Littelfuse Electrical Vehicle DC Fast Chargers

DC charging stations are designed to convert the electrical grid’s AC power into DC power that can then be fed directly into a vehicle’s battery system for fast charging – in 30 minutes or less. Because the conversion from AC to DC power is being done in the charging station, these units can provide higher levels of power (50kW to 350kW and beyond) to the vehicle compared to AC charging stations. Working with tens to hundreds of kilowatts of power, efficient conversion, reliability of the system, and user safety are critical.

DC Level Cabinet Level Protection

Littelfuse Electrical Vehicle DC Fast Chargers

I) Fuse x 3: PSR
II) Ground-fault relay: SE-704, SE-CS30
III) AC contactor: HCD
V) Fuseholder: LPSM; Fuse: LVSP
VI) Surge protection device: SPD Type 2
VII) DC contactor relay: DCNxx
VIII) Fuse x 2: SPFJ / PSR

DC Charger Sub-Unit Power Converter (Vienna Rectifier)

Littelfuse Electrical Vehicle DC Fast Chargers

I) Fuse: 606, 505
II) MOV (secondary protection): TMOV, UltraMOV; GDT (secondary protection): CG2, CG3; SIDACtor® + MOV (secondary protection): PxOFNL+ UltraMOV
III) Diode: DSEPxx
IV) MOSFET: X-Class, X2-Class
V) Gate driver: IXD 6xx
VI) Diode: DSEPxx
VII) Diode: DSEPxx
VIII) Diode: DLAxx, DSIxx
IX) Fuse: SPF

DC Charger Sub-Unit Power Converter (Bidirectional)

Littelfuse Electrical Vehicle DC Fast Chargers

I) Fuse: 606505
II) MOV: MOV
III) Fuse: SPF
IV) Discrete thyristor: SCRs
V) SiC MOSFET: LSIC; Discrete IGBT: SMPDs
VI) Discrete MOSFET: IXTA 1200V T0-263

Publicado: 2018-12-04 | Actualizado: 2023-03-14