DC/DC converter

An Arduino-based board with no solid ground return plane makes the perfect "what not to do" test case. Near-field probe measurements, spectrum analyzer captures, and real emissions data reveal why two-layer designs can be EMC trouble — and what it takes to fix them.

Full-wave EMC simulation tools are powerful — but often too slow, too costly, and too complex for real-world troubleshooting. Dr. Min Zhang makes the case for free SPICE-based tools, walking through three field scenarios where quick models helped isolate failures, validate test setups, and guide next-generation designs.

Learn how to calculate RC snubber values to eliminate parasitic ringing in power electronics circuits. This step-by-step guide covers measuring ringing frequency, estimating stray inductance and capacitance, and selecting Rs and Cs values to damp resonance and reduce EMI.