EMI/EMC Academy 10 Modules Interactive

Conducted Emissions (CE) Testing
From Switching Noise to Global Compliance

Learn how switching electronics inject unwanted noise into power lines — and how EMC engineers identify, measure, and eliminate it. This course covers CE fundamentals, common-mode vs. differential-mode noise, the LISN and EMI receiver, CISPR/FCC/MIL/DO-160 standards, 10 real-world debugging case studies, PCB and filter design techniques, and pre-compliance testing.

10
Core Modules
6h+
Learning Time
7
Standards Covered
10
Case Studies

Core Modules

Complete these 10 modules in order. Each builds on the previous.

01
Introduction & What Is Conducted Emission
How switching noise is generated, how it enters a power cable, and why it's measured on the wire instead of through the air.
Lesson~35 min
02
CE vs. RE, Noise Paths & Common/Differential Mode
How CE differs from RE, AC/DC/signal-cable emission paths, and the single most important distinction in CE debugging: common-mode vs. differential-mode current.
Lesson~40 min
03
Frequency Ranges & CE Standards
The 9 kHz–30 MHz conducted range, and FCC Part 15, CISPR 11/14/25, IEC 60601, MIL-STD-461, and DO-160 side by side.
Lesson~35 min
04
CE Requirements by Product Category
Consumer, medical, industrial, automotive, military, avionics, telecom, IoT, renewable energy, and motor drives — standards, limits, and typical failures for each.
Lesson~35 min
05
LISN, EMI Receiver & Test Setup
Inside the LISN's equivalent circuit, the EMI receiver front panel, and how a full conducted-emission test bench is assembled and bonded.
Lesson~40 min
06
Reading CE Graphs & Detector Types
How to read a compliance plot against a limit line, and how Peak, Quasi-Peak, Average, and RMS detectors report the same signal differently.
Lesson~35 min
CS
Engineering Case Studies (10 Failures)
Ten real-world debugging case studies — flyback adapters, buck converters, medical supplies, automotive ECUs, VFDs, and more — each with before/after plots, root cause, and fix.
Case Study Library~50 min
08
Debugging Workflow & PCB Design
A structured frequency-based decision tree for isolating CE failures, plus switching-loop, ground, and return-path PCB layout techniques.
Lesson~40 min
09
Filtering, Power Supply & Cable/Shielding
LC filter design, common-mode chokes, X/Y capacitor placement, and how buck/boost/flyback/forward/LLC topologies each generate and can suppress CE.
Lesson~40 min
CS
Pre-Compliance Testing & Summary
Building a bench pre-compliance setup, a full engineering checklist, and a course-wide knowledge check to close out the CE curriculum.
Capstone~30 min

Prerequisites

This course assumes foundational electronics knowledge. You should be comfortable with:

Basic switch-mode power supply topologies (buck, boost, flyback)
Basic PCB layout and grounding concepts
Basic understanding of frequency domain (Hz, harmonics)
Reading component and product datasheets