公开(公告)号：US09219445B2

公开(公告)日：2015-12-22

申请号：US13830070

申请日：2013-03-14

申请人： PEREGRINE SEMICONDUCTOR CORPORATION

发明人： Dan William Nobbe ,  Jeffrey A. Dykstra ,  Chris Olson ,  James S. Cable

IPC分类号： H03F3/04 ,  H03G3/20 ,  H03F1/02 ,  H03F3/193 ,  H03F3/21 ,  H03F1/22 ,  H03F1/32 ,  H03F1/56 ,  H03F3/195 ,  H03F3/24 ,  H03F3/45

CPC分类号： H03F1/0205 ,  H03F1/0216 ,  H03F1/0222 ,  H03F1/0227 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/223 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/56 ,  H03F3/191 ,  H03F3/193 ,  H03F3/195 ,  H03F3/21 ,  H03F3/211 ,  H03F3/24 ,  H03F3/45179 ,  H03F3/45183 ,  H03F3/45188 ,  H03F2200/102 ,  H03F2200/108 ,  H03F2200/129 ,  H03F2200/15 ,  H03F2200/18 ,  H03F2200/213 ,  H03F2200/222 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/408 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2200/546 ,  H03F2200/78 ,  H03F2201/3233 ,  H03F2203/45112 ,  H03F2203/45366 ,  H03F2203/45544 ,  H03F2203/45638 ,  H03F2203/45731

摘要： Optimization methods via various circuital arrangements for amplifier with variable supply power are presented. In one embodiment, a switch can be controlled to include or exclude a feedback network in a feedback path to the amplifier to adjust a response of the amplifier dependent on a region of operation of the amplifier arrangement (e.g. linear region or compression region).

摘要翻译： 提出了通过各种可变电源功率放大器电路布置的优化方法。 在一个实施例中，可以控制开关以包括或排除到放大器的反馈路径中的反馈网络，以根据放大器装置的操作区域（例如，线性区域或压缩区域）来调整放大器的响应。

公开(公告)号：US09190958B2

公开(公告)日：2015-11-17

申请号：US13941127

申请日：2013-07-12

申请人： SNAPTRACK, INC.

发明人： Martin Paul Wilson

IPC分类号： H03F1/00 ,  H03F1/02 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21

CPC分类号： H03F1/0222 ,  H03F1/00 ,  H03F1/02 ,  H03F1/025 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/331 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511

摘要： A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.

摘要翻译： 一种射频放大级，包括：放大器，用于接收待放大的输入信号和电源电压; 以及用于提供所述电源电压的电源电压级，包括：用于提供表示所述输入信号的包络的参考信号的装置; 用于根据参考信号选择多个电源电压电平中的一个的装置; 以及用于产生经调整的所选择的电源电压的装置，包括用于放大参考信号与所选择的电源电压电平或所调整的所选电源电压电平之一之间的差的交流放大器，以及用于将所放大的差与所选择的电源电压相加的加法器 供给电压，从而生成调整后的电源电压。

公开(公告)号：US09148090B2

公开(公告)日：2015-09-29

申请号：US14132047

申请日：2013-12-18

申请人： Murata Manufacturing Co., Ltd.

发明人： Hitoshi Tsuji

IPC分类号： H03G3/20 ,  H03F1/02 ,  H03F3/189 ,  H03F3/24 ,  H03F3/21 ,  H04B1/04 ,  H02M3/158

CPC分类号： H03F1/0222 ,  H02M3/1582 ,  H02M3/1584 ,  H03F1/02 ,  H03F1/025 ,  H03F3/189 ,  H03F3/21 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/507 ,  H03F2200/511 ,  H03F2200/516 ,  H04B1/0475 ,  H04B2001/045

摘要： In a power supply device, bidirectional converters that are each capable of supplying or regenerating an electric charge are provided between an input section for an input voltage and an output section for an output voltage. An amplitude change monitor circuit detects an envelope of an RF input signal. A converter switching circuit controls supply and regeneration of electric charges by the bidirectional converters so that the output voltage follows an amplitude change of the input signal. An output capacitor capacitance estimation unit estimates the capacitance of an output capacitor from its voltage and current. A delay time detection circuit grasps a delay time of a power supply device for a high frequency power amplification circuit and makes an adjustment through a delay adjustment circuit.

摘要翻译： 在电源装置中，在输入电压的输入部和输出电压的输出部之间设置有能够提供或再生电荷的双向转换器。 振幅变化监视电路检测RF输入信号的包络。 A转换器切换电路通过双向转换器控制电荷的供给和再生，使得输出电压跟随输入信号的幅度变化。 输出电容器电容估计单元从其电压和电流估计输出电容器的电容。 延迟时间检测电路掌握高频功率放大电路的电源装置的延迟时间，并通过延迟调整电路进行调整。

公开(公告)号：US20150244325A1

公开(公告)日：2015-08-27

申请号：US14188305

申请日：2014-02-24

申请人： Futurewei Technologies Inc.

发明人： Robert Irvine ,  Hong Jiang

IPC分类号： H03F1/02 ,  H04B1/04 ,  H03F1/32 ,  H04L25/49 ,  H03F3/21 ,  H03F3/19

CPC分类号： H03F1/0216 ,  H03F1/0227 ,  H03F1/025 ,  H03F1/3241 ,  H03F1/34 ,  H03F3/19 ,  H03F3/21 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/351 ,  H03F2200/451 ,  H03F2200/507 ,  H03F2201/3215 ,  H04B1/0475 ,  H04B2001/0408 ,  H04B2001/0433 ,  H04L25/4902

摘要： An apparatus and method for sensing load current of an envelope tracking (ET) modulator enables load impedance of a power amplifier to be measured. Impairments associated with the load impedance characteristic can be suppressed by calibration and predistortion instead of by feedback (as done in the prior art). The ET modulator 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 to be operated open-loop, thereby eliminating the power consumption overhead resulting from utilization of a loop filter and error amplifier (used in the prior art) and achieving a higher overall efficiency.

摘要翻译： 用于感测包络跟踪（ET）调制器的负载电流的装置和方法能够测量功率放大器的负载阻抗。 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通过反馈来抑制（如现有技术中所做的那样）。 ET调制器提供开关稳压器，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调制器被开环操作，从而消除了利用环路滤波器和误差放大器（现有技术中使用）并实现更高的总体效率的功耗开销。

公开(公告)号：US09118278B2

公开(公告)日：2015-08-25

申请号：US14264631

申请日：2014-04-29

申请人： Martin Paul Wilson

发明人： Martin Paul Wilson

IPC分类号： H03F1/00 ,  H03F1/02 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21

CPC分类号： H03F1/0222 ,  H03F1/00 ,  H03F1/02 ,  H03F1/025 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/331 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511

摘要： A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.

公开(公告)号：US09112649B2

公开(公告)日：2015-08-18

申请号：US13649994

申请日：2012-10-11

申请人： QUALCOMM Incorporated

发明人： Jifeng Geng ,  Daniel Fred Filipovic

IPC分类号： H04L27/36 ,  H04L1/00 ,  H03F1/02 ,  H03F3/24 ,  H03F1/32

CPC分类号： H04L1/0033 ,  H03F1/025 ,  H03F1/3247 ,  H03F1/3288 ,  H03F3/24 ,  H03F2200/321 ,  H03F2200/336 ,  H04L27/368

摘要： Aspects disclosed herein relate to predicting one or more signal characteristics to improve efficiency for a PA. A wireless communications device may be include a power amplifier and a processor that is associated with a signal prediction module. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the wireless communications device may be configured to buffer one or more values associated with an input signal. The signal prediction module may be configured to predict a system response to at least a portion of the one or more buffered values, and generate a switcher control signal based on the system response. The signal prediction module may also generate a predicted supply voltage from the values associated with the input signal.

摘要翻译： 本文公开的方面涉及预测一个或多个信号特征以提高PA的效率。 无线通信设备可以包括功率放大器和与信号预测模块相关联的处理器。 在一方面，处理器可以是调制解调器，RF芯片等。在一个示例中，无线通信设备可以被配置为缓冲与输入信号相关联的一个或多个值。 信号预测模块可以被配置为预测对所述一个或多个缓冲值的至少一部分的系统响应，并且基于系统响应来生成切换器控制信号。 信号预测模块还可以根据与输入信号相关联的值产生预测的电源电压。

公开(公告)号：US20150194933A1

公开(公告)日：2015-07-09

申请号：US14636387

申请日：2015-03-03

申请人： Martin Paul Wilson

发明人： Martin Paul Wilson

IPC分类号： H03F1/02 ,  H03F3/19 ,  H03F3/21

CPC分类号： H03F1/0222 ,  H03F1/00 ,  H03F1/02 ,  H03F1/025 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/331 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511

摘要： A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.

公开(公告)号：US20150171768A1

公开(公告)日：2015-06-18

申请号：US14401981

申请日：2013-03-13

申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY

发明人： David J. Perreault

IPC分类号： H02M7/537 ,  H03F1/02 ,  H03F1/32 ,  H03F3/217

CPC分类号： H02M7/537 ,  H03F1/0227 ,  H03F1/025 ,  H03F1/3282 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/245 ,  H03F3/602 ,  H03F3/68 ,  H03F2200/204 ,  H03F2200/345 ,  H03F2200/348 ,  H03F2200/351 ,  H03F2200/511 ,  H03F2201/3209 ,  Y10T307/461

摘要： Circuit topologies and control methods for a dc-to-rf converter circuit are described.

摘要翻译： 描述了DC-to-rf转换器电路的电路拓扑和控制方法。

公开(公告)号：US20150155834A1

公开(公告)日：2015-06-04

申请号：US14581630

申请日：2014-12-23

申请人： Skyworks Solutions, Inc. ,  Nujira Ltd.

发明人： David Steven Ripley ,  Sabah Khesbak ,  Benjamin Bartram ,  Kevin Lee Cobley ,  Robert Astle Henshaw ,  Julian Hildersley ,  Robert John Thompson

IPC分类号： H03F1/30 ,  H03F3/21 ,  H03G3/30

CPC分类号： 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

摘要： Apparatus and methods for envelope tracking calibration are provided. In one embodiment, a power amplifier system includes a power amplifier, an envelope tracker that generates the power amplifier's supply voltage, a power detector, and a calibration module. The envelope tracker includes an envelope shaping table generated at a desired gain compression and a scaling module that scales an amplitude of an envelope signal. The power detector measures the power amplifier's output power, and the calibration module provides calibration data to the scaling module to change the scaling of the envelope signal's amplitude. The calibration module sets the calibration data to a first value corresponding to a supply voltage level associated with substantially no gain compression, and reduces the supply voltage level by changing the calibration data until the power detector indicates that the gain compression of the power amplifier is about equal to the desired gain compression.

摘要翻译： 提供用于包络跟踪校准的装置和方法。 在一个实施例中，功率放大器系统包括功率放大器，产生功率放大器电源电压的封装跟踪器，功率检测器和校准模块。 包络跟踪器包括以期望的增益压缩生成的包络整形表和缩放包络信号的幅度的缩放模块。 功率检测器测量功率放大器的输出功率，校准模块向定标模块提供校准数据，以改变包络信号幅度的缩放。 校准模块将校准数据设置为对应于与基本上没有增益压缩相关联的电源电压电平的第一值，并且通过改变校准数据来降低电源电压，直到功率检测器指示功率放大器的增益压缩为约 等于所需的增益压缩。

公开(公告)号：US08981848B2

公开(公告)日：2015-03-17

申请号：US14022940

申请日：2013-09-10

申请人： RF Micro Devices, Inc.

发明人： Michael R. Kay ,  Philippe Gorisse ,  Nadim Khlat

IPC分类号： H03G3/10 ,  H03H11/26

CPC分类号： H03K5/14 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

摘要： Programmable delay circuitry, which includes an input buffer circuit and variable delay circuitry, is disclosed. The variable delay circuitry includes an input stage, a correction start voltage circuit, and a variable delay capacitor. The input buffer circuit is coupled to the input stage, the correction start voltage circuit is coupled to the input stage, and the variable delay capacitor is coupled to the input stage. The programmable delay circuitry is configured to provide a fixed time delay and a variable time delay.

摘要翻译： 公开了包括输入缓冲电路和可变延迟电路的可编程延迟电路。 可变延迟电路包括输入级，校正开始电压电路和可变延迟电容器。 输入缓冲电路耦合到输入级，校正开始电压电路耦合到输入级，可变延迟电容耦合到输入级。 可编程延迟电路被配置为提供固定的时间延迟和可变的时间延迟。