摘要
介绍由单片机和SA8282研制的三相逆变电源。给出了系统总体构成和主电路设计,介绍了SPWM产生器SA8282的结构特性和工作原理,SA8282全数字操作、工作方式灵活、频率范围宽、精度高功能强,可实现系统的智能化设计。文中详细介绍了采用单片机AT89C51和SPWM产生器SA8282组成系统控制器的软硬件设计,实现了逆变电源输出电压闭环控制。实验表明,由SA8282为控制芯片的逆变电源结构简单、输出波形好、性能稳定可靠,适合于中、小功率的应用场合。
The three phase inverter of fnll digital control based on MCU AT89C51 and SPWM generator IC SA8282 is introduced in this paper.the system construction and main circuit design of inverter are given,the function feature and operation principle of SPWM generation IC SA8282 is described.the hardware and software design of controller implemente closed-loop of voltage by using AT89C51 and SA8282 is discussed in detail.experimental results shown the three phase output voltage waveform is quit good,the performance meets the demand.
出处
《微计算机信息》
北大核心
2006年第10Z期122-124,246,共4页
Control & Automation
