基于ATmega128L和RN8209的多功能数字功率表的设计

Design and Implementation of Multi-Function Wattmeter with Digital Display Based on ATmega128L and RN8209

介绍了一种以ATmega 128L单片机为核心,采用专用电能计量芯片RN8209设计的单相多功能数字功率表。提供了其硬件设计,并在此硬件平台的基础上采用模块化软件设计方法实现有功功率、无功功率、视在功率和功率因数测量。该功率表具有多功能、高精度、高性能、低成本等特点,有一定推广价值。

This thesis introduced a single-phase and multi-function wattmeter, which is designed with a special power measuring chip based on ATmega128L.The hardware and software implementation methods were given to measure the active power reactive power、apparent power and powerfactor.This wattmeter worths promotion for its merits of high performance,high accuracy, low power and low cost.