公开(公告)号：US08648657B1

公开(公告)日：2014-02-11

申请号：US13584104

申请日：2012-08-13

申请人： Dmitriy Rozenblit

发明人： Dmitriy Rozenblit

IPC分类号： H03G9/00

CPC分类号： H03F1/0222 ,  H03F1/0238 ,  H03F1/025 ,  H03F3/245 ,  H03F2200/336 ,  H03F2200/405 ,  H03F2200/408 ,  H03F2200/507 ,  H03F2200/511 ,  H03F2200/516

摘要： The present application discloses various implementations of a mobile device including a power amplifier (PA) having a driving stage coupled to an output stage. The driving stage is configured to be selectably powered by one of a first voltage supply and a second voltage supply. The output stage is configured to be powered by the second voltage supply. The mobile device further includes a voltage supply selection switch configured to selectably power the driving stage by the second voltage supply when an output power of the PA is less than or equal to a threshold power.

摘要翻译： 本申请公开了包括具有耦合到输出级的驱动级的功率放大器（PA）的移动设备的各种实施方式。 驱动级被配置为可选择地由第一电压源和第二电压源之一供电。 输出级配置为由第二电源供电。 移动设备还包括电压供应选择开关，其被配置为当PA的输出功率小于或等于阈值功率时，通过第二电压供应器可选择地为驱动级供电。

公开(公告)号：US08019293B2

公开(公告)日：2011-09-13

申请号：US12044203

申请日：2008-03-07

申请人： Elias Dagher ,  Kevin Juan ,  Man H. Ku ,  Dmitriy Rozenblit

发明人： Elias Dagher ,  Kevin Juan ,  Man H. Ku ,  Dmitriy Rozenblit

IPC分类号： H01Q11/12 ,  H04B1/04

CPC分类号： H04W52/52

摘要： A controller enables the integration of a DC-DC converter in an amplitude modulation power control loop in a mobile handset. The controller includes an input conditioner and an event sensor. The input conditioner uses a peak detector to track the output of a regulator and responds to available baseband input signals. The event sensor controls a switch that connects the DC-DC converter to a battery in response to a bypass event. The controller bypasses the DC-DC-converter when a transmitter is not enabled. The DC-DC converter is enabled prior to a transmission burst. A target voltage is determined from a series of detected peak voltages from the output of the regulator. The controller commands the DC-DC converter to transition to the target voltage until the end of a transmission burst.

摘要翻译： 控制器使DC-DC转换器在移动手持机的幅度调制功率控制环路中集成。 控制器包括输入调节器和事件传感器。 输入调节器使用峰值检测器来跟踪调节器的输出并响应可用的基带输入信号。 事件传感器控制开关，以响应旁路事件将DC-DC转换器连接到电池。 当变送器未使能时，控制器将旁路DC-DC转换器。 DC-DC转换器在传输突发之前被使能。 目标电压根据来自调节器的输出的一系列检测到的峰值电压确定。 控制器命令DC-DC转换器转换到目标电压，直到传输突发结束。

公开(公告)号：US07787570B2

公开(公告)日：2010-08-31

申请号：US11180940

申请日：2005-07-13

申请人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Morten Damgaard

发明人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Morten Damgaard

IPC分类号： H03D1/24

CPC分类号： H04L27/3809 ,  H03C1/00 ,  H03G3/3047 ,  H04L27/08 ,  H04L27/361 ,  H04W52/06 ,  H04W52/36

摘要： A closed loop power control system for a radio frequency (RF) transmitter comprises a first variable gain element located in a power control loop and configured to receive a power level signal and an inverse representation of a power control signal, a second variable gain element located in the power control loop and configured to receive an error signal and the power control signal, and a third variable gain element configured to receive an amplitude modulated (AM) signal and the power control signal, the third variable gain element having a gain characteristic configured to operate to reduce the gain applied to the AM signal when the power control signal falls below a minimum predetermined value, and to provide the AM signal as a reference signal.

摘要翻译： 用于射频（RF）发射机的闭环功率控制系统包括位于功率控制环路中并被配置为接收功率电平信号和功率控制信号的反向表示的第一可变增益元件，位于 在所述功率控制回路中并且被配置为接收误差信号和所述功率控制信号，以及第三可变增益元件，被配置为接收幅度调制（AM）信号和所述功率控制信号，所述第三可变增益元件具有构造的增益特性 以在功率控制信号低于最小预定值时降低施加到AM信号的增益，并且提供AM信号作为参考信号。

公开(公告)号：US20100159848A1

公开(公告)日：2010-06-24

申请号：US12715705

申请日：2010-03-02

申请人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi

发明人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi

IPC分类号： H04B1/38

CPC分类号： H04B1/0475 ,  H03F1/32 ,  H03F1/34 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/438 ,  H03G3/3047 ,  H04B2001/0433

摘要： A system for saturation detection, correction and recovery in a power amplifier includes a power amplifier, a closed power control loop configured to develop a power control signal (VPC), and power control circuitry configured to reduce the power control signal if the power amplifier is operating in a saturation mode.

摘要翻译： 一种用于功率放大器中的饱和度检测，校正和恢复的系统包括：功率放大器，被配置为开发功率控制信号（VPC）的闭合功率控制回路;以及功率控制电路，其被配置为如果功率放大器为 在饱和模式下工作。

公开(公告)号：US07548737B2

公开(公告)日：2009-06-16

申请号：US11219483

申请日：2005-09-02

申请人： William J. Domino ,  Scott A. Griffin ,  Dmitriy Rozenblit

发明人： William J. Domino ,  Scott A. Griffin ,  Dmitriy Rozenblit

IPC分类号： H04B1/18

CPC分类号： H03C3/0966 ,  H03C3/0941 ,  H03C3/0958 ,  H03D3/007 ,  H04B1/30 ,  H04B1/408 ,  H04L27/20

摘要： A system for transmitting and receiving data is provided. The system includes a direct-conversion receiver that receives a signal modulated on a carrier frequency signal. The direct-conversion receiver includes one or more subharmonic local oscillator mixers. A local oscillator is connected to the direct conversion receiver, and generates a signal having a frequency equal to a subharmonic of the carrier frequency signal. A transmitter is connected to the local oscillator, which uses the local oscillator signal to transmit outgoing data.

摘要翻译： 提供了一种用于发送和接收数据的系统。 该系统包括接收在载波频率信号上调制的信号的直接转换接收机。 直接转换接收器包括一个或多个次谐波本地振荡器混频器。 本地振荡器连接到直接转换接收器，并且产生具有等于载波频率信号的次谐波的频率的信号。 发送器连接到本地振荡器，其使用本地振荡器信号来发送输出数据。

公开(公告)号：US07376116B2

公开(公告)日：2008-05-20

申请号：US10357125

申请日：2003-02-03

申请人： Dmitriy Rozenblit ,  William J. Domino ,  Morten Damgaard ,  Rahul Magoon

发明人： Dmitriy Rozenblit ,  William J. Domino ,  Morten Damgaard ,  Rahul Magoon

IPC分类号： H04B7/216

CPC分类号： H04B1/006 ,  H04B1/0003 ,  H04B1/0028 ,  H04B1/0032 ,  H04B1/406 ,  H04W88/06

摘要： A software defined transmit architecture includes a plurality of individually selectable components that can be selectively enabled to transmit a data signal that complies with any of a plurality of transmission standards. The software defined transmit architecture comprises components that can be enabled by associated logic to transmit, for example, communications signals that comply with the global system for mobile communications (GSM), enhanced data rates for GSM evolution (EDGE), which employs TDMA, and wide band code division multiple access (WCDMA) transmission standards. A single transmit architecture supports multiple transmission standards, thus minimizing the number of components in a multi-band, multi-mode portable transceiver, while reducing the number of active components.

摘要翻译： 软件定义的发射架构包括多个可单独选择的组件，其可以被选择性地启用以发送符合多个传输标准中的任何一个的数据信号。 软件定义的发射架构包括可由相关逻辑启用的组件，例如，发送符合全球移动通信系统（GSM）的通信信号，采用TDMA的GSM演进增强数据速率（EDGE），以及 宽带码分多址（WCDMA）传输标准。 单个传输架构支持多种传输标准，从而最大限度地减少多频带多模式便携式收发器中的组件数量，同时减少有源组件的数量。

公开(公告)号：US20080009248A1

公开(公告)日：2008-01-10

申请号：US11483687

申请日：2006-07-10

申请人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Morten Damgaard ,  Darioush Agahi

发明人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Morten Damgaard ,  Darioush Agahi

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H04B1/04 ,  H03F1/0227 ,  H03G3/3047 ,  H04B2001/0416 ,  H04W52/367 ,  H04W52/52

摘要： A supply voltage controlled power amplifier includes a power amplifier, a closed power control loop configured to generate a power control signal, and a voltage regulator coupled to the power control loop, the voltage regulator including a first regulator stage, a second regulator stage, and a peak detector, wherein an output of the second regulator stage is applied as a feedback signal to the first regulator stage and wherein an output of the first regulator stage is decreased to a level consistent with an output of the power amplifier and an additional operating buffer amount.

摘要翻译： 电源电压控制功率放大器包括功率放大器，被配置为产生功率控制信号的闭合功率控制回路和耦合到功率控制回路的电压调节器，所述电压调节器包括第一调节器级，第二调节器级和 峰值检测器，其中将第二调节器级的输出作为反馈信号施加到第一调节器级，并且其中第一调节器级的输出减小到与功率放大器的输出和附加操作缓冲器一致的电平 量。

公开(公告)号：US20070264946A1

公开(公告)日：2007-11-15

申请号：US11431758

申请日：2006-05-10

申请人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi

发明人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H04B1/0475 ,  H03F1/32 ,  H03F1/34 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/438 ,  H03G3/3047 ,  H04B2001/0433

摘要： A system for saturation detection, correction and recovery in a power amplifier includes a power amplifier, a closed power control loop configured to develop a power control signal (VPC), and power control circuitry configured to reduce the power control signal if the power amplifier is operating in a saturation mode.

摘要翻译： 用于功率放大器中的饱和度检测，校正和恢复的系统包括：功率放大器，被配置为开发功率控制信号的闭合功率控制回路;以及功率控制电路， 功率控制信号，如果功率放大器工作在饱和模式。

公开(公告)号：US07277678B2

公开(公告)日：2007-10-02

申请号：US10281486

申请日：2002-10-28

申请人： Dmitriy Rozenblit ,  William J. Domino ,  Darioush Agahi

发明人： Dmitriy Rozenblit ,  William J. Domino ,  Darioush Agahi

IPC分类号： H01Q11/12 ,  H01B1/04

CPC分类号： H03G3/3047 ,  H03F1/0211 ,  H03F2200/294 ,  H03F2200/372

摘要： A system for a fast, closed power control loop that quickly adjusts the output power of a power amplifier in a non-constant amplitude modulation format. Embodiments of the invention allow fast and precise closed loop power control in a communication system that has a transmit signal that includes a phase modulated component and an amplitude modulated signal component. By detecting the level of the transmit signal before and after the power amplifier, the invention ignores changes in the amplitude of the transmit signal, resulting in an accurate measure of the power amplifier gain. The difference between the level of the transmit signal before and after the power amplifier provides a signal that represents the gain of the power amplifier. The gain signal is compared with a reference signal to develop an error signal. The error signal is used to control the output of the power amplifier.

摘要翻译： 一种用于快速，闭合的功率控制回路的系统，其以非恒定幅度调制格式快速调节功率放大器的输出功率。 本发明的实施例允许在具有包括相位调制分量和幅度调制信号分量的发射信号的通信系统中的快速和精确的闭环功率控制。 通过检测功率放大器之前和之后的发射信号的电平，本发明忽略了发射信号幅度的变化，导致功率放大器增益的精确测量。 功率放大器之前和之后的发射信号的电平之间的差异提供了表示功率放大器的增益的信号。 将增益信号与参考信号进行比较以产生误差信号。 误差信号用于控制功率放大器的输出。

公开(公告)号：US20050009480A1

公开(公告)日：2005-01-13

申请号：US10915186

申请日：2004-08-10

申请人： Nooshin Vakilian ,  Dmitriy Rozenblit ,  William Domino ,  Morten Damgaard

发明人： Nooshin Vakilian ,  Dmitriy Rozenblit ,  William Domino ,  Morten Damgaard

IPC分类号： H03F1/02 ,  H03G3/30 ,  H04Q7/20

CPC分类号： H03F1/0211 ,  H03F1/0233 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3047

摘要： A method for a closed power control feedback loop allows a single portable transceiver architecture to be used for systems in which a transmit signal including both a phase modulated (PM) component and an amplitude modulated (AM) component are supplied to a power amplifier and in systems in which the transmit signal has only a PM component supplied to a power amplifier. By injecting the inverse of the AM portion of the desired transmit signal into the closed power control feedback loop, the feedback loop will not cancel the AM portion of the signal, thus allowing a system where both a PM component and an AM component of the transmit signal are present at the output of the power amplifier to function using a closed power control feedback loop.

摘要翻译： 用于闭合功率控制反馈环路的方法允许单个便携式收发器架构用于其中包括相位调制（PM）分量和调幅（AM）分量两者的发射信号被提供给功率放大器的系统，并且在 其中发射信号仅具有提供给功率放大器的PM分量的系统。 通过将期望的发射信号的AM部分的反相注入到闭合功率控制反馈环路中，反馈回路将不会消除信号的AM部分，从而允许其中PM分量和发射的AM分量两者的系统 信号存在于功率放大器的输出端，以使用闭合功率控制反馈回路工作。