公开(公告)号：US20150214915A1

公开(公告)日：2015-07-30

申请号：US14681225

申请日：2015-04-08

申请人： Murata Manufacturing Co., Ltd.

发明人： Kuniaki YOSUI ,  Noboru KATO ,  Hisashi AKIYAMA

IPC分类号： H03H7/01

CPC分类号： H03H7/0115 ,  H01P1/20 ,  H03H7/09 ,  H03H7/1725 ,  H03H7/1733 ,  H03H7/1758 ,  H03H7/1775 ,  H03H7/1783 ,  H03H7/427 ,  H03H2001/0085

摘要： A common mode filter includes, between ports, a differential transmission line including a first signal line and a second signal line. The first signal line includes a first inductor arranged in series, and the second signal line includes a second inductor arranged in series. In addition, a first resonant circuit is provided between the first end of the first inductor and the ground, and a second resonant circuit is provided between the first end of the second inductor and the ground.

摘要翻译： 共模滤波器在端口之间包括包括第一信号线和第二信号线的差分传输线。 第一信号线包括串联布置的第一电感器，第二信号线包括串联布置的第二电感器。 此外，第一谐振电路设置在第一电感器的第一端和地之间，第二谐振电路设置在第二电感器的第一端和地之间。

公开(公告)号：US09035724B2

公开(公告)日：2015-05-19

申请号：US13864360

申请日：2013-04-17

申请人： Murata Manufacturing Co., Ltd.

发明人： Mitsutoshi Imamura

IPC分类号： H03H7/01 ,  H03H7/09 ,  H01P1/203 ,  H03H1/00

CPC分类号： H03H7/0115 ,  H01P1/20345 ,  H03H7/09 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1775 ,  H03H7/1791 ,  H03H2001/0085

摘要： 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.

摘要翻译： 在多层带通滤波器中，通孔电极和带状电极分四个阶段定义LC并联谐振器的电感器。 电容器电极和接地电极限定了第一级LC并联谐振器的电容器。 电容器电极和接地电极限定了第四级LC并联谐振器的电容器。 电容器电极定义了第二级LC并联谐振器。 电容器电极定义第三级LC并联谐振器。 在四个或更多个LC并联谐振器中，容易限定某些LC并联谐振器之间的耦合，并且可以高度自由地定义滤波器的衰减特性。

公开(公告)号：US20130328642A1

公开(公告)日：2013-12-12

申请号：US13879885

申请日：2010-10-18

申请人： Kai Xue Ma ,  Shouxian Mou ,  Kiat Seng Yeo

发明人： Kai Xue Ma ,  Shouxian Mou ,  Kiat Seng Yeo

IPC分类号： H03H7/01

CPC分类号： H03H7/0138 ,  H03H7/09 ,  H03H7/1725 ,  H03H7/1791 ,  H03H2001/0064 ,  H03H2001/0078

摘要： A low pass filter circuit (100) structure is provided. The low pass filter circuit structure includes first and second dominant inductor (114, 116)s, a first capacitor (120) and first and second shunt capacitors (122, 124). The first dominant inductor has a first end and a second end and the second dominant inductor has a first end and a second end. The second end of the first dominant inductor is electrically connected to the second end of the second dominant inductor. The first capacitor is electrically coupled between the first end of the first dominant inductor and the first end of the second dominant inductor. The first shunt capacitor is electrically coupled between the first end of the first dominant inductor and a ground potential, and the second shunt capacitor is electrically coupled between the first end of the second dominant inductor and the group potential. The first dominant inductor and the second dominant inductor are further coupled by one or both of magnetic coupling and parasitic mutual capacitive coupling.

摘要翻译： 提供了低通滤波器电路（100）结构。 低通滤波器电路结构包括第一和第二主电感器（114,116），第一电容器（120）和第一和第二并联电容器（122,124）。 第一主电感器具有第一端和第二端，而第二主电感具有第一端和第二端。 第一主电感器的第二端电连接到第二主电感器的第二端。 第一电容器电耦合在第一主电感器的第一端和第二主电感器的第一端之间。 第一并联电容器电耦合在第一主电感器的第一端和接地电位之间，并且第二并联电容器电耦合在第二主导电感器的第一端和组电位之间。 第一主电感器和第二主电感器进一步通过磁耦合和寄生互电容耦合中的一个或两个耦合。

公开(公告)号：US08581676B2

公开(公告)日：2013-11-12

申请号：US12770009

申请日：2010-04-29

申请人： Fabrice Guitton ,  Benjamin Thon

发明人： Fabrice Guitton ,  Benjamin Thon

IPC分类号： H03H7/00

CPC分类号： H01P1/2007 ,  H03H7/0107 ,  H03H7/1725 ,  H03H7/1758 ,  H03H7/427

摘要： A common-mode filter including two input terminals and two output terminals and, in series between each input or output terminal and the ground, a capacitive element and a first inductive element.

摘要翻译： 共模滤波器包括两个输入端和两个输出端，并且串联在每个输入或输出端与地之间，是电容元件和第一电感元件。

公开(公告)号：US20120326774A1

公开(公告)日：2012-12-27

申请号：US13535001

申请日：2012-06-27

申请人： Satoshi HATSUKAWA ,  Nobuo SHIGA ,  Kazuhiro FUJIKAWA ,  Takashi OHIRA ,  Kazuyuki WADA ,  Tuya WUREN ,  Kazuya ISHIOKA ,  Kazushi SAWADA ,  Hiroshi Ishioka

发明人： Satoshi HATSUKAWA ,  Nobuo SHIGA ,  Kazuhiro FUJIKAWA ,  Takashi OHIRA ,  Kazuyuki WADA ,  Tuya WUREN ,  Kazuya ISHIOKA ,  Kazushi SAWADA ,  Hiroshi Ishioka

IPC分类号： H03H11/04

CPC分类号： H03K17/162 ,  H03F3/2171 ,  H03F3/2176 ,  H03F2200/507 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1775 ,  H03H7/1783 ,  H03H7/1791 ,  H03K2217/0036 ,  H03K2217/009

摘要： A switching circuit according to one embodiment includes: a switching element that has a first terminal and a second terminal, and is driven by a pulse signal to switch a conduction state between the first and second terminals; a power source section that supplies a voltage to the first terminal; a load circuit that is connected in parallel with the power source section; a passive circuit section that is connected between a connection point between the power source section and the load circuit, and the first terminal, and suppresses a current flowing from the connection point to the switching element at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse signal; and a resonant circuit section that is connected between the passive circuit section and the connection point, and resonates at the frequency of N times.

摘要翻译： 根据一个实施例的开关电路包括：开关元件，其具有第一端子和第二端子，并且由脉冲信号驱动以在第一和第二端子之间切换导通状态; 电源部，其向所述第一端子供给电压; 与电源部并联连接的负载电路; 连接在电源部和负载电路之间的连接点与第一端子之间的无源电路部，并且抑制从连接点向开关元件流过N次的电流（N为整数 1或更高）与脉冲信号的时钟频率一样高; 以及连接在无源电路部分和连接点之间并以N次频率谐振的谐振电路部分。

公开(公告)号：US20120098620A1

公开(公告)日：2012-04-26

申请号：US13251283

申请日：2011-10-02

申请人： Shih-Hsien Tseng

发明人： Shih-Hsien Tseng

IPC分类号： H03H7/01

CPC分类号： H03H7/0115 ,  H03H7/09 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1758 ,  H03H7/1775 ,  H03H7/38 ,  H03H7/463 ,  H03H2001/0085

摘要： A filter and a layout structure of the filter are provided. The filter includes a substrate, three capacitors, and three inductors. The three capacitors and the first and second inductors are disposed on a top surface of the substrate. The third inductor is disposed on a lateral surface of the substrate. First electrodes of the first and third capacitors and a first terminal of the first inductor are connected to a first I/O terminal of the filter. A first electrode of the second capacitor, a second electrode of the third capacitor and a first terminal of the second inductor are connected to a second I/O terminal of the filter. A first terminal of the third inductor is connected to second electrodes of the first and second capacitors.

摘要翻译： 提供过滤器和过滤器的布局结构。 滤波器包括衬底，三个电容器和三个电感器。 三个电容器和第一和第二电感器设置在基板的顶表面上。 第三电感器设置在基板的侧表面上。 第一和第三电容器的第一电极和第一电感器的第一端子连接到滤波器的第一I / O端子。 第二电容器的第一电极，第三电容器的第二电极和第二电感器的第一端子连接到滤波器的第二I / O端子。 第三电感器的第一端子连接到第一和第二电容器的第二电极。

公开(公告)号：US07994876B2

公开(公告)日：2011-08-09

申请号：US12220279

申请日：2008-07-23

申请人： Frank Z. Feng ,  Dwight D. Schmitt ,  Donal E. Baker ,  John Huss ,  Curtis B. White ,  Jamal Shafii ,  Mark F. Stunkel

发明人： Frank Z. Feng ,  Dwight D. Schmitt ,  Donal E. Baker ,  John Huss ,  Curtis B. White ,  Jamal Shafii ,  Mark F. Stunkel

IPC分类号： H03H7/06

CPC分类号： H02M1/126 ,  H02M2001/123 ,  H03H7/06 ,  H03H7/1725 ,  H03H7/427

摘要： A low pass filter includes a differential mode filter and a common mode filter. The common mode portion of the filter includes at least one inductor and one capacitor, as well as a damping circuit with at least one capacitor. The low pass filter has a reduced weight, which is useful in circumstances in which weight is a significant factor, such as in aircraft.

摘要翻译： 低通滤波器包括差模滤波器和共模滤波器。 滤波器的共模部分包括至少一个电感器和一个电容器，以及具有至少一个电容器的阻尼电路。 低通滤波器具有减轻的重量，其在重量是重要因素的情况下是有用的，例如在飞行器中。

公开(公告)号：US07773707B2

公开(公告)日：2010-08-10

申请号：US11461348

申请日：2006-07-31

申请人： Stephen B. Einbinder

发明人： Stephen B. Einbinder

IPC分类号： H04B1/10 ,  H04H5/12

CPC分类号： H03H7/0153 ,  H03H7/1725 ,  H03H7/1758 ,  H03H2007/013 ,  H03H2210/012

摘要： A tunable narrow band radio frequency (RF) filter (200) includes an RF input (225), an RF output (227), a capacitive network (201-209) for coupling the RF input (225) with the RF output (227) and an inductive network (219-223) for resonating the filter at a predetermined center frequency. A number of semiconductor devices such as varactor diodes (215, 217, 229, 233) are used for tuning respective capacitors in the capacitive network (201-209). A single voltage source (Vc) is used for tuning each one of the respective varactor diodes for moving the resonant frequency of the filter over a substantially wide frequency range.

摘要翻译： 可调谐窄带射频（RF）滤波器（200）包括RF输入（225），RF输出（227），用于将RF输入（225）与RF输出（227）耦合的电容网络（201-209） ）和用于使预定中心频率的滤波器谐振的感应网络（219-223）。 诸如变容二极管（215,217,229,233）的多个半导体器件用于调谐电容网络（201-209）中的各个电容器。 单个电压源（Vc）用于调谐各个变容二极管中的每一个，以在基本上宽的频率范围内移动滤波器的谐振频率。

公开(公告)号：US07671706B2

公开(公告)日：2010-03-02

申请号：US11697025

申请日：2007-04-05

申请人： Tetsuo Taniguchi

发明人： Tetsuo Taniguchi

IPC分类号： H01P1/20

CPC分类号： H03H7/09 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1775 ,  H03H7/1791 ,  H03H2001/0085

摘要： In a multilayer bandpass filter, capacitances are produced between a ground electrode provided in a ground electrode formation layer and capacitor electrodes provided in a capacitor electrode formation layer. A plurality of inductor electrodes are defined by via-electrodes and line electrodes such that loop planes of inductor electrodes at least partially overlap each other when seen in a direction in which the inductor electrodes are arranged. The direction of the loop of the inductor electrode of the LC parallel resonator located (at a first stage) at an input end is set to be opposite to the direction of the loop of the inductor electrodes of the LC parallel resonator (at a second stage) adjacent to the inductor electrode of the LC parallel resonator located at the input end. Similarly, the direction of the loop of the inductor electrode of the LC parallel resonator located (at a fifth stage) at an output end is set to be opposite to the direction of the loop of the inductor electrodes of the LC parallel resonator (at a fourth stage) adjacent to the inductor electrode of the LC parallel resonator located at the output end.

摘要翻译： 在多层带通滤波器中，在设置在接地电极形成层中的接地电极和设置在电容器电极形成层中的电容器电极之间产生电容。 多个电感器电极由通孔电极和线电极限定，使得当电感器电极布置方向看时，电感器电极的环面至少部分地彼此重叠。 位于输入端（处于第一级）的LC并联谐振器的电感器电极的环路的方向被设置为与LC并联谐振器的电感器电极的环路的方向相反（在第二级 ），位于输入端的LC并联谐振器的电感电极。 类似地，位于（在第五级）输出端的LC并联谐振器的电感器电极的环路的方向被设置为与LC并联谐振器的电感器电极的环路的方向相反（在 第四级）与位于输出端的LC并联谐振器的电感器电极相邻。

公开(公告)号：US20090267431A1

公开(公告)日：2009-10-29

申请号：US12108386

申请日：2008-04-23

申请人： Rangarajan M. Tallam ,  Gary L. Skibinski

发明人： Rangarajan M. Tallam ,  Gary L. Skibinski

IPC分类号： H02K11/00

CPC分类号： H02M1/126 ,  H03H7/09 ,  H03H7/1725 ,  H03H7/427

摘要： A terminator reduces reflections on power lines connecting an inverter to an AC motor by providing a differential-mode reflection damping element and at least one common-mode reflection damping element, the latter including a series capacitance to substantially reduce power dissipation in the resistance of the damping elements.

摘要翻译： 终端器通过提供差分模式反射阻尼元件和至少一个共模反射阻尼元件来减少将逆变器连接到AC电动机的电力线的反射，后者包括串联电容，以显着降低电阻中的功率消耗 阻尼元件。