公开(公告)号：US09197170B2

公开(公告)日：2015-11-24

申请号：US14201543

申请日：2014-03-07

申请人： ViaSat, Inc.

发明人： David W. Corman ,  Glenn Diemond ,  Donald E. Crockett, III ,  David W. Self

IPC分类号： H03F3/189 ,  H03K17/00 ,  H03F3/193 ,  H03H11/02 ,  H03H11/48 ,  H03H3/00 ,  H01P1/38 ,  H01P1/36

CPC分类号： H03F3/189 ,  H01P1/36 ,  H01P1/38 ,  H03F3/193 ,  H03H3/00 ,  H03H11/02 ,  H03H11/38 ,  H03H11/48 ,  H03K17/002 ,  Y10T29/41

摘要： An integrated circuit can comprise: a first port, a second port, and a third port; and a plurality of microwave operational amplifiers coupled to each other and the first port, the second port, and the third port. The plurality of microwave operational amplifiers can be arranged to substantially pass a signal provided to the first port to the second port while substantially isolating the signal provided to the first port from the third port; the plurality of microwave operational amplifiers can be arranged to substantially pass a signal provided to the second port to the third port while substantially isolating the signal provided to the second port from the first port; and the plurality of microwave operational amplifiers can be arranged to substantially pass a signal provided to the third port to the first port while substantially isolating the signal provided to the third port from the second port.

摘要翻译： 集成电路可以包括：第一端口，第二端口和第三端口; 以及耦合到所述第一端口，所述第二端口和所述第三端口的多个微波运算放大器。 多个微波运算放大器可被布置成基本上将提供给第一端口的信号传递到第二端口，同时基本上将提供给第一端口的信号与第三端口隔离; 可以将多个微波运算放大器布置成将提供给第二端口的信号基本上传递到第三端口，同时基本上将提供给第二端口的信号与第一端口隔离; 并且多个微波运算放大器可以被布置为基本上将提供给第三端口的信号传递到第一端口，同时基本上将提供给第三端口的信号与第二端口隔离。

公开(公告)号：US20140097886A1

公开(公告)日：2014-04-10

申请号：US13648816

申请日：2012-10-10

申请人： Mark E. Shepard ,  Todd David Greenleaf ,  Alan Carroll Lovell

发明人： Mark E. Shepard ,  Todd David Greenleaf ,  Alan Carroll Lovell

IPC分类号： H03H11/02

CPC分类号： H02M1/08 ,  H02M2001/0012

摘要： Systems, methods, and apparatus for controlling power semiconductor devices are described. According to one embodiment of the disclosure, there is disclosed a system. The system may include at least one power source for selectively providing power to one or more power semiconductor devices controlled by a gate driver. The gate driver may include at least one controller coupled to at least one power semiconductor device interface via a first channel and a second channel configured to provide galvanic isolation of information communicated between the controller and the at least one power semiconductor device interface.

摘要翻译： 描述了用于控制功率半导体器件的系统，方法和装置。 根据本公开的一个实施例，公开了一种系统。 该系统可以包括至少一个电源，用于选择性地向由栅极驱动器控制的一个或多个功率半导体器件提供电力。 栅极驱动器可以包括经由第一通道耦合到至少一个功率半导体器件接口的至少一个控制器和被配置为提供在控制器与至少一个功率半导体器件接口之间传送的信息的电隔离的第二通道。

公开(公告)号：US20100219904A1

公开(公告)日：2010-09-02

申请号：US12713633

申请日：2010-02-26

申请人： Tomohisa Kishigami ,  Aya Yoshimura

发明人： Tomohisa Kishigami ,  Aya Yoshimura

IPC分类号： H03H11/28 ,  H03H11/02

CPC分类号： H04L12/40045

摘要： The communication system includes a trunk line constituted of first and second signal lines for transmitting differential signals, a plurality of branch lines each branching from the trunk line and connected with a node, and at least one reflection prevention circuit connected between the first and second signal lines. The reflection prevention circuit includes a rectifier circuit configured to inhibit a current from flowing between the first and second signal lines when a voltage between the differential signals is smaller than or equal to a predetermined voltage, and allow a current to flow between the first and second signal lines when the voltage between the differential signals is larger than the predetermined voltage, and a resistive element connected in series to the rectifier circuit between the first and second signal lines.

摘要翻译： 该通信系统包括由用于发送差分信号的第一和第二信号线构成的中继线，从中继线分支并与节点连接的多个分支线，以及连接在第一和第二信号之间的至少一个反射防止电路 线条。 反射防止电路包括：整流电路，其配置为当差分信号之间的电压小于或等于预定电压时阻止电流在第一和第二信号线之间流动，并且允许电流在第一和第二信号之间流动 当差分信号之间的电压大于预定电压时的信号线，以及与第一和第二信号线之间的整流电路串联连接的电阻元件。

公开(公告)号：US20090212816A1

公开(公告)日：2009-08-27

申请号：US12379464

申请日：2009-02-23

申请人： Hiromu Kato ,  Masahiro Takeuchi

发明人： Hiromu Kato ,  Masahiro Takeuchi

IPC分类号： H03H11/30 ,  H03H11/02 ,  H03K19/003

CPC分类号： H03H7/40

摘要： Disclosed is an impedance adjustment circuit including a comparator and a resistor control circuit. The comparator compares the resistance value of an external resistor and that of a replica resistor that forms a replica of a terminal resistor. The resistor control circuit includes a replica resistor control counter, a resistor-under-adjustment control signal holding circuit and a monitor circuit. The replica resistor control counter counts up and down based on the comparison result by the comparator to output a control signal to the replica resistor. The resistor-under-adjustment control signal holding circuit holds a control signal that is delivered to the terminal resistor. The monitor circuit receives the state of the counter and an output of the retention circuit and, in case the difference between the count state of the replica resistor control counter and an output of the resistor-under-adjustment control signal holding circuit is within a preset range, delivers the output of the resistor-under-adjustment control signal holding circuit as an input to the resistor-under-adjustment control signal holding circuit.

摘要翻译： 公开了一种包括比较器和电阻器控制电路的阻抗调节电路。 比较器比较外部电阻的电阻值和形成端子电阻的复制品的复制电阻的电阻值。 电阻控制电路包括复制电阻控制计数器，电阻调节下调控制信号保持电路和监视电路。 复制电阻控制计数器根据比较器的比较结果向上和向下计数，以将控制信号输出到复制电阻。 电阻调节下调节控制信号保持电路保持传送到端子电阻器的控制信号。 监视电路接收计数器的状态和保持电路的输出，并且在复制电阻控制计数器的计数状态与电阻调节不足调整控制信号保持电路的输出之间的差在预设值 将电阻调节不足的控制信号保持电路的输出作为输入提供给电阻调整不足的控制信号保持电路。

公开(公告)号：US07541890B2

公开(公告)日：2009-06-02

申请号：US11978252

申请日：2007-10-29

申请人： Siu K. Cheung ,  Willam H. Weedon, III ,  Timothy Philip Halloran

发明人： Siu K. Cheung ,  Willam H. Weedon, III ,  Timothy Philip Halloran

IPC分类号： H03H11/02

CPC分类号： H01P1/10 ,  H03F3/602

摘要： A circulator capable of simultaneous transmit and receive operations, high frequency, and high isolation and broadband performance comprising: an antenna port; a transmission port; a receiving port; wherein each port is connected to a 90 degree combiner/divider for splitting an input signal into two output components, the said output components have a ninety degrees relative phase difference to each other; each of said 90 degree combiner/dividers in addition to the connection to the above mentioned ports has at least two output connections each of which are connected to a Y-junction and if a fourth connection, said fourth connection is attached to a matching load circuit; this arrangement of circuits allows the portion of the phase shifted signals from the transmit port to enter the antenna 90 degree combiner/divider and be enhanced at the antenna port, while the rest of the signal enters the receive 90 degree combiner/divider and are phased cancelled; said arrangement allows the signals from the antenna port 90 degree combiner/divider to combine in phase at the receive port.

摘要翻译： 能够同时进行发送和接收操作，高频率，高隔离度和宽带性能的循环器，包括：天线端口; 传输端口; 接收端口 其中每个端口连接到90度组合器/分配器，用于将输入信号分成两个输出分量，所述输出分量具有彼此相差90度的相位; 除了与上述端口的连接之外，所述90度组合器/分配器中的每一个具有至少两个输出连接，每个输出连接都连接到Y形结，如果是第四连接，则所述第四连接被附接到匹配的负载电路 ; 这种电路布置允许来自发射端口的部分相移信号进入天线90度组合器/分频器，并且在天线端口处被增强，而信号的其余部分进入接收90度组合器/分频器并被分阶段 取消; 所述布置允许来自天线端口90度组合器/分配器的信号在接收端口处相位组合。

公开(公告)号：US5812939A

公开(公告)日：1998-09-22

申请号：US686864

申请日：1996-08-01

申请人： Kazumasa Kohama

发明人： Kazumasa Kohama

IPC分类号： H01P1/15 ,  H03H11/02 ,  H03K17/693 ,  H04B1/44 ,  H04B1/48 ,  H04B1/58 ,  H03F1/36

CPC分类号： H04B1/48 ,  H03K17/693

摘要： In a switch semiconductor integrated circuit, a switch for high frequency signal is constituted by four field-effect transistor stages connected in series to the first to fourth signal paths arranged in a ring shape and two field-effect transistor stages connected which are in a shunt position with respect to the signal paths such that two signal paths are positioned between two field-effect stages which are opposite to each other. At this time, the same voltage is impressed to the signal paths which are in a position opposite to each other among four signal paths, and the control voltage which are complementary to each other is impressed to the adjacent signal paths. Therefore, the number of field-effect transistor stages connected in a shunt position with respect to the signal paths and the number of control lines necessary to control the switching control can be reduced comparing to a conventional one; thus a small-sized switch semiconductor integrated circuit can be realized comparing to a conventional switch.

摘要翻译： 在开关半导体集成电路中，用于高频信号的开关由四个场效应晶体管级构成，该四个场效应晶体管级与被布置成环形的第一至第四信号通路串联连接，并且两个场效应晶体管级连接在分流器 相对于信号路径的位置，使得两个信号路径位于彼此相对的两个场效应级之间。 此时，对于在四个信号路径中彼此相对的位置的信号路径施加相同的电压，并且彼此互补的控制电压被施加到相邻的信号路径。 因此，与传统的相比，可以减少相对于信号路径分流位置连接的场效应晶体管级的数量和控制开关控制所需的控制线的数量; 因此与传统的开关相比，可以实现小型开关半导体集成电路。

公开(公告)号：US5450046A

公开(公告)日：1995-09-12

申请号：US142099

申请日：1993-10-28

申请人： Yuhei Kosugi ,  Osamu Yamamoto ,  Hiroaki Izumi ,  Hideki Kusamitsu ,  Shin-ichi Omagari ,  Hideo Watanabe ,  Yoshio Minowa

发明人： Yuhei Kosugi ,  Osamu Yamamoto ,  Hiroaki Izumi ,  Hideki Kusamitsu ,  Shin-ichi Omagari ,  Hideo Watanabe ,  Yoshio Minowa

IPC分类号： H01L23/552 ,  H01P1/00 ,  H01P5/107 ,  H03H11/02

CPC分类号： H01P1/00 ,  H01L23/552 ,  H01P5/107 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L24/48 ,  H01L2924/00014 ,  H01L2924/01014 ,  H01L2924/01068 ,  H01L2924/12041 ,  H01L2924/12044 ,  H01L2924/14 ,  H01L2924/1423 ,  H01L2924/15153 ,  H01L2924/1517 ,  H01L2924/16152 ,  H01L2924/16195 ,  H01L2924/19041 ,  H01L2924/3011 ,  H01L2924/3025

摘要： A composite microwave circuit module assembly has a dielectric substrate which is formed by a lower layer, an intermediate layer and an upper layer. The lower layer and the upper layer include a lower ground surface and an upper ground surface, respectively, and the intermediate layer includes a radio frequency signal circuit formed by an active circuit element and a passive circuit element. A number of via-holes filled with metal are arranged along the radio frequency signal circuit to short-circuit the upper ground surface and the lower ground surface so as to shield the radio frequency signal circuit. An element mounting cavity is disposed on the intermediate layer with a portion of dielectric above the intermediate layer being removed, and the active circuit element is mounted on an element mounting land in the cavity. The cavity is covered by a conductor plate member. A connection terminal connected with the radio frequency signal circuit is provided in a surface of the dielectric substrate without projecting from the surface thereof and allows external electrical connection thereat from outside by a microwave circuit connection structure having a contact member resiliently urged toward said connection terminal.

摘要翻译： 复合微波电路模块组件具有由下层，中间层和上层形成的电介质基板。 下层和上层分别包括下地面和上地面，中间层包括由有源电路元件和无源电路元件形成的射频信号电路。 沿着射频信号电路布置了多个充满金属的通孔，以使上地表和下地面短路，从而屏蔽射频信号电路。 元件安装腔设置在中间层上，中间层上方的电介质部分被去除，有源电路元件安装在空腔中的元件安装台面上。 空腔被导体板构件覆盖。 与该射频信号电路连接的连接端子设置在电介质基板的表面，而不会从其表面突出，并且通过具有向所述连接端子弹性推压的接触构件的微波电路连接结构从外部进行外部电连接。

公开(公告)号：US5425106A

公开(公告)日：1995-06-13

申请号：US81209

申请日：1993-06-25

申请人： Joel Katz ,  Miles Kath

发明人： Joel Katz ,  Miles Kath

IPC分类号： H03F3/187 ,  H03F3/68 ,  H03H11/02 ,  H03H11/18 ,  H04R5/04

CPC分类号： H04R5/04 ,  H03F3/187 ,  H03F3/68 ,  H03H11/02 ,  H03H11/18

摘要： An integrated circuit for use as a building block in different embodiments of systems for enhancing audio performance by providing group delay to various frequency components of the signal. The integrated circuit includes four op amps and associated circuitry. Using external connections, the device can be configured as a two-channel stereo device, or can be cascaded for monaural applications. Two of the chips may be cascaded together for stereo applications. External capacitances and resistances are used to control the degree of group delay provided to the signal to realize desired audio enhancement.

摘要翻译： 一种集成电路，用作系统的不同实施例中的构建块，用于通过向信号的各种频率分量提供组延迟来增强音频性能。 集成电路包括四个运算放大器和相关电路。 使用外部连接，该设备可以配置为双通道立体声设备，也可以级联用于单声道应用。 两个芯片可以级联在一起用于立体声应用。 外部电容和电阻用于控制提供给信号的群延迟的程度以实现所需的音频增强。

公开(公告)号：US4679010A

公开(公告)日：1987-07-07

申请号：US811923

申请日：1985-12-20

申请人： Inder J. Bahl

发明人： Inder J. Bahl

IPC分类号： H01P1/38 ,  H03H7/52 ,  H03H11/02

CPC分类号： H03H7/52 ,  H01P1/38

摘要： A gallium arsenide isolator has a common gate FET for amplifying a microw signal, the common gate FET being connected to a common drain FET for transmitting the microwave signal and for isolating the common gate FET from signals travelling in a direction opposite to the microwave signal. One or more L-C networks are connected at one end between the input and output of the isolator and at the other end to ground. The circulator includes three arms each having a gallium arsenide isolator. Each of the arms is coupled to another one of the arms by means of a four port coupler which permits transmission of a signal from one port to a second diagonally opposite port, the third port receiving a fixed fraction of the power and the fourth port receiving effectively no power.

摘要翻译： 砷化镓隔离器具有用于放大微波信号的公共栅极FET，公共栅极FET连接到公共漏极FET，用于传输微波信号并将公共栅极FET与沿与微波信号相反的方向传播的信号隔离。 一个或多个L-C网络一端连接在隔离器的输入和输出之间，另一端连接到地。 循环器包括三个臂，每个臂具有砷化镓隔离器。 每个臂通过四端口耦合器耦合到另一个臂，其允许信号从一个端口传输到第二对角线相对端口，第三端口接收功率的固定分数，并且第四端口接收 实际上没有权力。

公开(公告)号：US4629901A

公开(公告)日：1986-12-16

申请号：US519779

申请日：1983-07-29

申请人： Jun-ichi Nishizawa

发明人： Jun-ichi Nishizawa

IPC分类号： H03H11/02 ,  H01L31/112 ,  H01L31/12 ,  H01L31/167 ,  H01L31/173 ,  H03K17/78 ,  G02B27/00

CPC分类号： H01L31/12 ,  H01L31/1126 ,  H01L31/167 ,  H01L31/173

摘要： The present invention has for its object to provide a photo coupler which is operable with high sensitivity, high speed, low voltage and small current. To this end, a photo detector (13, 20, 33), which is coupled with one light emitting element (11, 21, 31) through a light transparent insulator, is formed by any one of a static induction transistor, field effect transistor and a static induction transistor.

摘要翻译： PCT No.PCT / JP82 / 00456 Sec。 371日期1983年7月29日第 102（e）日期1983年7月29日PCT申请日1982年11月30日PCT公布。 出版物WO83 / 02039 日期：1983年6月9日。本发明的目的是提供一种可高灵敏度，高速度，低电压和小电流操作的光耦合器。 为此，通过光透明绝缘体与一个发光元件（11,21,31）耦合的光电检测器（13,20,33）由静电感应晶体管，场效应晶体管 和静态感应晶体管。