一种新型SCR移相触发控制芯片  

A new SCR phase-shift trigger IC

作　　者：游淑民[1] 冯晖[1] 林涛[1] 

机构地区：[1]同济大学超大规模集成电路研究所,上海201804

出　　处：《电子技术应用》2010年第12期51-54,57,共5页Application of Electronic Technique

摘　　要：针对现有的三相移相触发芯片无法在较大噪声情况下工作,以及无法适应现有电网频率漂移的问题,提出了一种新型的SCR移相触发电路,具有改进的全数字去噪功能和适应电网频率漂移功能的设计方案。通过仿真和实际测试,该触发器能够躲开相对输入信号20%的噪声干扰,并且能在电网频率47 Hz～63 Hz的环境下工作,具有重要的工程应用价值。Aiming at the problems of unable to work of electricity network in existing three-phase phase trigger with high input noise and frequency drift due to the unstable frequency chip, this paper provides a new SCR phase-shift trigger circuit with an improved circuit to get rid of the noise and a function to adapt the frequency drift. By simulation and practical test, this trigger can avoid 20% input noise, and can work under frequency 47 Hz-63 Hz of the grid. The method is of great engineering value.

关 键 词：可控硅 数字移相 抖动 全数字 频率补偿 

分 类 号：TN431.2[电子电信—微电子学与固体电子学]