计算机ATX电源的原理及故障分析  

Analysis on Operating Principle and Faults of ATX Power Source of Computer

作　　者：韩勇[1] 张晓峰[1] 许景辉[2] 

机构地区：[1]西北农林科技大学信息工程学院,陕西杨凌712100 [2]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《水利与建筑工程学报》2008年第3期88-90,100,共4页Journal of Water Resources and Architectural Engineering

摘　　要：首先论述了计算机ATX电源的组成,ATX电源的新增功能及特点。分析了ATX主电源的工作原理,辅助电源的工作原理,开机信号产生原理。探讨了计算机ATX电源的几种常见故障,总结了查找ATX电源故障的步骤,查找电源故障的两种方法:冷态检测法,热态测试法。The composition, new functions and characters of ATX power source of computer are introduced firstly, the operating principle of its host power source and auxiliary power source and the principle of opening signal are analyzed, and several kinds of common faults of ATX power source are discussed. Finally, the processes and two kinds of methods for seeking power failure, namely on-line detection and off-line detection, are concluded.

关 键 词：ATX电源 故障 冷态检测法 热态测试法 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]