The utility model discloses an automatic gain control device for power line carrier communication, which comprises a high frequency amplifier (1), in the high frequency amplifier (1) is connected with the inverter inverter (2), (2) are connected with three intermediate frequency amplifier (3), in the intermediate frequency amplifier level third (3 connected) filter (4), (4) is connected in the filter detector (5), the detector (5) is connected with a AGC amplifier (6), AGC (6) are respectively connected with the amplifier amplifier first stage (3) and second (3) of the intermediate frequency amplifier is connected. The utility model uses the automatic gain control device of power line carrier communication, the power line carrier communication automatic control system, automatic tracking signal gain, so as to improve to reduce the impact of noise on the power line carrier communication system receiver sensitivity.
【技术实现步骤摘要】
【技术保护点】
1.一种用于电力线载波通信的自动增益控制装置,其特征在于:它包括高频放大器(1),在高频放大器(1)上连接有变频器(2),变频器(2)上依次连接有三级中频放大器(3),在第三级的中频放大器(3)上连接滤波器(4),在滤波器(4)上连接检波器(5),在检波器(5)上连接有AGC放大器(6),AGC放大器(6)分别与第一级的中频放大器(3)和第二级的中频放大器(3)连接。
【技术特征摘要】
【专利技术属性】
技术研发人员:张大虎,乔雁,陈羽,
申请(专利权)人:中国振华电子集团百智科技有限公司,
类型:实用新型
国别省市:52
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