一种新型的正弦脉宽调制技术研究

提出了一种基于NiosⅡ处理器的SPWM（Sinusoidal Pulse Width Modulationl系统设计方案，该系统主要由键盘、SPWM模块和液晶3部分组成。键盘实现SPWM模块的输入参数的控制；SPWM模块根据键盘的输人参数产生SPWM波形；液晶显示SPWM波形的数字值和输入参数值。整个系统由NiosⅡ处理器实现控制，应用DSP Builder搭建模型避免编写复杂硬件编程语言，而且可以实现幅度、相位和频率可控。经过行为、功能和时序三级仿真．实验结果表明纂于NiosⅡ处理器的SPWM系统可以方便的实现电机的智能控制，实现输入参数可控制和输出结果可观测。

A New Sinusoidal Pulse Width Modulation

Proposed a Nios Ⅱ processor-based sinusoidal pulse width modalation design,The system mainly consists of the keyboard, SPWM module and liquid crystal three parts. Keyboard input parameters to achieve SPWM control module; SPWM module according to keyboard input parameters produce SPWM waveform;LCD SPWM waveform digital values and input parameter valueso The entire system is Niosll processor for control, application DSP Builder to build models to avow the preparation of complex hardware programming language, also to achieve amplitude, phase and frequency control, Through behavior, functional and timing simulation of three experimental results show that the SPWM based Niosll processor system can facilitate the realization of intelligent motor control, can control the input parameters and output results can be observed.