What are some low-cost EMC optimization solutions for power line carrier PLCs?

low-cost optimized EMC solution for power line carrier PLCs includes rational layout, selection of cost-effective components, and simplified design. In terms of layout, critical traces are shortened to reduce loop area. High-quality domestic common-mode inductors, such as the CML3225A-510T, are selected, offering performance close to imported inductors at a lower cost. A π-type filter, composed of inductors and capacitors, replaces dedicated filters. Shielding design is simplified, with partial shielding replacing overall shielding. Simulation optimization avoids over-design. This low-cost solution ensures EMC performance meets standard requirements while keeping cost increases within 5%, making it suitable for price-sensitive products.