise absorber copper plate, the electromagnetic wave noise absorber absorbs the electromagnetic wave noise from the smartphone and such devices. The electromagnetic wave noise disappears in the electromagnetic noise absorber copper plate.

Band stop filter structures and methods of forming and operating same

A filter structure including a ground plane wherein the ground plane is in a first metal layer of an integrated circuit (IC) package. The filter structure further includes a plate in a second metal layer of the IC package. The filter structure further includes a dielectric layer between the ground plane and the plate, wherein the ground plane, the dielectric layer, and the plate are thereby configured as a capacitive device. The filter structure further includes an inductive device in a third metal layer of the IC package, wherein the inductive device is electrically connected to the plate.

DEVICE FOR LINKING AN ELECTRICAL MEMBER TO A COMMUNICATION LINE

A connection device for connecting an electrical member to a communications line comprising at least two conductors for carrying differential signals. The connection device includes at least one data exchange interface component connected to the line to send and/or receive data, and a connection for connecting the electrical member to the line. The connection device also includes in succession, going from the connection to the interface components, at least a first transformer arranged to perform common mode filtering on each conductor of the communications line; a second transformer arranged to perform electrical isolation so as to isolate the communications line at least from the interface component; a third transformer connected in parallel with the second transformer and made up of two windings having terminals including terminals that are not connected to the second transformer and that are connected to frame ground of the electrical member; and a fourth transformer arranged to provide electrical isolation so as to isolate at least the interface component from frame ground. 1. A connection device for connecting an electrical member to a communications line comprising at least two conductors for carrying differential signals , the connection device including at least one data exchange interface component connected to the line to send and or receive data and connection means for connecting the electrical member to the line , the connection device also including in succession , going from the connection means to the interface components , at least:a first transformer arranged to perform common mode filtering on each conductor of the communications line;a second transformer arranged to perform electrical isolation so as to isolate the communications line at least from the interface component;a third transformer connected in parallel with the second transformer and made up of two windings having terminals including terminals that are not connected to the second ...

High-frequency filter and high-frequency module

A high-frequency filter includes a first terminal, a second terminal, a third terminal, a first inductor, a second inductor, a third inductor, and a fourth inductor. The first inductor and the second inductor are connected in series to each other between the first terminal and the second terminal. The third inductor and the fourth inductor are connected in parallel to each other between the third terminal and a node of the first inductor and the second inductor. The connection between the first inductor and the second inductor is an additive polarity connection. The connection between the third inductor and the fourth inductor is an additive polarity connection.

Coupled Resonator On-Die Filters for WiFi Applications

A radio frequency (RF) filter circuit for rejecting one or more spurious components of an input signal has a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor, and a second resonator circuit with a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor. First and second resonator coupling capacitors are connected to the first resonator circuit and the second resonator circuit. A first port and a second port are connected to the first resonator circuit and the second resonator, with the filtered signal of the input signal passed through both the first resonator circuit and the second resonator circuit being output. 111-. (canceled)12. A first filter stage cascaded to a second filter stage for use in a radio frequency filter circuit for rejecting one or more spurious components of an input signal , each of the filter stages including:a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor;a second resonator circuit including a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor;first and second resonator coupling capacitors each connected to the first resonator circuit and the second resonator circuit;a first port connected to the first filter stage; anda second port connected to the second filter stage, the input signal being connected to one of the first port and the second port, and a filtered signal of the input signal passed through the first resonator circuits and the second resonator circuits of both the first filter stage and the second filter stage being output from a other one of the first port and the second port.13. The radio frequency filter circuit of wherein the second resonator circuit of the first filter stage is connected to the first resonator circuit of the second filter stage.14. The radio frequency filter circuit of ...

An Integrated Isolator Circuit in a Time Division Duplex Transceiver

An integrated isolator circuit for isolating receiver and transmitter in a Time-Division Duplex transceiver is disclosed. The integrated isolator circuit comprises a first node, a second node and a third node. The integrated isolator circuit further comprises a first capacitor connected in series with a first switch and connected between the first and second nodes. The integrated isolator circuit further comprises a first inductor connected between the first and second nodes and a second capacitor connected between the second node and the third node. The first switch has an on state and an off state, and the integrated isolator circuit is configured to have a different impedance at a certain operating frequency by controlling the state of the first switch. 19-. (canceled)10. An integrated isolator circuit configured for isolating a receiver and a transmitter in a Time-Division Duplex transceiver , comprising:a first node, a second node and a third node;a first capacitor connected in series with a first switch and connected between the first and second nodes;a first inductor connected between the first and second nodes; anda second capacitor connected between the second node and the third node;wherein the first switch has an on state and an off state, and the integrated isolator circuit is configured to have a different impedance at a certain operating frequency by controlling the state of the first switch.11. The integrated isolator circuit according to claim 10 , wherein when the state of the first switch is on during transmitting mode claim 10 , the integrated isolator circuit is configured to have high impedance at the operating frequency claim 10 , and when the state of the first switch is off during receiving mode claim 10 , the integrated isolator circuit is configured to have low impedance at the operating frequency.12. The integrated isolator circuit according to claim 10 , further comprising a second switch connected in series with the second capacitor.13. ...

MUTUALLY INDUCED FILTERS

A mutually induced filter for filtering radio frequency (RF) power from signals supplied to a load is described. The mutually induced filter includes a first portion connected to a first load element of the load for filtering RF power from one of the signals supplied to the first load element. The load is associated with a pedestal of a plasma chamber. The mutually induced filter further includes a second portion connected to a second load element of the load for filtering RF power from another one of the signals supplied to the second load element. The first and second portions are twisted with each other to be mutually coupled with each other to further facilitate a coupling of a resonant frequency associated with the first portion to the second portion. 1. A mutually induced filter for filtering radio frequency (RF) power from signals supplied to a load , comprising:a first portion connected to a first load element of the load for filtering RF power from one of the signals supplied to the first load element, wherein the load is associated with a pedestal of a plasma chamber;a second portion connected to a second load element of the load for filtering RF power from another one of the signals supplied to the second load element,wherein the first and second portions are twisted with each other to be mutually coupled with each other to further facilitate a coupling of a resonant frequency associated with the first portion to the second portion.21. The mutually induced filter of system , wherein the first and second mutually portions include coextensively twisted inductors to define one unitary wound body.3. The mutually induced filter of claim 1 , wherein the first and second mutually portions are twisted with each other to facilitate a coupling of a resonant frequency associated with the second portion to the first portion.4. The mutually induced filter of claim 1 , wherein the first portion includes two or more inductors twisted with each other and one of the two ...

Band pass filter

A band pass filter includes a first filter circuit, a second filter circuit, a first intermediate circuit, a second intermediate circuit, and a ninth capacitor. The first intermediate circuit includes a seventh inductor connected between a fifth capacitor and a sixth capacitor. The second intermediate circuit includes an eighth inductor connected between a seventh capacitor and an eighth capacitor. The ninth capacitor is connected between the first intermediate circuit and the second intermediate circuit.

Radio frequency filtering circuitry

Radio frequency (RF) filtering circuitry includes an input node, an output node, a shunt node, a first bulk acoustic wave (BAW) resonator, a second BAW resonator, a first inductor, and a second inductor. The first BAW resonator is coupled between the input node and the output node. The second BAW resonator is coupled between an intermediate node and the shunt node. The first inductor is coupled between the input node and the intermediate node. The second inductor is coupled between the output node and the intermediate node.

MAINS FILTER FOR CONVERTER

A converter filter includes an inductor having a main winding and a winding element, and first and second absorption circuits coupled to the inductor. The first and second absorption circuits are decoupled from one another by an inductance of the winding element of the inductor. An auxiliary winding is coupled to the inductor and forms a 1:1 transformer with the winding element. The auxiliary winding is fed via the inductance of the winding element. The auxiliary winding and the second absorption circuit are each connected to an output of the winding element and the first absorption circuit is connected to the auxiliary winding. 16.-. (canceled)7. A converter filter , comprising:an inductor including a main winding and a winding element;first and second absorption circuits coupled to the inductor, said first and second absorption circuits being decoupled from one another by an inductance of the winding element of the inductor; andan auxiliary winding coupled to the inductor, said auxiliary winding forming a 1:1 transformer with the winding element and being fed via the inductance of the winding element, said auxiliary winding and said second absorption circuit being each connected to an output of the winding element, and said first absorption circuit being connected to the auxiliary winding.8. The converter filter of claim 7 , wherein the auxiliary winding is formed by rewinding a conductor from an output of the inductor.9. The converter filter of claim 7 , wherein the auxiliary winding is positioned in a winding space of the inductor so as to keep the auxiliary winding free for compliance with clearance and creepage distances between the winding and a core of the inductor.10. A circuit or an electrical device claim 7 , comprising a converter filter comprising an inductor including a main winding and a winding element claim 7 , first and second absorption circuits coupled to the inductor claim 7 , said first and second absorption circuits being decoupled from one ...

Transformer-type phase shifter, phase-shift circuit, and communication terminal apparatus

A transformer-type phase shifter or a phase-shift circuit includes a first coil and a second coil that is magnetically coupled to the first coil with a coupling coefficient of less than 1, a transformer including a parallel inductance component and a series inductance component, and an impedance adjustment circuit including a reactance element that performs impedance adjustment for the transformer, thus being advantageous in reducing the size, loss, and frequency dependency of the phase-shift amount.

HIGH QUALITY FACTOR TIME DELAY FILTERS USING MULTI-LAYER FRINGE CAPACITORS

A multilayer fringe capacitor includes first and second interdigitated capacitor electrodes, both parallel to and intersecting a first planar surface; third and fourth interdigitated capacitor electrodes, the first and second electrodes parallel to and separated by a non-zero distance from the third and fourth electrodes; a first set of coupling vias that electrically couples the first electrode to the third electrode; and a second set of coupling vias that electrically couples the second electrode to the fourth electrode. 2. The multilayer fringe capacitor of claim 1 , wherein capacitance resulting from coupling between the first and third electrodes and coupling between the second and fourth electrodes contributes less than one percent to the total capacitance.3. The multilayer fringe capacitor of claim 1 , wherein the first and second interdigitated capacitor electrodes are passivated without the use of solder stop or solder mask material.4. The multilayer fringe capacitor of claim 1 , wherein the multilayer fringe capacitor comprises first claim 1 , second claim 1 , and third layers; wherein the first layer comprises the third and fourth electrodes; wherein the second layer claim 1 , directly above the first layer claim 1 , comprises the first and second sets of coupling vias; wherein the third layer claim 1 , directly above the second layer claim 1 , comprises the first and second electrodes; wherein the multilayer fringe capacitor further comprises a fourth layer claim 1 , directly above the third layer claim 1 , the fourth layer comprising an insulative material covering the first and second electrodes; wherein the multilayer fringe capacitor further comprises a fifth layer claim 1 , the fifth layer comprising an auxiliary electrode.5. The multilayer fringe capacitor of claim 4 , wherein structure of the auxiliary electrode is defined by a removal of material; wherein the removal of material is simultaneous or in iteration with capacitance measurements of the ...

FILTER HAVING AN ESD PROTECTION DEVICE

A filter that includes a series circuit of a first Zener diode and a second Zener diode, a third Zener diode connected between a node and ground, and a third inductor. A first series resonant circuit is formed by a parasitic capacitance of the first Zener diode, a parasitic capacitance of the third Zener diode, and the third inductor, and a second series resonant circuit is formed by a parasitic capacitance of the second Zener diode, the parasitic capacitance of the third Zener diode, and the third inductor. Moreover, the parasitic capacitances of the first Zener diode and the second Zener diode are substantially equal, and the parasitic capacitance of the third Zener diode is larger than the parasitic capacitance of each of the first Zener diode and the second Zener diode. 1. A filter comprising:a differential transmission line that includes first and second signal lines;a common mode choke coil including a first inductor in the first signal line and a second inductor in in the second signal line and magnetically coupled to the first inductor; and a series circuit having first and second ESD protection devices connected between the first and second signal lines, a third ESD protection device connected between a ground and a node between the first and second ESD protection devices, and a third inductor connected in series to the third ESD protection device,', 'wherein the third inductor and parasitic capacitances of the first and third ESD protection devices form a first series resonant circuit, and the third inductor and parasitic capacitances of the second and third ESD protection devices form a second series resonant circuit, and', 'wherein the parasitic capacitance of the third ESD protection device is greater than the parasitic capacitance of the first ESD protection device and the parasitic capacitance of the second ESD protection device., 'an ESD protection circuit including2. The filter according to claim 1 , wherein the differential transmission line is ...

CONDUCTIVE PATH WITH NOISE FILTER

A conductive path includes a plurality of covered electrical conductors that are obtained by enveloping a plurality of conductive path main bodies with insulating layers; a plurality of conductors that are individually fixed to outer circumferential surfaces of the insulating layers, capacitors being formed individually between the conductors and the conductive path main bodies; a body having a holder; a plurality of arc-shaped positioning recesses that are formed in the holder and are configured to respectively keep the plurality of covered electrical conductors positioned; a plurality of inductors that are respectively connected to the plurality of conductors and are fixed to the body; and a connector that is formed on the inductors, is exposed in an arc shape on an inner circumferential surface of the positioning recesses, and comes into contact with the conductors in a state in which the covered electrical conductors are held in the positioning recesses. 1. A conductive path with noise filter , the conductive path comprising:a plurality of covered electrical conductors that are obtained by enveloping a plurality of conductive path main bodies with insulating layers;a plurality of conductors that are individually fixed to outer circumferential surfaces of the insulating layers, capacitors being formed individually between the conductors and the conductive path main bodies;a body having a holder;a plurality of arc-shaped positioning recesses that are formed in the holder and are configured to respectively keep the plurality of covered electrical conductors positioned;a plurality of inductors that are respectively connected to the plurality of conductors and are fixed to the body; anda connector that is formed on the inductors, is exposed in an arc shape on an inner circumferential surface of the positioning recesses, and comes into contact with the conductors in a state in which the covered electrical conductors are held in the positioning recesses.23-. (canceled) ...

TRANSFORMER FILTER ARRANGEMENT

A transformer filter arrangement including a transformer having a first winding and a second winding is provided. Both of the first and the second windings are located between an outer border and an inner border, which is inside the outer border. The transformer filter arrangement further includes at least one reactive sub circuit, each including at least one inductor. The first winding of the transformer is divided into a plurality of winding segments. At least a first one of the at least one reactive sub circuit being connected in series with the winding segments of the first winding between two such winding segments, and having at least one of the at least one inductor located inside said inner border. 1. A transformer filter arrangement , comprising:a transformer having a first winding and a second winding formed by conducting and isolation layers of one of a chip and printed circuit board, winding loops of both the first and the second windings, when considered in a plane of the first winding and the second winding of the transformer, enclose an area of the one of said chip and printed circuit board; andat least one reactive sub circuit, each comprising at least one Pinductor;the first winding of the transformer is divided into a plurality of winding segments; being connected in series with the winding segments of the first winding between two such winding segments; and', 'having at least one of the at least one inductor located in said area; and, 'at least a first one of the at least one reactive sub circuitthe transformer and the at least one reactive sub circuit being tuned such that the transformer filter arrangement is configured to pass signals at a fundamental frequency and to suppress signals at least at one interfering frequency.2. The transformer filter arrangement of claim 1 , wherein each inductor of said at least first one of the at least one reactive sub circuit is located in said area.3. The transformer filter arrangement of claim 1 , wherein ...

MULTILAYER BALUN

A multilayer balun includes first, second, and third terminals, first and second inductors, and an open line conductor. The first inductor is electrically connected between the first terminal and ground points. The second inductor is electrically connected between the second terminal and the third terminal and is magnetically coupled with the first inductor. The open line conductor has one end that is an open end and another end that is electrically connected to a via conductor pattern, which is a signal path between the first terminal and ground points. 1. A multilayer balun comprising:a plurality of dielectric layers that are stacked in a stacking direction;a first terminal to receive an unbalanced signal;second and third terminals to receive balanced signals;a first inductor that is electrically connected between the first terminal and a ground point;a second inductor that is electrically connected between the second terminal and the third terminal and is magnetically coupled with the first inductor; andan open line conductor that has one end that is an open end and another end that is electrically connected to a signal path between the first terminal and the ground point.2. The multilayer balun according to claim 1 , whereinthe first inductor and the open line conductor wind around an axis that extends in the stacking direction; andthe open line conductor faces the first inductor in the stacking direction.3. The multilayer balun according to claim 1 , further comprising:a first capacitor that is electrically connected in parallel with the first inductor; anda second capacitor that is electrically connected in parallel with the second inductor.4. The multilayer balun according to claim 1 , whereinthe plurality of dielectric layers include a first inductor layer on which the first inductor is provided, a second inductor layer on which the second inductor is provided, and a conductor layer on which the open line conductor is provided; andthe conductor layer is ...

Balun

A balun includes first, second, and third terminals, first, second, and third inductors, and a capacitor. The first and second inductors are electrically connected in series with each other between the first terminal and a ground point. The capacitor is electrically connected in series with the first inductor between the first terminal and the ground point. The capacitor is electrically connected in parallel with the second inductor between the first inductor and the ground point. The third inductor is electrically connected between the second terminal and the third terminal. The third inductor is magnetically coupled with at least the first inductor.

COMMON-MODE SIGNAL ABSORBER AND EQUIVALENT CIRCUIT THEREOF

The present invention provides a common-mode signal absorber, which comprises an impedance-matching network and a common-mode signal reflection circuit. A differential-mode signal is inputted into input ends of the impedance-matching network, and outputted from output ends of the common-mode signal reflection circuit. When a common-mode signal is inputted into the common-mode signal absorber, the common-mode signal reflection circuit is for reflecting the common-mode signal within a specific frequency band. Afterward, the reflection of the common-mode signal within the specific frequency band will be absorbed by an impedance element of the impedance-matching network. Thus, the common-mode signal within the specific frequency band may be absorbed by the impedance-matching network so as to avoid to interfere signals transmitted on a communication system. 1. A common-mode signal absorber , comprising:a first impedance-matching network comprising a first impedance unit; anda common-mode signal reflection circuit connected to the first impedance-matching network, wherein a differential-mode signal is inputted into the first impedance-matching network, and outputted from the common-mode signal reflection circuit, and the common-mode signal reflection circuit is used to reflect a common-mode signal within a specific frequency band when the common-mode signal enters the common-mode signal absorber;wherein the first impedance-matching network is impedance matched to the common-mode signal within the specific frequency band, the first impedance unit of the first impedance-matching network is used to absorb the common-mode signal within the specific frequency band when the common-mode signal within the specific frequency band enters the first impedance-matching network.2. The common-mode signal absorber according to claim 1 , wherein with regard to the common-mode signal claim 1 , an absolute value of a reflection coefficient for input ends of the common-mode signal reflection ...

STACK TYPE COMMON MODE FILTER FOR HIGH FREQUENCY

A stack type common mode filter (CMF) for high frequency may improve high frequency characteristics, like removing an impedance difference between terminals by not overlapping terminal portions of multiple stack structures with upper and lower magnetic substances, and removing noise in a common mode and removing a signal distortion in a differential mode by removing an unnecessary parasitic impedance from terminal portions, and thus the stack type CMF for high frequency may be applicable at a high frequency compared to a conventional CMF. 1. A stack type common mode filter (CMF) for high frequency comprising a main body comprising an upper magnetic substance , a lower magnetic substance , and a stack structure disposed between the upper magnetic substance and the lower magnetic substance , and external electrodes formed on side surfaces of the main body ,wherein the stack structure is formed by stacking a pair of unit stack structures of a first non-magnetic substance in which coil elements and leads electrically connecting the coil elements to the external electrodes are formed and a second non-magnetic substance on which only leads electrically connected to the external electrodes are formed and electrically connected to the first non-magnetic substance, andwherein terminal portions formed in outer ends of the leads do not overlap with the upper magnetic substance and the lower magnetic substance.2. The stack type CMF for high frequency of claim 1 , wherein a terminal portion of one of the unit stack structures is formed to be bent from the leads claim 1 , and another terminal portion is formed to straightly extend from the leads.3. The stack type CMF for high frequency of claim 1 , wherein terminal portions of the unit stack structures are formed to be bent from the leads in opposite directions.4. The stack type CMF for high frequency of claim 1 , wherein both edges of the upper and lower magnetic substances are positioned to be offset inwardly compared to both ...

Common mode filter and electronic device including the same

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

Wireless circuit-mounted electronic apparatus

A signal transmission and reception element transmits and receives a differential signal. Two transmission lines transmit the differential signal between the signal transmission and reception element and a connector. The signal transmission and reception element is connected to an external apparatus with the connector interposed therebetween. A noise generation source generates noise in a wireless band, which is coupled to the transmission lines. An antenna has a gain in a frequency band of the noise which is generated in the noise generation source. A wireless signal processing circuit processes a signal received by the antenna. An absorption-type filter that is mounted on the transmission lines absorbs noise mixed in the transmission lines.

CONDUCTIVE PATH WITH NOISE FILTER

Workability during the connection of inductors is improved. A conductive path (A) with noise filter includes a plurality of conductive path main bodies (), a plurality of insulating layers () that surround respective outer circumferences of the conductive path main bodies (), a plurality of conductors () that are provided with the insulating layers () being sandwiched between the conductors () and the conductive path main bodies () and form respective capacitors (), a plurality of inductors () that are connected to the respective conductors (), and an electrical connection member () including a plurality of fitting portions () into which the respective inductors () can be fitted. 1. A conductive path with noise filter comprising:a plurality of conductive path main bodies;a plurality of insulating layers that surround respective outer circumferences of the conductive path main bodies;a plurality of conductors that are provided with the insulating layers being sandwiched between the conductors and the conductive path main bodies and form respective capacitors;a plurality of inductors that are connected to the respective conductors; andan electrical connector that includes a plurality of fitting portions into which the respective inductors can be fitted and that is attached to an electrical connection holder,wherein each of the inductors includes a connection conductor that can be fitted into a respective fitting portion of the plurality of fitting portions, and a magnetic core that surrounds the connection conductor in a state in which the magnetic core is attached to the electrical connection holder, andthe connection conductor and the conductor can be held by a connection holder in a state in which the connection conductor and the conductor are connected.23-. (canceled)4. The conductive path with noise filter according to claim 1 , comprising a holder that is formed in the connection holder and that can hold the connection conductor claim 1 , the conductor claim 1 , ...

Apparatus and methods for tunable filters

Apparatus and methods for tunable filters are provided. In certain configurations, a tunable filter includes a semiconductor die attached to a laminated substrate, such as a substrate of a multi-chip module (MCM). The tunable filter includes a vector inductor implemented using two or more conductors arranged on different conductive layers of the laminated substrate. The vector inductor's conductors are inductively coupled to one another and electrically connected in parallel to provide the vector inductor with high quality factor (Q-factor). The semiconductor die includes a variable capacitor that is electrically connected with the vector inductor to operate as a tunable resonator. Additionally, a frequency characteristic of the tunable filter, such as a passband, can be controlled by selecting a capacitance value of the variable capacitor, thereby tuning a resonance of the resonator.

QUADRATURE HYBRID WITH MULTI-LAYER STRUCTURE

The disclosure provides a quadrature hybrid. The quadrature hybrid has a first, second, third and fourth ports. The quadrature hybrid comprises: a substrate having a plurality of dielectric layers; a first, second and third capacitors, each capacitor having a first predetermined number of layers each being arranged on one of the plurality of dielectric layers; and a first, second, third and fourth inductors, each inductor having a second predetermined number of layers each being arranged on one of the plurality of dielectric layers. 2. The quadrature hybrid of claim 1 , whereinthe first and second terminal leads of each inductor are arranged in a first direction, andthe first and second terminal leads of each capacitor are arranged in a second direction orthogonal to the first direction.3. The quadrature hybrid of claim 1 , wherein projections of the first claim 1 , second and third capacitors on a surface of the substrate are squares having a same first size claim 1 , the first and second terminal leads of each capacitor extending from a pair of opposite sides of the square on which the capacitor is projected claim 1 , respectively.4. The quadrature hybrid of claim 1 , wherein projections of the first claim 1 , second claim 1 , third and fourth inductors on a surface of the substrate are squares having a same second size claim 1 , the first and second terminal leads of each inductor extending from a pair of opposite sides of the square on which the inductor is projected claim 1 , respectively.5. The quadrature hybrid of claim 1 , wherein each capacitor is a vertically-interdigital-capacitor.6. The quadrature hybrid of claim 1 , wherein each inductor is a spiral inductor.7. The quadrature hybrid of claim 1 , wherein each layer of the substrate is made of Low Temperature Co-fired Ceramic (LTCC) material. The disclosure relates to microwave circuit, and more particularly, to a quadrature hybrid with a multi-layer structure.Recently, electronic devices are evolving ...

IMPEDANCE MATCHING CIRCUIT OF COMMUNICATION APPARATUS

A matching circuit in a communication apparatus may comprise a first inductor disposed at a primary side of a transformer; a second inductor disposed at a secondary side of the transformer; and an impedance element connected to the first inductor and the second inductor. Also, a first terminal of the first inductor may be connected to an input terminal of the transformer, a second terminal of the first inductor may be connected to a common node connected to a ground, a first terminal of the second inductor may be connected to an output terminal of the transformer, a second terminal of the second inductor may be connected to the common node, a first terminal of the impedance element may be connected to the common node, and a second terminal of the impedance element may be connected to the ground. 1. A matching circuit in a communication apparatus , comprising:a first inductor disposed at a primary side of a transformer;a second inductor disposed at a secondary side of the transformer; andan impedance element connected to the first inductor and the second inductor,wherein a first terminal of the first inductor is connected to an input terminal of the transformer, a second terminal of the first inductor is connected to a common node connected to a ground, a first terminal of the second inductor is connected to an output terminal of the transformer, a second terminal of the second inductor is connected to the common node, a first terminal of the impedance element is connected to the common node, and a second terminal of the impedance element is connected to the ground.2. The matching circuit according to claim 1 , wherein magnetic fluxes of the first inductor and the second inductor are formed in a same direction so as to form a positive mutual inductance.3. The matching circuit according to claim 2 , wherein the impedance element is a third inductor claim 2 , and the third inductor boosts the positive mutual inductance.4. The matching circuit according to claim 2 , ...

Low pass filter

A low pass filter includes a first via-hole conductor connected to a first end portion of a first inductor and a third end portion of a second inductor and extending to another side in a lamination direction with respect to a second end portion of the first inductor and a fourth end portion of the second inductor, and a first capacitor electrically connected in parallel with at least a portion of the first inductor and a portion of the second inductor and defined by a first capacitor conductor layer. The low pass filter allows the interval between attenuation poles to be easily adjusted.

INDUCTOR, FILTER, AND MULTIPLEXER

An inductor includes: a substrate; a first wiring line located on the substrate; a second wiring line located above the first wiring line and spaced from the first wiring line through an air gap, at least a part of the second wiring line overlapping with at least a part of the first wiring line in plan view; a first supporting post connecting ends of the first and second wiring lines such that a direct current conducts between the first and second wiring lines through the first supporting post; and a second supporting post provided such that the second supporting post overlaps with the second wiring line in plan view, and overlaps with the first wiring line in plan view or is surrounded by the first wiring line in plan view, the second supporting post being insulated from the first wiring line, the second supporting post supporting the second wiring line. 1. An inductor comprising:a substrate;a first wiring line located on the substrate;a second wiring line located above the first wiring line and spaced from the first wiring line through an air gap, at least a part of the second wiring line overlapping with at least a part of the first wiring line in plan view;a first supporting post connecting an end of the first wiring line and an end of the second wiring line such that a direct current conducts between the first wiring line and the second wiring line through the first supporting post; anda second supporting post provided such that the second supporting post overlaps with the second wiring line in plan view, and overlaps with the first wiring line in plan view or is surrounded by the first wiring line in plan view, the second supporting post being insulated from the first wiring line, the second supporting post supporting the second wiring line.2. The inductor according to claim 1 , whereinthe first wiring line and the second wiring line have a coil shape surrounding a center region.3. The inductor according to claim 1 , whereinthe second supporting post does not ...

Apparatuses, methods, and systems with cross-coupling noise reduction

Embodiments include apparatuses, methods, and systems with cross-coupling noise reduction in circuits. In embodiments, a circuit may include a common inductor and a negatively coupled inductor pair connected or coupled between the first inductor and a first load and a second load. The negatively coupled inductor pair may include a first and a second inductor. The first inductor may be connected or coupled to the first load and the second inductor may be connected or coupled to the second load to reduce cross-coupling noise between the first load and the second load. Examples of passive structures that may be used to implement the circuit are also described. Other embodiments may also be described and claimed.

Rf replicator for accurate modulated amplitude and phase measurement

The disclosure provides a communication circuit including an amplification circuit, a replicator circuit, and a correction circuit. Specifically, the amplification circuit generates an amplified signal. The replicator circuit emulates the amplification circuit and generates a replicated signal that approximates the amplified signal. The replicated signal is used by the correction circuit to generate control signals for controlling the amplification circuit.

Device for emc filtering on a printed circuit

An EMC filtering device comprises a printed circuit comprising at least two parallel layers of a high-permittivity material, which are positioned between two layers of an insulating material that are parallel to one another and to the high-permittivity material layers. A core made of a magnetic material comprises three cylindrical arms passing perpendicularly through the high-permittivity and insulating material layers. At least two windings winding around the first arm of the magnetic material core, the windings and the first arm forming a first coil. At least two windings winding around the second arm of the magnetic material core, the windings and the second arm forming a second coil. The two coils being coupled coils.

Weakly coupled based harmonic rejection filter for feedback linearization power amplifier

Radio frequency (RF) filters configured to filter undesired signal components (e.g., noise and harmonics) from RF signals are disclosed. In one embodiment, an RF filter includes a first inductor coil having a first winding and a second inductor coil having a second winding and a third winding. The second winding of the second inductor coil is configured to have a first mutual magnetic coupling with the first winding, while the third winding of the second inductor coil is configured to have a second mutual magnetic coupling with the first winding. The second winding is connected to the third winding such that the first mutual magnetic coupling and the second mutual magnetic coupling are in opposition. In this manner, the first inductor coil and the second inductor coil may be provided in a compact arrangement while providing weak mutual magnetic coupling between the first inductor coil and the second inductor coil.

CHOKE AND EMI FILTER WITH THE SAME

A choke for an EMI filter is provided. The EMI filter includes a first filtering circuit and a second filtering circuit. The choke includes a magnetic core assembly and four winding coils. The magnetic core assembly includes a first magnetic core and a second magnetic core. The first winding coil and the second winding coil are directly wound around the first magnetic core. The third winding coil and the fourth winding coil are directly wound around the second magnetic core. The first winding coil is serially connected with a first positive path of the first filtering circuit. The second winding coil is serially connected with a second positive path of the second filtering circuit. The third winding coil is serially connected with a first negative path of the first filtering circuit. The fourth winding coil is serially connected with a second negative path of the second filtering circuit. 1. A choke for an EMI filter , the EMI filter comprising a first filtering circuit for receiving a first input power and a second filtering circuit for receiving a second input power , the choke comprising:a magnetic core assembly comprising a first magnetic core and a second magnetic core;a first winding coil and a second winding coil directly wound around the first magnetic core; anda third winding coil and a fourth winding coil directly wound around the second magnetic core,wherein the first winding coil is serially connected with a first positive path of the first filtering circuit, the second winding coil is serially connected with a second positive path of the second filtering circuit, the third winding coil is serially connected with a first negative path of the first filtering circuit, and the fourth winding coil is serially connected with a second negative path of the second filtering circuit.2. The choke according to claim 1 , wherein the first input power is received and transmitted by the first positive path and the first negative path of the first filtering circuit ...

Coupling loop circuit, noise filter circuit, and circuit generation method

A coupling loop circuit is constructed in such a way that a sixth conductor is made to three-dimensionally cross a second conductor, an eighth conductor is made to three-dimensionally cross each of the second conductor and a fourth conductor, a first loop area and a second loop area spatially overlap each other, and an overlapping area between the first loop area and the second loop area is formed by the second conductor, the fourth conductor, the sixth conductor, and the eighth conductor.

CONDUCTIVE PATH WITH NOISE FILTER

A conductive path with noise filter that enables an efficient reduction in a surge noise in a specific frequency band is provided. A conductive path with noise filter includes a conductive path main body, V-phase wire, W-phase wire, a coil-shaped inductor, V-phase inductor, W-phase inductor surrounding the conductive path main body, V-phase wire, W-phase wire, and a capacitor, V-phase capacitor, W-phase capacitor arranged between the conductive path main body, V-phase wire, W-phase wire and the inductor, V-phase inductor, W-phase inductor. 1. A conductive path with noise filter comprising:three conductive path main bodies constituting a three-phase AC circuit;three coil-shaped inductors respectively surrounding the three conductive path main bodies; andthree capacitors respectively arranged between the three conductive path main bodies and the three inductors, and respectively connected to the three inductors,wherein the three capacitors are mutually connected via the inductors,the three capacitors are connected to only the inductors, andeach of the inductors is connected to only one or two of the three capacitors and at least one of the remaining two inductors.2. The conductive path with noise filter according to claim 1 ,wherein a plurality of the conductive path main bodies are arranged in parallel,the plurality of the conductive path main bodies are each provided with the inductor, andthe inductor is a conductive wire coated with an insulating layer.3. The conductive path with noise filter according to claim 2 , wherein the conductive wire is a metal single-core wire.4. (canceled)5. (canceled)6. The conductive path with noise filter according to claim 1 ,wherein a tubular shielding layer surrounds a plurality of the conductive path main bodies and the inductors all together, andthe capacitor is arranged inside a shielded space surrounded by the shielding layer.7. The conductive path with noise filter according to claim 1 ,wherein the capacitor includes:the ...

MULTILAYER BAND PASS FILTER

A multilayer band pass filter includes a first LC parallel resonator electrically connected to a first input/output terminal, a second LC parallel resonator electrically connected to a second input/output terminal, and a third LC parallel resonator is magnetically coupled to the first LC parallel resonator. The first LC parallel resonator includes a first inductor. The second LC parallel resonator includes a second inductor. The third LC parallel resonator is magnetically coupled to the second LC parallel resonator. A bypass connects the first inductor and the second inductor to each other. 1. A multilayer band pass filter comprising:a plurality of dielectric layers stacked in a stacking direction;first and second terminals;a first LC parallel resonator that is electrically connected to the first terminal;a second LC parallel resonator that is electrically connected to the second terminal;a third LC parallel resonator that is magnetically coupled to the first LC parallel resonator and is magnetically coupled to the second LC parallel resonator; anda bypass; whereinthe first LC parallel resonator includes a first inductor;the second LC parallel resonator includes a second inductor;the bypass connects the first inductor and the second inductor to each other;a first connection point between the first inductor and the bypass is located between one end and another end of the first inductor; anda second connection point between the second inductor and the bypass is located between one end and another end of the second inductor.2. The multilayer band pass filter according to claim 1 , whereinthe plurality of dielectric layers includes a first dielectric layer on which a ground conductor pattern is provided;the first inductor includes a first via conductor pattern that extends in the stacking direction;the second inductor includes a second via conductor pattern that extends in the stacking direction;the first and second via conductor patterns are connected to the ground ...

INVERTER SYSTEM WITH MINIMUM OUTPUT FILTER

In one aspect, a power converter may include a plurality of inductor banks; a plurality of capacitor banks; an intermediate bus capacitor bank; a plurality of switches, each switch has a first power node and a second power node, and one control node that receives a control signal that maintains the switch in either ON state in which the circuit path between the first node and the second node are established, or OFF state in which the circuit path between the first node and the second node are eliminated; and a control logic that generates a plurality of signal combinations that are applied to the control nodes of said plurality of switches to enable the power converter to have a smooth voltage output and enhanced tolerance for a low voltage input bus for all signal combinations. 1. A power converter comprising:a plurality of inductor banks;a plurality of capacitor banks;an intermediate bus capacitor bank;a plurality of switches, each switch has a first power node and a second power node, and one control node that receives a control signal that maintains the switch in either ON state in which the circuit path between the first node and the second node are established, or OFF state in which the circuit path between the first node and the second node are eliminated; anda control logic that generates a plurality of signal combinations that are applied to the control nodes of said plurality of switches to enable the power converter to have a smooth voltage output and enhanced tolerance for a low voltage input bus for all signal combinations.2. The power converter of claim 1 , wherein each inductor bank includes at least one inductor that have two nodes that are connected to respective circuit nodes in a circuit claim 1 , and each capacitor bank includes at least one capacitor that have two nodes that are connected to respective circuit nodes in a circuit.3. The power converter of claim 1 , wherein each first power node and each second power node of each switch is ...

Method of reducing power dissipation in a clock distribution network for integrated circuit

A method and circuit are provided to reduce power consumption of high-speed clocks that are distributed across an integrated circuit (IC). Example implementations seek to reduce the amount of power dissipated in typical clock distribution networks by turning the combination of a multi-port electrical network and transmission line into a multi-resonant structure. In an implementation, the multi-port electrical network is coupled between first and second segments of the transmission line. The multi-port electrical network includes series and shunt reactive circuit elements, such as series inductive reactance and a shunt inductive susceptance, configured to produce first and second resonances that cooperate to create a bandpass response across clock distribution frequencies. This bandpass response is created by the multi-resonant structure, which is a combination of the transmission line and the multi-port electrical network. Various implementations are provided, including single-ended, differential, multi-section, multi-output, and point-to-multi-point implementations, each with an optional low-speed mode switch.

Frequency-variable lc filter and high-frequency front end circuit

A first series arm LC filter circuit includes a capacitor and an inductor connected in series to provide a series circuit between a first connection terminal and a second connection terminal, a capacitor connected in parallel to the series circuit, and an inductor and a variable capacitor connected in parallel between a connection point of the capacitor and the inductor and a ground potential. A first parallel arm LC filter circuit is connected between the first connection terminal and the ground potential. A second parallel arm LC filter circuit is connected between the second connection terminal and the ground potential. The inductor is directly connected to the second connection terminal or is connected to the second connection terminal with another inductor interposed therebetween.

Radio frequency delay line

According to an embodiment, a radio frequency delay line is described comprising a first conductor comprising a plurality of first inductors, a second conductor comprising a plurality of second inductors, wherein each of the plurality first inductors corresponds to a respective one of the plurality of second inductors and a plurality of inductor pairs, each inductor pair comprising a first inductor and the corresponding second inductor. For each of the plurality of inductor pairs, the first inductor and the corresponding second inductor are arranged so that an inductor area of the first inductor overlaps with an inductor area of the corresponding second inductor.

NOISE FILTER CIRCUIT

An input loop line () is disposed in a region inside or outside the loop of an output loop line () as viewed in the thickness direction of a dielectric layer (). 1. A noise filter circuit comprising:a dielectric layer having one side on which an input line, an input loop line, a capacitor connection line, and an output line are formed, the input line, the input loop line, and the capacitor connection line being connected in series in this order, and having another side on which an output loop line connected between the capacitor connection line and the output line and a ground conductor surrounding the output loop line are formed; anda capacitor having one end connected to the capacitor connection line and another end connected to the ground conductor,wherein a winding direction of the input loop line from the input line to the capacitor connection line is same as a winding direction of the output loop line from the capacitor connection line to the output line, andthe input loop line is disposed in a region inside or outside the output loop line as viewed in a thickness direction of the dielectric layer.2. The noise filter circuit according to claim 1 ,wherein each of the input loop line and the output loop line has a partially opened rectangular loop shape.3. The noise filter circuit according to claim 1 ,wherein each of the input loop line and the output loop line has a partially opened circular loop shape.4. A noise filter circuit comprising:a dielectric layer having one side on which an input line, an input loop line, a capacitor connection line, and an output line are formed, the input line, the input loop line, and the capacitor connection line being connected in series in this order, and having another side on which an output loop line connected between the capacitor connection line and the output line and a ground conductor surrounding the output loop line are formed; anda capacitor having one end connected to the capacitor connection line and another end ...