An Electric Vehicle Supply Equipment includes a plurality of first power modules and a control circuit. The first power modules are electrically coupled in series at output and configured to provide a charging current and a charging voltage to charge an Electric Vehicle. The control circuit is configured to output a first current control signal to control one of the first power modules to be operated in a constant current mode and output first voltage control signals to control the other first power modules to be operated in a constant voltage mode respectively. The control circuit controls the charging current via the first power module operated in the constant current mode, and controls the first power modules operated in the constant voltage mode have the output voltages corresponding to their first voltage control signals respectively.