基于8052单片机的三相全控桥式整流移相触发电路的实现  

Realization of Phase Control and Triggering Circuit of Three-phase Fully-controlled Bridge Rectification Based on SCM 8052

作　　者：马道明[1] 魏志强[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650051

出　　处：《自动化信息》2009年第10期41-42,共2页Automation Information

摘　　要：该文介绍了基于8052单片机实现三相全控桥式整流电路中晶闸管移相触发的方法。三相全控桥通常有单宽脉冲触发和双窄脉冲触发两种方式，该方案采用双窄脉冲触发方式，克服了单宽脉冲触发方式所带来的缺点。还采用了中断查询方法来查询过零点出现的时刻，从而获得了满足技术要求的触发脉冲。The paper introduces the method of realizing the phase shift triggering of thyristor in three-phase fully-controlled bridge rectifier circuit based on SCM8052. Usually, there are two ways --- the single broad pulse triggering and the double narrow pulse triggering. The scheme overcame the disadvantages brought from the single broad pulse triggering mode by adopting the double narrow pulse triggering mode. And also, the interrupt querying method is used to detect the zero crossing, thus resulting in the satisfactory trigger pulse.

关 键 词：单片机 晶闸管 整流电路 中断 

分 类 号：TM461[电气工程—电器]