LOAD CURRENT SENSOR FOR ENVELOPE TRACKING MODULATOR
    1.
    发明申请
    LOAD CURRENT SENSOR FOR ENVELOPE TRACKING MODULATOR 审中-公开
    负载电流传感器用于包装跟踪调节器

    公开(公告)号:WO2015124118A3

    公开(公告)日:2015-10-15

    申请号:PCT/CN2015073245

    申请日:2015-02-24

    Abstract: An apparatus (1000) and method for sensing load current of an envelope tracking (ET) modulator (1150) enables load impedance of a power amplifier (130) to be measured. Impairments associated with the load impedance characteristic can be suppressed by calibration and pre-distortion instead of by feedback. The ET modulator (1150) provides a switching regulator that can be reconfigured as a linear regulator for the purpose of sensing the load current. This allows the ET modulator (1150) to be operated open-loop, thereby eliminating the power consumption overhead resulting from utilization of a loop filter and error amplifier and achieving a higher overall efficiency.

    Abstract translation: 用于感测包络跟踪(ET)调制器(1150)的负载电流的装置(1000)和方法使得能够测量功率放大器(130)的负载阻抗。 与负载阻抗特性相关的损伤可以通过校准和预失真而不是反馈来抑制。 ET调制器(1150)提供了一个开关稳压器,可以将其重新配置为线性稳压器,以便感测负载电流。 这允许ET调制器(1150)开环操作,从而消除了由于使用环路滤波器和误差放大器而导致的功率消耗开销并实现更高的总体效率。

    ADAPTIVE AVERAGE POWER TRACKING
    3.
    发明申请
    ADAPTIVE AVERAGE POWER TRACKING 审中-公开
    自适应平均功率跟踪

    公开(公告)号:WO2012112947A1

    公开(公告)日:2012-08-23

    申请号:PCT/US2012/025732

    申请日:2012-02-17

    Abstract: Exemplary embodiments of the invention include a request received to change a TX output power setting or a frequency channel setting. In response, the requested TX output power setting is used to generate a TX output signal in the proper frequency channel. Handset circuitry makes OOB power measurements, the results of which are used to determine a VCC2 setting. The VCC2 setting is a setting that results in an MPS requirement just being met. The VCC2 setting is stored in association with the TX output power and frequency channel setting. The determined VCC2 setting is also used to set the VCC2 supply voltage for the power amplifier. Once set, VCC2 remains fixed until the next request. Each individual handset uses this Adaptive Average Power Tracking (AAPT) method, thereby reducing its VCC2 voltage during operation and conserving power. Because each handset uses AAPT, factory calibration to account for unit-to-unit variations in transmitter circuitry performance is avoided.

    Abstract translation: 本发明的示例性实施例包括接收以改变TX输出功率设置或频率信道设置的请求。 作为响应,所请求的TX输出功率设置用于在适当的频道中产生TX输出信号。 手机电路进行OOB功率测量,其结果用于确定VCC2设置。 VCC2设置是一个设置,导致满足MPS要求。 VCC2设置与TX输出功率和频率通道设置相关联存储。 确定的VCC2设置也用于设置功率放大器的VCC2电源电压。 一旦设置,VCC2保持固定,直到下一个请求。 每个单独的手机使用这种自适应平均功率跟踪(AAPT)方法,从而在运行期间降低其VCC2电压并节省功率。 因为每个手机使用AAPT,所以避免了发射机电路性能的单位到单位变化的出厂校准。

    POWER SUPPLY ARRANGEMENT FOR LINE TERMINATION UNITS
    5.
    发明申请
    POWER SUPPLY ARRANGEMENT FOR LINE TERMINATION UNITS 审中-公开
    线路终端单元的电源装置

    公开(公告)号:WO2011039063A1

    公开(公告)日:2011-04-07

    申请号:PCT/EP2010/063745

    申请日:2010-09-17

    Abstract: The present invention relates to a line termination unit (1') comprising: - a line driver (10) for driving a transmission line, with a first supply voltage input terminal (11) and a second supply voltage input terminal (12); - a power supply means (20), with an analog supply voltage output terminal (22) for feeding an analog part of the line termination unit, and at least one digital supply voltage output terminal (23a, 23b, 23c) for feeding a digital part of the line termination unit, and - a ground voltage reference (30). In accordance with a first aspect of the invention, the analog supply voltage output terminal is coupled to the first supply voltage input terminal, and the line termination unit further comprises a selector (40) for selectively coupling one of the at least one digital supply voltage output terminal or the ground voltage reference to the second supply voltage input terminal.

    Abstract translation: 线路终端单元(1')本发明涉及一种线路终端单元(1'),包括: - 用于驱动传输线的线路驱动器(10),具有第一电源电压输入端子(11)和第二电源电压输入端子(12); - 电源装置(20),具有用于馈送线路终端单元的模拟部分的模拟电源电压输出端子(22)和用于馈送数字信号的至少一个数字电源电压输出端子(23a,23b,23c) 线路终端单元的一部分,以及 - 接地电压基准(30)。 根据本发明的第一方面,模拟电源电压输出端耦合到第一电源电压输入端,并且线路终端单元还包括选择器(40),用于选择性地耦合所述至少一个数字电源电压 输出端子或接地电压参考给第二电源电压输入端子。

    HIGH BANDWIDTH POWER SUPPLY SYSTEM WITH HIGH EFFICIENCY AND LOW DISTORTION
    6.
    发明申请
    HIGH BANDWIDTH POWER SUPPLY SYSTEM WITH HIGH EFFICIENCY AND LOW DISTORTION 审中-公开
    具有高效率和低失真的高带宽电源系统

    公开(公告)号:WO2011011135A1

    公开(公告)日:2011-01-27

    申请号:PCT/US2010/039232

    申请日:2010-06-18

    Abstract: 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.

    Abstract translation: 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。

    POWER AMPLIFIER WITH CLOSE-LOOP ADAPTIVE VOLTAGE SUPPLY
    7.
    发明申请
    POWER AMPLIFIER WITH CLOSE-LOOP ADAPTIVE VOLTAGE SUPPLY 审中-公开
    具有闭环自适应电源的功率放大器

    公开(公告)号:WO2007092148A2

    公开(公告)日:2007-08-16

    申请号:PCT/US2007001661

    申请日:2007-01-22

    CPC classification number: H03F1/0227 H03F2200/465 H03F2200/504 H03F2200/507

    Abstract: A two-(or multi-) stage power amplifier receives a variable RF input signal, and outputs an optimized RF output signal from, for example, a mobile handset. The output power level from the handset is predetermined, as known in the art, by the re- ceived control signal from a base station. The first power amplifier stage amplifies the variable RF input signal and outputs an RF signal, Vin, to a power detector circuit and an RF signal to the second or next amplifier stage. The power detect circuit amplifies the Vin signal and rectifies that signal with a linearly biased diode and provides a detect signal to a DC to DC converter. The converter responds by providing an optimum voltage bias, which is linearly related to the DC voltage detect signal from the power detector, to the output stage, and, if desired, to the first and/or other stages of the power amplifier that optimizes the output power level while meeting the required linearity specification. The battery current consumption is optimized through this automatic, dynamically control of the supply voltage for the power amplifier at each output power level through the DC to DC converter.

    Abstract translation: 两级(或多级)功率放大器接收可变RF输入信号,并且从例如移动手持机输出经优化的RF输出信号。 如本领域所知,来自手机的输出功率电平是通过从基站接收到的控制信号而预先确定的。 第一功率放大器级放大可变RF输入信号,并将RF信号Vin输出到功率检测器电路,并将RF信号输出到第二或下一个放大器级。 功率检测电路放大Vin信号,并用线性偏置二极管对该信号进行整流,并向DC-DC转换器提供检测信号。 转换器通过提供与来自功率检测器的DC电压检测信号线性相关的最佳电压偏置来响应输出级,并且如果需要,向功率放大器的第一和/或其它级优化 输出功率水平,同时满足所需的线性规格。 通过这种自动动态控制功率放大器在每个输出功率电平下通过DC到DC转换器的电源电压来优化电池电流消耗。

    INTEGRATED START-UP BIAS BOOST FOR DYNAMIC ERROR VECTOR MAGNITUDE ENHANCEMENT
    8.
    发明申请
    INTEGRATED START-UP BIAS BOOST FOR DYNAMIC ERROR VECTOR MAGNITUDE ENHANCEMENT 审中-公开
    用于动态错误矢量增强的集成启动偏移

    公开(公告)号:WO2013173771A1

    公开(公告)日:2013-11-21

    申请号:PCT/US2013/041671

    申请日:2013-05-17

    Abstract: Devices and methods for correcting for start-up transients in integrated power amplifiers are disclosed. A delay element (116) is arranged to produce a delay waveform signal that is responsive to an input voltage signal. A transconductance element (118) has an input that receives the delay waveform signal and is arranged to provide an output boost current (102) that is based on the delay waveform signal and a gain of the transconductance element. A reference element (104) provides an output bias current (108) that is responsive to a static reference current (106) and the boost current (102). A bias element (110) has an input that receives the bias current (108) and is arranged to provide a bias control output (112). A power amplifier (114) is responsive to the bias control output (112) and is arranged to provide an amplified power output (RF OUT ).

    Abstract translation: 公开了用于校正集成功率放大器中的起动瞬变的装置和方法。 延迟元件(116)被布置成产生响应于输入电压信号的延迟波形信号。 跨导元件(118)具有接收延迟波形信号的输入端,并且被配置为提供基于延迟波形信号和跨导元件的增益的输出升压电流(102)。 参考元件(104)提供响应于静态参考电流(106)和升压电流(102)的输出偏置电流(108)。 偏置元件(110)具有接收偏置电流(108)并被设置成提供偏置控制输出(112)的输入端。 功率放大器(114)响应于偏置控制输出(112)并被布置成提供放大的功率输出(RFOUT)。

    高周波電力増幅回路用電源装置および高周波電力増幅装置
    9.
    发明申请
    高周波電力増幅回路用電源装置および高周波電力増幅装置 审中-公开
    用于高频电力放大电路的电源装置和高频电力放大装置

    公开(公告)号:WO2013168598A1

    公开(公告)日:2013-11-14

    申请号:PCT/JP2013/062323

    申请日:2013-04-26

    Inventor: 辻仁司

    Abstract:  高周波電力増幅装置(205A)は高周波電力増幅回路用電源装置(105A)、RF信号処理回路(20)および高周波電力増幅回路(100)を備えている。入力電圧の入力部と出力電圧の出力部との間には電荷供給・回生が可能な双方向コンバータ(CONVa~CONVn)が設けられている。コンバータ制御回路(9)はRF入力信号のエンベロープを検出し、出力電圧が包絡線入力信号の振幅変化に追従するように双方向コンバータ(CONVa~CONVn)の共振周波数および振幅を設定するとともに切り替える。遅延時間検知回路(12)は高周波電力増幅回路用電源装置(105A)の遅延時間を把握し、遅延調整回路(22)で調整を行う。

    Abstract translation: 高频电力放大装置(205A)具备高频电力放大电路用电源装置(105A),RF信号处理电路(20)和高频电力放大电路( 100)。 在输入电压的输入部和输出电压的输出部之间,设置能够进行充电供给/再生的双向转换器(CONVa-CONVn)。 A转换器控制电路(9)检测RF输入信号的包络,并设置和切换双向转换器(CONVa-CONVn)的谐振频率和振幅,使得输出电压遵循包络输入信号的幅度变化。 延迟时间检测电路(12)确定高频电力放大电路的电源装置(105A)的延迟时间,并通过使用延迟调整电路(22)进行调整。

    オーディオアンプ及び電源電圧切替え方法
    10.
    发明申请
    オーディオアンプ及び電源電圧切替え方法 审中-公开
    音频放大器和电源电压切换方法

    公开(公告)号:WO2013125348A1

    公开(公告)日:2013-08-29

    申请号:PCT/JP2013/052727

    申请日:2013-02-06

    Inventor: 山田 守人

    Abstract:  オーディオアンプは、増幅回路と、複数の電源電圧を発生する電源回路と、前記複数の電源電圧のうちの1つを、前記増幅回路に供給する電源電圧として選択する電源リレーと、前記電源リレーの切換条件が成立しているかを判定する切換条件判定部と、前記電源リレーの動作時間以上の前記オーディオ信号の無音区間を検出する無音区間検出部と、前記切換条件が成立しており、且つ前記無音区間が検出されたとき、該無音区間中に前記電源電圧を切り換えるために前記電源リレーに指示する切換指示手段と、を備える。

    Abstract translation: 该音频放大器具有:放大电路; 产生多个电源电压的电源电路; 电源继电器,其选择作为提供给所述放大电路的电源电压,所述多个电源电压中的一个电源电压; 开关条件评估单元,其判断是否满足了电源继电器的开关条件; 静音间隔检测单元,其检测长于或等于所述电源继电器的操作时间的音频信号的静音间隔; 以及切换指示装置,当已经满足切换条件和已经检测到无声间隔时,执行用于电源继电器的指令以在静音期间切换电源电压。

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