基于ATmega8单片机的SPWM调制信号的实现  

The Implementtation of Modulation Signals in a SPWM Mode Based on ATmega8

作　　者：陈毅光[1] 秦会斌[1] 屈力扬[1] 

机构地区：[1]杭州电子科技大学电子信息学院,杭州310018

出　　处：《电子器件》2010年第5期599-602,共4页Chinese Journal of Electron Devices

基　　金：浙江省自然科学基金资助(Y1080589)

摘　　要：针对传统硬件系统产生SPWM(正弦脉冲调制)波存在电路复杂,离散性大以及不易控制等缺点,介绍了一种用ATmega8单片机相位修正PWM模式产生SPWM波的方法。运用面积等效原理生成SPWM脉冲序列,并将此SPWM波应用于单相逆变电源。实验结果表明波形良好,证明了利用其产生SPWM波的可行性和有效性。Aiming at the hardware system to produce SPWM（Sine Pulse Wave Modulation）wave has some weakness including large discreteness,complex circuit and difficult control,introduces a method to generate SPWM wave by ATmega8 microcontroller in phase correct PWM model.Using the equivalence principle to generate SPWM pulse,which will be applied to the single-phase inverter power.Experimental result shows that the wave is well,and the method to produce SPWM wave is feasible and effective.

关 键 词：ATMEGA8单片机 SPWM 面积等效 逆变器 

分 类 号：TN914.2[电子电信—通信与信息系统]