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type1 type2 GB/T EV charging plugs difference

EV Charging plug interface standards are roughly divided into 3 categories: one is the American standard, the other is the European standard and GB/T . According to the charging technology, they are divided into direct current charging (DC) standard and alternating current charging (AC) standard. DC plugs are high-current, high-power charging EV connectors . They are generally equipped in fast-charging stations for new energy vehicles. They have high voltage and fast charging speed. AC charging plugs are used for home or portable charging ,which charging speed is relatively slow. 1. AC charger There are three main types, type1, type2 and GB/T, which can also be called American standard, European standard and China national standard. Of course, Tesla has its own standard charging connectors , but due to pressure, Tesla also began to change its standards according to market conditions to make its cars more suitable for the market. ...

The difference between constant current charging and constant voltage current limiting charging

The difference between constant current charging and constant voltage current limiting charging 1. The principle of constant voltage and current limiting charging and the current calculation method Constant voltage and current limited charging is a way of charging by regulating the voltage and limiting the charging current. When the battery voltage is insufficient, the charger charges with constant current to achieve a fast charging effect; when the battery voltage reaches the set value, the charger automatically adjusts to constant voltage to keep the battery voltage from exceeding the set value. At this time, the charger will limit the charging current to avoid overcharging. Therefore, constant voltage and current-limiting chargers need a calculation formula to calculate the relationship between the charger input voltage and the required output current. Calculated as follows: Charging current I = rated output current of the charger * rated capacity of the battery / remaining cap...

How does the AC EV chargers work?

How does the AC EV chargers work? AC charging means that on-board charger(OBC) converts the alternating current into direct current to charge the power battery to complete basic AC charging. The components of AC charging mainly include power supply equipment, such as Portable EV charger or AC charging station, OBC, slow charging EV connetors, high-voltage control box, power battery, VCU, BMS, high-voltage wires, low-voltage wires, etc. 1. On-board charger: converts alternating current into direct current according to control instructions to charge the battery. 2.AC charging connectors: divided into type1, type2, GBT EV connectors 3.VCU: Monitors the status of the vehicle and issues control instructions to the on-board charger to make it work or stop working, control its operating current and voltage, etc. It is the control brain of vehicle charging. Mode 2 charging : It is a charging cable with control box that connects the external power grid and the vehicle, and directly provides AC ...

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