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1. 发明申请

WO2019117888A1 NOVEL MULTIFEED PREDISTORTER WITH REALTIME ADAPTATION 审中-公开
公开(公告)号：WO2019117888A1
公开(公告)日：2019-06-20
申请号：PCT/US2017/066066
申请日：2017-12-13
申请人： INTEL IP CORPORATION
发明人： KUSHNIR, Igal , ZUR, Sarit , BEN-BASSAT, Assaf , GORDON, Eshel , HORWITZ, Lior , LANGER, Andreas , KRAUT, Gunther
IPC分类号： H03F1/32 , H03F1/02 , H03F3/195 , H03F3/213 , H03F3/24
CPC分类号： H03F1/3247 , H03F1/0227 , H03F1/3258 , H03F3/195 , H03F3/213 , H03F3/245 , H03F2200/102 , H03F2200/228 , H03F2200/321 , H03F2200/451 , H03F2200/462 , H03F2200/468 , H03F2200/471 , H03F2201/3227 , H03F2201/3233
摘要： A multi-feed predistorter circuit associated with a power amplifier (PA) system is disclosed. The multi-feed predistorter circuit comprises one or more processors configured to receive an input signal associated with the PA system. The one or more processors is further configured to receive one or more PA measurement signals comprising one or more measured parameter values, respectively associated with a PA circuit in the PA system and generate a predistorted input signal to compensate for non-linearities associated with the PA circuit, based on the input signal and the one or more PA measurement signals. In some embodiments, the one or more measured parameter values comprises measured parameter values that are different from measured parameter values associated with a PA output signal and a PA input signal of the PA circuit.

2. 发明申请

WO2018132208A1 EFFICIENT WIDEBAND ENVELOPE TRACKING POWER AMPLIFIER 审中-公开
公开(公告)号：WO2018132208A1
公开(公告)日：2018-07-19
申请号：PCT/US2017/066056
申请日：2017-12-13
申请人： QUALCOMM INCORPORATED
发明人： HUR, Joonhoi , DRAXLER, Paul
IPC分类号： G05F1/565 , H03F1/02
CPC分类号： H03F3/193 , G05F1/565 , H03F1/0222 , H03F3/2171 , H03F3/245 , H03F3/3022 , H03F2200/102 , H03F2200/432 , H03F2200/451 , H03F2200/462
摘要： A wideband envelope tracking power amplifier includes a plurality of low dropout voltage regulators (LDOs) including at least a first LDO and a second LDO. The wideband envelope tracking power amplifier also includes a single-input-multi- output (SIMO) voltage supply to output a plurality of voltage signals at different voltage levels, the voltage levels including a highest voltage level and one or more voltage levels lower than the highest voltage level. The SIMO voltage supply connects a first of the plurality of voltage signals at a first voltage level to the first LDO to form at least a portion of an envelope tracking voltage level signal, and connects a second of the plurality of voltage signals at a second voltage level less than or equal to the first voltage level to the second LDO to form at least another portion of the envelope tracking voltage level signal.

3. 发明申请

WO2017102572A1 CAPACITIVE LOADING MODE MEASUREMENT CIRCUIT WITH COMPENSATION OF MEASUREMENT ERRORS DUE TO PARASITIC SENSOR IMPEDANCES 审中-公开
标题翻译：电容式负载模式测量电路，补偿由于寄生传感器阻抗引起的测量错误
公开(公告)号：WO2017102572A1
公开(公告)日：2017-06-22
申请号：PCT/EP2016/080372
申请日：2016-12-09
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent
IPC分类号： G01R27/26 , G01D5/24 , G01R27/14 , H03F3/45 , H03F3/38
CPC分类号： H03F3/45475 , B60R21/01532 , G01R27/14 , H03F3/38 , H03F2200/129 , H03F2200/135 , H03F2200/144 , H03F2200/261 , H03F2200/264 , H03F2200/321 , H03F2200/336 , H03F2200/393 , H03F2200/462 , H03F2200/471 , H03F2203/45114 , H03F2203/45116 , H03F2203/45138 , H03F2203/45151 , H03F2203/45174 , H03F2203/45224 , H03F2203/45276 , H03F2203/45512 , H03F2203/45521 , H03F2203/45528 , H03F2203/45594
摘要： An impedance measurement circuit (22) for determining a sense current of a guard-sense capacitive sensor (20) operated in loading mode, includes a periodic signal voltage source (38) for providing a periodic measurement voltage, a sense current measurement circuit (42), a differential amplifier (44) that is configured to sense a complex voltage difference between the sense electrode and the guard electrode, demodulation means for obtaining, with reference to the periodic measurement voltage, an in-phase component and a quadrature component of the sensed complex voltage difference, control loops (50, 56) for receiving the in-phase component and the quadrature component, respectively, wherein an output signal of the first control loop (50) and an output signal of the second control loop (56) are usable to form a complex voltage that serves as a complex reference voltage for the sense current measurement circuit (42).
摘要翻译：用于确定在加载模式下操作的保护 - 感测电容性传感器（20）的感测电流的阻抗测量电路（22）包括用于提供周期性测量电压（38）的周期性信号电压源（38），感测电流测量电路（42），被配置为感测所述感测电极与所述保护电极之间的复电压差的差分放大器（44），解调装置，用于参考所述周期性测量电压，（50,56），用于分别接收同相分量和正交分量，其中第一控制回路（50）的输出信号和输出信号第二控制回路（56）的输出电压可用于形成用作感测电流测量电路（42）的复合基准电压的复合电压。

4. 发明申请

WO2017044657A1 AUTOMATIC BIAS CONTROLLER FOR A PULSED POWER AMPLIFIER 审中-公开
标题翻译：用于脉冲功率放大器的自动偏置控制器
公开(公告)号：WO2017044657A1
公开(公告)日：2017-03-16
申请号：PCT/US2016/050817
申请日：2016-09-08
申请人： FLIR SYSTEMS, INC.
发明人： JALES, Richard
IPC分类号： H03F1/02 , H03F1/30 , H03F3/189
CPC分类号： H03F1/0211 , H03F1/0261 , H03F1/30 , H03F1/301 , H03F3/189 , H03F3/19 , H03F3/21 , H03F2200/15 , H03F2200/18 , H03F2200/27 , H03F2200/351 , H03F2200/451 , H03F2200/462 , H03F2200/78
摘要： Systems and methods for automatically controlling the bias in a pulsed power amplifier include components for measuring the current in an amplifier, comparing the measured value with the desired value, modifying the bias, and controlling the bias applied to the power amplifier. A measurement circuit converts the measured current to a voltage, and a comparator compares a measured voltage with a reference voltage to continuously indicate whether the amplifier current is less than a desired quiescent value. A circuit controls the level of the gate-bias (Vg) during a pulse, such as with a pulse width modulator. The measurement of the amplifier current is registered after the bias is enabled, but before the signal pulse. Drive control logic implements a control algorithm for adjusting the gate value in between pulses and in time to be used for the next pulse.
摘要翻译：用于自动控制脉冲功率放大器中的偏置的系统和方法包括用于测量放大器中的电流的组件，将测量值与期望值进行比较，修改偏置以及控制施加到功率放大器的偏置。测量电路将测量的电流转换为电压，并且比较器将测量的电压与参考电压进行比较，以连续地指示放大器电流是否小于期望的静态值。电路控制脉冲期间的栅极偏置电平（Vg），例如用脉冲宽度调制器。在偏置使能之后，但在信号脉冲之前，放大器电流的测量被记录。驱动控制逻辑实现一种控制算法，用于调整脉冲之间的时钟和时间上的栅极值，以用于下一个脉冲。

5. 发明申请

WO2015188363A1 METHOD AND APPARATUS FOR ENVELOPE SHAPING IN ENVELOPE TRACKING POWER AMPLIFICATION 审中-公开
标题翻译：在包装功率放大中的包装形状的方法和装置
公开(公告)号：WO2015188363A1
公开(公告)日：2015-12-17
申请号：PCT/CN2014/079807
申请日：2014-06-13
申请人： NOKIA TECHNOLOGIES OY , NAVTEQ (SHANGHAI) TRADING CO., LTD.
发明人： WANG, Zhancang
IPC分类号： H03F1/30
CPC分类号： H03F1/30 , H03F1/0222 , H03F3/195 , H03F3/245 , H03F2200/102 , H03F2200/18 , H03F2200/462
摘要： A method, corresponding apparatuses, and a non-transitory computer readable medium for envelope shaping in envelope tracking power amplification are provided. The method comprises detecting, based on a shaping threshold, one or more troughs in an envelope signal representing an envelope of a signal to be amplified by an envelope tracking power amplifier connected with an envelope tracking supply modulator. The method also comprises clipping the one or more detected troughs in the envelope signal. The method further comprises shaping the envelope signal for the envelope tracking supply modulator by processing a delayed version of the envelope signal with the one or more clipped troughs. With the claimed inventions, the efficiency and linearity of an envelope tracking power amplifier could be improved.
摘要翻译：提供了一种用于包络跟踪功率放大中的包络整形的方法，相应装置和非暂时计算机可读介质。该方法包括基于整形阈值检测表示由与包络跟踪供应调制器连接的包络跟踪功率放大器放大的信号的包络的包络信号中的一个或多个谷。该方法还包括限制包络信号中的一个或多个检测到的谷。该方法还包括通过用一个或多个限幅槽处理包络信号的延迟版本来对包络跟踪供应调制器的包络信号进行成形。利用所要求保护的发明，可以提高包络跟踪功率放大器的效率和线性度。

6. 发明申请

WO2014123744A1 POWER TRACKER FOR MULTIPLE TRANSMIT SIGNALS SENT SIMULTANEOUSLY 审中-公开
标题翻译：用于多个发送信号的电力跟踪器同时发送
公开(公告)号：WO2014123744A1
公开(公告)日：2014-08-14
申请号：PCT/US2014/013805
申请日：2014-01-30
申请人： QUALCOMM INCORPORATED
发明人： DOROSENCO, Alexander
IPC分类号： H04W52/52 , H03F1/02
CPC分类号： H04B1/04 , H03F1/0227 , H03F1/3205 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F2200/105 , H03F2200/294 , H03F2200/336 , H03F2200/451 , H03F2200/462 , H04W52/52
摘要： Techniques for generating a power tracking supply voltage for a circuit (e.g., a power amplifier) are disclosed. The circuit may process multiple transmit signals being sent simultaneously on multiple carriers at different frequencies. In one exemplary design, an apparatus includes a power tracker and a power supply generator. The power tracker determines a power tracking signal based on inphase (I) and quadrature (Q) components of a plurality of transmit signals being sent simultaneously. The power supply generator generates a power supply voltage based on the power tracking signal. The apparatus may further include a power amplifier (PA) that amplifies a modulated radio frequency (RF) signal based on the power supply voltage and provides an output RF signal.
摘要翻译：公开了用于产生用于电路（例如功率放大器）的功率跟踪电源电压的技术。电路可以处理在不同频率的多个载波上同时发送的多个发射信号。在一个示例性设计中，装置包括电力跟踪器和电源发生器。功率跟踪器基于同时发送的多个发送信号的同相（I）和正交（Q）分量来确定功率跟踪信号。电源发生器基于功率跟踪信号产生电源电压。该装置还可以包括功率放大器（PA），功率放大器（PA）基于电源电压放大调制射频（RF）信号并提供输出RF信号。

7. 发明申请

WO2014028667A1 SYSTEMS, CIRCUITS AND METHODS RELATED TO CONTROLLERS FOR RADIO-FREQUENCY POWER AMPLIFIERS 审中-公开
标题翻译：无线电频率放大器控制器的系统，电路和方法
公开(公告)号：WO2014028667A1
公开(公告)日：2014-02-20
申请号：PCT/US2013/055014
申请日：2013-08-14
申请人： SKYWORKS SOLUTIONS, INC.
发明人： GEBEYEHU, Netsanet , SHI, Ying , KASNAVI, Reza , OZ, Onder , FENG, Jinghang
IPC分类号： H03F1/30
CPC分类号： H03F1/0233 , H03F3/195 , H03F3/213 , H03F2200/423 , H03F2200/451 , H03F2200/462 , H03F2200/528 , H03G3/30 , H03G3/3042
摘要： Disclosed are systems, circuits and methods related to controlling of a radio-frequency (RF) power amplifier (PA). In some embodiments, a PA control circuit can include a first circuit configured to generate a replica base current from a base current provided to the PA, with the replica base current being representative of a collector current of the PA scaled by a beta parameter. The PA control circuit can further include a second circuit configured to generate a beta-tracking reference current from a temperature-compensated voltage and a base resistance associated with the PA. The PA control circuit can further include a current steering circuit configured to receive the replica base current and the beta-tracking reference current and generate a proportional current to a clamping node of a base driver. In some embodiments, the replica base current can be obtained by a current-mode comparison of a finger-sensed current with a ramp current.
摘要翻译：公开了与控制射频（RF）功率放大器（PA）相关的系统，电路和方法。在一些实施例中，PA控制电路可以包括被配置为从提供给PA的基极电流产生复制基极电流的第一电路，其中复制基极电流代表由β参数缩放的PA的集电极电流。 PA控制电路还可以包括被配置为从温度补偿电压和与PA相关联的基极电阻产生β跟踪参考电流的第二电路。 PA控制电路还可以包括配置成接收复制基极电流和β跟踪参考电流的电流转向电路，并且产生一个比例电流到基本驱动器的钳位节点。在一些实施例中，可以通过手指感测电流与斜坡电流的电流模式比较来获得复制基极电流。

8. 发明申请

WO2014006890A1 デジタル振幅変調装置及びデジタル振幅変調装置の制御方法审中-公开
标题翻译：数字振幅调制装置及数字振幅调制装置的控制方法
公开(公告)号：WO2014006890A1
公开(公告)日：2014-01-09
申请号：PCT/JP2013/004124
申请日：2013-07-03
申请人：株式会社東芝
发明人：舟橋　祐紀 , 片山　誠記
IPC分类号： H04B1/04 , H03C1/00
CPC分类号： H02H9/04 , H03F1/0277 , H03F1/526 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/462 , H03F2200/471 , H03F2200/541 , H04B1/04 , H04B1/0483 , H04B2001/0408 , H04L27/04
摘要：　デジタル振幅変調装置は、測定部と、ファーストサージプロテクション部と、スローベクトルプロテクション部と、制御部とを備える。測定部は、ＲＦ信号から電圧および電流を検出する。ファーストサージプロテクション部は、測定部の検出信号からＳＷＲを求め、ＳＷＲが閾値を超える場合、ＳＷＲに基づいて、オン状態できる電力増幅器の第１の上限台数を求め、第１の制御信号を発生する。スローベクトルプロテクション部は、測定部の出力検出信号から反射係数を求め、反射係数から求められたＳＷＲが閾値以下の場合、反射係数に基づいてオン状態にできる電力増幅器の第２の上限台数を求め、第２の制御信号を発生する。制御部は、第１の制御信号の受信時に、第１の上限台数内で電力増幅器をオン／オフに制御し、第２の制御信号の受信時に、第２の上限台数内で電力増幅器をオン／オフに制御する。
摘要翻译：数字幅度调制装置配备有测量单元，快速浪涌保护单元，慢向量保护单元和控制单元。测量单元检测来自RF信号的电压和电流。快速浪涌保护单元根据由测量单元检测的信号确定SWR，并且如果SWR大于阈值，则基于SWR确定可处于导通状态的放大器数量的第一上限，并产生第一控制信号。慢矢量保护单元根据从测量单元输出的检测信号来确定反射系数，并且如果从反射系数确定的SWR小于或等于阈值，则确定可以是的放大器数量的第二上限在反射系数的基础上处于导通状态，并产生第二控制信号。当接收到第一控制信号时，控制单元对于放大器数量的第一上限达到多个放大器的开/关控制，并且对于多达第二上限的放大器执行开/关控制，接收第二控制信号时的放大器数量。

9. 发明申请

WO2014004241A2 RF ENERGY RECOVERY SYSTEM AND RELATED TECHNIQUES 审中-公开
标题翻译：射频能量恢复系统及相关技术
公开(公告)号：WO2014004241A2
公开(公告)日：2014-01-03
申请号：PCT/US2013/046747
申请日：2013-06-20
申请人： ETA DEVICES, INC.
发明人： PERREAULT, David, J. , DAWSON, Joel, L.
IPC分类号： H02M7/217
CPC分类号： H02M7/217 , H02M7/06 , H03F1/02 , H03F3/00 , H03F3/195 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/602 , H03F2200/06 , H03F2200/09 , H03F2200/192 , H03F2200/204 , H03F2200/462 , H03H7/38 , Y10T307/25
摘要： An energy recovery system can simulate the behavior and performance of a resistive termination, while recovering at least some of the energy that would otherwise have been dissipated within the termination. In one embodiment, the energy recovery system includes a rectification system having a plurality of tuned rectifier circuits and an RF input network to provide input power distribution to the plurality of tuned rectifier circuits and input impedance shaping to shape the collective input impedance of the plurality of tuned rectifier circuits as seen at the RF input port of the RF input network. A transmission line resistance compression network may be used to facilitate the input impedance shaping.
摘要翻译：能量回收系统可以模拟电阻终端的行为和性能，同时恢复否则在终端内消散的能量的至少一部分。在一个实施例中，能量回收系统包括具有多个调谐整流器电路和RF输入网络的整流系统，以向多个调谐整流器电路提供输入功率分布，并输入阻抗整形以形成多个调谐整流器的总体输入阻抗调谐整流电路，如RF输入网络的RF输入端口所示。可以使用传输线路电阻压缩网络来促进输入阻抗整形。

10. 发明申请

WO2013152290A1 HEADPHONE AMPLIFIER 审中-公开
标题翻译：耳机放大器
公开(公告)号：WO2013152290A1
公开(公告)日：2013-10-10
申请号：PCT/US2013/035454
申请日：2013-04-05
申请人： MARVELL WORLD TRADE LTD. , ZHOU, Hao , SHUI, Tao , SONG, Yonghua , WANG, Yongxu , ZHANG, Haiqing
发明人： ZHOU, Hao , SHUI, Tao , SONG, Yonghua , WANG, Yongxu , ZHANG, Haiqing
IPC分类号： H03F3/21 , H03F1/08 , H03F1/34 , H03F3/45
CPC分类号： H03G3/20 , H03F1/083 , H03F1/34 , H03F3/21 , H03F3/45475 , H03F2200/03 , H03F2200/153 , H03F2200/408 , H03F2200/462 , H03F2203/45051 , H03F2203/45138 , H03F2203/45166 , H03F2203/45522 , H03F2203/45526 , H03G1/007 , H03G1/0088 , H03G3/3015 , H03G3/3026
摘要： Aspects of the disclosure process an amplifier circuit. The amplifier circuit includes an input stage, an intermediate stage, an output stage and a detecting and controlling circuit. The input stage is configured to receive an electrical signal for amplification. The intermediate stage is configured to amplify with an adjustable gain. The output stage is configured to drive an audio output device in response to the amplified electrical signal. The detecting and controlling circuit is configured to detect a current for driving the audio output device, and adjust the gain of the intermediate stage based on the current to compensate for a pole change of the amplifier circuit due to a change of the current.
摘要翻译：披露过程的方面放大器电路。放大器电路包括输入级，中间级，输出级和检测和控制电路。输入级被配置为接收用于放大的电信号。中间级被配置为以可调增益放大。输出级被配置为响应于放大的电信号来驱动音频输出设备。检测和控制电路被配置为检测用于驱动音频输出装置的电流，并且基于电流来调整中间级的增益，以补偿由于电流的变化引起的放大器电路的极点变化。

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