An Overview about Si, Superjunction, SiC and GaN Power MOSFET Technologies in Power Electronics Applications

This work presents a comparative analysis among four power MOSFET technologies: conventional Silicon (Si), Superjunction (SJ), Silicon Carbide (SiC) and Gallium Nitride (GaN), indicating the voltage, current and frequency ranges of the best performance for each technology. For this, a database with 91 power MOSFETs from different manufacturers was built. MOSFET losses are related to individual characteristics of the technology: drain-source on-state resistance, input capacitance, Miller capacitance and internal gate resistance. The total losses are evaluated considering a drain-source voltage of 400 V, power levels from 1 kW to 16 kW (1 A-40 A) and frequencies from 1 kHz to 500 kHz. A methodology for selecting power MOSFETs in power electronics applications is also presented.

Automated summary

This study presents a comparative analysis of four power MOSFET technologies and identifies the optimal performance in terms of voltage, current, and frequency ranges for each technology. A database of power MOSFETs from various manufacturers was created. The study also introduces a methodology for selecting power MOSFETs in power electronics applications.