Transient voltage overshoot is a common phenomenon in wide bandgap (WBG) power semiconductors due to high frequency and fast switching applications. An application driven repetitive transient off-state overvoltage datasheet specification is desired for design engineers. In this work, a 1% duty-cycle-based overvoltage specification is proposed by estimating the total lifetime … [Read more...] about Proposing a Duty Cycle Based Repetitive Drain Overvoltage Specification for GaN HEMTs
Power conversion
Alternative Way to Develop Small-Signal Models of Power Converters
The small-signal model of a switch-mode power converter is a useful tool in understanding its dynamic behavior and designing a proper compensator. In the power electronics community, people derive small-signal models almost always by perturbation and then extracting the small ac components manually from the whole system equations. This process is not systematic and potentially … [Read more...] about Alternative Way to Develop Small-Signal Models of Power Converters
Deep Learning Defined Power Electronic Converters
In pursuit of achieving the sustainable development goals, significant transformations are underway in the energy and transportation sectors. Cyber-physical system (CPS), a component of Industry 4.0, enables real-time monitoring, efficiency enhancement, and data generation. However, it also introduces challenges and vulnerabilities, particularly the risk of cyberattacks [1] . … [Read more...] about Deep Learning Defined Power Electronic Converters
Unveiling the Microworld Inside Magnetic Materials via Circuit Models
The progress made in wide bandgap (WBG) semiconductors has resulted in rapid miniaturization and increased efficiency of power converters. However, the improvements in magnetic components, such as inductors and transformers, have not kept pace with these advancements [1] , [2] , [3] . Although advances in WBG devices, novel topologies, control schemes, and hardware fabrications … [Read more...] about Unveiling the Microworld Inside Magnetic Materials via Circuit Models
Recent Advances in Capacitors Used in Wide Bandgap Power Circuitry
Advances in wide bandgap (WBG) semiconductor technologies and the active devices they enable, including power diodes and transistors, have directly contributed to recent improvements in power conversion efficiency, and given today’s power circuit and grid demands, these efficiency gains are more important than ever. For more about this article see link below. … [Read more...] about Recent Advances in Capacitors Used in Wide Bandgap Power Circuitry