基于低压电力线通信的信号耦合电路设计  

Design of Coupling Circuit for Communications in Low-voltage Power Line

作　　者：蔡红娟[1] 贺良华[1] 

机构地区：[1]中国地质大学机电学院,湖北武汉430074

出　　处：《电力科学与工程》2007年第1期49-51,共3页Electric Power Science and Engineering

基　　金：湖北省自然科学基金资助项目(2003ABA044)

摘　　要：通过对低压电力网的结构及其传输特性进行分析,从频带要求、工作衰减要求以及高频阻抗特性分析三方面入手,研究了基于低压电力网的高频载波信号耦合技术。设计了适合低压电力线载波通信系统的宽带耦合电路,为高频信号的高速传输提供了具有良好的阻抗特性和较小的工作衰减的接口电路,并有效地抑制了电路瞬时现象。Based on the analysis of structure and transmission characteristics of the low-voltage power line, the high frequency carrier signal coupling technology based on low-voltage power line is studied, including the analysis of the bandwidth requirements, work attenuation requirements and HF impedance characteristics. The design of broadband coupling for low-voltage power line communications systems is described. In this application, good impedance performance is provided and work attenuation is reduced for high frequency carrier with high speed. The high level of protection against transient problem is provided.

关 键 词：低压电力线 高频载波 宽带耦合 

分 类 号：TN751.1[电子电信—电路与系统] TN915.853