450V820UF电子元件 全新螺丝脚电解电容器 450VDC YADACON 雅达康

The function of transformer is to convert a high voltage of 308 v to a low voltage of tens of volts suitable for arc welding. The function of the fast recovery diode d5d6 is secondary rectifier, that is, the high frequency AC current of 100khz is converted to DC current again. The DC output of 30 v after rectifying is pulsating DC, the capacitor has a filter action of 6, and the r-discharge resistance has a very high voltage in the filter capacitance after the machine is turned off. In order to be safe, the stored power is discharged with this resistance. 7, c2- high frequency filter capacitance