Teridian 78M6618八路能量测量方案

Teridian公司的78M6618是高度集成的独立监测八路单相AC出口能量的IC,集成了多个主机接口,LCD驱动器和可配置的I/O口.78M6618提供用于和电压与电流传感器接口的十个模拟输入端,并具有21位delta-sigma ADC,独立的32位计算引擎(CE),数字温度补偿以及精密的电压基准源,能在2000:1动态范围内提供优于0.5%的精度,非常适合用在嵌入式高精度AC功率和能量的测量.本文介绍了78M6618主要特性,功能方框图以及其中的AFE方框图,MPU/CE通信方框图和78M6618 应用方框图.

78M6618 Octal Power and Energy Measurement IC

The Teridian 78M6618 is a highly integrated IC for independent monitoring and measurement of up to eight (8) single-phase AC outlets. With multiple host interface options, an integrated LCD driver, and configurable I/Os, it is ideal for metered power distribution units (PDUs) and rack enclosures for the data center as well as intelligent power strips and sub panels in the grid-friendly digital home.

At the measurement interface, the device provides ten analog inputs for interfacing to voltage and current sensors. Voltages from the sensors are fed to Teridian’s patented Single Converter Technology® which uses a 21-bit delta-sigma ADC, independent 32-bit compute engine (CE), digital temperature compensation, and precision voltage references to provide better than 0.5% accuracy over a wide 2000:1 dynamic range.
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