DAM 10 kW中波发射机缓冲放大器的工作原理以及实例分析  

DAM 10 kW Medium Wave Transmitter Buffer Amplifier Working Principle and Case Analysis

作　　者：袁颖 彭志平 YUAN Ying;PENG Zhiping(Ji'an 802 sets,Ji'an 343000,China;Ji'an 841 Sets,Ji'an 343000,China)

机构地区：[1]江西吉安八零二台,江西吉安343000 [2]江西吉安八四一台,江西吉安343000

出　　处：《电声技术》2023年第10期122-124,共3页Audio Engineering

摘　　要：在数字调幅(Digital Amplitude Modulation,DAM)中波发射机中,缓冲放大器具有承上启下的作用。它能将激励器输入的4.5 V左右的方波信号转换成30 V左右的正弦波信号,推动多个功放管工作。文章主要阐述DAM中波发射机缓冲放大器的工作原理,通过实例分析,为从事广播电视专业的工作人员解决问题提供一定借鉴。In Digital Amplitude Modulation(DAM)medium wave transmitters,the buffer amplifier plays a bridging role.It can convert the square wave signal of about 4.5V input by the exciter into a sine wave signal of about 30 V,driving multiple power amplifiers to work.This article mainly elaborates on the working principle of DAM medium wave transmitter buffer amplifier,and through example analysis,provides certain reference for professionals in broadcasting and television to solve problems.

关 键 词：缓冲放大器 数字调幅(DAM)中波发射机 实例分析 工作原理 

分 类 号：TN838[电子电信—信息与通信工程]