What are some low-cost EMC solutions for motion controllers (MC)?

Achieving a low-cost EMC solution for motion controllers (MCs) requires prioritizing design optimization and low-cost components. Optimizing PCB layout and grounding reduces noise generation and coupling at virtually zero cost. Ferrite beads are used to suppress high-frequency noise at a low cost. Adding decoupling capacitors to the chip's power pins is extremely inexpensive. Selecting a core chip with good EMC characteristics, while potentially slightly more expensive, reduces external filtering costs. Using three-pin filters instead of independent inductors and capacitors. Using conductive cloth or copper foil tape in chassis gaps instead of expensive conductive pads. For radiated emissions, prioritize meeting requirements through optimized internal layout and wiring rather than relying on expensive enclosure shielding. Use standard MLCC capacitors and wire-wound inductors in the filters instead of special high-frequency models. Utilize digital filtering and spread spectrum techniques in the software. The goal is to select the most cost-effective combination of solutions while meeting standard requirements, avoiding over-design.