EMC Filter Design Part 1: Understanding Common Mode and Differential Mode Noise

[@seeker4430]

Holy god.... Something i was searching for so long... God bless... Keep up the good work... Thanks!

[@ramazanyaman2142]

Thank you Mr. Shirsavar for your explanation. It really helped me to understand the basics regarding Common mode and Differential mode currents in an easier way.

[@hugohuaman1487]

Thank you Mr. Shirsavar for your explanation.

[@NatanKalgin]

Thanks Dr. Ali for this helpfull guide.

[@amireshraghi6160]

Thanks for great tutorial, Just have questions how do you calculate Zin if you are using a AC-DC module.

[@bobbauvian7700]

thank you so much. but may I say, something while you are running those markers on the paper the noise make me feel like my limbs are coming off.

[@ahmedazad7704]

Dr. Ali, you are the best. I was looking for some simple explanations regarding this topic for soo long...please make more videos on the EMI/EMC issues

[@StefanStern145]

Wow! Thank your very much! This is the best explanation!

[@nishantkumar-jz7hb]

Hello Sir...I like the way you explain these topics with simplicity......I have a question: How to visualise the common mode noise..when the return is sorted with earth....
Also on the digital circuits of PCB...say a LVTTL clk singal....when normally the return is a DGND plane....how to visualise the common mode and differentiation mode current....
Please give your inputs...

[@mohammedshalash7842]

Too advanced for me, I need to design a simple common mode to measure the differential leakage current (50 hz 230V AC) any advice will be very helpful and appreciated. THANKS

[@basaltnow]

as usual...brilliant explanation, just stellar.

[@zhitailiu3876]

Every time, really excellent tutorial!
Thank you so much!

[@infcastro1]

Man! Great information but that market noise is painful to hear. Please please please do something about it.

[@travisjayday5757]

So much better than my prof, ty!

[@agstechnicalsupport]

Good and instructive video. Thank you for posting !

[@korkutkutaymetin1581]

Thanks for the video series but there is only one thing that ı do not understand. I am designing my own emc filter for my ac-dc power supply. I do not know Fcutoff and L-C. Can you help me please. (By the way my power supply works on 47to63 hz is that my Fcutoff ?)

[@diegobrumchaves5182]

You are a amazing teacher

[@joels7605]

Excellent explanation. Thanks.

[@kelma5504]

Since you drew the direction of -ve idm in the direction opposite to +ve idm already, the waveform of -ve ldm should have the same shape as +ve ldm, instead of being inverted.

[@harrygarcia5822]

Good videos,but the marker noise is huge, please try to fix that somehow

[@James_Bowie]

What I think needs to be made clear here is that common mode currents flow in the same direction as each other and are additive, as compared to differential mode currents which flow in opposite direction to each other and are thus subtractive.

[@TanvirAhmed1990]

great explanation

[@daweima7098]

Thanks for your video.

[@JOVIFLOCAS]

Thanks for the information good work

[@tamyboy1]

You are a God sent

[@mumbaiverve2307]

Very , very nice Sir.

[@ahmetcemalkurtulmus6180]

Thanks for your valuable information

[@samamani5423]

thanks for the video .

[@Mahesh-uy8jw]

Thank you

[@opticalmixing23]

Ty profeasor

[@ravdobrzynski]

0:32 +ve Idm = -veIdm ?? mirrored? Fliped? FIFO? FILO?