11
Littelfuse OBC Power
Contrul and Protection
Solution
2
Confidential and Proprietary | Littelfuse, Inc. © 2020
2
On-Board vs. Off-Board Charger
On-Board Charger
Off-Board Charger
~20kW
~3,3kW
~6.6kW
~2kW
~100kW
▪ Battery charge is managed by BMS
▪ Low power transfer
▪ Less concern on Battery thermal management
▪ Adds weight to vehicle
▪ Slow charge
▪ High power transfer
▪ More complex BMS to ensure battery thermal
management
▪ Removes weight from vehicle
▪ Fast charge
Power
+
AC/AC
Charging cable
AC/DC
Converter
AC/DC
Charging Station
IC-CPD mode