通过简单分析该主电路的结构形式和工作原理，证明它是一种对电网污染少、整流输出电压特性好的焊接电源主电路形式。
By analyzing its structure and working principle, it proves that the new circuit has little pollution to the network and has well characteristic of the output voltage.
可靠绝缘的要求板与电源部分污染等级为2。
Requirement for reliable isolation degree of pollution 2 for boards and power section.
设计一种用于网电源上，既能串联使用，又能并联使用的对电网污染具有一定治理作用，又可起到节电效果的多极点电源波形矫正滤波器。
The paper described a multi-pole waveform absorbing filter used in the grid for series or parallel connection, to control the grid pollution to a certain extent and save the power consumption.
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