What are some low-cost EMC optimization solutions for EPS?

The core of achieving a low-cost, high-performance EMC solution for EPS lies in optimizing design and streamlining materials while meeting standards. Strategies include:

1. Design optimization to replace expensive components: Reducing noise sources by optimizing PCB layout (minimizing loop area) and drive parameters can decrease reliance on high-performance filters.

2. Using cost-effective standard components: Choosing mature, mass-produced general-purpose EMC components, such as standard-packaged common-mode inductors (e.g., CML, CMZ series), varistors, and TVS diodes, is typically cheaper than custom components.

3. Integrated design: Using connectors or modules with integrated filtering and protection functions may save space and assembly costs compared to discrete solutions.

4. Hierarchical filtering: Using small-size, low-cost components for primary filtering at noise sources (e.g., near power modules), followed by final filtering at system ports, is more economical than using high-performance port filters throughout.

5. Simulation and pre-testing: Simulation and pre-testing avoid over-design and unnecessary rectification costs. The key is precise design, not simply piling on materials.