VCM, the common-mode voltage between the sensor and the signal ground, results from nearby noise sources resulting from stray capacitive coupling. 传感器和信号地之间的共模电压VCM来自周围杂散电容耦合带来的噪声源。
This type of interference is induced equally into both differential inputs, and therefore appears as a common-mode signal. 这种类型的干扰一并来到两个差分输入端,因而出现一个共模信号。
This paper introduces a improved method of common-mode current choke, along with the application and realization of video signal transfer with the common-mode current choke. 本文阐述了一种对共模扼流圈的的改进方法,及其在视频信号传输中的应用与实现。
After common-mode transformer transform the common-mode current of main circuit to voltage signal, analog-digital conversion and common-mode signal sampling can be carried out. 欲采集共模电流信号,首先需要设计共模变压器,将主电路输入端的共模电流通过耦合,转化为电压信号,才能进行模数转换和共模信号采样。
At the same time, four channels signal system has favorable symmetry capability. The source of common-mode noise has been controlled. The capability of anti-jamming and stability is improved. ( 2) Pretreatment of four channels signal system is advanced for single frequency laser interferometer system. 同时,四路信号系统具有良好的对称性,可以有效抑制共模噪声的产生,提升单频激光干涉系统的抗干扰能力和系统的稳定性。