三相电能计量芯片ATT7026及应用  

The Three-phase Electric Energy Calculation Chip ATT7026 and Its Application

作　　者：罗璇[1] 干敏梁[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《中国仪器仪表》2004年第12期39-42,共4页China Instrumentation

摘　　要：ATT7026是一个高精度三相电能计量芯片,主要用于三相三线或三相四线,能测量电压和电流有效值、功率、功率因数等多个参数,在变配电智能测控仪中采用,既能降低成本,简化电路,又能提高测控仪的精度。本文主要介绍了ATT7026的内部结构和它的工作原理,并给出了它在智能测控仪中的应用接口电路。ATT7026 is a high accurate three-phase electric energy calculation chip, and it is often used in three-phase three-wire or three-phase four-wire system, and it can calculate many parameter include the effective of voltage and current, power , power factor etc.Utilizing it on the intelligent measurement and controlling instrument of transfer or distributing power system, it can reduce the product consume and simplify the inerface circuit, and also raise the accuracy of monitoring and controlling instrument. The paper introduces the performance features and the theory of operation, and provides the application circuit of ATT7026 in the intelligent measurement and controlling instrument.

关 键 词：三相电能计量芯片 三相四线 功率因数 有效值 电压 测控仪 电流 智能测控 接口电路 内部结构 

分 类 号：TM933.4[电气工程—电力电子与电力传动]