#001

[@jugnu361]

Great

[@PuretiNarasimharao]

9:30 simple and deep meaning, help to look at EMI issues.

[@girishk7003]

This is amazing work. So well explained. Thank you!

[@azeemimtiaz4547]

too much theoratical

[@dancollins1012]

This video started slow with the basics, but ended up making some good points about common mode vs differential mode noise, and pcb track design. Thanks

[@TheCountryMan88]

Nice video. Keep them coming 😉

[@CannonballCircuit]

subscribed because of the demo!!! Thanks

[@naren445]

Hi, nice video. I have a doubt.Why are there two push-button switches on the Demo Board? One is for connecting the GROUND and what is the other switch for?

[@EMCFastPass]

Thanks. One connects the grounds at both side directly, the other connects the grounds through a capacitor which allows only some of the high frequency content to pass.

[@morris2005]

Thanks Andy :-) Very nice overview, looking forward to seeing more. Cheers

[@asifsurti9154]

This is really interesting info Andie! Really enjoyed it especially the demo :)

[@pauli7720]

Great to see an actual demo not just theoretical.

[@EMCFastPass]

Thanks :) That's what this channel is going to be all about!

[@ruffrecords]

Excellent video. Unfortunately I could see no obvious difference in spectrum in the final experiment.

[@EMCFastPass]

Definitely didn't come down as much as I expected it would, but for sure several of the harmonics came down by 10 or more dB. I think one issue is that the connections made by pressing the buttons were far from low impedance - the buttons were on the top side of the PCB, the leaded package inductance would be high and the tracks are very thin - all leading to higher inductance. Some current was still flowing around the ground plane slot. More investigation to be done here for future vids!

[@shashankgaonkar2546]

Nice Explaination with practical things

[@alirostami9447]

Hi so nice video, Andy. keep going.

[@FredFierling]

Hi Andy, Where’d you get that TEM cell?

[@FredFierling]

Never mind. I believe I found it: www.emcfastpass.com/test-equipment/product-category/gtem-tem-cells/

[@oly463]

Excellent video, thank you

[@happyhippr]

wow tysm

[@etfoffice8399]

nice information. thank you.

[@gpapanikolaou]

Very nice video. Subscribing. There is a confusion I have however. How is that the return current is exactly underneath the track (that is following the path of least inductance) at only 1kHz of the signal in 5:30. I though this effect happens only at higher frequencies which are above 100 kHz. Isn't 1kHz too low for the current to choose the path of least inductance? Thanks

[@EMCFastPass]

It's a gradual effect as you can see from the simulation. As I mentioned in the vid, if the resolution were higher, I'm sure you'd see a tighter concentration below the wire at 100 kHz. The paper has more information on page 38 (www.jastech-emc.com/papers/IEEE-EMC_TP4_2009.pdf). Maybe I'll do a vid in the future with the EMSCAN unit and a sine wave input to see the effect.

[@momchilhaymanov4369]

EMC FastPass link is broken :(

[@EMCFastPass]

@@momchilhaymanov4369 Just google the filename

[@rjordans]

Robert Feranec die some interesting (quite long) videos on this with simulation of power delivery networks and even has some with a demo

[@ecstazyrm]

good work! looking forward for more!

[@BoozeTeamBullsEye]

Great video!

[@xxxLifeOnTheEdgexxx]

This is gold! Thanks Andie!