使用电流互感器的78M661x

摘要：本应用笔记介绍了如何使用电流互感器（CT ）与Teridian公司的78M661x测量系统中的能量测量IC的家庭。讨论以下主题：电流互感器的背景;负担电阻的选择;相位误差和补偿;选择电流互感器;系统校准和测量结果。一个设计实例包括逐项设计过程。校准考虑和性能测试数据如下。

Using Current Transformers
with the 78M661x
A Maxim Integrated Products Brand

APPLICATION NOTE

AN_661x_021 April 2010

Introduction
This application note describes using current transformers (CT) with the Teridian 78M661x family in a
measurement system. The following topics are discussed:

Current Transformer Background
Burden Resistor Selection
Phase Error and Compensation
Selecting a Current Transformer
System Calibration
Measurement Results

A design