基于载波原理的隔离放大器的设计  

Design of isolation amplifier based on the theory of carrier wave

作　　者：陈馨[1] 张聪[1] 黄志斌[1] 

机构地区：[1]中国船舶重工集团公司第七一二研究所,武汉430064

出　　处：《电子测量技术》2009年第2期43-45,共3页Electronic Measurement Technology

摘　　要：隔离放大器是一种输入电路和输出电路之间电气隔离的放大器,一般采用变压器或光耦合传递信号,它主要应用在工业控制、信号测量、医学和核工业等领域。对变压器耦合隔离放大器的工作原理、使用和调试方法等方面进行了研究,研制的隔离放大器模块初样经测试,基本满足初始设计要求。与其他同类放大器比较,具有结构简单、成本低的优点。Isolation amplifier has the function of electric isolation between input circuit and output circuit. It usually uses transformer or light coupling to transfer signal. It is mainly applied to industry controlling, signal measureing,medical science and nuclear industry etc. It is to do research for the kind of transformer coupling isolation amplifier containing principle, usage,adjusting method. Comparing with the same kind of other amplifiers, it is exceedingly good at simple structure and low cost.

关 键 词：隔离放大器 变压器耦合 调制 解调 

分 类 号：TN722[电子电信—电路与系统]