DC charging post power module converts the three-phase alternating current into direct current voltage 380V to 750V, is fixedly mounted outside the electric vehicle is connected to the AC power grid, providing power supply means is a DC power supply battery of electric vehicle; foreline usually a three-phase the PFC circuit, typically after the modules stage DC\DC LLC three-level power adjustment circuit, the entire power module contains PFC inductor, resonant inductor, EMI filter inductors and transformers.
1. High-frequency charging post transformer
In contrast to conventional transformers, the described charging post transformer spatial frequency higher efficiency, low loss ferrite core material EE65 PC95 structure, to achieve high power, flux density of the small object; multi-stranded wire package copper wire and the copper foil membrane package is divided into primary and secondary winding, multiple strands of the main characteristics of the film envelope better insulating, thin copper wires and by twisting the number of different roots is made to solve the problem of skin effect through the stream; since EE65 size structure problem, a smaller thickness, the larger the width of the copper foil, also meet better flow problems and a smaller current density, and to ensure efficient cooling of the product is good.
  
2. The charging resonant inductor pile
The main features of the charging post resonant inductor, low loss ferrite core material PC95 sheet-like material, the core itself becomes stacked cylinders, the air gap between each sheet using the segment, each segment in the gap size 0.17mm hereinafter, functions as a magnetic field when cutting the working range becomes small, thus effectively reducing iron loss of the product; windings membrane package stranded copper wire, a good insulating effect, and by twisting strands of fine copper wires, copper solution compared to traditional low resonant inductor, the resonant inductor charging pole losses, higher efficiency, good flow capacity, strong ability of anti-DC superposition; loss problems.
  
3. PFC inductor
PFC inductor using better anti-offset ability of the silicon DC / sendust as the main body can be stably kept at a certain value of inductance in the current work, effectively eliminate the fine noise, have very good power core metal alloy powder factor correction effect, the main feature is a strong anti-offset ability of DC, the high space utilization, is one of the important devices are currently charging post items indispensable.
  
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