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primary coil 初級線圈,原線圈。

primary colours

The second , at the high frequency primary coil , when switch turn on with control signal ( the spwm pulse is modulated ) , in the positive or negative semi - period of low frequency modulation signal , transformer coil with same direction voltage . the magnetic flux of transformer core will increase step by step . at the end , it leads to magnetic flux saturation 二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由于很大的磁化電流而無法正常工作。

This testing system is designed according to the germany standard , to test many dynamic parameters in the moment of ignition time . such as the primary coil current , secondary coil current , high voltage and time signal 本文研制的測試系統依照德國標準進行設計,實現對點火瞬間產生的初級與次級線圈電流、電壓及時間等動態參數的測試。