The SZCD-Z port DC charging pile module adopts advanced rectification technology and soft switching technology, which has the characteristics of voltage regulation, high current regulation accuracy, small ripple coefficient, high reliability, and excellent process. Pure software current sharing can realize autonomous current sharing between modules. It is mainly suitable for charging lithium-ion batteries, lead-acid batteries, and nickel-hydrogen batteries. It has the advantages of high reliability, high efficiency, high power density, low electromagnetic interference, and small size.