What is EMC, coupling paths, & regulatory standards before a product can ship

Marcin Szajner will be presenting “Component Selection for EMC”.

The topics to be covered in depth are:
• EMC
• Magnetic fields
• Filtering and signal
• Insertion loss calculation
• Filter topologies

This will include an introduction to what EMC is and identifying EMC coupling paths and typical regulatory standards required for conducted and radiated compliance. In addition, he will discuss the importance of the magnetic field, the proper core material and frequency for noise suppression and explain initial permeability and complex permeability and importance of heat. In regards to filtering and signal issues, he will give tips on identifying differential/common mode noise, as well as understanding how common mode chokes work, what to look for in datasheets and advantages of different winding styles

Do you want to know more about insertion loss calculation? Marcin will give guidance on typical system impedances and mathematical/practical approach in finding a component for EMI quickly. And, lastly, he will present on typical filter topologies for conducted noise tests. This will include extrapolating Z, XL and R information vs. frequency and importance of DC bias. This will include two examples:

1. Removing noise from test board (Vcc) using standard filter topologies and comparing results with LTSpice (via PowerPoint example).
2. Removing noise from test board (Vcc) using CBF, standard inductor, bifilar and sectional wound common mode choke (via PowerPoint example). And he will give an analysis as to why those components behave a certain way.

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Bio: Marcin Szajner

After serving in the United States Army, Mr. Szajner received his degree in Electronics and Computer Science from DeVry University in Addison, Illinois. He has spent the last 13 years working in the electronics industry holding positions in both test engineering and magnetics design engineering roles. Mr. Szajner joined Wurth Electronics Midcom Inc., a subsidiary of Wurth Elektronik GmbH KG & Co., in 2010 and currently holds the position of a Field Applications Engineer for EMC and Inductive Solutions.