Using Creepage and Clearance Rules to Isolate EMI Traces on a Flyback Converter

Managing EMI in your flyback converter begins with a smart PCB layout. One of the most critical layout decisions is determining how far to isolate your switching node from other sensitive traces. In this video, Kirsch walks you through how to set up creepage and clearance rules using constraint management in Allegro X Venture, ensuring your design meets safety and EMI standards from the start. You'll learn how to assign high-voltage nets to constraint sets, catch violations using DRC and Vision Manager, and even how to use physical slotting and spacing strategies to meet isolation requirements without guesswork. This process is essential to avoid costly failures during EMI testing and ensure a reliable high-voltage power supply layout.