Introduction to Solid State Transformers

Solid State Transformers (SSTs), also known as power electronic transformers, represent a fundamental shift in how electrical power is converted and distributed.

How SSTs Work

A typical SST consists of three main stages: input rectifier, high-frequency DC-DC converter with galvanic isolation, and output inverter.

The Role of SiC Semiconductors

Silicon carbide (SiC) MOSFETs are the enabling technology for modern SSTs, offering 10x higher breakdown field and 3x higher thermal conductivity than silicon.

Benefits for Data Centers

  • 40-60% space savings
  • Direct 800V DC output
  • Enhanced power quality
  • Grid support features

Conclusion

SSTs offer higher efficiency, smaller footprint, and direct DC output — making them ideal for 800V HVDC AI data centers.