音频放大器

PWM技术在音频放大器中的应用

The Application of the PWM Technology in Audio Amplifier

基于D类音频放大器MAX9736A/B的MP3播放器设计

Design of MP3 player based on class D audio amplifier MAX9736A / B

低EMI、D类音频放大器及其应用

Low EMI , D audio amplifier

ClassD音频放大器由于具有高效率、低功耗的优点，被越来越多地应用在诸如PDA、手机、MP3等便携式设备中。

Class D audio amplifier is widely used in many portable apparatuses such as PDA 、 mobile phones and MP3s due to its high efficiency and low power dissipation .

论述了提高音频放大器效率的方法，介绍了D类放大器的电路组成，输出采用全桥式双极输出，采用占空比在0-100%可调的PWM信号进行控制使效率得到大幅度的提高。

States the way of improving the efficiency of audio frequency amplifer and introduces circuit of D-type amplifer . It also introduces full wave bridges bipolar output circuit and full utilize may melody high and low proportion of PWM sigal to improve great range efficiency .

新型绿色能效D类音频放大器设计应用

Application & Design of New Green Efficiency Class-D Audio Power Amplifier

高性能音频放大器助您增强平面显示器的音频功能

High Performance Audio Amplifier Brings Your Audio into Your Flat Panel Display

高效D类音频放大器MAX9700/MAX9712

High Efficiency Class D Audio Power Amplifier MAX9700 / MAX9712

为便携式电子设备设计D类音频放大器

Designing a Class D Audio Amplifier for Portable Electronics

近年来，数字音频放大器应用相当广泛，用以提高效率。

In recent years , digital audio amplifiers are widely used to improve efficiency .

降低音频放大器噪声的方法

Method of Reducing Noise of Audio Amplifier

数字音频放大器设计需要考虑的因素

Considerations for Digital Audio Amplifier Design

高效率音频放大器的研究

Research on Audio Frequency Amplifer

同时，还利用了D类音频放大器内置的脉宽调制器实现发射机调制电路的集成。

Class D audio amplifier is used in this design , which built-in pulse-width modulator transmitter modulation is to achieve integration .

同时还详细描述了前置音频放大器，三角波产生电路、比较器，死区控制电路，输出驱动电路等子模块的设计内容。

And then describe the module of pre audio amplifier , triangle generator , comparator , death time control and output driver etc.

通过分析影响音频放大器的主要噪声源，从内因和外因两方面提出了抑制噪声的措施和方法。

In this paper , a method was applied to reduce the noise by analyzing the main noise resource affecting the audio amplifier .

钟建鹏先生是美国国家半导体中国华东地区应用工程师，负责华东地区的电源管理及音频放大器产品的技术支援。

Rick Zhong is Field Application Engineer of National Semiconductor and responsible for technical support of power and audio amplifier products in the East China region .

除此之外，调试人员还应将电磁波滤波器连接至音频放大器音频输出端，诸如铁氧体磁环均能达到类似的过滤效果。

Apart from this step , designers should also connect an EMI filter , such as a ferrite bead , to the output of the amplifier .

随着便携式电子设备体积和重量不断减小，应用于便携式电子设备的音频放大器设计趋势主要朝着高集成度，高效率和高保真度的方向发展。

With continuously shrinking of portable electronic equipment , the main trends of the audio power amplifier design are high density , high efficiency and high fidelity .

新设计的锂离子电池现在有一个音频放大器内置，让您使用外部扬声器，而不需要任何外部助推器。

The newly designed Li-lon battery pack now has an audio amplifier built in , allowing you to use an external speaker , without the need for any external booster .

本文在分析D类音频放大器特点及发展现状的基础上，结合数字轨道电路的技术要求，介绍了D类放大器新的应用成果。

Based on the analysis of the characteristics of D-type audio frequency amplifier and the current situation of its development , the paper introduces the new application achievements of D-type amplifier with reference to the technical requirements of digital track circuit .

通过测试典型的音频放大器，检测虚拟式音频放大器测试的实用效果，测量音频信号的电压与频率、时域幅值分析、频域分析、失真分析和信噪比等。

The practical effect of the virtual audio frequency analyzing system was tested by measuring a typical audio frequency amplifier and lots of the characteristic parameters as the voltage level , frequency , time domain analyzing , frequency domain analyzing and the distortion of the audio signal could be measured .

ClassD音频功率放大器研究与设计

Research and Design of Class D Audio Power Amplifier

高效率G类音频功率放大器的分析与设计

Analysis and Design of High Efficiency G-type Audio Power Amplifier

D类音频功率放大器的全桥PWM改进方案与实现

Improvement and Realization of Full Bridge PWM for Class-D Audio Power Amplifier

本文设计了一种给G类音频功率放大器提供自适应电源的双模电荷泵电路。

A dual mode charge pump to produce an adaptive power supply for a class G audio power amplifier is presented .

基于PWM和Sigma-Delta调制的数字音频功率放大器的实现

Implementation of Digital Audio Power Amplifier Based on PWM and Sigma-Delta Modulation

本文论述双极型功率开关电路和CMOS音频功率放大器电路设计。

The paper focuses on circuit design of power switch with bipolar technology and audio amplifier with CMOS technology .

理论上音频功率放大器的PWM调制器的载波频率越高，音质效果就越好。

Theoretically , the higher the carrier frequency of PWM modulator of audio amplifier , the better the acoustical effect is .

在音频功率放大器的市场上，AB类一直处于统治地位。

In the audio power amplifier market , the class AB has been in a dominant position .