VHDL采用自然采样法写的SPWM，里面有正弦表，可以通过外接输入正弦波和三角波的频率。 -VHDL using written natural sampling SPWM, there are sine table, you can enter through the external sinusoidal and triangular wave frequency.

一个Windows下演示SPWM功能的源程序， 关键词：SPWM、C++，MinGW，Obtain_Studio-Under a Windows demo source SPWM function, Key words: SPWM, C++, MinGW, Obtain_Studio