Electric vehicle (EV) on-board chargers (OBCs) can take several forms based on power level and functions. Charging powers vary from less than 2 kW in applications such as electric scooters to 22 kW in high-end EVs. Traditionally, charging power is unidirectional. Bi-directional charging is gaining traction in the recent years. This paper will focus on bidirectional OBCs and discuss the advantages of Silicon Carbide (SiC) in both medium-power (6.6 kW) and high-power (11-22 kW) OBCs.
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