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    • 2. 发明授权
    • Amplifier compression adjustment circuit
    • 放大器压缩调节电路
    • US08013674B2
    • 2011-09-06
    • US12853951
    • 2010-08-10
    • Serge Francois DrogiVikas Vinayak
    • Serge Francois DrogiVikas Vinayak
    • H03G3/20
    • H03F3/24H03F1/0227H03F1/0238H03F1/0266H03F1/0272H03F1/3247H03F3/195H03F2200/105H03F2200/408H03F2200/78H03F2200/99
    • An RF power amplifier system adjusts the supply voltage to the power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the RF input signal and an attenuated amplitude of the RF output signal of the power amplifier. A variable gain amplifier (VGA) adjusts the amplitude of the RF input signal, thus providing a second means of adjusting the amplitude of the output of the power amplifier. The gain of the VGA or the supply voltage to the power amplifier is controlled based on the AC components of the amplitude correction signal, while the DC components of the amplitude correction signal are blocked from controlling the VGA or the supply voltage to the power amplifier. The DC level of the gain control of the VGA, the average supply voltage to the power amplifier, or the closed loop gain of the overall amplitude correction loop is controlled separately by a compression control signal.
    • RF功率放大器系统基于指示RF输入信号的幅度与功率放大器的RF输出信号的衰减幅度之间的幅度差的幅度校正信号来调整功率放大器的电源电压。 可变增益放大器(VGA)调整RF输入信号的幅度,从而提供调整功率放大器的输出幅度的第二装置。 基于幅度校正信号的AC分量来控制VGA的增益或功率放大器的电源电压,同时阻止幅度校正信号的直流分量控制VGA或向功率放大器供电。 VGA的增益控制的直流电平,功率放大器的平均电源电压或整个幅度校正环路的闭环增益由压缩控制信号分别控制。
    • 4. 发明申请
    • AMPLIFIER COMPRESSION ADJUSTMENT CIRCUIT
    • 放大器压缩调整电路
    • US20100194476A1
    • 2010-08-05
    • US12366143
    • 2009-02-05
    • Serge Francois DrogiVikas Vinayak
    • Serge Francois DrogiVikas Vinayak
    • H03F3/45
    • H03F3/24H03F1/0227H03F1/0238H03F1/0266H03F1/0272H03F1/3247H03F3/195H03F2200/105H03F2200/408H03F2200/78H03F2200/99
    • An RF power amplifier system adjusts the supply voltage to the power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the RF input signal and an attenuated amplitude of the RF output signal of the power amplifier. A variable gain amplifier (VGA) adjusts the amplitude of the RF input signal, thus providing a second means of adjusting the amplitude of the output of the power amplifier. The gain of the VGA or the supply voltage to the power amplifier is controlled based on the AC components of the amplitude correction signal, while the DC components of the amplitude correction signal are blocked from controlling the VGA or the supply voltage to the power amplifier. The DC level of the gain control of the VGA, the average supply voltage to the power amplifier, or the closed loop gain of the overall amplitude correction loop is controlled separately by a compression control signal.
    • RF功率放大器系统基于指示RF输入信号的幅度与功率放大器的RF输出信号的衰减幅度之间的幅度差的幅度校正信号来调整功率放大器的电源电压。 可变增益放大器(VGA)调整RF输入信号的幅度,从而提供调整功率放大器的输出幅度的第二装置。 基于幅度校正信号的AC分量来控制VGA的增益或功率放大器的电源电压,同时阻止幅度校正信号的直流分量控制VGA或向功率放大器供电。 VGA的增益控制的直流电平,功率放大器的平均电源电压或整个幅度校正环路的闭环增益由压缩控制信号分别控制。
    • 5. 发明授权
    • Distortion-driven power amplifier power supply controller
    • 失真驱动功率放大器电源控制器
    • US07741903B2
    • 2010-06-22
    • US12175146
    • 2008-07-17
    • Vikas VinayakSerge Francois DrogiMartin Tomasz
    • Vikas VinayakSerge Francois DrogiMartin Tomasz
    • H03F1/32H03G3/20
    • H03G3/3042H03F1/0238H03F1/32
    • A power amplifier controller measures the distortion of a power amplifier output. Based upon the distortion measured, the supply voltage to the PA is adjusted in a control loop. In one embodiment, distortion is measured by computing the ratio of the measured power in the output frequencies outside the desired output channel to the measured power in the output frequencies within the desired channel. If the distortion measured from the PA is higher than a target distortion level, the power supply voltage is raised. If the distortion measured from the PA is lower than the target distortion level, the power supply voltage is reduced. Thus, the supply voltage to the PA is maintained at the lowest possible voltage level, improving the efficiency of the PA.
    • 功率放大器控制器测量功率放大器输出的失真。 基于测量的失真,在控制回路中调整到PA的电源电压。 在一个实施例中,通过计算期望输出通道外的输出频率中的测量功率与期望信道内的输出频率中的测量功率之比来测量失真。 如果从PA测量的失真高于目标失真电平,则电源电压升高。 如果从PA测量的失真低于目标失真电平,则电源电压降低。 因此,PA的供电电压保持在尽可能低的电压水平,提高了PA的效率。
    • 6. 发明授权
    • Error driven RF power amplifier control with increased efficiency
    • 错误驱动的射频功率放大器控制效率提高
    • US07466195B2
    • 2008-12-16
    • US11750821
    • 2007-05-18
    • Serge Francois DrogiVikas VinayakMartin Tomasz
    • Serge Francois DrogiVikas VinayakMartin Tomasz
    • H03G3/20
    • H03G3/004H03F1/0222H03F1/34
    • A power amplifier controller for adjusting a supply voltage to a power amplifier. The power amplifier controller adjusts the supply voltage so that distortion in an RF output signal corresponds to a predetermined limit. An amplitude error signal is generated by the power amplifier controller which represents a difference between an RF output signal and an attenuated RF output signal. The AC components of the amplitude error signal are processed to generate a deviation signal that represents the distortion in the RF output signal. The supply voltage to the power amplifier is increased when the deviation signal exceeds a distortion level control signal, and decreased when the deviation signal drops below the distortion level control signal.
    • 一种用于调节功率放大器的电源电压的功率放大器控制器。 功率放大器控制器调节电源电压,使得RF输出信号中的失真对应于预定极限。 幅度误差信号由功率放大器控制器产生,其表示RF输出信号和衰减的RF输出信号之间的差异。 对幅度误差信号的AC分量进行处理,生成表示RF输出信号失真的偏差信号。 当偏差信号超过失真电平控制信号时,功率放大器的电源电压增加,当偏差信号低于失真电平控制信号时,电源电压降低。
    • 7. 发明授权
    • Power amplifier power controller
    • 功率放大器功率控制器
    • US08731496B2
    • 2014-05-20
    • US12642519
    • 2009-12-18
    • Serge Francois DrogiMartin TomaszVikas Vinayak
    • Serge Francois DrogiMartin TomaszVikas Vinayak
    • H04B1/04
    • H03G3/20H03F3/189H03F3/20H03F3/24H03F2200/204H03F2200/207H03F2200/465H03G3/3042
    • A power amplifier power controller in the power amplifier system monitors various operating conditions of the power amplifier, and controls the output transmit power of the power amplifier by coordinated control of both the input drive level to the power amplifier and the gain of the power amplifier. The power amplifier power controller controls the input drive level to the power amplifier so that the input drive level does not change substantially while adjusting the gain of the power amplifier to maximize the transmit power. The power amplifier power controller may also adjust the input drive level by some portion of the overall change required to the power of the power amplifier, while adjusting the gain of the power amplifier by the remaining portion of such overall change.
    • 功率放大器系统中的功率放大器功率控制器监视功率放大器的各种工作状态,并通过协调控制功率放大器的输入驱动电平和功率放大器的增益来控制功率放大器的输出发射功率。 功率放大器功率控制器控制功率放大器的输入驱动电平,使得在调节功率放大器的增益以使发射功率最大化时,输入驱动电平基本上不变化。 功率放大器功率控制器还可以通过功率放大器的功率所需的整体变化的一部分来调整输入驱动电平,同时通过这种整体变化的剩余部分来调节功率放大器的增益。
    • 10. 发明授权
    • Error driven RF power amplifier control with increased efficiency
    • 错误驱动的射频功率放大器控制效率提高
    • US08022761B2
    • 2011-09-20
    • US12268978
    • 2008-11-11
    • Serge Francois DrogiVikas VinayakMartin Tomasz
    • Serge Francois DrogiVikas VinayakMartin Tomasz
    • H03G3/20
    • H03G3/004H03F1/0222H03F1/34
    • A power amplifier controller for adjusting a supply voltage to a power amplifier. The power amplifier controller adjusts the supply voltage so that distortion in an RF output signal corresponds to a predetermined limit. An amplitude error signal is generated by the power amplifier controller which represents a difference between an RF output signal and an attenuated RF output signal. The AC components of the amplitude error signal are processed to generate a deviation signal that represents the distortion in the RF output signal. The supply voltage to the power amplifier is increased when the deviation signal exceeds a distortion level control signal, and decreased when the deviation signal drops below the distortion level control signal.
    • 一种用于调节功率放大器的电源电压的功率放大器控制器。 功率放大器控制器调节电源电压,使得RF输出信号中的失真对应于预定极限。 幅度误差信号由功率放大器控制器产生,其表示RF输出信号和衰减的RF输出信号之间的差异。 对幅度误差信号的AC分量进行处理,生成表示RF输出信号失真的偏差信号。 当偏差信号超过失真电平控制信号时,功率放大器的电源电压增加,当偏差信号低于失真电平控制信号时,电源电压降低。