低频电流 meaning in English
lfc
low frequency current
Examples
- Something , such as a protective shield for a machine , that resembles this garment in appearance or function
在电子学领域，一种不希望发生的低频电流，它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。 - In electronics , undesirable low frequency currents interfering with a desired signal , and usually caused by a poorly screened alternating mains supply
在电子学领域，一种不希望发生的低频电流，它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。 - The variable polarity power supply circuit uses two stages full - bridge inverter , the former inverter is regarded as a constant - current source with fast dynamic response , and supplys energy for the second one , and the latter one is to produce variable polarity current excellently , and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding . a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply , which is used to compress the arc and improve process of crystallization
其中变极性电源采用二次全桥逆变结构,一次逆变提供快速的响应速率并给二次逆变提供能量,二次逆变提供良好的变极性性能,使输出能量最优化,并用其低频电流特性减小电弧线能量,控制焊缝成形;高频脉冲电源提供的高频电流叠加在反极性电流dcen上,利用电流的高频特性压缩电弧,改善焊缝金属结晶过程。