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公开(公告)号：US08190926B2
公开(公告)日：2012-05-29
申请号：US12249717
申请日：2008-10-10
CPC分类号： G06F1/26 , H02M1/15 , H02M3/1584 , H03F1/0238
摘要： A power supply system comprises a low-speed power supply and a high-speed power supply configured to operate in first and second frequency ranges, respectively, and generate first and second outputs, respectively. The lower end of the second frequency range is at least higher than a lower end of the first frequency range. A frequency blocking power combiner circuit combines the power from the first output with the power from the second output to generate a combined, third output for driving a load, while providing frequency-selective isolation between the first and second outputs. A feedback circuit is coupled to receive the combined, third output through a global feedback loop. The feedback circuit generates first and second power supply control signals for controlling the low-speed power supply and the high-speed power supply, respectively, based on a difference between the third output and the predetermined control signal.
摘要翻译： 电源系统包括分别在第一和第二频率范围内操作的低速电源和高速电源，分别产生第一和第二输出。 第二频率范围的下端至少高于第一频率范围的下限。 频率阻断功率组合器电路将来自第一输出的功率与来自第二输出的功率组合，以产生用于驱动负载的组合的第三输出，同时在第一和第二输出之间提供频率选择性隔离。 反馈电路被耦合以通过全局反馈回路接收组合的第三输出。 反馈电路基于第三输出和预定控制信号之间的差分别产生用于控制低速电源和高速电源的第一和第二电源控制信号。
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公开(公告)号：US20110148519A1
公开(公告)日：2011-06-23
申请号：US12642519
申请日：2009-12-18
IPC分类号： H03G3/20
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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13.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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14.发明申请RF POWER AMPLIFIER CONTROLLER CIRCUIT WITH COMPENSATION FOR OUTPUT IMPEDANCE MISMATCH 有权具有输出阻抗匹配补偿功能的射频功率放大器控制器电路公开(公告)号：US20100301934A1
公开(公告)日：2010-12-02
申请号：US12815209
申请日：2010-06-14
IPC分类号： H03G3/20
CPC分类号： H03F1/0227 , H02M2001/0045 , H03F1/0205 , H03F1/0238 , H03F1/3247 , H03F3/19 , H03F2200/451 , H03F2200/78 , H03F2200/99 , H03G3/004 , H03G3/3042
摘要： A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The amplitude control loop may also compensate for impedance mismatch with the load by increasing the power delivered from the power amplifier to the load, or decrease the output power of the power amplifier upon detection of excessive power dissipation in the power amplifier. The phase control loop adjusts the phase of the input signal based upon a phase error signal indicating a phase difference between phases of the input signal and the output signal to reduce phase distortion generated by the power amplifier.
摘要翻译： 功率放大器控制器电路基于指示输入信号的幅度与输出信号的衰减幅度之间的幅度差的振幅校正信号来控制功率放大器。 功率放大器控制器电路包括幅度控制回路和相位控制回路。 幅度控制环路根据振幅校正信号调整功率放大器的电源电压。 幅度控制回路还可以通过增加从功率放大器传递到负载的功率来补偿与负载的阻抗失配，或者在功率放大器检测到过大功率消耗时降低功率放大器的输出功率。 相位控制环路基于表示输入信号的相位与输出信号的相位差的相位误差信号来调整输入信号的相位，以减小由功率放大器产生的相位失真。
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公开(公告)号：US20100250993A1
公开(公告)日：2010-09-30
申请号：US12749260
申请日：2010-03-29
IPC分类号： G06F1/26
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.
摘要翻译： 电源系统包括提供第一输出的高速电源，与外部提供的DC电源或提供第二输出的低频电源一起工作。 频率阻断功率合成器电路组合第一和第二输出以产生第三输出以驱动负载，同时在第一和第二输出之间提供频率选择性隔离。 耦合到组合的第三输出的反馈电路将该组合的第三输出与预定的控制信号进行比较，并且基于第三输出和预定控制信号之间的差产生用于控制高速电源的控制信号。 反馈电路不控制直流电源或低频电源，只控制高速电源。
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公开(公告)号：US07783269B2
公开(公告)日：2010-08-24
申请号：US11858705
申请日：2007-09-20
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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17.发明申请RF POWER AMPLIFIER CONTROLLED BY ESTIMATED DISTORTION LEVEL OF OUTPUT SIGNAL OF POWER AMPLIFIER 有权功率放大器的输出信号的估计失真电平控制的射频功率放大器公开(公告)号：US20090117865A1
公开(公告)日：2009-05-07
申请号：US11935614
申请日：2007-11-06
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/0227 , H03F1/0238 , H03F1/0244 , H03F1/3247 , H03F2200/102 , H03F2200/336 , H03F2201/3231
摘要： A radio frequency (RF) power amplifier system is provided, in which a distortion of the RF output signal from the power amplifier is estimated by comparing the RF output signal with reference modulation information. The supply voltage to the power amplifier is adjusted so that the estimated distortion of the RF output signal corresponds to a predetermined distortion level. The predetermined distortion level is set to represent an acceptable distortion level at the RF output signal.
摘要翻译： 提供射频（RF）功率放大器系统，其中通过将RF输出信号与参考调制信息进行比较来估计来自功率放大器的RF输出信号的失真。 对功率放大器的电源电压进行调整，使得RF输出信号的估计失真对应于预定的失真水平。 预定的失真电平被设置为表示RF输出信号处的可接受的失真电平。
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公开(公告)号：US20090081968A1
公开(公告)日：2009-03-26
申请号：US11858705
申请日：2007-09-20
IPC分类号： H03G3/20
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：US20090068966A1
公开(公告)日：2009-03-12
申请号：US12268978
申请日：2008-11-11
IPC分类号： H04B1/04
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：US20120223777A1
公开(公告)日：2012-09-06
申请号：US13461697
申请日：2012-05-01
IPC分类号： H03F3/04
CPC分类号： H03F1/0211 , H03F1/0227 , H03F1/302 , H03F1/3247 , H03F1/56 , H03F3/189 , H03F3/195 , H03F3/245 , H03F2200/102 , H03F2200/105 , H03F2200/192 , H03F2200/195 , H03F2200/204 , H03F2200/207 , H03F2200/375 , H03F2200/387 , H03F2200/411 , H03F2200/435 , H03F2200/465 , H03F2200/504 , H03F2200/78 , H03G3/3042
摘要： A radio frequency (RF) power amplifier system adjusts the supply voltage provided to a power amplifier (PA) adaptively, responsive to the measured or estimated power of the RF output signal of the PA. The RF PA system includes a power amplifier (PA) which receives and amplifies an RF input signal to generate an RF output signal at a level suitable for transmission to an antenna. A PA supply voltage controller generates a supply voltage control signal, which is used to control the supply voltage to the final stage of the PA. The supply voltage control signal is generated responsive to the measured or estimated power of the PA RF output signal, and also may be responsive to a parameter indicative of impedance mismatch experienced at the PA output. By controlling this supply voltage to the RF PA, the efficiency of the PA is improved.
摘要翻译： 射频（RF）功率放大器系统响应于PA的RF输出信号的测量或估计功率，自适应地调整提供给功率放大器（PA）的电源电压。 RF PA系统包括功率放大器（PA），功率放大器（PA）接收和放大RF输入信号以产生适于传输到天线的电平的RF输出信号。 PA电源电压控制器产生电源电压控制信号，用于控制PA的最终级的电源电压。 电源电压控制信号响应于PA RF输出信号的测量或估计功率产生，并且还可以响应于指示在PA输出处经历的阻抗失配的参数。 通过控制RF PA的电源电压，PA的效率得到提高。
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