Profit well casing anticorrosion appearance pulsewidth modulation direct current system

The utility model provides a profit well casing anticorrosion appearance pulsewidth modulation direct current system, including electromagnetism filtering circuit, charge into current control circuit, rectification PFC return circuit no. 1, switching circuit, transformer, rectification PFC return circuit no. 2, PWM control circuit, detection circuitry and PFC control circuit. The utility model discloses replace traditional silicon rectification power supply power supply with pulsewidth modulation direct current system, consumed energy own is little, and operating efficiency is up to more than 85%, and spark safety is not emitted in non -carbonate pressure regulating, will original more than the 600 kilograms indoor anticorrosion appearance that heavily need the professional equipment transport, change into more than 90 a kilogram of outdoor anticorrosion appearance, light in weight, not needing to join in marriage specially electrical room, to drop into the expense few, the installation method is simple, the