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    POWER AMPLIFIER CIRCUIT CAPABLE OF ADJUSTING GAIIN DYNAMICALLY
    73.
    发明申请
    POWER AMPLIFIER CIRCUIT CAPABLE OF ADJUSTING GAIIN DYNAMICALLY 有权
    功率放大器电路，可以动态调整

    公开(公告)号：US20150288338A1

    公开(公告)日：2015-10-08

    申请号：US14279697

    申请日：2014-05-16

    申请人： AIROHA TECHNOOGY CORP.

    发明人： YU-HUA LIU ,  TING-YAO HUANG ,  JOHN-SAN YANG

    IPC分类号： H03G3/00 ,  H03F3/21 ,  H03F3/45 ,  H03F3/193

    CPC分类号： H03G3/007 ,  H03F1/0266 ,  H03F1/223 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45179 ,  H03F3/45183 ,  H03F3/45475 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/211 ,  H03F2200/451 ,  H03F2200/465 ,  H03F2200/555 ,  H03F2203/45112 ,  H03F2203/45594 ,  H03F2203/45596 ,  H03F2203/45631 ,  H03F2203/45702 ,  H03G3/3042

    摘要： The invention provides a power amplifier circuit capable of adjusting gain dynamically. The power amplifier circuit comprises a power supply unit configured to provide a power supply signal; an input power detection unit for receiving at least one input signal and the power supply signal, detecting the power of the input signal to generate a detection signal, and pulling up or down a bias signal by the detection signal; a power amplifier unit for receiving the input signal and the bias signal, adjusting the gain by the controlling of the bias signal, and amplifying the input signal by the adjusted gain to output at least one output signal. Therefore, the gain of power amplifier circuit will be adjusted dynamically by detecting the power of the input signal, so that the output signal conforming to the actual power may be outputted.

    摘要翻译： 本发明提供一种能够动态地调节增益的功率放大器电路。 功率放大器电路包括被配置为提供电源信号的电源单元; 输入功率检测单元，用于接收至少一个输入信号和电源信号，检测输入信号的功率以产生检测信号，以及通过检测信号提升或降低偏置信号; 功率放大器单元，用于接收输入信号和偏置信号，通过控制偏置信号来调节增益，并通过调整后的增益放大输入信号以输出至少一个输出信号。 因此，通过检测输入信号的功率，可以动态调整功率放大电路的增益，从而输出符合实际功率的输出信号。

    CONSTANT TRANSCONDUCTANCE BIAS CIRCUIT
    74.
    发明申请
    CONSTANT TRANSCONDUCTANCE BIAS CIRCUIT 有权
    恒定的交叉偏置电路

    公开(公告)号：US20150256131A1

    公开(公告)日：2015-09-10

    申请号：US14640960

    申请日：2015-03-06

    申请人： National Chiao Tung University

    发明人： Yu-Jiu Wang ,  Ching-Yun CHU

    IPC分类号： H03F1/02 ,  H03F3/16

    CPC分类号： H03F3/45475 ,  G05F3/242 ,  H03F1/0205 ,  H03F1/0261 ,  H03F1/301 ,  H03F3/16 ,  H03F2200/24 ,  H03F2200/555 ,  H03F2203/45136 ,  H03F2203/45154 ,  H03F2203/45288 ,  H03F2203/45528

    摘要： A bias circuit is adapted for biasing a to-be-biased transconductance cell such that the to-be-biased transconductance cell has a constant transconductance, and includes a converter and a controller. The converter receives first and second current signals, and generates, based on the first and second current signals, a first voltage signal, a second voltage signal and a bias voltage that is for biasing the to-be-biased transconductance cell. The controller receives the first and second voltage signals from the converter, generates the first and second current signals for the converter based on the first and second voltage signals so as to make a magnitude of the first voltage signal equal a magnitude of the second voltage signal.

    摘要翻译： 偏置电路适于偏置待偏置跨导单元，使得待偏置跨导单元具有恒定的跨导，并且包括转换器和控制器。 转换器接收第一和第二电流信号，并且基于第一和第二电流信号产生用于偏置待偏置跨导单元的第一电压信号，第二电压信号和偏置电压。 控制器从转换器接收第一和第二电压信号，基于第一和第二电压信号产生用于转换器的第一和第二电流信号，以使得第一电压信号的幅度等于第二电压信号的幅度 。

    AMPLIFIER STRUCTURE
    75.
    发明申请
    AMPLIFIER STRUCTURE 有权
    放大器结构

    公开(公告)号：US20150256130A1

    公开(公告)日：2015-09-10

    申请号：US14635269

    申请日：2015-03-02

    申请人： NXP B.V.

    发明人： Yi Zhu ,  Josephus van der Zanden ,  Kanjun Shi

    IPC分类号： H03F1/02 ,  H03F3/21 ,  H03F3/193

    CPC分类号： H03F1/0205 ,  H01L25/072 ,  H01L2224/49175 ,  H03F3/193 ,  H03F3/21 ,  H03F2200/451 ,  H03F2200/555

    摘要： An amplifier structure comprising a transistor element having a plurality of sub-sections arranged adjacent to one another along a transistor element axis, a bias distribution element comprising a first part and a second part, the first part configured to receive a bias signal and the second part configured to supply the bias signal to each of the sub-sections of the transistor stage, wherein the first part is configured and arranged to deliver the bias signal to a distribution point and the second part is configured to diverge from the distribution point to provide the bias signal to each of the sub-sections of the transistor element, the distribution point arranged substantially facing a centre point of the transistor element axis.

    摘要翻译： 一种放大器结构，包括晶体管元件，所述晶体管元件具有沿着晶体管元件轴线彼此相邻布置的多个子部分，偏置分布元件，包括第一部分和第二部分，所述第一部分被配置为接收偏置信号， 配置为将偏置信号提供给晶体管级的每个子部分的部分，其中第一部分被配置和布置成将偏置信号传送到分配点，并且第二部分被配置为从分配点发散以提供 偏置信号到晶体管元件的每个子部分，分布点基本上面对晶体管元件轴的中心点。

    Reduced gain variation biasing for short channel devices
    77.
    发明授权
    Reduced gain variation biasing for short channel devices 有权
    减少短通道器件的增益变化偏置

    公开(公告)号：US09106186B1

    公开(公告)日：2015-08-11

    申请号：US14268108

    申请日：2014-05-02

    申请人： Marvell International Ltd.

    发明人： David M. Signoff ,  Wayne A. Loeb

    IPC分类号： G05F1/10 ,  H03F1/30

    CPC分类号： H03F1/30 ,  H03F3/195 ,  H03F3/24 ,  H03F3/3001 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2200/555

    摘要： An amplifier biasing circuit that reduces gain variation in short channel amplifiers, an amplifier biasing circuit that produces a constant Gm biasing signal for short channel amplifiers, and a multistage amplifier that advantageously incorporates embodiment of both types of amplifier biasing circuits are described. Both amplifier biasing circuit approaches use an operational amplifier to equalize internal bias circuit voltages. The constant Gm biasing circuit produces a Gm of 1/R, where R is the value of a trim variable resistor value. The biasing circuit that reduces gain variation produces a Gm of approximately 1/R, where R is the value of a trim variable resistor value, however, the biasing circuit is configurable to adjust the bias circuit Gm to mitigate the impact of a wide range of circuit specific characteristics and a wide range of changes in the operational environment in which the circuit can be used, such as changes in temperature.

    摘要翻译： 描述了减少短通道放大器的增益变化的放大器偏置电路，为短通道放大器产生恒定的Gm偏置信号的放大器偏置电路以及有利地结合两种类型的放大器偏置电路的实施例的多级放大器。 两个放大器偏置电路方法都使用运算放大器来均衡内部偏置电路电压。 恒定Gm偏置电路产生1 / R的Gm，其中R是微调可变电阻器值的值。 减小增益变化的偏置电路产生大约1 / R的Gm，其中R是微调可变电阻器值的值，然而，偏置电路可配置为调整偏置电路Gm以减轻宽范围的影响 电路特性以及可以使用电路的操作环境的变化范围，如温度变化。

    AMPLIFIER CIRCUIT
    78.
    发明申请
    AMPLIFIER CIRCUIT 审中-公开
    放大器电路

    公开(公告)号：US20150194937A1

    公开(公告)日：2015-07-09

    申请号：US14666182

    申请日：2015-03-23

    申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.

    发明人： Tadamasa MURAKAMI

    IPC分类号： H03F1/26 ,  H03F3/19

    CPC分类号： H03F1/26 ,  H03F1/02 ,  H03F1/223 ,  H03F1/523 ,  H03F1/56 ,  H03F3/189 ,  H03F3/19 ,  H03F2200/108 ,  H03F2200/18 ,  H03F2200/294 ,  H03F2200/426 ,  H03F2200/444 ,  H03F2200/492 ,  H03F2200/555

    摘要： According to embodiments of the present invention, an over-input signal may be limited to be within a range between adjustable upper limit voltage and lower limit voltage while suppressing deterioration of a noise figure. An amplifier circuit includes an input transistor; an input transistor; a resistor element having a first terminal connected to a gate of the input transistor and a second terminal connected to a bias voltage; and a protective circuit connected to the gate of the input transistor and limiting an input to the gate of the input transistor to be within a range between an upper limit voltage and lower limit voltage adjustable based on the bias voltage.

    摘要翻译： 根据本发明的实施例，可以将过输入信号限制在可调节的上限电压和下限电压之间的范围内，同时抑制噪声系数的恶化。 放大器电路包括输入晶体管; 输入晶体管; 电阻元件，其具有连接到所述输入晶体管的栅极的第一端子和连接到偏置电压的第二端子; 以及连接到输入晶体管的栅极的保护电路，并且将输入到输入晶体管的栅极的输入限制在基于偏置电压可调节的上限电压和下限电压之间的范围内。

    METHOD FOR COMPENSATING A POWER AMPLIFICATION UNIT OF A WIRELESS RF MODULE
    79.
    发明申请
    METHOD FOR COMPENSATING A POWER AMPLIFICATION UNIT OF A WIRELESS RF MODULE 有权
    用于补偿无线RF模块的功率放大单元的方法

    公开(公告)号：US20150147977A1

    公开(公告)日：2015-05-28

    申请号：US14303803

    申请日：2014-06-13

    申请人： AIROHA TECHNOLOGY CORP.

    发明人： CHIEN-KUANG LEE ,  HENG-CHIH LIN

    IPC分类号： H03F3/24 ,  H04B1/40 ,  H04W52/22 ,  H03F3/189

    CPC分类号： H03F3/24 ,  H03F1/0227 ,  H03F1/0266 ,  H03F1/3223 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F2200/451 ,  H03F2200/555 ,  H04B1/40 ,  H04W52/226

    摘要： The present invention relates to a method for compensating a power amplification unit of a wireless RF module that includes a baseband unit, a RF transceiver unit, a power amplification unit and a control unit. The baseband unit is connected to the power amplification unit through the control unit and the RF transceiver unit. Based on the characteristic of the power amplification unit, the baseband unit provides a control signal to regulate the output signal characteristic of the power amplification unit, or provides a RF transceiver unit control signal to regulate the characteristics of the RF signal being transmitted by the RF transceiver unit to the power amplification unit, or to regulate the characteristics of the baseband signal being transmitted to the RF transceiver unit, enabling the characteristics of the output signal of the power amplification unit to meet the specifications of the related system.

    摘要翻译： 本发明涉及一种用于补偿包括基带单元，RF收发单元，功率放大单元和控制单元的无线RF模块的功率放大单元的方法。 基带单元通过控制单元和RF收发器单元连接到功率放大单元。 基于功率放大单元的特征，基带单元提供控制信号以调节功率放大单元的输出信号特性，或提供RF收发器单元控制信号，以调节由RF发送的RF信号的特性 收发器单元到功率放大单元，或者调节正在发送到RF收发器单元的基带信号的特性，使得功率放大单元的输出信号的特性能够满足相关系统的规格。