EV charging
Power conversion at the charging edge.
EV chargers are a useful case study because efficiency, heat, power density, grid quality and cost all compete at once.
Where SJ can matter
- AC-DC PFC front ends.
- High-frequency isolated conversion stages.
- Auxiliary power supplies and gate-drive power.
- Higher-power DC conversion where silicon remains economically attractive.
What engineers should check
- Bus voltage and surge environment.
- Switching frequency and hard/soft switching.
- RDS(on) at actual junction temperature.
- Eoss, Qg, Qgd and diode recovery.
- Thermal interface and cooling architecture.
Industry reference
Commercial relevance is already visible.
Infineon explicitly positions its 650 V CoolMOS 8 SJ family for EV charging alongside server, telecom and photovoltaic applications.
Source: Infineon 650 V CoolMOS 8 ↗