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1.发明授权公开(公告)号：US08278904B2
公开(公告)日：2012-10-02
申请号：US12508505
申请日：2009-07-23
IPC分类号： G05F5/00
CPC分类号： H03F3/24 , H03F1/0244 , H03F1/0277 , H03F1/32 , H03F2200/451 , H03F2200/507 , H03F2200/511 , H03F2200/555 , Y10T307/696
摘要： A power supply system uses improved Class G amplifier architecture for high bandwidth operation with low distortion. The power supply system switches between multiple power supply rails, depending on the signal level handled by the power supply system. The lowest usable supply rail voltage is chosen to minimize power dissipation in the output driver, thus optimizing efficiency. Each supply rail has an associated driver capable of sourcing current to the amplifier output. When a supply rail is selected, its associated driver is enabled and other driver(s) not associated with the selected supply rail are disabled via separate disable control signals. The disabling of the deselected driver may be delayed until current above a predetermined threshold is sensed at the output of the enabled driver. In addition, the frequency of switching between the power rails may be limited via various means designed to limit distortion in the power supply system.
摘要翻译： 电源系统使用改进的G类放大器架构，实现高带宽操作，低失真。 电源系统根据电源系统处理的信号电平在多个电源轨之间切换。 选择最低可用的电源轨电压以最小化输出驱动器中的功耗，从而优化效率。 每个电源轨都有一个相关的驱动器，能够将电流提供给放大器输出。 当选择供电轨时，其关联的驱动器被使能，并且与选择的电源轨不相关的其他驱动器通过单独的禁用控制信号被禁用。 可以延迟取消选择的驱动器的禁用，直到在启用的驱动器的输出处感测到高于预定阈值的电流。 此外，电力轨道之间的切换频率可以通过设计成限制供电系统中的失真的各种手段来限制。
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2.发明申请公开(公告)号：US20110018351A1
公开(公告)日：2011-01-27
申请号：US12508505
申请日：2009-07-23
IPC分类号： H02J1/00
CPC分类号： H03F3/24 , H03F1/0244 , H03F1/0277 , H03F1/32 , H03F2200/451 , H03F2200/507 , H03F2200/511 , H03F2200/555 , Y10T307/696
摘要： A power supply system uses improved Class G amplifier architecture for high bandwidth operation with low distortion. The power supply system switches between multiple power supply rails, depending on the signal level handled by the power supply system. The lowest usable supply rail voltage is chosen to minimize power dissipation in the output driver, thus optimizing efficiency. Each supply rail has an associated driver capable of sourcing current to the amplifier output. When a supply rail is selected, its associated driver is enabled and other driver(s) not associated with the selected supply rail are disabled via separate disable control signals. The disabling of the deselected driver may be delayed until current above a predetermined threshold is sensed at the output of the enabled driver. In addition, the frequency of switching between the power rails may be limited via various means designed to limit distortion in the power supply system.
摘要翻译： 电源系统使用改进的G类放大器架构，实现高带宽操作，低失真。 电源系统根据电源系统处理的信号电平在多个电源轨之间切换。 选择最低可用的电源轨电压以最小化输出驱动器中的功耗，从而优化效率。 每个电源轨都有一个相关的驱动器，能够将电流提供给放大器输出。 当选择供电轨时，其关联的驱动器被使能，并且与选择的电源轨不相关的其他驱动器通过单独的禁用控制信号被禁用。 可以延迟取消选择的驱动器的禁用，直到在启用的驱动器的输出处感测到高于预定阈值的电流。 此外，电力轨道之间的切换频率可以通过设计成限制供电系统中的失真的各种手段来限制。
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公开(公告)号：US08050638B2
公开(公告)日：2011-11-01
申请号：US12860754
申请日：2010-08-20
IPC分类号： H04B1/04
CPC分类号： H03F1/32 , H03F1/0222 , H03F1/0233 , H03F1/3241 , H03F3/24 , H03F2200/324 , H03F2200/451 , H03F2200/78 , H03F2200/99 , H04B2001/0425
摘要： A power amplifier controller controls a power amplifier and is coupled to a polar modulator. The polar modulator generates an amplitude component and a phase-modulated component of the desired RF modulated signal, and outputs to the power amplifier controller. The power amplifier controller regenerates a combined phase and amplitude modulated RF signal to generate an input signal to a power amplifier by adjusting the gain of a VGA based on the amplitude component of the desired RF modulated signal. Concurrently, the power amplifier controller both controls an adjusted supply voltage to the PA and adjusts the gain of the VGA based upon an amplitude correction signal or amplitude error signal.
摘要翻译： 功率放大器控制器控制功率放大器并耦合到极性调制器。 极性调制器产生所需RF调制信号的幅度分量和相位调制分量，并输出到功率放大器控制器。 功率放大器控制器通过基于期望的RF调制信号的幅度分量调整VGA的增益来再生组合的相位和幅度调制RF信号以产生到功率放大器的输入信号。 同时，功率放大器控制器控制PA调节的电源电压，并根据振幅校正信号或振幅误差信号调整VGA的增益。
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公开(公告)号：US20100311365A1
公开(公告)日：2010-12-09
申请号：US12860754
申请日：2010-08-20
IPC分类号： H04W88/02
CPC分类号： H03F1/32 , H03F1/0222 , H03F1/0233 , H03F1/3241 , H03F3/24 , H03F2200/324 , H03F2200/451 , H03F2200/78 , H03F2200/99 , H04B2001/0425
摘要： A power amplifier controller controls a power amplifier and is coupled to a polar modulator. The polar modulator generates an amplitude component and a phase-modulated component of the desired RF modulated signal, and outputs to the power amplifier controller. The power amplifier controller regenerates a combined phase and amplitude modulated RF signal to generate an input signal to a power amplifier by adjusting the gain of a VGA based on the amplitude component of the desired RF modulated signal. Concurrently, the power amplifier controller both controls an adjusted supply voltage to the PA and adjusts the gain of the VGA based upon an amplitude correction signal or amplitude error signal.
摘要翻译： 功率放大器控制器控制功率放大器并耦合到极性调制器。 极性调制器产生所需RF调制信号的幅度分量和相位调制分量，并输出到功率放大器控制器。 功率放大器控制器通过基于期望的RF调制信号的幅度分量调整VGA的增益来再生组合的相位和幅度调制RF信号以产生到功率放大器的输入信号。 同时，功率放大器控制器控制PA调节的电源电压，并根据振幅校正信号或振幅误差信号调整VGA的增益。
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公开(公告)号：US07741903B2
公开(公告)日：2010-06-22
申请号：US12175146
申请日：2008-07-17
CPC分类号： H03G3/3042 , H03F1/0238 , H03F1/32
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07466195B2
公开(公告)日：2008-12-16
申请号：US11750821
申请日：2007-05-18
IPC分类号： H03G3/20
CPC分类号： H03G3/004 , H03F1/0222 , H03F1/34
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20090021303A1
公开(公告)日：2009-01-22
申请号：US12175146
申请日：2008-07-17
CPC分类号： H03G3/3042 , H03F1/0238 , H03F1/32
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08731496B2
公开(公告)日：2014-05-20
申请号：US12642519
申请日：2009-12-18
IPC分类号： H04B1/04
CPC分类号： H03G3/20 , H03F3/189 , H03F3/20 , H03F3/24 , H03F2200/204 , H03F2200/207 , H03F2200/465 , H03G3/3042
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08405456B2
公开(公告)日：2013-03-26
申请号：US12749260
申请日：2010-03-29
IPC分类号： H03G3/20
CPC分类号： H03F1/0238 , G05F1/575 , H03C1/00 , H03F1/0211 , H03F1/0222 , H03F1/0233 , H03F3/189 , H03F3/19 , H03F3/20 , H03F3/211 , H03F2200/411 , H03F2200/451 , H03F2200/504 , H03F2203/21193
摘要： A power supply system includes a high-speed power supply providing a first output, operating in conjunction with an externally supplied DC source or low frequency power supply which provides a second output. A frequency blocking power combiner circuit combines the first and second outputs to generate a third output in order to drive a load, while providing frequency-selective isolation between the first and second outputs. A feedback circuit coupled to the combined, third output compares this combined, third output with a predetermined control signal and generates a control signal for controlling the high-speed power supply, based on a difference between the third output and the predetermined control signal. The feedback circuit does not control the DC source or the low frequency power supply, but controls only the high-speed power supply.
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公开(公告)号：US08022761B2
公开(公告)日：2011-09-20
申请号：US12268978
申请日：2008-11-11
IPC分类号： H03G3/20
CPC分类号： H03G3/004 , H03F1/0222 , H03F1/34
摘要： 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.
摘要翻译： 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。
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