Power amplifier device with controlled envelope tracking modulator and adapted static voltage
    3.
    发明公开
    Power amplifier device with controlled envelope tracking modulator and adapted static voltage 审中-公开
    具有受控Hüllkurvenverfolgungs调制器功率放大装置,并适于静电压

    公开(公告)号:EP2882096A1

    公开(公告)日:2015-06-10

    申请号:EP13306675.3

    申请日:2013-12-06

    申请人: ALCATEL LUCENT

    发明人: Rixain, Michel

    IPC分类号: H03F1/02 H03F3/24 H03F1/56

    摘要: This invention relates to a power amplifier device, comprising:
    - An amplifier component (A), operable to receive an input signal (s i ) and to provide an amplified output signal (s o ), according to a control signal (ctrl);
    - An envelope tracking modulator (ET), providing the control signal (ctrl) according to a static voltage (V s ) and a dynamic voltage (V D );
    - A power supply (S) providing said static and dynamic voltages according to measurements performed by a power sensor (PS) on the amplified output signal, so that the static voltage (Vs) is determined as a mean value of the output signal (So) over a predetermined time duration.

    摘要翻译: 本发明涉及一种功率放大装置,包括: - 放大器部件(A),其可操作以接收在输入信号(S i)和提供到放大的输出信号(S 0),雅丁到的控制信号(CTRL); - 一个包络跟踪调制器(ET),提供雅丁控制信号(CTRL),以静态电压(V S)和动态电压(V D); - 一个电源(S)提供所述静态和动态电压雅丁到由功率传感器(PS)上的放大的输出信号执行的测量,所以没有静态电压(Vs)是确定性的开采作为输出信号的平均值(所以 )在预定的时间持续时间。

    Methods and apparatus for power control
    7.
    发明公开
    Methods and apparatus for power control 有权
    Verfahren und Vorrichtung zur Stromsteuerung

    公开(公告)号:EP2582038A1

    公开(公告)日:2013-04-17

    申请号:EP11185325.5

    申请日:2011-10-14

    发明人: Muhammad, Khurram

    IPC分类号: H03F1/02

    CPC分类号: H03F1/0272

    摘要: A transmitter for a portable electronic device comprises a mixer, a digital-to- analogue converter (204), a driver stage (210) and a power amplifier (212). The transmitter comprises furthermore a control circuit (220, 228) that is connected to the output of the power amplifier and to a look-up table (226) including values corresponding to ramp functions. By comparing the level of the transmitter output signal with target values provided eg. by said look-up table, an error signal is generated which in turn is used to adjust the gain and bias settings of at least one of the transmitter stages, eg. the power amplifier (212) or its driver stage (210).

    摘要翻译: 用于便携式电子设备的发射器包括混频器,数模转换器(204),驱动级(210)和功率放大器(212)。 发射机还包括连接到功率放大器的输出的控制电路(220,228)和包括对应于斜坡功能的值的查找表(226)。 通过比较发射机输出信号的电平与例如提供的目标值。 通过所述查找表,产生误差信号,该误差信号又用于调整至少一个发射器级的增益和偏置设置,例如, 功率放大器(212)或其驱动器级(210)。

    Automatic bias control circuit for linear power amplifiers
    9.
    发明公开
    Automatic bias control circuit for linear power amplifiers 有权
    Automatischer VorspannungsregelkreisfürlineareLeistungsverstärker

    公开(公告)号:EP2387150A2

    公开(公告)日:2011-11-16

    申请号:EP11166281.3

    申请日:2006-06-23

    摘要: According to an exemplary embodiment, an amplification module includes a power amplifier configured to receive an RF input signal and provide an RP output signal. The amplification module further includes an autobias control circuit configured to receive and convert the RF output signal to a control signal. The control signal can cause the power amplifier to have a quiescent current that increases substantially linearly in response to an increase in RF output power of the RF output signal. The autobias control circuit can include a peak detector/log converter circuit coupled to a first input of a differential amplifier, where the differential amplifier outputs the control signal. The autobias control circuit can further include a DC reference circuit coupled to a second input of the differential amplifier. The amplification module further includes an analog bias circuit coupling the control voltage to a bias input of said power amplifier.

    摘要翻译: 根据示例性实施例,放大模块包括被配置为接收RF输入信号并提供RP输出信号的功率放大器。 放大模块还包括自动分度控制电路,其被配置为接收并将RF输出信号转换为控制信号。 控制信号可以使得功率放大器具有响应于RF输出信号的RF输出功率的增加而基本线性地增加的静态电流。 自动偏置控制电路可以包括耦合到差分放大器的第一输入的峰值检测器/对数转换器电路,其中差分放大器输出控制信号。 自动调节控制电路还可以包括耦合到差分放大器的第二输入的DC参考电路。 放大模块还包括将控制电压耦合到所述功率放大器的偏置输入的模拟偏置电路。