Learn To Fix EMC Problem Easily And In Your Lab – Troubleshooting Radiated Emissions | Min Zhang
Troubleshooting EMC problem can be done directly in your lab before going into an EMC test house. Practical example in this video – fixing Radiated Emission issue of a Flyback Power supply.
Chapters:
- 00:00What is this video about
- 02:27EMC pre-compliance setup in your lab
- 12:14The first steps to try after seeing EMC problems
- 13:15Shorter cable and why it influences EMC results
- 18:44Adding a ferrite on the cable
- 23:32What causes radiation
- 27:18Flyback Converter / SMPS (Switching Mode Power Supply)
- 29:26Using TEM Cell for EMC troubleshooting
- 33:04Benchmark test with TEM Cell
- 35:02Improving input capacitors
- 43:20Shielding transformer
- 46:24Adding Y-capacitors, low voltage capacitors
- 49:21Analyzing the power supply circuit
- 54:30Finally finding and fixing the source of the EMC problem
- 57:59THE BIG FIX
- 1:06:11Adding shield again, adding capacitors
- 1:12:13The results after the fix
- 1:13:09FIXED!
