Radiated Emissions

This is the first of 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.

We are all aware of TVs and radios being affected by vacuum cleaners, food mixers, mobile phones, and the like...

In this article, we establish design guidelines of a spread spectrum modulation circuit as it relates to CISPR 25.

In this article, we detail the key changes between MIL-STD-464C and MIL-STD-464D, the recently-released update to the standard.

This article presents the EMC design techniques for electric vehicle powertrain modules. High voltage EMC regulations for powertrain modules are reviewed first to help understand associated design challenges. The design techniques are then demonstrated in detail to help engineers design a module that will pass the EMC requirements in the test chamber.