EV Charging - AC vs. DC, single phase vs. three phase and power vs. voltage and amps.
The diagram below can be used to estimate power vs. amps and voltage when charging electrical vehicles with DC or single/three phase AC current.
Typical Charging Stations for Electrical Vehicles
Power vs. voltage and current for typical charging stations are indicated in the diagram below:
Example - Small Charging Station
From the diagram above - a small single phase AC 230V 16 amps charging station can deliver max 3.7 kW.
Example - Fast Charger
Current battery systems for electric cars typically use voltage levels between 200 and 800 V.
From the diagram above - a DC 400 V 125 amps fast charger can deliver max 50 kW.
Electric Power Nomogram
The nomogram below can be used to estimate power vs. voltage and ampere.