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公开(公告)号：WO2012109161A3
公开(公告)日：2012-11-15
申请号：PCT/US2012024019
申请日：2012-02-06
Applicant: SKYWORKS SOLUTIONS INC , NUJIRA LTD , RIPLEY DAVID STEVEN , KHESBAK SABAH , BARTRAM BENJAMIN , COBLEY KEVIN LEE , HENSHAW ROBERT ASTLE , HILDERSLEY JULIAN , THOMPSON ROBERT JOHN
Inventor： RIPLEY DAVID STEVEN , KHESBAK SABAH , BARTRAM BENJAMIN , COBLEY KEVIN LEE , HENSHAW ROBERT ASTLE , HILDERSLEY JULIAN , THOMPSON ROBERT JOHN
CPC classification number: H04B17/13 , H03F1/0211 , H03F1/0216 , H03F1/0222 , H03F1/0227 , H03F1/025 , H03F1/30 , H03F1/301 , H03F1/32 , H03F1/56 , H03F3/19 , H03F3/193 , H03F3/21 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/102 , H03F2200/108 , H03F2200/111 , H03F2200/15 , H03F2200/387 , H03F2200/405 , H03F2200/429 , H03F2200/451 , H03F2200/462 , H03F2200/465 , H03F2200/471 , H03F2200/507 , H03F2200/511 , H03F2203/21106 , H03G3/30 , H03G3/3036 , H03G3/3042 , H04B1/40 , H04W88/02
Abstract: Apparatus and methods for envelope tracking calibration are provided. In one embodiment, a method of calibrating an envelope tracker having an envelope shaping table generated at a desired gain compression of a power amplifier is provided. The method includes generating a supply voltage for the power amplifier using the envelope tracker, operating the supply voltage of the power amplifier at a first voltage level associated with substantially no gain compression of the power amplifier, and measuring an output power of the power amplifier at the first voltage level. The method further includes decreasing a voltage level of the supply voltage one or more times and measuring the output power at each voltage level, determining a second voltage level of the power amplifier associated with a gain compression equal to about that of the desired gain compression, and calibrating the envelope tracker based on the determination.
Abstract translation: 提供用于包络跟踪校准的装置和方法。 在一个实施例中，提供了一种校准具有在功率放大器的期望增益压缩下产生的包络整形表的包络跟踪器的方法。 该方法包括使用包络跟踪器产生用于功率放大器的电源电压，在与功率放大器基本上没有增益压缩相关联的第一电压电平下操作功率放大器的电源电压，以及测量功率放大器的输出功率 第一个电压电平。 该方法进一步包括将电源电压的电压电平降低一次或多次，并测量每个电压电平处的输出功率，确定与等于期望增益压缩的增益压缩相关联的增益压缩相关联的功率放大器的第二电压电平， 并根据确定校准包络跟踪器。
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Patent Agency Ranking
公开(公告)号：WO2012148918A3
公开(公告)日：2012-11-01
申请号：PCT/US2012/034820
申请日：2012-04-24
Applicant: SKYWORKS SOLUTIONS, INC. , BALTEANU, Florinel, G. , KHESBAK, Sabah , TKACHENKO, Yevgeniy, A. , THOMPSON, Robert, John , RIPLEY, David, Steven
Inventor： BALTEANU, Florinel, G. , KHESBAK, Sabah , TKACHENKO, Yevgeniy, A. , THOMPSON, Robert, John , RIPLEY, David, Steven
Abstract: Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier (32) and an envelope tracker (30) is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter (73) for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module (78, 79) for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier.
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公开(公告)号：WO2012148918A2
公开(公告)日：2012-11-01
申请号：PCT/US2012034820
申请日：2012-04-24
Applicant: SKYWORKS SOLUTIONS INC , BALTEANU FLORINEL G , KHESBAK SABAH , TKACHENKO YEVGENIY A , THOMPSON ROBERT JOHN , RIPLEY DAVID STEVEN
Inventor： BALTEANU FLORINEL G , KHESBAK SABAH , TKACHENKO YEVGENIY A , THOMPSON ROBERT JOHN , RIPLEY DAVID STEVEN
CPC classification number: H03F1/0205 , H03F1/02 , H03F1/0211 , H03F1/0227 , H03F1/0244 , H03F1/302 , H03F1/56 , H03F3/19 , H03F3/21 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/102 , H03F2200/108 , H03F2200/111 , H03F2200/294 , H03F2200/336 , H03F2200/387 , H03F2200/414 , H03F2200/417 , H03F2200/451 , H03F2200/504 , H03F2200/555 , H03F2203/21106 , H03F2203/7221 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04B2001/045
Abstract: Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier (32) and an envelope tracker (30) is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter (73) for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module (78, 79) for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier.
Abstract translation: 公开了用于包络跟踪的装置和方法。 在一个实施例中，提供了包括功率放大器（32）和封套跟踪器（30）的功率放大器系统。 功率放大器被配置为放大射频（RF）信号，并且包络跟踪器被配置为使用RF信号的包络来控制功率放大器的电源电压。 信封跟踪器包括用于从电池电压产生降压电压的降压转换器（73）和用于基于RF信号的包络调节降压电压的数/模转换（DAC）模块（78,79） 产生功率放大器的电源电压。
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公开(公告)号：WO2012109161A2
公开(公告)日：2012-08-16
申请号：PCT/US2012/024019
申请日：2012-02-06
Applicant: SKYWORKS SOLUTIONS, INC. , NUJIRA LTD , RIPLEY, David, Steven , KHESBAK, Sabah , BARTRAM, Benjamin , COBLEY, Kevin, Lee , HENSHAW, Robert, Astle , HILDERSLEY, Julian , THOMPSON, Robert, John
Inventor： RIPLEY, David, Steven , KHESBAK, Sabah , BARTRAM, Benjamin , COBLEY, Kevin, Lee , HENSHAW, Robert, Astle , HILDERSLEY, Julian , THOMPSON, Robert, John
CPC classification number: H04B17/13 , H03F1/0211 , H03F1/0216 , H03F1/0222 , H03F1/0227 , H03F1/025 , H03F1/30 , H03F1/301 , H03F1/32 , H03F1/56 , H03F3/19 , H03F3/193 , H03F3/21 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/102 , H03F2200/108 , H03F2200/111 , H03F2200/15 , H03F2200/387 , H03F2200/405 , H03F2200/429 , H03F2200/451 , H03F2200/462 , H03F2200/465 , H03F2200/471 , H03F2200/507 , H03F2200/511 , H03F2203/21106 , H03G3/30 , H03G3/3036 , H03G3/3042 , H04B1/40 , H04W88/02
Abstract: Apparatus and methods for envelope tracking calibration are provided. In one embodiment, a method of calibrating an envelope tracker having an envelope shaping table generated at a desired gain compression of a power amplifier is provided. The method includes generating a supply voltage for the power amplifier using the envelope tracker, operating the supply voltage of the power amplifier at a first voltage level associated with substantially no gain compression of the power amplifier, and measuring an output power of the power amplifier at the first voltage level. The method further includes decreasing a voltage level of the supply voltage one or more times and measuring the output power at each voltage level, determining a second voltage level of the power amplifier associated with a gain compression equal to about that of the desired gain compression, and calibrating the envelope tracker based on the determination.
Abstract translation: 提供了用于包络跟踪校准的设备和方法。 在一个实施例中，提供了一种校准具有在功率放大器的期望增益压缩下生成的包络成形表的包络跟踪器的方法。 该方法包括使用包络跟踪器产生用于功率放大器的供电电压，将功率放大器的供电电压操作在与基本上没有功率放大器的增益压缩相关联的第一电压电平，并且测量功率放大器的输出功率在 第一个电压等级。 该方法进一步包括将电源电压的电压电平降低一次或多次，并测量每个电压电平的输出功率，确定与增益压缩相关联的功率放大器的第二电压电平，该增益压缩等于约期望增益压缩的增益压缩， 并基于该确定校准包络跟踪器。
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公开(公告)号：WO2012082787A1
公开(公告)日：2012-06-21
申请号：PCT/US2011/064720
申请日：2011-12-13
Applicant: SKYWORKS SOLUTIONS, INC. , KHESBAK, Sabah
Inventor： KHESBAK, Sabah
CPC classification number: H03F1/0222 , H03F1/0211 , H03F1/0227 , H03F1/0277 , H03F1/0288 , H03F1/07 , H03F1/305 , H03F1/56 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/102 , H03F2200/18 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03F2200/429 , H03F2200/432 , H03F2200/451 , H03F2200/504 , H03F2200/516 , H03F2203/21106 , H03F2203/7209 , H03F2203/7221 , H03F2203/7236
Abstract: Apparatus and methods for capacitive load reduction are disclosed. In one embodiment, a power amplifier system includes a plurality of power amplifiers and an envelope tracking module for generating a supply voltage for the power amplifiers. The power amplifier system further includes a switch and a decoupling capacitor operatively associated with a first power amplifier of the system. The switch is configured to electrically float an end of the decoupling capacitor when the first power amplifier is disabled so as to reduce capacitive loading of the envelope tracker and to operate as a dampening resistor when the power amplifier is enabled so as to improve the stability of the system.
Abstract translation: 公开了用于容性负载降低的装置和方法。 在一个实施例中，功率放大器系统包括多个功率放大器和用于产生功率放大器的电源电压的包络跟踪模块。 功率放大器系统还包括与系统的第一功率放大器可操作地相关联的开关和去耦电容器。 该开关被配置为在禁用第一功率放大器时电浮动去耦电容器的一端，以便降低包络跟踪器的容性负载并且当功率放大器被使能时用作阻尼电阻器，以便提高稳定性 系统。
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公开(公告)号：WO2012082632A1
公开(公告)日：2012-06-21
申请号：PCT/US2011/064440
申请日：2011-12-12
Applicant: SKYWORKS SOLUTIONS, INC. , KHESBAK, Sabah , CHIN, San
Inventor： KHESBAK, Sabah , CHIN, San
CPC classification number: H03F1/0222 , H03F3/245 , H03F2200/102 , H03F2200/18 , H03F2200/504
Abstract: Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a power amplifier system includes a power amplifier configured to amplify a radio frequency (RF) signal and a bias control circuit for generating a bias current for the power amplifier. The bias control circuit is configured to receive an envelope of the RF signal and to change an amplitude of the bias current based at least in part on the envelope.
Abstract translation: 公开了用于偏置功率放大器的装置和方法。 在一个实施例中，功率放大器系统包括被配置为放大射频（RF）信号的功率放大器和用于产生功率放大器的偏置电流的偏置控制电路。 偏置控制电路被配置为接收RF信号的包络并且至少部分地基于包络来改变偏置电流的幅度。
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