公开(公告)号：US20150091655A1

公开(公告)日：2015-04-02

申请号：US14060171

申请日：2013-10-22

Applicant: BROADCOM CORPORATION

Inventor： Dmitriy Rozenblit ,  Vipin Kumar Aggarwal

IPC: H03F3/21 ,  H03F3/19 ,  H03F1/02

CPC classification number: H03F3/19 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: A method and apparatus is provided to improve upon the efficiency of a power amplifier. Suitable hardware/software in the form of circuitry, logic gates, and/or code functions to construct an envelope tracking waveform of an input communications signal and modulate the input supply voltage based on power amplifier circuitry operational parameters such as slew rates.

Abstract translation: 提供了一种提高功率放大器效率的方法和装置。 以电路，逻辑门和/或代码功能的形式的合适的硬件/软件，用于构建输入通信信号的包络跟踪波形，并且基于功率放大器电路对诸如转换速率的操作参数调制输入电源电压。

公开(公告)号：US09197255B2

公开(公告)日：2015-11-24

申请号：US14032688

申请日：2013-09-20

Applicant: BROADCOM CORPORATION

Inventor： Mohsen Pourkhaatoun ,  Philippe Riondet ,  Alireza Tarighat Mehrabani ,  Vipin Kumar Aggarwal

IPC: H04B1/04 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24

CPC classification number: H04B1/0458 ,  H03F1/0238 ,  H03F1/34 ,  H03F3/195 ,  H03F3/24 ,  H03F3/245 ,  H04B2001/0416 ,  H04B2001/0433

Abstract: A RF transmitter includes a power amplifier that generates a transmit signal modulated with outbound data for transmission to a remote communication device via an antenna section. A supply voltage to power the power amplifier is adjusted based on an average power tracking signal. A reflected power from the antenna section is measured. The average power tracking signal is adjusted based on the reflected power to compensate for the changes in impedance of the antenna section and to maintain a desired linearity.

Abstract translation: RF发射机包括功率放大器，其产生用出站数据调制的发射信号，以经由天线部分传输到远程通信设备。 基于平均功率跟踪信号调整对功率放大器供电的电源电压。 测量来自天线部分的反射功率。 基于反射功率来调整平均功率跟踪信号以补偿天线部分的阻抗的变化并保持期望的线性度。

公开(公告)号：US09231534B2

公开(公告)日：2016-01-05

申请号：US14060171

申请日：2013-10-22

Applicant: BROADCOM CORPORATION

Inventor： Dmitriy Rozenblit ,  Vipin Kumar Aggarwal

IPC: H01Q11/12 ,  H03F3/19 ,  H03F1/02 ,  H03F3/24

CPC classification number: H03F3/19 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: A method and apparatus is provided to improve upon the efficiency of a power amplifier. Suitable hardware/software in the form of circuitry, logic gates, and/or code functions to construct an envelope tracking waveform of an input communications signal and modulate the input supply voltage based on power amplifier circuitry operational parameters such as slew rates.

Abstract translation: 提供了一种提高功率放大器效率的方法和装置。 以电路，逻辑门和/或代码功能的形式的合适的硬件/软件，用于构建输入通信信号的包络跟踪波形，并且基于功率放大器电路对诸如转换速率的操作参数调制输入电源电压。

公开(公告)号：US20150072632A1

公开(公告)日：2015-03-12

申请号：US14032688

申请日：2013-09-20

Applicant: BROADCOM CORPORATION

Inventor： Mohsen Pourkhaatoun ,  Philippe Riondet ,  Alireza Tarighat Mehrabani ,  Vipin Kumar Aggarwal

IPC: H04B1/04

CPC classification number: H04B1/0458 ,  H03F1/0238 ,  H03F1/34 ,  H03F3/195 ,  H03F3/24 ,  H03F3/245 ,  H04B2001/0416 ,  H04B2001/0433

Abstract: A RF transmitter includes a power amplifier that generates a transmit signal modulated with outbound data for transmission to a remote communication device via an antenna section. A supply voltage to power the power amplifier is adjusted based on an average power tracking signal. A reflected power from the antenna section is measured. The average power tracking signal is adjusted based on the reflected power to compensate for the changes in impedance of the antenna section and to maintain a desired linearity.

Abstract translation: RF发射机包括功率放大器，其产生用出站数据调制的发射信号，以经由天线部分传输到远程通信设备。 基于平均功率跟踪信号调整对功率放大器供电的电源电压。 测量来自天线部分的反射功率。 基于反射功率来调整平均功率跟踪信号以补偿天线部分的阻抗的变化并保持期望的线性度。