← 返回 JSSC 论文列表JSSC 2019第12期Other0.18 µ CMOS
An Energy Measurement Frontend With Integrated Adaptive Background Accuracy Moni
提出一种集成自适应背景精度监测的交流能量测量前端，用于不间断监测系统精度。
0.18 µ CMOS, 0.1% RMS电流精度, 0.25%有功能量精度
能量测量自适应监测精度监测动态范围数字信号处理
▸创新点1：集成自适应背景精度监测系统（ABAM），通过数字信号处理在后台注入已知信号并提取，实现不间断的精度监测，确保系统准确性。
▸创新点2：独立监测电流和电压通道，采用高稳定性的数字控制技术，确保各通道的绝对精度达到0.1%。
▸创新点3：高精度动态范围测量，在1000:1的动态范围内实现0.1%的RMS电流测量精度，在5000:1的动态范围内实现0.25%的有功能量测量精度。
▸创新点4：系统创新，结合ABAM系统，能够在干扰和现场试验中跟踪全表的相对精度至0.1%，提升整体系统的可靠性和稳定性。
Abstract
This article presents an ac energy measurement
frontend on 0.18 µ CMOS with integrated, condition-based
monitoring capability that can continuously monitor and report
on the accuracy of the full measurement system, including the
external current and voltage sensors, without interruption of
the measurement used for billing. This is achieved using a
highly stable, digitally controlled, adaptive background accuracy
monitoring (ABAM) system, which injects a small, known signal
into the sensors and e