The ETO schematic and a 22kV SiC ETO prototype picture

22kV SiC Emitter-Turn-off ETO: Ultra-High Voltage Power Switch

– Ultra-high (22-kV) blocking voltage

– Very low forward voltage drop at different temperatures

– Very low forward voltage drop at different temperatures

– Voltage controlled ON/OFF switching

– High current (424 A/cm2) turn-OFF capability and large reverse biased safe operation area (RBSOA)

A picture of the 15kV SiC Super-Cascode switch

15kV SiC Super-Cascode Switch: A Cost-Effective Selection

– Good voltage balancing

– Single gate terminal control

– Blocking voltage configurable

– Better heat dissipation

– Slightly slower switching speed

A 1.2kV 150A Si IGBT and SiC MOSFET hybride switch prototype picture

Si/SiC Hybrid Switch: Combine the Best of Both Worlds

– 30%~40% less cost vs. SiC

– 40% lower switching loss vs. IGBT

– Lower conduction resistance

– Simple gate control circuit

The digram of solid state circuit breaker with key consisting components

Solid-State Circuit Breakers: Faster, Safer and Smarter

– Hundreds of times faster than mechanical breakers

– Reduced fault-stress on system

– Reduced let through energy

– Arc-less, noise-less switching

– Vital for DC system protecion