How to Fix Power Supply EMC Issues

This video by Robert Feranec hosts Thomas Eichstetter, who goes step by step through measuring and fixing the EMC problem of a power supply. They disclose simple tricks to improve EMC through easy filter design.

Content

• Setup to measure EMC of a power supply
• The board with EMC problem
• What is causing EMC issues with power supplies
• How to fix the EMC problem by using a filter
• What is needed to measure the EMC of a power supply
• Measuring EMC of power supply
• RF wallpaper explained
• Inductor on RF wallpaper
• Measuring the impedance of inductor
• Capacitor on RF wallpaper and measured
• Designing a filter
• Measuring EMC of power supply with filter
• Optimizing filter
• Where to download RF wallpaper
• Visual examples to show differential and common mode
• Common mode effect when touching the circuit

Resource: Passive Components Blog