电力线MODEM芯片ST7538及其接口电路的设计  

Carrier Modem Chip ST7538 and the Design of Its Interface Circuit

作　　者：刘秋霞[1] 徐兴磊[1] 

机构地区：[1]菏泽学院物理系

出　　处：《电子技术（上海）》2008年第7期41-43,共3页Electronic Technology

基　　金：菏泽学院自然科学基金资助课题(NO.XY07WL01);山东省高等学校实验技术基金资助课题(NO.S04W138)

摘　　要：利用电力线载波通信是用电管理和配电自动化中一种最有效、最经济、最简便的数据传输方式。在实验和应用电力线载波集成芯片ST7538的基础上,对该芯片的功能、特点及工作原理进行了较全面的介绍;然后根据其特点、工作原理设计了一种接口电路。通过长期测试与现场应用,证明了该芯片具有性能优良、功能强大、使用方便等特点,其接口电路既能高效率地传输载波信号,又能完全地隔离50Hz/60Hz的工频信号,具有进一步推广应用的价值。Power line carrier is the most efficient,economic and convenient data transmission technology used in power consumption and distribution automatic system.On the basis of the experiment and the application of the new electric carrier modem chip ST7538,this paper fully expounds its function,characteristics and operation process,then this paper introduces the design of the interface circuit based the modem ST7538.The measurement and application results show ST7538 has good performance and powerful function,its peripheral circuits are simple,the interface circuit not only has higher efficiency of transmitting carrier signals but also can completely close off 50nz/6OHz signal from LVPL,the chip and its interface circuit are worth spreading.

关 键 词：电力线载波 ST7538 FSK调制 接口电路 

分 类 号：TN492[电子电信—微电子学与固体电子学]