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CN110463034A - 数字功率放大器 - Google Patents

数字功率放大器 Download PDF

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Publication number
CN110463034A
CN110463034A CN201780089038.2A CN201780089038A CN110463034A CN 110463034 A CN110463034 A CN 110463034A CN 201780089038 A CN201780089038 A CN 201780089038A CN 110463034 A CN110463034 A CN 110463034A
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Prior art keywords
pwm
dsm
coupled
power amplifier
signal
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CN201780089038.2A
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CN110463034B (zh
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黄伟
孙益军
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

本申请公开了一种数字功率放大器，属于功率放大器领域，所述数字功率放大器包括：第一DSM、第二DSM、第一PWM、第二PWM、低通滤波器、数字上变频器、梳状滤波器和功率放大器；第一PWM与第一DSM耦合，用于调制第一DSM输入第一DSM信号，并输出第一PWM信号；第二PWM与第二DSM耦合，用于调制第二DSM输入的第二DSM信号，并输出第二PWM信号；低通滤波器分别与第一PWM和第二PWM耦合；数字上变频器与低通滤波器耦合，用于调制低通滤波后的第一PWM信号和低通滤波后的第二PWM信号，并输出预定射频频率的第三PWM信号；梳状滤波器与数字上变频器耦合，用于抑制第三PWM信号的PWM谐波；功率放大器与梳状滤波器耦合，用于对谐波抑制后的第三PWM信号进行功率放大处理。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201780089038.2A 2017-03-27 2017-03-27 数字功率放大器 Active CN110463034B (zh)

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PCT/CN2017/078267 WO2018176190A1 (zh) 2017-03-27 2017-03-27 数字功率放大器

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CN110463034A true CN110463034A (zh) 2019-11-15
CN110463034B CN110463034B (zh) 2021-02-09

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WO (1) WO2018176190A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110677216B (zh) * 2019-09-29 2022-01-18 华南理工大学 面向电子对抗的数字射频前端及射频信号频率检测方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273456A (zh) * 1999-05-08 2000-11-15 阎文革 1比特全数字高效率功率放大器
CN1968007A (zh) * 2005-11-16 2007-05-23 弥亚微电子（上海）有限公司 一种适用于低压载波通信的数字功率放大器
US20070176810A1 (en) * 2006-02-02 2007-08-02 Jae-Wook Lee Pulse width modulation in digital power amplifier
CN101390287A (zh) * 2005-12-30 2009-03-18 D2音频有限公司 具有基于仿真的反馈的数字pwm放大器
CN101459410A (zh) * 2007-12-12 2009-06-17 松下电器产业株式会社 D类放大器
CN201332385Y (zh) * 2008-12-24 2009-10-21 比亚迪股份有限公司 一种数字音频功率放大器及音频处理设备
CN102684701A (zh) * 2012-04-27 2012-09-19 苏州上声电子有限公司 基于编码转换的数字扬声器驱动方法和装置
CN103166652A (zh) * 2011-12-15 2013-06-19 德克萨斯仪器股份有限公司 数字时间交织rf-pwm发射机
CN103701465A (zh) * 2013-12-02 2014-04-02 苏州上声电子有限公司 一种基于多比特△—σ调制的数字扬声器系统实现方法和装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101262240A (zh) * 2008-04-25 2008-09-10 浙江大学 一种易于硬件实现的全数字频率变换的方法及其装置
CN106160677A (zh) * 2016-06-16 2016-11-23 长沙湘计海盾科技有限公司 一种载波相移脉宽调制型数字功率放大器及功率放大方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273456A (zh) * 1999-05-08 2000-11-15 阎文革 1比特全数字高效率功率放大器
CN1968007A (zh) * 2005-11-16 2007-05-23 弥亚微电子（上海）有限公司 一种适用于低压载波通信的数字功率放大器
CN101390287A (zh) * 2005-12-30 2009-03-18 D2音频有限公司 具有基于仿真的反馈的数字pwm放大器
US20070176810A1 (en) * 2006-02-02 2007-08-02 Jae-Wook Lee Pulse width modulation in digital power amplifier
CN101459410A (zh) * 2007-12-12 2009-06-17 松下电器产业株式会社 D类放大器
CN201332385Y (zh) * 2008-12-24 2009-10-21 比亚迪股份有限公司 一种数字音频功率放大器及音频处理设备
CN103166652A (zh) * 2011-12-15 2013-06-19 德克萨斯仪器股份有限公司 数字时间交织rf-pwm发射机
CN102684701A (zh) * 2012-04-27 2012-09-19 苏州上声电子有限公司 基于编码转换的数字扬声器驱动方法和装置
CN103701465A (zh) * 2013-12-02 2014-04-02 苏州上声电子有限公司 一种基于多比特△—σ调制的数字扬声器系统实现方法和装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
RAHMI HEZAR等: ""A PWM Based Fully Integrated Digital Transmitter/PA for WLAN and LTE Applications"", 《IEEE JOURNAL OF SOLID-STATE CIRCUITS》 *
刘宁: ""D类音频功放中数字脉宽调制器的研究与设计"", 《中国优秀硕士学位论文全文数据库 信息科技辑》 *
彭振兴 等: ""基于PWM和Sigma-Delta调制的数字音频功率放大器的实现"", 《电子工程师》 *

Also Published As

Publication number Publication date
CN110463034B (zh) 2021-02-09
WO2018176190A1 (zh) 2018-10-04

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