Learning EMI Filter Design - From Fundamentals to Real Designs

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Free Download EMI Filter Design - From Fundamentals to Real Designs
Published 11/2025
Created by Sam Tabaja
MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 Ch
Level: Beginner | Genre: eLearning | Language: English | Duration: 42 Lectures ( 4h 33m ) | Size: 2.5 GB

Design practical EMI filters using LC, π, T, and multi-stage topologies, with real examples and simulations.
What you'll learn
Understand what EMI is and what to do about it
Differentiate and separate Common Mode and Differentail Mode noise
Pick right filter toplogy based on application
Learn filter damping techniques
Design small and effecient filters with a focus on stability (Middlebrook's Theorem)
Requirements
If you can handle Ohm's law, reactance, and the idea of frequency response, you're ready.I'll take you the rest of the way - from "I've heard of EMI" to "I know how to design the filter for this converter."
Description
EMI isn't about more parts - it's the right parts, placed right, proven right.I'm Sam Tabaja, M.S. in Electrical and Computer Engineering, with 10+ years in the automotive and energy industries. I learned EMI the hard way: long nights, failed chamber tests, and "mystery" noise that didn't care about my beautiful schematics.Like you, I tried to learn EMI and filter design from YouTube videos, app notes, and random PDFs - each one gave me a piece of the puzzle, but never the full picture.This course is where I put those pieces together for you.What this course is (and isn't)This course is for someone who already has a working converter (and its control loop) and now needs to design EMI filters around it so it behaves in the real world and passes EMC.We do not redesign the converter control loop or compensate it from scratch. We assume the converter and control are fixed, and we focus on what you can do with input and output filters to tame EMI.It's designed as a beginner-to-advanced path:You can start with only basic circuit knowledgeYou finish being able to design and reason about real EMI filters for real hardwareWhat you'll learnBy the end of the course, you'll be able to:Understand what EMI actually is, where it comes from in converters, and why you need to worry about it, or not Separate common-mode vs differential-mode noise and trace how each one flows through your system.Understand the global EMC standards that are likely to apply to your application and what they're really asking you to limit.Choose between LC, π (Pi), T, and 2-stage LC topologies and know when each makes sense for an input filter.Design AC/DC line filters (both input and output) based on target attenuation and corner frequencies.Use impedance vs frequency curves of capacitors to design output C filters that hit the noise where it lives (picking caps at their impedance minima to target specific noise bands).Simulate and check your filters in SIMetrix, including impedance and frequency response.Recognize when a filter might interact badly with the converter (CPL behavior, stability concerns) so you don't fix EMI and break everything else.Apply placement, grounding, and routing best practices so your filter works in hardware, not just in SPICE.Walk away with downloadable appendicies that cover design equations for different filter topologies.Walk away with an editable excel sheet that helps you decide on a single vs two-stage LC filter.Walk away with a printable, handbook-style module you can keep next to your bench for quick reference on placement and routing tips.Practical design examples insideThis isn't just slides and theory - we walk through two full, practical design workflows:Input Filter Design ExampleStart from a noisy, already-built converterDesign an LC input filter, then upgrade it to a 2-stage LC filter, and then a π filterSee how each change moves the corner frequencies and improves attenuationUnderstand the effect of source/load impedance and when extra stages stop helpingOutput Filter / Capacitor Selection ExampleDesign an output C filter for a converter with known noise issuesUse capacitor impedance vs frequency curves to select parts whose lowest impedance lines up with the noise peaksSee how mixing different capacitor types/values shapes the overall impedance and the noise performanceThese examples are built to mirror what you'll face in the lab:you have a converter, you see noise at certain frequencies, and you need a filter that works, not a perfect academic example.How we'll learnOver about 4.5 hours of focused content, we'll use:Crisp slides and clear diagrams to build intuitionStep-by-step derivations only where they actually help design decisionsSIMetrix simulations to visualize impedance, resonances, and filter behaviorChecklists and placement tips for turning designs into quieter boards and better chances of first-pass compliance
Who this course is for
An electrical / power electronics engineer working on converters, inverters, automotive, or energy systems
A hardware engineer or integrator who suddenly "owns EMI" for a project
A student, hobbyist, or junior engineer who understands basic circuits and wants to jump to industry-style thinking
Someone who's tired of collecting random EMI tips from YouTube and wants a structured, end-to-end path from basics to practical filter design
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