How to avoid later modifications in the early design of motion controllers (MC)

Incorporating EMC considerations into the early design phase of a motion controller (MC) is the most effective and economical way to avoid later modifications. EMC standards and target levels should be clearly defined during the design phase. When selecting components, prioritize low-noise, high-immunity chips, such as spread-spectrum clocks and low-EMI switching power supplies. PCB layout should be strictly partitioned: digital, analog, power, and interface.

The power supply architecture should be rationally designed, including necessary filtering and isolation. For critical signals such as clocks, differential pairs, and high-speed buses, pre-plan routing rules and layer stack-ups. The chassis design should consider shielding integrity. Use simulation tools to pre-analyze power integrity, signal integrity, and EMC. Establish a checklist and verify EMC critical points in each design review. Invite experienced EMC engineers to participate in the early design phase. Prototype creation and thorough pre-testing can help identify and resolve issues early on. Early investment in EMC design can significantly reduce later modification costs and shorten project cycles.