摘要
主要介绍了专用单片机C504中CCU的编程技巧和SPWM实现方法,利用该方法,可以实现三相交流变频控制波形的实时解算,频率范围可在1~150Hz范围内变化,完全满足家用空调的要求。论文还给出了变频、变调制度的原理、计算算法和控制流程。最后,给出了实验结论。
In this paper,the programming skill and SPWM implementing method of CCU in special single-chip C504 are introduced.Real-time calculation of waveform about three-phase AC frequency modulation and control can be implemented by using this methed,and the frequency varies from 1Hz to 150Hz,which can meet the needs of domestic air-conditioning completely.At the same time,the principle,arithmetic and control flow chart of frequency conversion and modulate degree conversion are indicated.Finally,the experimentation method is presented.
出处
《微处理机》
2010年第2期36-38,41,共4页
Microprocessors
