Noise Suppression Basic Course

Noise Suppression Basic Course [Total of 13 Chapters]
Chapter 1

Reasons for requiring EMI suppression filters (EMIFIL ® )

Chapter 1 describes the reasons for using EMI suppression filters (EMIFIL ® ), and explains how shields and filters used for electromagnetic noise suppression work.

[Average time required for reading: approx.12 mins]

Chapter 2

Mechanism of Causing Electromagnetic Noise

In order to have a deep understanding of the mechanism of noise interference, Chapter 2 focuses on the issues regarding the noise source side and describes the mechanism of noise occurrence such as how the noise occurs and where it occurs in the electric circuit.

[Average time required for reading: approx.47 mins]

Chapter 3

Factors of making noise problems complex

In order to handle the noise interference for electronic devices, you need to understand not only the noise source origin, but also the characteristics of the transmission paths and antennas. Among these topics, Chapter 3 describes noise transmission paths.

[Average time required for reading: approx.50 mins]

Chapter 4

Spatial conduction and its countermeasures

Many of the electromagnetic noise interferences are transmitted through space via radio waves. Chapter 4 describes the spatial conduction of noise. The chapter first discusses the interference between circuits (problem of short distance) and then describes the antenna theory (problem of long distance) and shielding to block this problem.

[Average time required for reading: approx.57 mins]

Chapter 5

Conductor conduction and common mode

Chapter 5 first describes the existence of two modes (common mode and normal mode) for noise to be transmitted through a conductor and then describes the conversion into common mode.

[Average time required for reading: approx.49 mins]

Chapter 6

EMI suppression filters

Chapter 6 describes the typical filter configuration used in noise suppression and how the actual characteristics of electronic parts used affect noise suppression results.

[Average time required for reading: approx.55 mins]


Chapters 7 and onward are also planned to be released in series. Updates will also be announced in  Murata eNewsletter .

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