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    Amplification circuit
    4.
    发明授权
    Amplification circuit 有权
    放大电路

    公开(公告)号：US09559655B2

    公开(公告)日：2017-01-31

    申请号：US14747653

    申请日：2015-06-23

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Hiroshi Uemura

    IPC分类号： H04B10/06 ,  H03G3/30 ,  H04B10/564 ,  H04B10/60 ,  H03F3/45

    CPC分类号： H03G3/3084 ,  H03F3/45183 ,  H03F2200/102 ,  H03F2203/45674 ,  H03G3/3047 ,  H03G7/00 ,  H04B10/504 ,  H04B10/564 ,  H04B10/60 ,  H04B10/693

    摘要： According to one embodiment, an amplification circuit includes an amplifier having a gain and amplifying the input signal based on the gain, and a gain control signal generator controlling the gain based on an amplitude of the input signal. The gain obtained when the amplitude of the input signal is less than a first amplitude and when the amplitude of the input signal is greater than a second amplitude is lower than the gain obtained when the amplitude of the input signal is between the first and second amplitudes or when the amplitude of the input signal is one of the first and second amplitudes. The second amplitude is greater than or equal to the first amplitude.

    摘要翻译： 根据一个实施例，放大电路包括具有增益的放大器和基于增益放大输入信号，以及增益控制信号发生器，其基于输入信号的幅度来控制增益。 当输入信号的幅度小于第一幅度并且当输入信号的幅度大于第二幅度时获得的增益低于当输入信号的幅度在第一和第二幅度之间时获得的增益 或者当输入信号的幅度是第一和第二幅度之一时。 第二幅度大于或等于第一幅度。

    Power amplification module
    5.
    发明授权
    Power amplification module 有权
    功率放大模块

    公开(公告)号：US09559654B2

    公开(公告)日：2017-01-31

    申请号：US14520467

    申请日：2014-10-22

    申请人： Murata Manufacturing Co., Ltd.

    发明人： Hayato Nakamura ,  Mitsuo Ariie ,  Tadashi Matsuoka ,  Tsutomu Onaro

    IPC分类号： H03G3/30 ,  H03F3/21 ,  H03F3/193 ,  H03F1/02 ,  H03F1/22 ,  H03F3/195 ,  H03G1/00

    CPC分类号： H03G3/3047 ,  H03F1/0261 ,  H03F1/22 ,  H03F3/195 ,  H03F3/211 ,  H03F2200/144 ,  H03F2200/153 ,  H03F2200/18 ,  H03F2200/408 ,  H03F2200/451 ,  H03F2203/21112 ,  H03F2203/45138 ,  H03F2203/45528 ,  H03G1/0029

    摘要： Disclosed is a power amplification module which has a comparatively small size and is capable of adjusting the rising characteristic of a gain. The power amplification module includes a first gain control current generation circuit which generates a first gain control current changing with a control voltage, a first bias current generation circuit which generates a first bias current according to the first gain control current, a gain control voltage generation circuit which generates a gain control voltage changing with the control voltage, a first transistor which is emitter-grounded and in which an input signal and the first bias current are supplied to a base thereof, and a second transistor which is cascode-connected to the first transistor and in which the gain control voltage is supplied to a base thereof and a first output signal obtained by amplifying the input signal is output from a collector thereof.

    摘要翻译： 公开了一种功率放大模块，其具有相对较小的尺寸并且能够调节增益的上升特性。 功率放大模块包括：第一增益控制电流产生电路，其产生以控制电压变化的第一增益控制电流;第一偏置电流产生电路，其根据第一增益控制电流产生第一偏置电流;增益控制电压产生 电路，其产生随着控制电压而变化的增益控制电压;发射极接地的第一晶体管，其输入信号和第一偏置电流被提供给其基极;第二晶体管，其与 第一晶体管，并且其增益控制电压被提供给其基极，并且通过放大输入信号获得的第一输​​出信号从其集电极输出。

    AMPLIFICATION CIRCUIT
    6.
    发明申请
    AMPLIFICATION CIRCUIT 有权
    放大电路

    公开(公告)号：US20160204753A1

    公开(公告)日：2016-07-14

    申请号：US14747653

    申请日：2015-06-23

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Hiroshi UEMURA

    IPC分类号： H03G3/30 ,  H04B10/564 ,  H04B10/60 ,  H03F3/16

    CPC分类号： H03G3/3084 ,  H03F3/45183 ,  H03F2200/102 ,  H03F2203/45674 ,  H03G3/3047 ,  H03G7/00 ,  H04B10/504 ,  H04B10/564 ,  H04B10/60 ,  H04B10/693

    摘要： According to one embodiment, an amplification circuit includes an amplifier having a gain and amplifying the input signal based on the gain, and a gain control signal generator controlling the gain based on an amplitude of the input signal. The gain obtained when the amplitude of the input signal is less than a first amplitude and when the amplitude of the input signal is greater than a second amplitude is lower than the gain obtained when the amplitude of the input signal is between the first and second amplitudes or when the amplitude of the input signal is one of the first and second amplitudes. The second amplitude is greater than or equal to the first amplitude.

    摘要翻译： 根据一个实施例，放大电路包括具有增益的放大器和基于增益放大输入信号，以及增益控制信号发生器，其基于输入信号的幅度来控制增益。 当输入信号的幅度小于第一幅度并且当输入信号的幅度大于第二幅度时获得的增益低于当输入信号的幅度在第一和第二幅度之间时获得的增益 或者当输入信号的幅度是第一和第二幅度之一时。 第二幅度大于或等于第一幅度。

    System and method for quickly power amplifier control
    7.
    发明授权
    System and method for quickly power amplifier control 有权
    用于快速功率放大器控制的系统和方法

    公开(公告)号：US08787851B2

    公开(公告)日：2014-07-22

    申请号：US13925394

    申请日：2013-06-24

    申请人： Huawei Device Co., Ltd

    发明人： Wei Xu ,  Yu Deng

    IPC分类号： H04B1/04 ,  H03C1/62

    CPC分类号： H04W52/52 ,  H03G3/3047

    摘要： Embodiments of the present invention provide a system and method for power amplifier control. Before a fixed gain amplifier is disabled and after an automatic gain controller adjusts gain for the last time, a reference transmit power value is read from the automatic gain controller. A gain level is read from the fixed gain amplifier. The reference transmit power value and the gain level are saved in a storage module. Before the fixed gain amplifier is enabled and after the automatic gain controller adjusts gain for the last time, the reference transmit power value saved in the storage module is written into the automatic gain controller and the gain level saved in the storage module is written into the fixed gain amplifier.

    摘要翻译： 本发明的实施例提供了一种用于功率放大器控制的系统和方法。 在禁用固定增益放大器之前，在自动增益控制器最后调整增益之后，从自动增益控制器读取参考发送功率值。 从固定增益放大器读取增益电平。 参考发射功率值和增益电平保存在存储模块中。 在固定增益放大器使能之前，自动增益控制器最后调整增益后，存储模块中保存的参考发送功率值被写入自动增益控制器，并将保存在存储模块中的增益级别写入 固定增益放大器。

    Power management system for multi-carriers transmitter
    8.
    发明授权
    Power management system for multi-carriers transmitter 有权
    多载波发射机电源管理系统

    公开(公告)号：US08588713B2

    公开(公告)日：2013-11-19

    申请号：US13343840

    申请日：2012-01-05

    申请人： Nadim Khlat

    发明人： Nadim Khlat

    IPC分类号： H01Q11/12 ,  H04K3/00

    CPC分类号： H03G3/3047 ,  H03F1/0277 ,  H03F3/24 ,  H03F3/72

    摘要： A power management system for a multi-carriers transmitter is disclosed. The power management system includes a first switcher having a control input and a power output, and a second switcher having a control input and a power output. Also included is a mode switch having a mode control input, wherein the mode switch is adapted to selectively couple the power output of the first switcher to the power output of the second switcher in response to a mode control signal received by the mode control input. Further included is a control system adapted to generate the mode control signal. The control system is coupled to the mode control input of the mode switch.

    摘要翻译： 公开了一种用于多载波发射机的电源管理系统。 电源管理系统包括具有控制输入和功率输出的第一切换器，以及具有控制输入和功率输出的第二切换器。 还包括具有模式控制输入的模式开关，其中模式开关适于响应于由模式控制输入接收的模式控制信号而选择性地将第一切换器的功率输出耦合到第二切换器的功率输出。 还包括适于产生模式控制信号的控制系统。 控制系统耦合到模式开关的模式控制输入。

    Method and system for controlling signal transmission of a wireless communication device
    9.
    发明授权
    Method and system for controlling signal transmission of a wireless communication device 有权
    用于控制无线通信设备的信号传输的方法和系统

    公开(公告)号：US08538354B2

    公开(公告)日：2013-09-17

    申请号：US13079473

    申请日：2011-04-04

    申请人： Bing Xu ,  Pravin Premakanthan

    发明人： Bing Xu ,  Pravin Premakanthan

    IPC分类号： H04B1/04 ,  H01Q11/12 ,  H03F3/68 ,  H03G3/00 ,  H03G3/20

    CPC分类号： H03G3/3047

    摘要： In accordance with the present disclosure, disadvantages and problems associated with controlling signal transmission of a wireless communication device may be reduced. In accordance with an example embodiment of the present disclosure a method for controlling transmission of a wireless communication signal comprises sensing one or more signals indicative of a power level of a wireless communication signal. The power level of the wireless communication signal is amplified by a power amplifier according to an amplifier control signal. The method further comprises determining a change in the power level based on the one or more signals indicative of the power level. The change is associated with one or more perturbations of the amplifier control signal. The method also comprises adjusting transmission of the wireless communication signal according to the change in the power level.

    摘要翻译： 根据本公开，可以减少与控制无线通信设备的信号传输相关联的缺点和问题。 根据本公开的示例实施例，用于控制无线通信信号的传输的方法包括感测指示无线通信信号的功率电平的一个或多个信号。 根据放大器控制信号，功率放大器对无线通信信号的功率电平进行放大。 该方法还包括基于指示功率电平的一个或多个信号确定功率电平的变化。 该变化与放大器控制信号的一个或多个扰动相关。 该方法还包括根据功率电平的变化调整无线通信信号的传输。

    POWER MANAGEMENT IN TRANSCEIVERS
    10.
    发明申请
    POWER MANAGEMENT IN TRANSCEIVERS 有权
    收银机电力管理

    公开(公告)号：US20130154732A1

    公开(公告)日：2013-06-20

    申请号：US13330412

    申请日：2011-12-19

    申请人： Nicholas P. Cowley ,  Isaac Ali ,  William L. Barber

    发明人： Nicholas P. Cowley ,  Isaac Ali ,  William L. Barber

    IPC分类号： H03G3/20

    CPC分类号： H03F3/24 ,  H03F1/0211 ,  H03F1/0216 ,  H03F2200/294 ,  H03F2200/504 ,  H03F2203/20 ,  H03G3/20 ,  H03G3/3042 ,  H03G3/3047

    摘要： Various embodiments are directed to apparatuses and methods to reduce average power dissipation in transceiver stages such as power amplifiers and low noise amplifiers (LNAs) that process signals of varying output amplitudes. Power dissipation may be reduced by varying the supply voltage in sympathy with the amplitude of the signal and/or the stage current density which may also be varied in sympathy with the signal amplitude.

    摘要翻译： 各种实施例涉及减少收发机级中的平均功率耗散的装置和方法，例如功率放大器和处理变化的输出幅度的信号的低噪声放大器（LNA）。 通过改变与信号幅度和/或阶段电流密度同步的电源电压，可以减少功率消耗，这也可以在与信号幅度相同的情况下变化。