Industry EMC Courses
Foundations of Electromagnetic Compatibility
Near-Field Coupling and Shielding:
Inductive and capacitive coupling, crosstalk between PCB traces. Reduction of crosstalk by changing circuit topology, shielding, and termination strategies. Underlying concepts: Self and mutual inductance and capacitance, voltage and current divider, superposition, wavelength and electrical length, common-impedance coupling, effect of shield on electric and magnetic coupling.
Transmission Lines and Signal Integrity:
Voltage and current propagation along transmission lines, reflections at a resistive, inductive and capacitive load, and discontinuities, bounce diagram and ringing, matching schemes. Underlying concepts: Kirchhoff’s laws, Ohm’s law, voltage-current relationship for inductor and capacitor, RC and RL circuits, transmission line model and equations, reflection and transmission coefficients.
Frequency Spectra of Digital Signals:
Spectral bounds on digital clock signals, rise/fall time and bandwidth, effect of the rise time, signal amplitude, fundamental frequency and duty cycle on the spectral content. Underlying concepts: Fourier series, Bode plot, decibel.
Non-Ideal Behavior of Components:
Realistic models of resistors, inductors, and capacitors. Effect of the length of the connecting traces on the frequency behavior and self-resonance. Underlying concepts: inductance, RLC circuits, resonance, two-port networks, s-parameters.
Power Distribution Network:
Decoupling capacitors, value, effective capacitor placement, use of multiple capacitors, embedded capacitance, ground bounce and power rail collapse. Underlying concepts: Non-ideal models of capacitors and inductors, resonance in RLC circuits, magnetic flux, partial inductance.
Single and multistage filters, effect of the source and load impedance on the filter effectiveness, power supply filters, differential- and common-mode filters, CM chokes. Underlying concepts: sinusoidal steady state and frequency transfer function, passive filters, mesh-current analysis.
Conducted Emissions and Immunity:
AC and DC Line Impedance Stabilization Networks (LISN), insertion loss, conducted emission measurements, conducted immunity measurements. Underlying concepts: impedance of capacitors and inductors, low-pass filters, Faraday’s law, Lentz’s law, current probes, transfer impedance.
Radiated Emissions and Immunity:
Controlling differential- and common-mode emissions, radiation fields of unintentional antennas, shielding against high-frequency fields, radiated emission measurements, radiated immunity measurements. Underlying concepts: half-wave dipole and quarter-wave monopole antennas, displacement currents, peak, average and quasi-peak measurements.
Electrostatic Discharge (ESD):
ESD event and ESD gun and ESD testing, air-discharge and contact-discharge methods. Underlying concepts: triboelectric list, capacitance, absolute capacitance of human body, human-body model.
Near-Field and Far-Field EM Wave Shielding:
Near-field shielding against electric and magnetic fields, far-field shielding, shielding effectiveness, effect of apertures, reflection and absorption loss. Underlying concepts: electromagnetic wave propagation, electric and magnetic boundary conditions, wave impedance, Hertzian dipole radiated fields.
PCB Topology and Current Return Path:
Alternative paths of the return current, low-frequency and high-frequency return paths, return path discontinuities and radiation, split power/ground planes, slots in ground/power planes, PCB layout and stack up. Underlying concepts: ground plane impedance, path of least impedance, inductance.
Recent EMC Certificate Courses
2016 - Livonia, MI
- Feb 25-26: EMC I - Math & Circuits Foundations of EMC
- Apr 21-22: EMC II - Electromagnetics Foundations of EMC
- Sep 15-16: EMC III - EM Waves, Transmission Lines, & Antennas Foundations of EMC
- Nov 10-11 EMC IV - EMC & PCB Design
Feedback from Recent EMC Course Participants:
“Excellent material, great cadence of the topics, best class on EMC that I have attended"
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"Pace was just right. Definitely helped support better understanding of EMC"
"Design engineers would highly benefit from these courses"
"This course will greatly help me in designing trouble-free EMC robust electronic modules"
"Instructor has excellent subject knowledge"
"Prof. Adamczyk’s presentation style was excellent. I would have loved to have him as a teacher in college"
"Very refreshing and motivating way to teach EMC applications"