Maxim 78M6613单相交流电能测量解决方案

Maxim 公司的78M6613是高度集成的单相交流电能测量器件,在2000:1电流范围和温度范围内精度优于0.5% Wh,基准电压温度系数小于40ppm/℃,四个传感器输入,带独立32位计算引擎(CE)的22位Delta-Sigma ADC,采用8位MPU(80515),带安全保密的32KB闪存,UART接口和多达10个通用5V I/O引脚,主要用在建筑物自动化,家用电器,数据中心,通信以及存储电源,家庭自动化和室内外照明.本文介绍了78M6613主要特性, 功能方框图, 应用框图以及78M6613评估板框图,电路图,材料清单和PCB元件布局图.

The 78M6613 is a highly integrated IC for simplified implementation of single-phase AC power measurement into power supplies, smart appliances, and other applications with embedded AC load monitoring and control. It is packaged in a small, 5mm x 5mm, 32-pin QFN package for optimal space savings.

At the measurement interface, the device provides four analog inputs for interfacing to voltage and current sensors. Voltages from the sensors are fed to our Single Converter Technology® that uses a 22-bit delta-sigma ADC, independent 32-bit compute engine (CE), digital temperature compensation, and precision voltage references to provide better than 0.5% power measurement accuracy over a wide 2000:1 dynamic range.
..

查看全文