harger. The three-phase ac input undergoes PFC to produce an acceptable power factor. That ac then goes to an ac-dc converter to generate the high voltage (HV) that charges the HV battery directly. Output voltage is in the 300- to 800-V range. A separate low-voltage supply powers the remaining circuitry, including the MCU and COMMS.
5. An EVSE Level 3 HV dc charger is used for faster charging.
All of these chargers are controlled by an MCU, and the power-conversion circuits are of the switch-mode variety to ensure maximum efficiency.