基于TMS320F2812生成移相PWM的2种办法  

Two Methods of Generating Phase-Shifted PWM Based on TMS320F2812

作　　者：卢建华 郝凯敏 杨文奇 李飞 贾临生 LU Jianhua;HAO Kaimin;YANG Wenqi;LI Fei;JIA Linsheng(Naval Aviation University,Yantai Shandong 264001,China;The 92283rd Unit of PLA,Shanghai 201900,China)

机构地区：[1]海军航空大学,山东烟台264001 [2]92283部队,上海201900

出　　处：《海军航空工程学院学报》2020年第6期478-482,共5页Journal of Naval Aeronautical and Astronautical University

摘　　要：移相PWM波是很多开关电源常用的驱动脉冲信号。双向全桥直流变换器(Bidirectional-Full-Bridge DCDC Converter,BDC)在双重移相控制方式下时需要4组两两互补的移相PWM波。文章基于TMS320F2812型DSP(Digital Signal Processor)分析了2种生成移相PWM的方法。为提高双向全桥直流变换器工作的安全性和可靠性,为移相PWM波设置死区时间。对所提出的方法进行测试后结果良好,对于双向全桥直流变换器闭环控制系统的构建具有重要意义。Phase-shifted PWM wave is a driving pulse signal commonly used in many switching power supplies.The bidi⁃rectional-full-bridge DC-DC converter requires four complementary phase-shifted PWM waves in the dual-phase-shift control mode.Two methods for generating phase-shifted PWM based on TMS320F2812 DSP are presented in this paper.In order to improve the safety and reliability of the bidirectional-full-bridge DC-DC converter,dead time is set for the phase-shifted PWM wave.The proposed method is tested with good test results,which is of great significance for the con⁃struction of closed-loop control system of the bidirectional full-bridge DC-DC converter.

关 键 词：双向全桥直流变换器 TMS320F2812 双重移相控制 

分 类 号：TM42[电气工程—电器]