二线制4～20mA仪表的电源设计  

Design of Two-wire 4 to 20mA Meter Power Supply

作　　者：王利军[1] 田亮[1] 邓拓宇[1] 

机构地区：[1]华北电力大学控制与计算机工程学院,河北保定071003

出　　处：《电力科学与工程》2010年第5期47-50,共4页Electric Power Science and Engineering

摘　　要：针对当今以微控制器为核心的智能型二线制仪表高功耗的特点，以简单高效为理念设计了该4—20mA二线制仪表的电源部分。并给出了整体的设计方案，详细分析了硬件电路各功能模块和设计思想。其设计具有良好的工程应用参考价值。Taking the concept of simple and efficient as the core, a power supply part based on 4 ~ 20 mA twowire instruments is designed for the characteristics of high power consumption of today two-wire intelligents with microcontroller as the core. The structure of the design and the hardware of each functional module and the design idea was introduced in detail. At the same time the design has a good reference for engineering applications.

关 键 词：二线制 4~20 MA 高效 电源 

分 类 号：TM722[电气工程—电力系统及自动化] TH703[机械工程—仪器科学与技术]