公开(公告)号：US10454436B2

公开(公告)日：2019-10-22

申请号：US16183849

申请日：2018-11-08

申请人： National Chiao Tung University

发明人： Ta-Shun Chu ,  Yu-Jiu Wang

IPC分类号： H03F3/62 ,  H03H11/34 ,  H04B1/52 ,  H03F3/24 ,  H03H11/40 ,  H04B1/44 ,  H04B1/48

摘要： A wireless transceiver includes: a switching amplifier having first, second and power ports; and a current provider. The current provider provides a current to the power port, and further provides an impedance to the power port such that an impedance of the switching amplifier at the second port matches an impedance of an antenna coupled to the second port. The switching amplifier simultaneously amplifies a transmit signal input received at the first port to generate an output signal at the second port for receipt by the antenna, and mixes a receive signal received at the second port from the antenna with the transmit signal input to generate, at the power port, another output signal having a frequency lower than that of the receive signal.

公开(公告)号：US09734917B2

公开(公告)日：2017-08-15

申请号：US15194415

申请日：2016-06-27

申请人： Monolithic Power Systems, Inc.

发明人： Xingwei Wang ,  Junyong Gong ,  Brent Hughes

IPC分类号： H03H11/40 ,  G11C17/16 ,  H03K7/08 ,  H03K5/24 ,  H02M1/32 ,  H03K5/1252 ,  H02M3/158 ,  H02M3/28 ,  H02J1/10

CPC分类号： G11C17/16 ,  G06F13/385 ,  G06F13/4081 ,  H02J1/10 ,  H02J2001/106 ,  H02M1/32 ,  H02M3/1584 ,  H02M3/285 ,  H03K5/1252 ,  H03K5/24 ,  H03K7/08

摘要： A current balance circuit for a power management device having a first current channel and a second current channel, having: a first current sense circuit configured to detect a current flowing through the first current channel, and to provide a first current sense signal indicative of the current flowing through the first current channel; wherein the current balance circuit draws current from the second current channel to the first current channel based on the first current sense signal.

公开(公告)号：US09401695B2

公开(公告)日：2016-07-26

申请号：US14766582

申请日：2013-06-25

申请人： MARCDEVICES CO., LTD.

发明人： Koichi Hirama

IPC分类号： H03H11/40 ,  H03H11/46

CPC分类号： H03H11/40 ,  H03H11/46

摘要： An immittance conversion circuit includes a first terminal and a second terminal, and includes: a conversion target circuit configured to amplify or attenuate a signal with desired frequency and gain characteristics, and output the resultant signal; a difference signal detection circuit configured to supply the input terminal of the conversion target circuit with a signal of a difference between signals generated at the first and second terminals; an immittance conversion drive circuit configured to perform differential output processing to generate a voltage of a difference between a correction voltage and the signal outputted from the conversion target circuit, and output feedback signals to an immittance conversion generation circuit; and the immittance conversion generation circuit having an immittance conversion generation action to generate, at each of the first and second terminals, a signal of currents or voltages of the corresponding inputted feedback signal and the signal inputted to the first or second terminal. A signal of a difference between the signals generated at the first and second terminals is inputted to the immittance conversion drive circuit as the correction voltage.

摘要翻译： 导纳转换电路包括第一端子和第二端子，并且包括：转换目标电路，被配置为放大或衰减具有期望的频率和增益特性的信号，并输出所得到的信号; 差分信号检测电路，被配置为向所述转换目标电路的输入端提供在所述第一和第二端子处产生的信号之间的差的信号; 导纳转换驱动电路，被配置为执行差分输出处理以产生校正电压与从转换目标电路输出的信号之间的差的电压，并将反馈信号输出到导纳转换生成电路; 并且所述导纳转换生成电路具有导纳转换生成动作，以在所述第一和第二终端中的每一个处产生相应的输入反馈信号的电流或电压的信号以及输入到所述第一或第二终端的信号。 将在第一和第二端子处产生的信号之间的差的信号作为校正电压被输入到导纳转换驱动电路。

公开(公告)号：US20150381145A1

公开(公告)日：2015-12-31

申请号：US14766582

申请日：2013-06-25

申请人： MARCDEVICES CO., LTD.

发明人： Koichi HIRAMA

IPC分类号： H03H11/40

CPC分类号： H03H11/40 ,  H03H11/46

摘要： An immittance conversion circuit includes a first terminal and a second terminal, and includes: a conversion target circuit configured to amplify or attenuate a signal with desired frequency and gain characteristics, and output the resultant signal; a difference signal detection circuit configured to supply the input terminal of the conversion target circuit with a signal of a difference between signals generated at the first and second terminals; an immittance conversion drive circuit configured to perform differential output processing to generate a voltage of a difference between a correction voltage and the signal outputted from the conversion target circuit, and output feedback signals to an immittance conversion generation circuit; and the immittance conversion generation circuit having an immittance conversion generation action to generate, at each of the first and second terminals, a signal of currents or voltages of the corresponding inputted feedback signal and the signal inputted to the first or second terminal. A signal of a difference between the signals generated at the first and second terminals is inputted to the immittance conversion drive circuit as the correction voltage.

摘要翻译： 导纳转换电路包括第一端子和第二端子，并且包括：转换目标电路，被配置为放大或衰减具有期望的频率和增益特性的信号，并输出所得到的信号; 差分信号检测电路，被配置为向所述转换目标电路的输入端提供在所述第一和第二端子处产生的信号之间的差的信号; 导纳转换驱动电路，被配置为执行差分输出处理以产生校正电压与从转换目标电路输出的信号之间的差的电压，并将反馈信号输出到导纳转换生成电路; 并且所述导纳转换生成电路具有导纳转换生成动作，以在所述第一和第二终端中的每一个处产生相应的输入反馈信号的电流或电压的信号以及输入到所述第一或第二终端的信号。 将在第一和第二端子处产生的信号之间的差的信号作为校正电压被输入到导纳转换驱动电路。

公开(公告)号：US09166551B2

公开(公告)日：2015-10-20

申请号：US13180833

申请日：2011-07-12

申请人： Sang Hun Lee ,  Sung Bae Cho ,  Dong Chan Park ,  Chang Wook Kim ,  Ju Young Song ,  Hyeong Seok Jang ,  Jong Won Yu

发明人： Sang Hun Lee ,  Sung Bae Cho ,  Dong Chan Park ,  Chang Wook Kim ,  Ju Young Song ,  Hyeong Seok Jang ,  Jong Won Yu

IPC分类号： H01Q1/50 ,  H03H7/40 ,  H04B1/04 ,  H03H11/40

CPC分类号： H03H7/40 ,  H03H11/40 ,  H04B1/0458

摘要： An apparatus and method for matching impedance of an antenna by using Standing Wave Ratio (SWR) information is provided. While the impedance of the impedance matching unit is controlled, a region of a Smith chart in which initial total impedance of the impedance matching unit and the antenna is located by using an SWR calculated by an SWR operation unit, and the impedance of the impedance matching unit is controlled according to the determined region, thus correctly matching the impedance of the antenna.

摘要翻译： 提供了通过使用驻波比（SWR）信息来匹配天线的阻抗的装置和方法。 在阻抗匹配单元的阻抗被控制的情况下，通过使用由SWR运算单元计算的SWR和阻抗匹配单元和天线的阻抗匹配的阻抗匹配单元和天线的初始总阻抗的史密斯圆图的区域 单位根据确定的区域进行控制，从而正确匹配天线的阻抗。

公开(公告)号：US08689244B2

公开(公告)日：2014-04-01

申请号：US12010516

申请日：2008-01-25

申请人： William Beckwith ,  Steven Deller ,  Joe G. Thompson

发明人： William Beckwith ,  Steven Deller ,  Joe G. Thompson

IPC分类号： G06F3/00 ,  G06F9/44 ,  G06F9/46 ,  G06F13/00 ,  G06G7/64 ,  H03K17/00 ,  H03H11/40 ,  H03K17/687 ,  G06F15/16

CPC分类号： H04L41/0813 ,  G06F9/465 ,  G06F9/541 ,  G06F9/546 ,  G06F15/17375 ,  H04L67/2809

摘要： A communication system according to one aspect of the present invention, comprises one or more integrated circuits. The one or more integrated circuits comprise at least one of a local integrated circuit and a remote integrated circuit. At least one sending application hardware module located on the local integrated circuit has a sending logic that controls the sending of messages from the sending application hardware module. At least one receiving application hardware module is located on at least one of the local integrated circuit or remote integrated circuit. A sending application hardware module sends messages to a receiving application hardware module without its sending logic having been constructed with a priori knowledge of the address of or the path to said receiving application hardware module. A dispatch logic located on the local integrated circuit that routes at least one or more.

摘要翻译： 根据本发明的一个方面的通信系统包括一个或多个集成电路。 一个或多个集成电路包括本地集成电路和远程集成电路中的至少一个。 位于本地集成电路上的至少一个发送应用硬件模块具有控制从发送应用硬件模块发送消息的发送逻辑。 至少一个接收应用硬件模块位于本地集成电路或远程集成电路中的至少一个上。 发送应用硬件模块向接收应用硬件模块发送消息，而其发送逻辑未被构建为对所述接收应用硬件模块的地址或路径的先验知识。 位于本地集成电路上的调度逻辑，路由至少一个或多个。

公开(公告)号：US20120105135A1

公开(公告)日：2012-05-03

申请号：US13287449

申请日：2011-11-02

申请人： Hans Halberstadt

发明人： Hans Halberstadt

IPC分类号： H03H11/40

CPC分类号： H03H11/405 ,  H03H11/481 ,  H03H11/483

摘要： An electrical circuit for emulating a capacitance, comprises a physical capacitor which is charged by charge flow from the input of the electrical circuit. An amplifier amplifies the voltage at the input of the electrical circuit such that the physical capacitor is charged with a larger change in voltage than the change in voltage at the input. This implements an effective multiplication of capacitance. A reset system resets the physical capacitor without drawing charge from the input of the electrical circuit. This extends the voltages which can be provided to the input.

摘要翻译： 用于仿真电容的电路包括物理电容器，其由电路的输入端通过电荷流充电。 放大器放大电路输入端的电压，使得物理电容器的电压变化比输入端的电压变化更大。 这实现了电容的有效乘法。 复位系统复位物理电容器，而不会从电路的输入中抽取电荷。 这扩展了可以提供给输入的电压。

公开(公告)号：US07915948B2

公开(公告)日：2011-03-29

申请号：US11980609

申请日：2007-10-31

申请人： Kouichi Nishimura

发明人： Kouichi Nishimura

IPC分类号： H03H11/40

CPC分类号： H03K5/2481

摘要： A differential amplifier circuit receives a pair of input signals to develop an output signal. First and second MOS transistors have commonly-connected gates and sources. A third MOS transistor has a drain connected to the commonly-connected gates, and a source connected to the first MOS transistor's drain. The third MOS transistor's gate is connected to a constant voltage source. A constant current source is connected to the third MOS transistor's drain. A first terminal, connected to the first MOS transistor's drain and to the third MOS transistor's source, provides an input current. A second terminal, connected to the first and second MOS transistors' commonly-connected sources, provides a common reference. A third terminal, connected to the second MOS transistor's drain, provides an output current.

摘要翻译： 差分放大器电路接收一对输入信号以产生输出信号。 第一和第二MOS晶体管具有共同连接的门和源。 第三MOS晶体管具有连接到共同连接的栅极的漏极和连接到第一MOS晶体管漏极的源极。 第三个MOS晶体管的栅极连接到恒压源。 恒流源连接到第三MOS晶体管的漏极。 连接到第一MOS晶体管的漏极和第三MOS晶体管源极的第一端子提供输入电流。 连接到第一和第二MOS晶体管的共同连接的源的第二端子提供公共参考。 连接到第二MOS晶体管的漏极的第三端子提供输出电流。

公开(公告)号：US6107842A

公开(公告)日：2000-08-22

申请号：US229686

申请日：1999-01-13

申请人： Atsushi Hirabayashi ,  Kosuke Fujita ,  Kenji Komori ,  Norihiro Murayama

发明人： Atsushi Hirabayashi ,  Kosuke Fujita ,  Kenji Komori ,  Norihiro Murayama

IPC分类号： G11B20/00 ,  H03H11/28 ,  H03H11/32 ,  H03H11/40 ,  H04N5/14 ,  H04N5/44 ,  H02M11/00

CPC分类号： H03H11/28 ,  H03H11/32 ,  G11B20/00 ,  H04N5/148

摘要： An impedance conversion circuit for the use with a video apparatus, an audio apparatus, or a communication apparatus is provided. The impedance conversion circuit can be used at a frequency higher than that conventionally used and is suitable for formation as an integrated circuit. A video apparatus using this impedance conversion circuit, and the like are also proposed. Driving current is supplied to first and second terminals of an impedance circuit in accordance with voltages of first and second input terminals, respectively, and current is made to flow out of the second and first output terminals in accordance with the first and second terminal voltages of the impedance circuit, respectively.

摘要翻译： 提供了一种用于与视频设备，音频设备或通信设备一起使用的阻抗转换电路。 阻抗转换电路可以以比常规使用的频率更高的频率使用，并且适合作为集成电路的形成。 还提出了使用该阻抗转换电路的视频装置等。 驱动电流分别根据第一和第二输入端子的电压被提供给阻抗电路的第一和第二端子，并且使电流根据第一和第二输出端子的第一和第二端子电压流出第二和第二输出端子 阻抗电路。

公开(公告)号：US5894163A

公开(公告)日：1999-04-13

申请号：US639479

申请日：1996-04-02

申请人： Duncan A. McFarland ,  David C. Crohn

发明人： Duncan A. McFarland ,  David C. Crohn

IPC分类号： H01L27/04 ,  H01L21/822 ,  H01L29/94 ,  H03H7/30 ,  H03H11/40 ,  H01L29/00

CPC分类号： H01L29/94 ,  H03H11/405 ,  H03H7/30

摘要： A semiconductor device (400) and method are provided for multiplying a capacitance. A contact region (402) is formed in an island in a semiconductor substrate (499) bounded by an isolation region (403), producing the capacitance at the junction of the contact region (402). A dielectric layer (404) is formed over the semiconductor substrate (499) adjacent to the contact region (402). A contact layer (408) is formed over the dielectric layer (404) wherein an inversion layer (406) is formed under the contact layer (408), producing an inversion capacitance in response to an enabling signal. The inversion capacitance corresponds to a multiple of the capacitance.

摘要翻译： 提供了用于乘以电容的半导体器件（400）和方法。 接触区域（402）形成在由隔离区域（403）限定的半导体衬底（499）中的岛上，在接触区域（402）的接合处产生电容。 在与接触区域（402）相邻的半导体衬底（499）上形成介电层（404）。 在电介质层（404）上形成接触层（408），其中在接触层（408）下形成反型层（406），响应于使能信号产生反转电容。 反相电容对应于电容的倍数。