Past Columns

When the FCC issued FCC 16-74 and extended the 2.948 Listing program, the pressure driving US-China MRA negotiations evaporated with it. Unpack what the ruling actually says, what the KDB fine print reveals, and whether any real leverage remains for moving MRA talks forward.

EMI filter design hinges on critical component placement. Learn how strategic orientation of capacitors and inductors can transform electromagnetic interference performance, potentially solving compliance issues with existing components and minimal design changes.

The leakage current measuring circuits in IEC 950 and those in North America are exactly the same.

As connected devices multiply and wireless networks grow denser, EMC engineers face a landscape that keeps expanding in scope and complexity. This piece examines how IoT, 5G, and Machine-to-Machine communications are reshaping the practice of EMC — and what compliance professionals need to understand to keep pace.

Want to troubleshoot electronic circuits better? Arturo Mediano says it's all about being able to "see" what's going wrong. The key is looking at your signals in both time and frequency domains, and using the right tools - from basic voltage probes to fancy near-field scanners - to spot and fix those pesky EMI problems.

Almost every safety standard has requirements addressing the accessibility of certain parts.

A 1988 study of current distribution in printed circuit boards reveals how return‑current paths, ground‑plane impedance, and trace coupling drive EMI and signal‑integrity issues. Its insights on low‑impedance ground structures remain foundational for today’s high‑speed digital designs.

Take time to check for EMI, efficiency, temperature, safety, immunity, or any other requirement in your product.

For the purposes of safety, what is “working voltage,” and what is its relevance to the safety of the equipment?

Ferrites for EMI suppression are usually chosen looking for high (resistive) impedance at the...