Discover practical techniques for troubleshooting Electromagnetic Compatibility (EMC) issues, specifically focusing on radiated emissions from a flyback power supply, in this comprehensive video tutorial. Learn how to set up an EMC pre-compliance lab, understand the impact of cable length on EMC results, and explore the use of ferrites for emission reduction. Gain insights into radiation sources, flyback converter principles, and the application of TEM cells for EMC diagnostics. Follow along as the instructor demonstrates various improvement strategies, including input capacitor optimization, transformer shielding, and Y-capacitor implementation. Witness the step-by-step process of identifying and resolving the root cause of EMC problems, culminating in a successful fix that meets emission standards.
Learn to Fix EMC Problem Easily and in Your Lab - Troubleshooting Radiated Emissions
Overview
Syllabus
What is this video about
EMC pre-compliance setup in your lab
The first steps to try after seeing EMC problems
Shorter cable and why it influences EMC results
Adding a ferrite on the cable
What causes radiation
Flyback Converter / SMPS Switching Mode Power Supply
Using TEM Cell for EMC troubleshooting
Benchmark test with TEM Cell
Improving input capacitors
Shielding transformer
Adding Y-capacitors, low voltage capacitors
Analyzing the power supply circuit
Finally finding and fixing the source of the EMC problem
THE BIG FIX
Adding shield again, adding capacitors
The results after the fix
FIXED!
Taught by
Robert Feranec
