基于C8051F330的单相逆变电路设计  

Design of single-phase inverter based on C8051F330

作　　者：宋连庆[1] 张亚林[1] 宋淑淑[1] 喻俊[1] 

机构地区：[1]西安工程大学电子信息学院,西安710048

出　　处：《电子测量技术》2014年第8期89-92,共4页Electronic Measurement Technology

摘　　要：基于高速、高性能单片机C8051F330研究了PCA模块的SPWM信号产生原理以及软件实现方法。将C8051F330的PCA模块配置为高速输出方式,在该方式下每当PCA计数器PCAOH:PCAOL的值与该模块的捕捉/比较寄存器(PCAOCPHn:PCAOCPLn)相匹配时,CEXn引脚发生电平转换并触发一次中断。并通过实验产生具有控制精度高、响应速度快的SPWM,这也是逆变电路的最核心的部分,用于逆变电源的设计时具有精准、稳定、可调性强的特点。它同样适用于日常生活、工业生产和科学研究领域对控制系统的需要。The principle for the Sinusoidal Pulse Width Modulation（SPWM）signal of PCA module is studied and the methods of software design on C8051F330 are presented . In High-Speed Output mode, a module＇s associated CEX n pin is toggled each time a match occurs between the PCA Counter and the module＇s 16-bit capture/compare register （PCAOCPHn and PCAOCPLn）. Experimental results show that the C8051F330--based SPWM signal has the advantages of high precision and fast response. It is the most impotent part of inverter circuit. When used in the design of inverter power supply , it has the characteristics of accurate, stable and strong adjustability, it is suitable for daily life, industrial production and scientific research in the control system field.

关 键 词：C8051F330 PCA SPWM 逆变 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]