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公开(公告)号：US08140028B2
公开(公告)日：2012-03-20
申请号：US12117191
申请日：2008-05-08
CPC分类号： H03F3/245 , H03F1/0222 , H03F3/195 , H03F2200/294 , H03F2200/324 , H03F2200/451 , H03F2200/504
摘要： A low noise RF driver circuit including at least two series-coupled driver stages which receive a frequency modulated signal and an amplitude modulated signal that is applied to the supply voltage input of the driver stages, and provide a combined output signal. The RF driver circuit can be implemented in CMOS technology and integrated with other components of an RF communication subsystem, such as an RF transceiver circuit and power amplifier. Each driver stage includes a complementary pair of transistors with source degeneration resistors for linearity and gain control.
摘要翻译： 包括至少两个串联耦合的驱动器级的低噪声RF驱动器电路，其接收频率调制信号和施加到驱动器级的电源电压输入的幅度调制信号，并提供组合的输出信号。 RF驱动器电路可以以CMOS技术实现并且与RF通信子系统的其他部件（例如RF收发器电路和功率放大器）集成。 每个驱动级包括一对互补的晶体管，其具有用于线性和增益控制的源极退化电阻。
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公开(公告)号：US08351873B2
公开(公告)日：2013-01-08
申请号：US13419699
申请日：2012-03-14
CPC分类号： H03F3/245 , H03F1/0222 , H03F3/195 , H03F2200/294 , H03F2200/324 , H03F2200/451 , H03F2200/504
摘要： A low noise RF driver circuit including at least two series-coupled driver stages which receive a frequency modulated signal and an amplitude modulated signal that is applied to the supply voltage input of the driver stages, and provide a combined output signal. The RF driver circuit can be implemented in CMOS technology and integrated with other components of an RF communication subsystem, such as an RF transceiver circuit and power amplifier. Each driver stage includes a complementary pair of transistors with source degeneration resistors for linearity and gain control.
摘要翻译： 包括至少两个串联耦合的驱动器级的低噪声RF驱动器电路，其接收频率调制信号和施加到驱动器级的电源电压输入的幅度调制信号，并提供组合的输出信号。 RF驱动器电路可以以CMOS技术实现并且与RF通信子系统的其他部件（例如RF收发器电路和功率放大器）集成。 每个驱动级包括一对互补的晶体管，其具有用于线性和增益控制的源极退化电阻。
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公开(公告)号：US07493093B2
公开(公告)日：2009-02-17
申请号：US11159926
申请日：2005-06-23
CPC分类号： H03G3/3042 , H03G2201/702 , H04B1/04 , H04B2001/0416
摘要： A method and apparatus for power detection in a multi-mode communication device configured for operation in different modes or frequency bands. A detector monitors the power level of an amplified outgoing signal. The detector may be configured with a switch and two or more samplers. Responsive to the mode of operation, the detector adopts an optimal configuration to generate a power level feedback signal, which is provided to a digital signal processor or controller. Comparison of the power level feedback signal to a target value may occur to generate an amplifier control signal. The amplifier control signal controls the gain, applied by an amplifier, to the outgoing signal. During operation, the system monitors for a change in the mode of operation and upon responsive to a change, generates a switch control signal to reconfigure the detector configuration to match the new mode of operation.
摘要翻译： 一种用于在不同模式或频带中操作的多模式通信设备中的功率检测方法和装置。 检测器监视放大输出信号的功率电平。 检测器可以配置有开关和两个或更多个采样器。 响应于操作模式，检测器采用最佳配置来产生功率电平反馈信号，该信号提供给数字信号处理器或控制器。 功率电平反馈信号与目标值的比较可能发生，以产生放大器控制信号。 放大器控制信号将由放大器施加的增益控制为输出信号。 在操作期间，系统监视操作模式的改变，并且响应于改变，产生开关控制信号以重新配置检测器配置以匹配新的操作模式。
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公开(公告)号：US08717101B2
公开(公告)日：2014-05-06
申请号：US13468749
申请日：2012-05-10
申请人： Ping Li , Paul T. DiCarlo
发明人： Ping Li , Paul T. DiCarlo
IPC分类号： H03G3/30
CPC分类号： H03G3/3042 , H03F1/0205 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/24 , H03F2200/129 , H03F2200/18 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H03G3/007 , H04B1/3827
摘要： Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a method of biasing a power amplifier includes shaping an enable signal using a time-dependent signal generator to generate a control current, amplifying the control current using a current amplifier to generate a correction current, and generating a bias current for a power amplifier using a primary biasing circuit. The primary biasing circuit is configured to use the correction current to correct for a variation in gain of the power amplifier when the power amplifier is enabled.
摘要翻译： 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，偏置功率放大器的方法包括使用时间相关的信号发生器对使能信号进行整形以产生控制电流，使用电流放大器放大控制电流以产生校正电流，并产生用于 功率放大器使用主偏置电路。 主要偏置电路被配置为当功率放大器被使能时，使用校正电流来校正功率放大器的增益的变化。
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公开(公告)号：US20120286873A1
公开(公告)日：2012-11-15
申请号：US13468749
申请日：2012-05-10
申请人： Ping Li , Paul T. DiCarlo
发明人： Ping Li , Paul T. DiCarlo
IPC分类号： H03G3/30
CPC分类号： H03G3/3042 , H03F1/0205 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/24 , H03F2200/129 , H03F2200/18 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H03G3/007 , H04B1/3827
摘要： Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a method of biasing a power amplifier includes shaping an enable signal using a time-dependent signal generator to generate a control current, amplifying the control current using a current amplifier to generate a correction current, and generating a bias current for a power amplifier using a primary biasing circuit. The primary biasing circuit is configured to use the correction current to correct for a variation in gain of the power amplifier when the power amplifier is enabled.
摘要翻译： 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，偏置功率放大器的方法包括使用时间相关的信号发生器对使能信号进行整形以产生控制电流，使用电流放大器放大控制电流以产生校正电流，并产生用于 功率放大器使用主偏置电路。 主要偏置电路被配置为当功率放大器被使能时，使用校正电流来校正功率放大器的增益的变化。
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公开(公告)号：US20080299916A1
公开(公告)日：2008-12-04
申请号：US12117191
申请日：2008-05-08
CPC分类号： H03F3/245 , H03F1/0222 , H03F3/195 , H03F2200/294 , H03F2200/324 , H03F2200/451 , H03F2200/504
摘要： A low noise RF driver circuit including at least two series-coupled driver stages which receive a frequency modulated signal and an amplitude modulated signal that is applied to the supply voltage input of the driver stages, and provide a combined output signal. The RF driver circuit can be implemented in CMOS technology and integrated with other components of an RF communication subsystem, such as an RF transceiver circuit and power amplifier. Each driver stage includes a complementary pair of transistors with source degeneration resistors for linearity and gain control.
摘要翻译： 包括至少两个串联耦合的驱动器级的低噪声RF驱动器电路，其接收频率调制信号和施加到驱动器级的电源电压输入的幅度调制信号，并提供组合的输出信号。 RF驱动器电路可以以CMOS技术实现并且与RF通信子系统的其他部件（例如RF收发器电路和功率放大器）集成。 每个驱动级包括一对互补的晶体管，其具有用于线性和增益控制的源极退化电阻。
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公开(公告)号：US20080284520A1
公开(公告)日：2008-11-20
申请号：US12116980
申请日：2008-05-08
CPC分类号： G01R21/10 , H03F3/191 , H03F3/245 , H03F2200/207 , H03F2200/393 , H03F2200/456 , H03F2200/465 , H03G3/3042
摘要： A system for detecting power output of a power amplifier includes a first power detector configured to detect a forward power output of a power amplifier, the first power detector configured to provide a first power detector output, and a second power detector configured to receive a collector parameter signal and detect a collector parameter therefrom, the second power detector also configured to provide a second power detector output.
摘要翻译： 一种用于检测功率放大器的功率输出的系统包括：第一功率检测器，被配置为检测功率放大器的正向功率输出，第一功率检测器被配置为提供第一功率检测器输出，第二功率检测器被配置为接收集电极 参数信号并从其检测收集器参数，第二功率检测器还被配置为提供第二功率检测器输出。
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公开(公告)号：US08385853B2
公开(公告)日：2013-02-26
申请号：US12116980
申请日：2008-05-08
CPC分类号： G01R21/10 , H03F3/191 , H03F3/245 , H03F2200/207 , H03F2200/393 , H03F2200/456 , H03F2200/465 , H03G3/3042
摘要： A system for detecting power output of a power amplifier includes a first power detector configured to detect a forward power output of a power amplifier, the first power detector configured to provide a first power detector output, and a second power detector configured to receive a collector parameter signal and detect a collector parameter therefrom, the second power detector also configured to provide a second power detector output.
摘要翻译： 一种用于检测功率放大器的功率输出的系统包括：第一功率检测器，被配置为检测功率放大器的正向功率输出，第一功率检测器被配置为提供第一功率检测器输出，第二功率检测器被配置为接收集电极 参数信号并从其检测收集器参数，第二功率检测器还被配置为提供第二功率检测器输出。
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公开(公告)号：US20120171971A1
公开(公告)日：2012-07-05
申请号：US13419699
申请日：2012-03-14
CPC分类号： H03F3/245 , H03F1/0222 , H03F3/195 , H03F2200/294 , H03F2200/324 , H03F2200/451 , H03F2200/504
摘要： A low noise RF driver circuit including at least two series-coupled driver stages which receive a frequency modulated signal and an amplitude modulated signal that is applied to the supply voltage input of the driver stages, and provide a combined output signal. The RF driver circuit can be implemented in CMOS technology and integrated with other components of an RF communication subsystem, such as an RF transceiver circuit and power amplifier. Each driver stage includes a complementary pair of transistors with source degeneration resistors for linearity and gain control.
摘要翻译： 包括至少两个串联耦合的驱动器级的低噪声RF驱动器电路，其接收频率调制信号和施加到驱动器级的电源电压输入的幅度调制信号，并提供组合的输出信号。 RF驱动器电路可以以CMOS技术实现并且与RF通信子系统的其他部件（例如RF收发器电路和功率放大器）集成。 每个驱动级包括一对互补的晶体管，其具有用于线性和增益控制的源极退化电阻。
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