Cirrus CS5480三相电能测量解决方案

Cirrus公司的CS5480是高精度三相电能测量模拟前端,每路集成了单独的4阶Delta-Sigma模数转换器(ADC),基准电路和已验证的EXL信号处理核,提供有功,无功和表观能量测量.4000:1动态范围的能量测量精度为0.1%,1000:1动态范围的电流RMS测量精度为0.1%,电源电压3.3V.本文介绍了CS5480主要特性,方框图, 单相三线和两线连接框图, 并联传感器, 电流变压器和Rogowski线圈电表连接图, 以及CDB5480U评估板主要特性,框图,电路图,材料清单和PCB布局图.

The CS5480 incorporates independent, 4th order, Delta-Sigma analog-to-digital converters for every channel, reference circuitry, and the proven EXL signal processing core to provide active, reactive, and apparent energy measurement. In addition, RMS and power factor calculations are available.

Calculations are output via configurable energy pulse, or direct UART/SPI™ serial access to on-chip registers.

Instantaneous current, voltage, and power measurements are also available over the serial port. Multiple serial options are offered to allow customer flexibility. The SPI provides higher speed, and the 2-wire UART minimizes the cost of isolation where required.
..

查看全文