The 20KW on-board charger has the function of converting single-phase/three-phase AC into high-voltage DC to charge the on-board power battery. The product meets the AC charging requirements of GBT18487.1 and can be applied in the field of electric trucks, light trucks, and electric construction machinery vehicles, etc. The product adopts advanced fully digital control technology, with functions such as intelligent charging, active protection, automatic wake-up, pile recognition, fault uploading, etc.