基于LM331的隔离传输模块设计  

Design of isolated transmission module based on LM331

作　　者：王瑛[1] 舒丹丹[1] WANG Ying;SHU Dan-dan(Department of Information Engineering,Chaoyang Teachers College,Chaoyang Liaoning 122000)

机构地区：[1]朝阳师范高等专科学校信息工程系,辽宁朝阳122000

出　　处：《辽宁师专学报（自然科学版）》2018年第4期83-86,共4页Journal of Liaoning Normal College(Natural Science Edition)

摘　　要：隔离传输模块广泛应用于环境比较复杂的场合,用于传输控制信号或探测信号.设计一种以频率电压转换器件LM331为核心的简单电路,该电路采用光电隔离,具有电路简洁、隔离性强、线性度好、功耗低、调试简单等特点,克服了单一采用光电耦合器的非线性弊端.Isolated transmission module is widely used in more complex environments to transmit control or detection signals.A simple circuit based on frequency-voltage converter LM331 is designed.Adopting photoelectric isolation,this circuit has the advantages of simplicity,strong isolation,good linearity,low power consumption and simple debugging,which overcomes the non-linear drawback of single photocoupler.

关 键 词：LM331 隔离传输 光耦 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]