基于MATLAB的D类功率放大器的仿真分析  

Simulative Analysis of the Amplifier of Class D Based on MATLAB

作　　者：万国春[1] 陈岚[1] 彭健飞[1] 

机构地区：[1]江西科技师范学院,江西南昌市330013

出　　处：《江西科技师范学院学报》2004年第5期75-77,81,共4页Journal of Nanchang Vocational & Technical Techers' College

基　　金：江西省科技攻关重点项目(课题编号:200210030)。

摘　　要：D类功率放大器是将欲放大的信号转化为脉宽调制信号,用来驱动PWM开关逆变器;相比线性功放,其输出信号中含有较高的谐波成分,本文对波形失真进行了仿真分析,并提出了一种补偿方法。The amplifier of class D aims to convert the input analog signals into pulse width modulated signals, which are used to drive PWM inverters with switch-lag-times. The output signals contain more harmonic components than their linear counterpart. In the paper, waveform distortion is analyzed and a compensated method is put forward.

关 键 词：D类功率放大器 功放 信号 波形失真 脉宽调制 仿真分析 PWM 谐波 逆变器 开关 

分 类 号：G633[文化科学—教育学] TN722.75[电子电信—电路与系统]