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@ErnestGullon 4 күн бұрын
Congratulations for such an accurate and detailed work, and thank your for the explanation! I'm designing industrial products, powered with SMPS, usually with no PE, and with many different isolated ports including ethernet and analogue inputs, and I use to have lots of work to have low emissions while avoiding dielectric breakdown through the windings of the CMC. With your circuits I will be able to estimate the effects of the parasitic capacitance of this isolated circuits for the voltage spike. CMC are commonly underestimated in terms of breakdown voltage between input and output, sometimes visible as a blue glow in the part combined with higher EMC disturbance level as the provided by the test itself. Before I start to reproduce your schematics, is there a way to gently get them? Thank you again!
@emcDV 4 күн бұрын
Thanks for the comment! Are you working with high power electronics? Maybe you are doing your own CMC on some cores? I did not have this Issue with CMC before, very interesting. One thing about CMC layout that you need to have no GND plane under CMC for 1 or more layers below because the CM current can bypass and most of the immiunity tests is common mode current. Sent me an email, contact is on my YT website. Regards
@alvaroqueridorodriguez9375 Ай бұрын
Hello, a very interesting video. I have observed that in the LPE circuit you connect V1(-) to PE_in through a 10k resistor. why do you do this? Is it indicated in the standard?
@emcDV Ай бұрын
Hi, 10k resistor it is not a standard value I put it due to LTspice problem with short but you could try different values. Just think what connection you have in reality and what value should be there. Generally you want to simulate circuit close to your reality. Thanks for your question! Regards.
@biswajit681 Ай бұрын
Hello ..how have you been doing? It's been a long time
@emcDV Ай бұрын
@@biswajit681 Too long... I need to put more topics on YT. Do you have any specific topic that would be interested for you? Regards
@biswajit681 Ай бұрын
@@emcDV hey Many Thanks for your response..... possibly there some topics in my mind Electromagnetic simulation in ansys or similar tools Shielding effectiveness
@gerrikoio 3 ай бұрын
I am not getting the same results at all. First question is IC={dV}. You provide no explanation on how you entered this into the model.
@emcDV 3 ай бұрын
Hi, sorry for the late reply I was on vacation. I added the initial conditions as ‘Value2’ in the component attribute editor. It is opened by right-clicking the capacitor with the Ctrl key pressed. Also check that you are not omitting the initial conditions from the transient simulation options. Let me know if you were successful
@gerrikoio 3 ай бұрын
@@emcDV hi, yes I was successful thanks.
@arunanindian40 4 ай бұрын
Thanks a lot and keep it up Your work is fantastic 🎉
@emcDV 4 ай бұрын
@@arunanindian40 i will, just need to find more time, next topić maybe Magnetic coupling and mutual inductance
@xuio_ 5 ай бұрын
great video! could you please share the spice files that you created, it would be really helpful. Thanks!
@emcDV 5 ай бұрын
@@xuio_ Not now... someday
@ukaszmajchrzak1802 5 ай бұрын
Very interesting!
@biswajit681 5 ай бұрын
Hello, how are you doing? Long time no see😅
@emcDV 5 ай бұрын
Hi, very good, but I lack time for new videos. I will try to put next topic as soon as possible. Sorry for waiting⏳
@seshansesha7645 5 ай бұрын
Could you please make a video on IEC 61000-4-4 Capacitive clamp method injection and IEC 61000-4-6 Clamp and CDN method Aswell?...
@emcDV 5 ай бұрын
Hi, this is a CDN Method for mains inputs. Capacitive clamp method could be done, also.
@seshansesha7645 5 ай бұрын
Great...thank you
@robertthurman8412 6 ай бұрын
The simulations that you present are fine for a system that is class I i.e. has a connection to chassis and earth but class II devices are different as they don't tend to have Y-caps. How do you typically measure the different ground connections? I typically use the gnd and com symbols with a 10pf and 10Gig between them.
@emcDV 5 ай бұрын
Hi, it is true about the class that this simulation is for safety class 1 devices. If you can't have Y capacitors, then only series elements remain :-)
@robertthurman8412 6 ай бұрын
bookmarked!
@robertthurman8412 6 ай бұрын
Hey this is great. I was working on a simulation for Burst as well. The new IEC60601-1-2 specification requires 100KHz all the time the 5KHz has been relegated to the past.
@emcDV 6 ай бұрын
Thanks! I think more and more standards will have only 100 kHz, as you wrote about 5 kHz, that this is a requirement of the past👍 Try to change only the frequency, and the circuit should work with 100 kHz. It will be a little slower.
@AnalogDude_ 6 ай бұрын
What does it take to make such filter for an simple AB class transistor audio, i'm using or gonna use BD137/BD140 on bi-polar 15V. I adjusted the resistors to 1 amp max at 12V. i have a small transformer for testing, how do i choose the right transformer and this EMI FIlter?
@biswajit681 6 ай бұрын
Hello,How are you doing? Any great video is coming this week ?
@emcDV 6 ай бұрын
i will try but no promises. Maybe video about RE helpful calculations. Regards
@emcDV 6 ай бұрын
Sorry for the low volume 🔉
@Barabass 6 ай бұрын
Thank you for this free tip
@antonispapadopoulos9816 6 ай бұрын
Thanks for sharing! Where can we find the models of "ESD Simulator HBM Model"? Do u have any specific library that contains this model and all the others that you show in the channel? Thanks in advance
@emcDV 6 ай бұрын
Hi, for now you need to make models by yourself. Maybe in the near future I will upload them. Regards
@antonispapadopoulos9816 6 ай бұрын
@@emcDVThanks, I will give it a try.. keep it up!
@peterwolf1560 6 ай бұрын
Very nice, many thanks for that. Question: is this model applicable for 330 pF / 2 kOhm network as well? How accurate the simulation can be in this case?
@emcDV 6 ай бұрын
Hi, it should work. The ESD generator schematic is this same, so you will only need to change first brenach values for capacitor and resistor (HBM branch). The tolerances when checking the ESD curve will be a little diffrent and according to ISO 10605, thanks.
@peterwolf1560 6 ай бұрын
@@emcDV Perfect, that was helping a lot. Thanks for your swift feedback.
@asadullahjan3610 7 ай бұрын
Hello, Can you Please add a simulation file to the description? Thank you
@asadullahjan3610 7 ай бұрын
Hi, how can we do CMC modelling in LTspice?
@emcDV 6 ай бұрын
Hi, this can be done. I will do a video about CMC...wait for it.
@ukaszmajchrzak1802 7 ай бұрын
Excellent guide!
@biswajit681 7 ай бұрын
One more request could you please make video on how to become EMI EMC engineer..what are the topic EMI EMC engineer should know better or any tips would be helpful for all the entry and experienced engineers
@emcDV 7 ай бұрын
This is a very good topic, some day
@biswajit681 7 ай бұрын
Do you have experience on Ansys EMI EMC Modelling??
@emcDV 7 ай бұрын
Yes, which simulation would you be interested in?
@biswajit681 7 ай бұрын
@@emcDV From Ansys tool familiarities to PCB level modelling...for example any power supply board
@biswajit681 7 ай бұрын
Many Thanks!! You are doing great service to humanity.. please keep continue this ❤
@carlob5015 7 ай бұрын
Invaluable content! Thank you for sharing your knowledge with the electrical engineering community. Change Nothing! I am looking forward to you next video.
@emcDV 7 ай бұрын
Thank you, please share my channel to others. I recently put Surge test video if you didn't not see it. Regards
@ukaszmajchrzak1802 7 ай бұрын
Very interesting and helpful!
@emcDV 7 ай бұрын
Thank you! I will try to put next video sooner :-)
@biswajit681 7 ай бұрын
When is your new video is coming??
@emcDV 7 ай бұрын
This week. I am preparing surge test that is a little more complex to simulate but it can be done 🙂
@biswajit681 7 ай бұрын
@@emcDV in future could you please make video on lightning simulation?
@emcDV 7 ай бұрын
Surge test is coupled voltage from lightning⚡and that I will cover this week.
@biswajit681 7 ай бұрын
@@emcDV wow that's great..will be eagerly waiting for it
@emcDV 7 ай бұрын
I put a new video on Surge lightning ⚡ simulation, enjoy :-)
@itsjyotirmoy9235 8 ай бұрын
Hi .. how to simulate 800 to 400 volt Dual active bridge converter in LTSpice. New to LTspice. Please make a video on this
@emcDV 8 ай бұрын
Hi, to some extent it can be done, but now I am preparing a simulation of the Surge test
@itsjyotirmoy9235 8 ай бұрын
@@emcDV ok sure.. once done this plz make one for DAB converter
@MrMekambe 8 ай бұрын
An electrician was shocked by a live wire when he was asked why... He said he couldn't resist.
@MrMekambe 8 ай бұрын
What was the electrician/ detective’s name? Sherlock Ohms.
@MrMekambe 8 ай бұрын
Why did the electrician punch a hole in the wall? He needed an outlet.
@MrMekambe 8 ай бұрын
Do you know why the light bulb failed his math quiz? He just wasn’t that bright.
@MrMekambe 8 ай бұрын
What’s an electrician’s favorite ice cream flavor? Shock-o-late.
@MrMekambe 8 ай бұрын
Which is an electrician's favorite band? AC/DC.
@biswajit681 8 ай бұрын
EMC Marvel!! Many Thanks for your excellent video... please keep posting this gold!!
@emcDV 8 ай бұрын
Thank you for your support and viewing! Stay tuned for more videos!
@biswajit681 9 ай бұрын
After long time..where have you been all these days...good to see you back
@emcDV 9 ай бұрын
Thanks! I was lost in the vacuum of space and time 😉. Now I will have time to publish content regularly, I hope you like it!
@biswajit681 9 ай бұрын
@@emcDV sure ,I definitely liked it...I hope now you will be posting EMC treasure regularly 😁😊
@sandeepjawalkar3619 9 ай бұрын
sir can you pls share the ltspice file that will be very helpful to add values
@maciejc.617 7 ай бұрын
Prepare your own model. Stop being lazy and sneaky. 🖖🏻
@samrand4001 9 ай бұрын
Dear Sir, I love your videos, I am waiting for new ones, I can't wait for new ones. thank you very much.
@mcfan1956 11 ай бұрын
great channel and videos!!! looking forward to more EMC tutorials like surge, esd, etc!!!
@emcDV 8 ай бұрын
ESD done, check my videos 🙂
@xiyaozhao4304 Жыл бұрын
Hi, slide 7 stated 2 types of the antenna structures for DM noise, perimeter smaller or equal to lamda/4, or larger than lamda/4. It means any length of the perimeter will be an antenna. Could you explain more here? Is there any written error?
@BMM66666 Жыл бұрын
Great video! I would ask how about the ESD/EFT immunity circuit and its simulation in LTSpice?
@emcDV Жыл бұрын
Thanks, the ESD LTSpice simulation is possible to some extent. I have done it.
@BMM66666 Жыл бұрын
@@emcDV I’ve done an ESD generator model in LTspice, but I am working on modeling the EFT model, some issues haven’t solved. Anyway, this a good content, and wish to learn more strategies about the immunity.
@emcDV Жыл бұрын
I think time is problem due to fast transien events combine with DUT circuit could be very long to compile.
@biswajit681 Жыл бұрын
Hi any update??
@biswajit681 Жыл бұрын
Hi any update on your new series??
@mhzxtal6665 Жыл бұрын
Hello, where can i download your ltspice model in this video?
@emcDV Жыл бұрын
You can not :-)
@mhzxtal6665 Жыл бұрын
opps okay :)@@emcDV. Anyway is there any guidance on how to simulate the similar results ?
@emcDV Жыл бұрын
@@mhzxtal6665 video is a guidance
@mhzxtal6665 Жыл бұрын
@@emcDV Thanks. I will watch it more in details :)
@maciejc.617 7 ай бұрын
@@emcDVIMHO This is the curse of our times. You give people a tutorial on how to make a model, and they want you to give them a ready-made one instead of using the tutorial and making their own, learning a lot of things along the way.
@biswajit681 Жыл бұрын
Any update on the new video
@emcDV Жыл бұрын
Hi, I will add another video as soon as it is possible. I am creating a new series on this channel.
@唐麒麟-l9z Жыл бұрын
hi,sir. I want to ask for your help to simulation the outpu impedance of EMI filter?
@emcDV Жыл бұрын
Hi, what is the problem? You could write to me a message.
@parthpatel1605 Жыл бұрын
Nice vedio 👍 But most of people's even high end engineers have no awareness of EMC. All the knowledge is failure when we goes to practical implementation of electronic projects bcz of unawareness of EMC.
@emcDV Жыл бұрын
Thanks. I think I know what you mean. I want to start a series on EMC rules for schematic, layout and housing mechanics. This should be helpful because there are a lot of EMC rules to remember, and some of them depend on the device :-)
@parthpatel1605 Жыл бұрын
@@emcDV 👍😊EMC is called black magic of the Field understanding it means a lot. You are doing great work. I am too international Patent holder in electronics and that's why love and respect for your vedios😊👍👍😊
@brightpan9219 Жыл бұрын
Hi. In CM noise, Amplitude is 0.01V. But what I get from Mathcad is 0.5A. 🤣
@emcDV Жыл бұрын
Well found! Tha input values in calculations I had slightly different from those in presentation, so in dB is even higher about 114 dB.
@maiconcarvalho65 Жыл бұрын
Hello friend! What is this software?
@emcDV Жыл бұрын
Ansys 🙂