Power Semiconductors

Multi-Stage DC-AC Converter Based on new DC-DC converter for energy conversion

This paper proposes a multi-stage power generation system suitable for renewable energy sources, which is composed of a DC-DC power converter and a three-phase inverter. The DC-DC power converter is a boost converter to convert the output voltage of the DC source into two voltage sources. The DC-DC converter has two switches operates like a continuous conduction mode. The input current of DC-DC...

Extremely Low-power Ai Hardware Enabled by Crystalline Oxide Semiconductors

“J-Series” IPM and T-PM for EV and HEV Applications

1. Introduction There is a growing demand for power semiconductors applied to motor drive inverters for electric vehicles (EVs) and hybrid electric vehicles (HEVs). Based on the results of the development and mass production of automotive power semiconductors, which require very high reliability and functionality, Mitsubishi Electric has developed the J-Series Intelligent Power Modules (IPMs) a...

Wide Bandgap Semiconductors for Utility Applications

Recent development advances have allowed silicon (Si) semiconductor technology to approach the theoretical limits of the Si material; however, power device requirements for many utility applications of power electronics are at a point that the present Si-based power devices cannot handle. The requirements include higher blocking voltages, switching frequencies, efficiency, and reliability. To o...

Comparison of Wide Bandgap Semiconductors for Power Applications

Recent development advances have allowed silicon (Si) semiconductor technology to approach the theoretical limits of the Si material; however, power device requirements for many applications are at a point that the present Si-based power devices can not handle. The requirements include higher blocking voltages, switching frequencies, efficiency, and reliability. To overcome these limitations, n...

Thermal Behaviour of Three- Level Trench Gate IGBT Modules in PFC and PV Operation

The control of the power semiconductors in a three-level NPC topology employs a set of 12 control signals in total. A back-to-back two-level/three-level inverter has been built to circulate power performing arbitrary load conditions to analyse the thermal dissipation of the power semiconductors. This thermal analysis utilises an IR camera to perform an in-situ measurement and allows precise mod...