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EMC Tutorial Articles

Introduction to EMC
Working with Decibels
Identifying Current Paths
Grounding
Shielding Theory
Practical EM Shielding
Circuit Board Decoupling
Power Circuit Layout
Transient Protection
Integrated Circuit EMC

Common Impedance Coupling
Electric Field Coupling
Magnetic Field Coupling
Time/Frequency Domain
Electromagnetic Radiation
Faraday's Law for EMC Engineers
Imbalance Difference Modeling
Common Mode Filtering
PCB Layout
EMC Design Guidelines

EMC Calculators

Inductance Calculator
Resistance Calculator
Harmonics of a Trapezoidal Waveform
Cavity Resonance Calculator

Cable Transmission Line Parameters
Circuit Board Trace Impedance
Plane Wave Shielding Effectiveness

Maximum Radiated Emissions Calculator (MREMC)

Main Menu
Differential-Mode Radiation
Common-Mode Radiation

Power Bus Radiation
I/O Coupling Radiation

Board Layout Video Examples

Identifying and Correcting Problems with Simple Circuit Boards

Example 1 - (14 min)
4-Layer Mixed Signal Board

Example 2 - (17 min)
6-Layer Mixed Signal Daughter Board

Example 3 - (24 min)
6-Layer Mixed Signal Board with RF Analog

Video Demonstrations

Dips in the Supply Voltage can Confuse a Microprocessor - (6 min)
Microprocessors need a constant supply of power in order to function correctly. This short demonstration illustrates what can happen when a drop in the supply voltage is long enough to affect the internal logic, but not long enough to reset the processor.