emc

The U.S. Food and Drug Administration (FDA) has finalized its guidance on electromagnetic compatibility...

This is the second of three articles devoted to the design, test, and EMC immunity evaluation of multilayer PCBs containing analog circuitry.

Walkie-talkies interfere with electronic door locks on aircraft cockpits.

This is the first of three articles devoted to the design, test, and electromagnetic compatibility (EMC) immunity evaluation of multilayer PCBs containing analog circuitry. In this study, there are seven design variants that all contain a similar schematic but implement different PCB layout techniques.

Navigation and control instruments can be caused to malfunction. During the approach of an Alitalia aircraft at Turin airport on 31 December, 1995, one of the 160 passengers onboard switched on his mobile phone, thus blocking the plane’s autopilot system.

This article presents a simple method of estimating the parasitics of the three passive circuit components (R, L, C).

The history and insight into how the EMC specifications and procedures evolved at one automotive original equipment manufacturer (OEM). Other present-day OEM specifications are more similar than different mostly due to the extensive reference to international standards which these OEMs have taken part in developing (e.g., EMC committees). Knowing this history should help today’s EMC practitioners, especially those new to the discipline, gain some insight into the implementation and limitations of test procedures and when to be flexible in analyzing test results.

Is it safe to use cellphones on airplanes? The real question should be: “Is it safe for passengers to use any electronic equipment on airplanes?”

We continue to focus on the AC/DC power converter board (2-layer PCB). We evaluate the implementation of several EMC countermeasures and present the conducted and radiated emissions results performed according to the CFR Title 47, Part 15, Subpart B, Class B.

This is the eighth article in a series of articles devoted to the design, test, and EMC emissions evaluation of 1- and 2-layer PCBs that contain AC/DC and/or DC/DC converters and employ different ground techniques [1-7].