中波发射机LC谐振放大电路研究与仿真  

Research and simulation of the LC resonance amplifier circuit in AM transmitter

作　　者：刘必洋 

机构地区：[1]盐城市广播电视台,江苏盐城224005

出　　处：《电声技术》2016年第1期37-40,共4页Audio Engineering

摘　　要：主要针对造成PDM发射机调制推动电流过大的可能原因进行了探讨。采用了Multisim软件,对PDM发射机的调谐回路进行了建模、并对相关问题进行了仿真模拟和分析。研究发现,当调谐回路中L2,C2并联,并且当不在工作频率处谐振时,就会引起调制推动电流变大的现象。The possible reasons are mainly discussed, which cause large driving current of PDM transmitter.Using Muhisim software ,the tuning circuit for PDM transmitter are modeled, and the simulation and analysis of relevant problems are carried out.h is found when L2 and C2 of the tuning loop is in parallel connection, and occur resonance which not at the work frequency, would cause the modulation driving current enlarging

关 键 词：功放 发射机 调谐回路 谐振 

分 类 号：O453[理学—无线电物理]