Originally published at: How to Design a High-Power PCB Stack-Up | Sierra Circuits
When you’re working on high-power PCB stack-ups, select the right layer count, place power and ground planes close together, and optimize copper distribution. For board designers working on industrial power supplies, battery management systems, and other high-load applications, getting the build-up right is critical because it directly impacts current delivery, heat dissipation, and EMI performance. Highlights: Determine the required number of layers by considering power rail allocation and electrical isolation requirements. Choose between dedicated power planes and copper pours based on voltage drop targets, routing constraints, and thermal requirements. Verify manufacturability by reviewing copper weight limits, dielectric tolerances, and lamination…