基于F28xDSP中PWM模块的励磁调节器移相脉冲放大电路  

Phase-shifted Pulse Amplification Unit of Excitation Controller Based on PWM of F28xDSP

作　　者：李啸骢[1] 游晓枫[1] 邓裕文[1] 李秋文[1] 王乐[1] 

机构地区：[1]广西大学电气工程学院,广西南宁530004

出　　处：《工业控制计算机》2011年第9期99-100,103,共3页Industrial Control Computer

基　　金：国家自然科学基金资助项目(50747026);广西科学基金资助项目(桂科自0728027);南宁市市校科技合作专项项目(200801029D);北海市市校科技合作专项项目(北科合200801027)

摘　　要：利用F28xDSP中的PWM模块,产生双窄移相触发脉冲,再经脉冲放大电路,将DSP输出的TTL电平转换为能够驱动可控硅的电平。同时,为了进一步减少损耗和提高晶闸管导通可靠性,还讨论了通过增加HSP50415电路,再结合软件实现中频调制双窄脉冲来驱动晶闸管。This design use the PWM module of F28xDSP to produce double narrow phase-shifted pulse,and it goes through a amplification unit to convert the TTL electrical level of output from DSP into the one which could drive silicon-controlled rectifier.Meanwhile,in order to reduce the power loss and increase the reliability of thyristor＇s breakover.This design also dis- cusses through addding a HSP50415 and integrating software to achieve the desired result that intermediate-frequency modulated double narrow phase-shifted pulse which could drive silicon-controlled rectifier.

关 键 词：DSP PWM 励磁控制 移相脉冲 中频调制 

分 类 号：TN721[电子电信—电路与系统]