本文介绍线路设计中所应用的两种程控信号衰减电路。
Two kinds of program control signal attenuation circuits, which are used in circuit design, are introduced.
此电路不但可产生模拟反极性信号，而且可抑制语音干扰和线路噪声，有效地解决了实时计费与管理问题。
This circuit can not only produce analogous polarity reversing signal, but also suppress disturbance and circuit noice, thus solving the problem of real time charging and administrating effectively.
针对树形配电线路特点，选取适当频率的正弦诊断信号，建立分布参数电路模型。
A distributed parameter circuit model is constructed according to characteristics of the radial distribution network and selection of appropriate frequency detection signal.
一种在线路上辅助信号跃迁的电路及其方法。
A circuit for assisting signal transitions on a wire, and a method thereof are provided.
一种用于在线路上辅助信号跃迁的电路及其方法。
A circuit for assisting signal transitions on a wire, and a method thereof.
一种用于在线路上辅助信号跃迁的电路及其方法。
A circuit for assisting signal transitions on a wire, and a method thereof.
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