EMC Filter Design
TBAIn this series of videos, Dr. Ali Shirsavar from Biricha shows how to design EMC filters.
Understanding Common Mode Noise and Differential Mode Noise
In this video Dr. Ali Shirsavar explains the type of noise (common mode and differential mode) that we need to filter in order to pass the EMC test.
EMC Filter Structure and Operation
In this video Dr. Ali Shirsavar explains the complete structure of an EMC Filter down to component level and draws the complete circuit so that we can calculate all the component values.
Input Filter Stability and Middlebrook
The first step in EMC filter design is to make sure that our filter does not interact with the power supply control loop. In this video Dr. Ali Shirsavar explains Middlebrook's stability criteria in simple terms.
Differential Mode EMC Filter Design Down to Component Level
In this video, Dr. Ali Shirsavar explains in detail how to design a differential mode filter and how to eliminate component values that violate e.g. the stability criterion. Dr. Shirsavar also shows how to use an Impedance Paper as a fantastic graphical tool which helps us quickly calculate our components.
Damping the Differential Mode Filter
In this video Dr. Ali Shirsavar explains how to select your EMC input filter's damping components in such a way that they do not impair filter performance while meeting the Middlebrook's filter stability criteria.
Common Mode Choke Operation
In this video Dr. Ali Shirsavar explains how a common mode choke works and how the leakage inductance of a common mode choke can help to filter differential mode noise.
Common Mode Choke Measurement
In this Video, Dr. Ali Shirsavar explains in a step-by-step manner how to set up the Bode 100 to measure the common mode and differential mode inductance of a common mode choke.
Common Mode Filter Design
In this video Dr. Ali Shirsavar completes the common mode section design with component selection. He also revisit all the differential mode components that were discussed in previous videos thus presenting a complete EMC filter design down to component level.
Finalising the Filter Design by Adding the Pi Capacitor
In this video Dr. Ali Shirsavar explains how to add an extra capacitor to the input of an EMC Line Filter to get better attenuation. Step-by-Step calculation and component selection is presented. For further information on Biricha's EMC filter design workshop please visit: www.biricha.com/emc
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