Power integrated circuits ( pic ' s ) have been developed for applications including : power converters , motor controllers , fluorescent lighting ballasts , automotive switching , video amplifiers , bridge circuit drivers , display drivers , etc 功率集成电路简称pic ，它被广泛应用于包括功率转换器、马达控制、荧光灯整流器、自动开关、视频放大器、桥式驱动电路以及显示驱动等多个领域。
Many public toilets managed by the fehd have been installed with new features , such as automatic infrared sensor water taps , hand dryers , urinal bowls and hand basins at childrens height , baby changing counters , and separate racks inside toilets to make them less wet and slippery 很多本署管理的公厕已安装新设施，例如红外线感应自动开关水头乾手机专供儿童使用的尿兜和洗手盆婴儿?生台，以及厕格内供放置个人物品的置物架。
Many public toilets managed by the fehd have been installed with new features , such as automatic infrared sensor water taps , hand dryers , urinal bowls and hand basins at childrens height , baby changing counters , and separate racks inside toilet compartments for users to place their personal belongings 本署所管理的多个公厕已安装新设施，例如红外线感应自动开关水头乾手机专为儿童而设的尿兜和洗手盆婴儿?生台，以及厕格内供市民放置个人物品的置物架。
While shutter doors and windows can conduct such settings , temperature and wind control , and that is when the room reaches a certain temperature or outdoors when the wind is strong it will automatically switch , so you have to go to work when no worries , regular design can make shutter doors and windows at a predetermined time switch , and a cluster of design can be so the home fans several windows simultaneously switching 同时卷帘门窗还可进行这样的设置，温控和风控，即当室内达到一定的温度或室外刮大风的时候它会自动开关，这样您在上班的时候也没有后顾之忧，定时设计则可以使卷帘门窗在预定的时间开关，而组群设计还可以使家中的几扇门窗同步开关。
According to recording data of higher level monitor and control system when main motor drive system for four - high medium plate mill is operated , and relation between armature voltage of dc electromotor and ac input voltage of inverter , trip cause of dc fast automatic switch was analyzed in detail , and specific countermeasure and measures are given 根据中板四辊轧机主电机传动系统运行时的上级监控系统记录数据，以及直流电机电枢电压与变流器交流侧输人电压的关系，详尽地分析了直流快速自动开关跳闸故障原因，并提出具体的对策及措施。
