ac vs dc ev charging_Hongjiali New Energy

ac vs dc ev charging

ac vs dc ev charging are what we often call slow charging and fast charging.

1. AC ev charging, commonly known as "slow charging". The AC charger is a power supply device that is fixed outside the electric vehicle and connected to the AC power grid to provide AC power for the on-board charger. The AC charger only provides power output and has no charging function. It needs to be connected to a car charger to charge the electric vehicle, and its function is to control the power supply.

The AC charger outputs single-phase/three-phase alternating current and converts it into direct current through the vehicle charger to charge the vehicle battery. The power is generally small (such as 7kW, 22kW, etc.) and the charging speed is slow. It is generally installed in residential parking lots and other places.

AC ev charging

2. DC ev charging, commonly known as "fast charging", the DC charger is a power supply device that is fixed outside the electric vehicle and connected to the AC power grid to provide DC power for the off-board electric vehicle power battery. The input voltage of the DC charger adopts three-phase four-wire AC380V±15%, frequency 50Hz, and the output is adjustable DC. It can directly charge the power battery of electric vehicles and can provide sufficient power. The output voltage and current have a wide adjustment range and can Meet fast charging requirements.

DC chargers (or non-vehicle chargers) directly output DC power to charge the vehicle battery. They have large power (such as 60kW, 120kW or higher) and fast charging speed. They are generally installed at charging stations next to highways.

DC ev charging