POWER CONTROL OF RECONFIGURABLE OUTPHASING CHIREIX AMPLIFIERS AND METHODS
    1.
    发明申请
    POWER CONTROL OF RECONFIGURABLE OUTPHASING CHIREIX AMPLIFIERS AND METHODS 有权
    可重构输出CHIREIX放大器的功率控制和方法

    公开(公告)号:US20110273236A1

    公开(公告)日:2011-11-10

    申请号:US13052722

    申请日:2011-03-21

    IPC分类号: H03F3/68

    CPC分类号: H03F1/0294

    摘要: Various embodiments relate to a reconfigurable integrated digital Chireix out-phasing power amplifier for use in high power base stations is described and a related method of said design. The power amplifier may include a power transistor circuitry having plurality of power transistors and shunt-series circuitry (L1C1, L2C2), a broadband combiner having Chireix compensation elements, and an impedance matching filter. In one embodiment, the power amplifier is implemented in a real switch-mode to facilitate integration of the Chireix compensation elements so as to make the Chireix power amplifier tunable. A method of driving Chireix power amplifier structure is also described. In some embodiments, a variable supply voltage may power the transistor circuitry based on the desired output power of the Chireix power amplifier. In some embodiments, the variable supply voltage may depend upon an out-phasing angle between the two drivers in the transistor circuitry.

    摘要翻译: 各种实施例涉及用于高功率基站的可重构集成数字Chireix异相功率放大器,并描述了所述设计的相关方法。 功率放大器可以包括具有多个功率晶体管和分流串联电路(L1C1,L2C2)的功率晶体管电路,具有Chireix补偿元件的宽带组合器和阻抗匹配滤波器。 在一个实施例中,功率放大器以实际开关模式实现,以便于Chireix补偿元件的集成,以使Chireix功率放大器可调谐。 还描述了驱动Chireix功率放大器结构的方法。 在一些实施例中,可变电源电压可以基于Chireix功率放大器的期望输出功率为晶体管电路供电。 在一些实施例中,可变电源电压可以取决于晶体管电路中的两个驱动器之间的相位角。

    Power control of reconfigurable outphasing chireix amplifiers and methods
    2.
    发明授权
    Power control of reconfigurable outphasing chireix amplifiers and methods 有权
    可重新配置的外置chireix放大器和方法的功率控制

    公开(公告)号:US08174322B2

    公开(公告)日:2012-05-08

    申请号:US13052722

    申请日:2011-03-21

    IPC分类号: H03F3/68

    CPC分类号: H03F1/0294

    摘要: Various embodiments relate to a reconfigurable integrated digital Chireix out-phasing power amplifier for use in high power base stations is described and a related method of said design. The power amplifier may include a power transistor circuitry having plurality of power transistors and shunt-series circuitry (L1C1, L2C2), a broadband combiner having Chireix compensation elements, and an impedance matching filter. In one embodiment, the power amplifier is implemented in a real switch-mode to facilitate integration of the Chireix compensation elements so as to make the Chireix power amplifier tunable. A method of driving Chireix power amplifier structure is also described. In some embodiments, a variable supply voltage may power the transistor circuitry based on the desired output power of the Chireix power amplifier. In some embodiments, the variable supply voltage may depend upon an out-phasing angle between the two drivers in the transistor circuitry.

    摘要翻译: 各种实施例涉及用于高功率基站的可重构集成数字Chireix异相功率放大器,并描述了所述设计的相关方法。 功率放大器可以包括具有多个功率晶体管和分流串联电路(L1C1,L2C2)的功率晶体管电路,具有Chireix补偿元件的宽带组合器和阻抗匹配滤波器。 在一个实施例中,功率放大器以实际开关模式实现,以便于Chireix补偿元件的集成,以使Chireix功率放大器可调谐。 还描述了驱动Chireix功率放大器结构的方法。 在一些实施例中,可变电源电压可以基于Chireix功率放大器的期望输出功率为晶体管电路供电。 在一些实施例中,可变电源电压可以取决于晶体管电路中的两个驱动器之间的相位角。

    Variable duty cycle generation for out-phasing and PWM power amplifiers
    5.
    发明授权
    Variable duty cycle generation for out-phasing and PWM power amplifiers 失效
    用于外相和PWM功率放大器的可变占空比生成

    公开(公告)号:US08570101B2

    公开(公告)日:2013-10-29

    申请号:US13128197

    申请日:2009-11-06

    IPC分类号: H03F3/38

    CPC分类号: H03F1/0294

    摘要: Power reduction in transmitters is very important. One method to realize reduction is to make use of switching power amplifiers (PA) that have a better efficiency. Switching PA concepts are only possible in combination with suitable modulation methods like pulse width modulation (PWM) and out-phasing concepts. However, PWM and out-phasing concepts rely on accurate phase control and duty cycle of the signals. Digitally generation of signals of variable duty cycles and phase is proposed without sacrificing their accuracy. Accordingly, a out-phasing power amplifier arrangement is disclosed, where the generation of the out-phasing angle (θ) and duty cycles (d1 and d2) are controlled by a set of n-bit digital input words (D1, D2, D3, D4). The baseband phase information (φ(t)) is phase modulated back to radio frequency and used as the clock signal of digital circuitry for phase and duty cycle generation after being frequency multiplied by 2n-1. The resolution of the out-phasing angle and of the duty cycle is 2π/2n and 2π/2n-1 equivalently. The resolution of the phase information φ is dependent on the PM realization.

    摘要翻译: 发射机的功率降低非常重要。 实现减少的一种方法是利用具有更好效率的开关功率放大器(PA)。 开关PA概念只能与诸如脉冲宽度调制(PWM)和分相概念的合适的调制方法相结合。 然而,PWM和输出相位概念依赖于信号的精确相位控制和占空比。 提出了可变占空比和相位的信号的数字生成,而不牺牲其精度。 因此,公开了一种分相功率放大器装置,其中产生相位角(θ)和占空比(d1和d2)由一组n位数字输入字(D1,D2,D3)控制 ,D4)。 基带相位信息(phi(t))被相位调制回射频,并且用作数字电路的时钟信号,用于在频率乘以2n-1之后产生相位和占空比。 相位角和占空比的分辨率等于2pi / 2n和2pi / 2n-1。 相位信息phi的分辨率取决于PM实现。

    Power amplifier protection
    6.
    发明授权
    Power amplifier protection 有权
    功率放大器保护

    公开(公告)号:US08373507B2

    公开(公告)日:2013-02-12

    申请号:US13142029

    申请日:2009-12-11

    IPC分类号: H02H7/20

    摘要: A power amplifier, for example a class-E switching power amplifier, and corresponding method, comprising: a plurality of power transistors (16), for example twelve power transistors, providing a partitioned power transistor; and a voltage sensing module (22), comprising for example voltage dividers and inverters, digitally sensing the drain voltage (2) of the partitioned power transistor to control the number of power transistors of the plurality of power transistors (16) that are switched on or off thereby controlling the drain voltage (2) which is varying for example due to antenna mismatch. The power amplifier may further comprise a memory (24) coupled to the voltage sensing module (22) for storing a history of the drain voltage (2), e.g. a history of antenna mismatch.

    摘要翻译: 功率放大器,例如E类开关功率放大器,以及相应的方法,包括:多个功率晶体管(16),例如十二个功率晶体管,提供分配的功率晶体管; 以及电压感测模块(22),其包括例如分压器和反相器,数字地感测分隔的功率晶体管的漏极电压(2)以控制接通的多个功率晶体管(16)的功率晶体管的数量 或关断,从而控制例如由于天线失配而变化的漏极电压(2)。 功率放大器还可以包括耦合到电压感测模块(22)的存储器(24),用于存储漏极电压(2)的历史,例如, 天线不匹配的历史。

    POWER AMPLIFIER PROTECTION
    7.
    发明申请
    POWER AMPLIFIER PROTECTION 有权
    功率放大器保护

    公开(公告)号:US20110254630A1

    公开(公告)日:2011-10-20

    申请号:US13142029

    申请日:2009-12-11

    IPC分类号: H03F3/16

    摘要: A power amplifier, for example a class-E switching power amplifier, and corresponding method, comprising: a plurality of power transistors (16), for example twelve power transistors, providing a partitioned power transistor; and a voltage sensing module (22), comprising for example voltage dividers and inverters, digitally sensing the drain voltage (2) of the partitioned power transistor to control the number of power transistors of the plurality of power transistors (16) that are switched on or off thereby controlling the drain voltage (2) which is varying for example due to antenna mismatch. The power amplifier may further comprise a memory (24) coupled to the voltage sensing module (22) for storing a history of the drain voltage (2), e.g. a history of antenna mismatch.

    摘要翻译: 功率放大器,例如E类开关功率放大器,以及相应的方法,包括:多个功率晶体管(16),例如十二个功率晶体管,提供分配的功率晶体管; 以及电压感测模块(22),其包括例如分压器和反相器,数字地感测分隔的功率晶体管的漏极电压(2)以控制接通的多个功率晶体管(16)的功率晶体管的数量 或关断,从而控制例如由于天线失配而变化的漏极电压(2)。 功率放大器还可以包括耦合到电压感测模块(22)的存储器(24),用于存储漏极电压(2)的历史,例如, 天线不匹配的历史。

    VARIABLE DUTY CYCLE GENERATION FOR OUT-PHASING AND PWM POWER AMPLIFIERS
    8.
    发明申请
    VARIABLE DUTY CYCLE GENERATION FOR OUT-PHASING AND PWM POWER AMPLIFIERS 失效
    用于外置PWM和PWM功率放大器的可变负载周期生成

    公开(公告)号:US20110216818A1

    公开(公告)日:2011-09-08

    申请号:US13128197

    申请日:2009-11-06

    IPC分类号: H03K7/08 H03F3/68

    CPC分类号: H03F1/0294

    摘要: Power reduction in transmitters is very important. One method to realize reduction is to make use of switching power amplifiers (PA) that have a better efficiency. Switching PA concepts are only possible in combination with suitable modulation methods like pulse width modulation (PWM) and out-phasing concepts. However, PWM and out-phasing concepts rely on accurate phase control and duty cycle of the signals. Digitally generation of signals of variable duty cycles and phase is proposed without sacrificing their accuracy. Accordingly, a out-phasing power amplifier arrangement is disclosed, where the generation of the out-phasing angle (θ) and duty cycles (d1 and d2) are controlled by a set of n-bit digital input words (D1, D2, D3, D4). The baseband phase information (φ(t)) is phase modulated back to radio frequency and used as the clock signal of digital circuitry for phase and duty cycle generation after being frequency multiplied by 2n−1. The resolution of the out-phasing angle and of the duty cycle is 2π/2n and 2π/2n−1 equivalently. The resolution of the phase information φ is dependent on the PM realization.

    摘要翻译: 发射机的功率降低非常重要。 实现减少的一种方法是利用具有更好效率的开关功率放大器(PA)。 开关PA概念只能与诸如脉冲宽度调制(PWM)和分相概念的合适的调制方法相结合。 然而,PWM和输出相位概念依赖于信号的精确相位控制和占空比。 提出了可变占空比和相位的信号的数字生成,而不牺牲其精度。 因此,公开了一种分相功率放大器装置,其中产生相位角(& t)和占空比(d1和d2)由一组n位数字输入字(D1,D2, D3,D4)。 基带相位信息(&phgr;(t))被相位调制回射频,并且用作数字电路的时钟信号,用于在频率乘以2n-1之后产生相位和占空比。 相位角和占空比的分辨率等于2&pgr; / 2n和2&pgr / 2n-1。 相位信息的解析 取决于PM的实现。

    SYSTEM AND METHOD FOR TRANSMITTING A BASEBAND REAL SIGNAL WITH A NON-CONSTANT ENVELOPE USING A POLAR TRANSMITTER
    9.
    发明申请
    SYSTEM AND METHOD FOR TRANSMITTING A BASEBAND REAL SIGNAL WITH A NON-CONSTANT ENVELOPE USING A POLAR TRANSMITTER 有权
    使用极性发射器发射带有非恒定环境的基带实信号的系统和方法

    公开(公告)号:US20110300816A1

    公开(公告)日:2011-12-08

    申请号:US12792681

    申请日:2010-06-02

    IPC分类号: H04B1/02

    摘要: A system and method for transmitting a baseband real signal with a non-constant envelope using a polar transmitter involves decomposing a baseband real signal into a non-constant envelope signal of the baseband real signal and a sign signal of the baseband real signal, where the sign signal restores zero crossing regions of the non-constant envelope signal, modulating a carrier signal with the sign signal of the baseband real signal to generate a modulated signal, converting the non-constant envelope signal of the baseband real signal into a voltage signal using a voltage controlled supply regulator, amplifying the modulated signal into an amplified signal based on the voltage signal, and transmitting the amplified signal to an external wireless device.

    摘要翻译: 使用极性发射器发送具有非恒定包络的基带实信号的系统和方法包括将基带实信号分解为基带实信号的非常数包络信号和基带实信号的符号信号,其中 符号信号恢复非恒定包络信号的零交叉区域,用基带实信号的符号信号调制载波信号以产生调制信号,将基带实信号的非恒定包络信号转换成电压信号,使用 电压控制电源调节器,基于电压信号将调制信号放大为放大信号,并将放大的信号发送到外部无线设备。

    ELECTRONIC CIRCUIT WITH CASCODE AMPLIFIER
    10.
    发明申请
    ELECTRONIC CIRCUIT WITH CASCODE AMPLIFIER 有权
    带CASCODE放大器的电子电路

    公开(公告)号:US20110012682A1

    公开(公告)日:2011-01-20

    申请号:US12734538

    申请日:2008-11-10

    IPC分类号: H03F3/04 H03F1/22

    摘要: An electronic circuit has an amplifier with an amplifying transistor (260) and a cascode transistor (262). A capacitive voltage divider (268) applies a fraction of an RF signal swing from the drain of the cascode transistor (262) to the gate of the cascode transistor (262), the fraction being determined by a ratio between capacitance values. In addition a bias voltage supply circuit (29, 290, 266) is provided. The bias voltage supply circuit is configured to define a relation between an average gate voltage of the cascode transistor (262) and an average drain supply voltage at the drain of the cascode transistor (262). This relation increases the average gate voltage with increasing average drain voltage, and the relation provides a non zero average gate voltage when extrapolated to zero average drain supply voltage.

    摘要翻译: 电子电路具有放大器,具有放大晶体管(260)和共源共栅晶体管(262)。 电容分压器(268)将来自共源共栅晶体管(262)的漏极的RF信号摆动的一部分施加到共源共栅晶体管(262)的栅极,该分数由电容值之间的比率确定。 此外,还提供了偏压供给电路(29,290,266)。 偏置电压供给电路被配置为限定共源共栅晶体管(262)的平均栅极电压与共源共栅晶体管(262)的漏极处的平均漏极电源电压之间的关系。 这种关系通过增加平均漏极电压来增加平均栅极电压,并且当外推到零平均漏极电源电压时,该关系提供非零平均栅极电压。