Currently, electric vehicles are divided into plug-in hybrid electric vehicles (PHEVs) and battery electric vehicles (BEVs). Charging piles are used to charge electric vehicles from the AC grid when parked. Higher driving range can be achieved by improving battery capacity and energy efficiency of electronic components. The trend of fast charging has also influenced the development of charging piles. The new trend is 30KW or even up to 40KW design. Such developments, coupled with the need for high efficiency and high power density with low system costs, have strongly driven the use of three-phase solutions. Today, car chargers typically flow in one direction, from the grid to the battery, but they can also be used in both directions.

The fourth and fifth generation SJ MOS developed by Eco Micro for applications such as charging pile and high-power power supply adopt advanced multi-layer epitaxial technology to optimize the cellular structure and have the characteristics of strong current ability and good short-circuit ability. Specially optimized transition zone and terminal design give the device good avalanche characteristics, diode reverse recovery characteristics, dv/dt capability. In addition, Ecko Micro introduced a new material SiC diode device, with small on-off loss, small switching loss, anti-lightning surge ability and other characteristics. In application, it can satisfy the performance requirements of high efficiency and high power observation of charging pile.