EMC Concepts Explained

This is the first of two articles devoted to RC snubber design. In Part I, we discuss the fundamentals of inductive switching and the need for circuit protection.

This article investigates the impedance of the three standard passive circuit components (R, L, and C) as well as the frequency response of a PCB trace.

This article discusses the reflections on a transmission line at the capacitive and inductive loads.

This article uses a classical circuit-theory model of a series RLC circuit to explain the phenomenon of ringing on a transmission line, or a PCB trace.

This article explains the creation of a bounce diagram for a transmission line circuit (see [1] for transmission line reflections).

This part II of the s-parameter tutorial presents several examples of the s-parameter use in EMC measurements and testing.

This s-parameters tutorial consists of two parts: Part I discusses the fundamental background needed to understand the concept of s-parameters; Part II explains the s-parameters use in EMC measurements and testing

This article examines the spread-spectrum frequency dithering technique to reduce the EMI noise from a SMPS.

This column explores the conducted immunity test known as a Bulk Current Injection (BCI) test, according to ISO 11452-4 specification.

This article discusses a practical approach to designing an input filter to the switch-mode power supply (SMPS).