6.0kV, 100A, 175kHz super cascode power module for medium voltage, high power applications

A new 6.0kV/100A Super Cascode Power Module (SCPM) topology is proposed using dual serial strings of six SiC-JFETs with a common balancing circuit, and extendable to 8.0kV/200A for high-frequency, medium-voltage applications. Electrical and multi-physics simulations show improvements in dynamic response, and improved electro-thermal performance that exceed state-of-the-art Si-IGBT power module technology. The SCPM is fabricated and tested. Results are reported showing 47.8mΩ dynamic response, and ≤50ns rise and fall in current at 4kV for 110A switching from double-pulse testing (DPT).