video frequency amplifier

基本解释

Purpose: General amplifier and video frequency output in small screen TV.
用途：用于普通放大及小屏幕电视机视放电路。
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An intermediate frequency(IF) variable gain amplifier(VGA) for DVB-C(Digital video broadcasting-cable) standard is presented in the paper.
设计了一种适于DVB-C标准的中频可变增益放大器。
Also the designing process of pulse modulator, intermediate frequency amplifier, video frequency amplifier and analog filter is introduced in the dissertation.
并根据研制过程重点介绍了脉冲调制器、中频放大器、视频放大器、滤波器等几个关键系统部件的设计及研制情况。

视频放大器
The testing and transforming device includes these parts:power supply,stimulus pulse supplying circuit,stimulus pulse amplifier circuit,former amplifier circuit,high frequency and broad band amplifier circuit,demodulation and video frequency amplifier citcuit,attenuator part.
测试转换装置包括电源电路、激励脉冲产生电路、激励脉冲放大电路、前置放大器电路、高频宽带放大器电路、检波及视频放大器电路、衰减器组件等的设计。
电子、通信与自动控制技术
视频放大器