Technical FAQs 4

What are the different types of EV charging stations?

Depending on the power level, both single-phase as well as three-phase topologies are used in EV charging stations. Single-phase topologies are typically used for power levels less than 3.3 kW and three-phase topologies are used at much higher power levels.

What is a DC charging station?

The DC charging station is a Level 3 charger which can cater for very high power level in the range of 120 to 240 kW. The L3 chargers typically charge batteries to 80% State of Charge (SOC) in under 30 minutes. To achieve such high power levels modular converters which can be stacked are used.

What is a DC/DC stage in an EV charging station?

The DC/DC stage is the second level of power conversion in an EV charging station. It converts the incoming DC link voltage of 800 V (in case of three-phase systems) to a lower DC voltage to charge the battery of an electric vehicle.

What is a PHEV charging station?

A charging station is part of the grid infrastructure installed along a street, parking lot or in a home garage; its primary purpose is to supply the power to the PHEV for charging the battery. There are mainly two types of charging systems, as shown in Table 1-1: AC and DC charging systems.

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