EMC Concepts Explained

This is the second 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.

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.

This article presents a concept of a wave together with the wave equations and their solutions.

Resonance phenomenon is explained using several common decoupling capacitor configurations.

The fundamental circuit background is presented and illustrated by the resonance phenomenon in the non-ideal models of passive circuit components: capacitors, ferrite beads, resistors, and inductors.

This article discusses the reflections on a transmission line terminated with either an RL or an RC load.

This article discusses the current distribution for the stripline configurations.

This article discusses the distribution of a PCB return current underneath top trace for the microstrip configuration. Next month’s article will discuss the distribution for the stripline configurations.

This article discusses the common-mode and differential-mode radiation from cables and presents the measurement results from the SMPS connecting wires.

This article discusses the basics of a step-down (buck) DC Switched-Mode Power Supply (SMPS). It should serve at an entry-level tutorial and a building step towards the more advanced designs.