Analysis and Comparison of the Radiated Electromagnetic Interference Generated by Power Converters With Si MOSFETs and GaN HEMTs
Yingjie Zhang, Shuo Wang, Yongbin Chu
Abstract
In this article, the effects of the parameters of GaN HEMTs and Si mosfets and the load conditions on the radiated electromagnetic interference (EMI) are analyzed based on the compositions of the equivalent noise voltage sources. These compositions include the rising and falling edges of the switching voltages, the zero-voltage-switching voltage drops and the parasitic ringing. The radiated EMI from two identical dual-active bridge converters with GaN HEMTs and Si mosfets is investigated and compared. Experiments were conducted to validate the analysis.
Topics & Concepts
EMIElectromagnetic interferenceRingingConvertersMaterials scienceVoltageElectrical engineeringOptoelectronicsNoise (video)Conducted electromagnetic interferenceElectromagnetic compatibilityGallium nitrideTransistorElectronic engineeringEngineeringComputer scienceLayer (electronics)Composite materialFilter (signal processing)Image (mathematics)Artificial intelligenceElectromagnetic Compatibility and Noise SuppressionSilicon Carbide Semiconductor TechnologiesRadio Frequency Integrated Circuit Design