The new energy vehicle on-board charging equipment PCB is a built-in "energy replenishment core" for electric vehicles, designed to convert AC grid power into DC for battery charging. It withstands vehicle-mounted environments such as vibrations, temperature extremes, and voltage fluctuations, integrating high-efficiency rectifier circuits, power factor correction modules, and safety protection mechanisms. Supporting multiple charging standards, it adjusts charging power and current according to battery status, ensuring fast, safe, and efficient charging. Compatible with pure electric and hybrid vehicles, it enables convenient charging at home or public AC charging stations, with reliable performance and compact design.