Modern Power Electronics and Drivers

Overcoming EMI Challenges in GaN-based Power Converters: Practical Solutions for 2025 Gallium Nitride (GaN) power devices have revolutionized power electronics with their superior switching speeds and efficiency, but they introduce significant electromagnetic interference (EMI) challenges that can derail even the most carefully designed systems. In this comprehensive 2025 guide, we'll explore practical, tested solutions for taming EMI in GaN-based converters, from layout optimization and filtering strategies to advanced gate driving techniques and measurement methodologies that ensure compliance with international standards. 🚀 The GaN EMI Challenge: Why Faster Switching Creates Bigger Problems GaN transistors typically switch 5-10 times faster than traditional silicon MOSFETs, with transition times often below 5ns. While this enables higher efficiency and power density, it generates significant high-frequency noise that extends well into the hundreds of MHz range. T...