Electronic Design Techniques and Analysis Required to Meet EMC Requirements

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Seminar Outline

Introduction

EMC terminology
Electromagnetic noise source

Cabling

Electric field coupling
Magnetic field coupling
Cable configurations

Grounding Principles

Single-point ground system
Multi-point ground system
Hybrid ground system
Galvanic action
Galvanic series

Components

Capacitors
Inductors
Transformers
Resistors
Ferrite beads
Diodes
Relays – transient suppression for inductive loads

Antennas in EMC

Antenna types
Radiation due to accelerated charges
Electric-field source and wave
Magnetic-field source and wave
Wavelength

Digital Circuit Design

Noise sources
Pcb layout
Power distribution
Ground grids / ground planes
Decoupling capacitors
Analog versus digital circuits
Noise voltage objectives

Digital Circuit Analysis

Differential mode noise
Common mode noise
Predicting and controlling radiation

Shielding

Shielding effectiveness
Absorption loss
Reflection loss
Apertures

Electrostatic Discharge

Human body model
Static discharge waveform
Chip protection
Circuit board level protection