How to solve EMC problems! || The mystery of the buzzing speaker
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День томуYou want to know more about the Würth Elektronik EMC components? Then click here: bit.ly/EMCFilterKit_EN and order your design kit.
You can find the products shown in the video below:
Common Mode Chokes: bit.ly/CommonModeChokes_EN
Capacitors: bit.ly/caps_Catalogue_EN
Würth Elektronik “Theoretical Basics for Common Mode and Differential Mode”: bit.ly/askLorandt_CommonMode_EN
Useful application notes: bit.ly/caps_Appnote_EN
Specialist book “Trilogy of Magnetics”: bit.ly/Book_TrilogyOfMagnetics_EN
Previous video: bit.ly/WEcaps_EN
Subscribe to Würth Elektronik on UKposts: bit.ly/WE_YT_GS
Facebook: / greatscottlab
Twitter: / greatscottlab
Support me for more videos: www.patreon.com/GreatScott?ty=h
In this video we will solve the mystery of the buzzing speaker. The reason for the noises are of course EMC problems, aka electromagnetic compatibility problems. That is why I will explain the reasons for EMC problems, how to measure them and how to fix them as well. While doing so, I will not only talk about mains filter but also about other areas of the EMC. Let's get started!
Thanks to the Würth Elektronik eiSos Gruppe for supporting this video.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod
(incompetech.com)
@GrahamCantin 4 роки тому
Wow, rare to see a video with such a chill sponsor. Great job Würth, thanks for your hospitality!
@dl8cy 4 роки тому
After 1 minute of the german version of this video i switched to english - even i am a german native speaker, this german voice is so unfamiliar to me :-)
@legominimovieproductions 4 роки тому
Me too😂 learning electronics in english is way more fun than in german :)
@pcislocked 4 роки тому
same dood except I'm not native at both
@plasmachicken 4 роки тому
Same
@juliangunthnerprivat1868 4 роки тому
Ne too🤣
@syamsthefullrainshade2558 4 роки тому
It's most like indian to me..lol
@deadbird99 4 роки тому
As a bass player I've had such a problem lately because of a cheap PSU causing an annoying electrical hiss at high volume, which is amplified when I use distortion pedals, and I almost always do. Thanks a lot for this video!
@greatscottlab 4 роки тому
Now you know how to fix that problem ;-) Thanks for the feedback.
@deadbird99 4 роки тому
@@greatscottlab yes, even if I think I will definitely stick to the pre-built solution ^^
@akash-zg4vj 4 роки тому
Davie504
@deadbird99 4 роки тому
@@akash-zg4vj yes, but actually no. But you can still slap like now, or I will call the police.
@akash-zg4vj 4 роки тому
@@deadbird99 ayyyyyyyyy. *Knife pointing*
@shimonelstein7476 4 роки тому
Thanks for a great explanation. I'm a physicist / engineer. This was always a mystery to me, especially the common mode vs differential mode. You really cleared it up.
@donepearce 2 роки тому
I hope this was a joke
@carlosruizmora3111 4 роки тому
You definitely raised up the bar with this video. It kept me absorbed for its whole length (despite I was in the office). Thanks a lot, keep bringing more videos like this one.
@Magic-Smoke 4 роки тому
Thanks for bringing up this very important topic. In most of the maker designs we see here on UKposts and elsewhere, EMC is never mentioned. Yet it affects us all on a daily basis, from interference on audio to degraded WiFi or other equipment performance. Moreover, you can even, unknowingly, affect your neighbours. I have friends who have tracked down interference on audio to faulty/cheap/nasty SMPS several houses away!
@der_pinguin44 4 роки тому
Your English has changed so dramatically since I first watched you. Good work, and thank you for all the videos.
@brianogram5194 4 роки тому
This is great information to share with amateur radio operators too. We're always chasing down RFI. Thanks Scott!
@Viru5ZA 4 роки тому
Stay creative and I will see you next time! So inspirational and helpful, thank you so much!
@LorneChrones 4 роки тому
Great intermediate video into the world of EMC!. A good thing to remember is that signal/power integrity/quality are inversely releated to EMC problems, if you have a well routed signal (tight ground return, matched impedances, length matching on differential pairs, etc), then your signal integrity will be solid plus that particular signal will likely be EMC compliant and immune to external interference. Win-win situations like that are certainly possible and desireable. If you can catch them early in the design phase (schematic & layout) then you'll be saving yourself alot of frustration down the road. Recommendation to definitely do a video on ESD / EFT in the future as that's another common EMC problem that EEs must face when designing products.
@Hennir_97 Рік тому
This was very insightful! Thanks for the time and effort you put into making this video. Keep up the good work!
@JonathanDeWitt1988 Рік тому
Thank you for the great introduction video Scott. It was very enlightening.
@an1mesh 4 роки тому
When you're so early, the title changes in front of you (from German to English)
@certified-forklifter 4 роки тому
He did two videos, one in English, one in German
@greatscottlab 4 роки тому
it's a kind of magic
@itsTyrion 4 роки тому
@@greatscottlab *Queen song starts playing in my head*
@an1mesh 4 роки тому
@@itsTyrion which one! I love em!
@GRBtutorials 4 роки тому
As well as the video itself.
@SkyhawkSteve 4 роки тому
I've used Wurth filter components in my professional life, and they have been very good. I'd also recommend Fair-rite for ferrite devices. For this sort of interference, adding a filter will get the job done but adds cost. If this was a production situation, the first goal is always to fix the device emitting the noise. For the hobbyist getting their first exposure to EMC, this is a fine introduction.
@th34lch3m1st 4 роки тому
Great explanation. This is a solid reference for future research on my EMC problems. This video go straight on my electronics playlist. Thank you very much for sharing this.
@greatscottlab 4 роки тому
You're welcome :-)
@joczo97 4 роки тому
This is incredibly useful for ham radio ops
@soranuareane 4 роки тому
I love this video; it's so informative. Please keep it up! I think the word you're looking for is "suppress" rather than "oppress".
@herpingscienceandmore8506 4 роки тому
Hi great Scott you’ve told me a lot about electronics thank you for everything
@greatscottlab 4 роки тому
You're welcome :-)
@Audio_Simon 4 роки тому
This was excellent! I had a very similar problem making powered speakers and buying a cheap PSU brick on eBay. A genuine Toshiba one was much quieter.
@IanGrams 4 роки тому
Wow talk about good timing. I recently got an HDMI audio splitter from Amazon and it seems ever since I plugged it in my speakers have been making similar noises. Not sure I can manage building a filter (even with a kit 😅) but I was considering trying out some snap ferrites. Thanks for the interesting and informative video!
@MCsCreations 4 роки тому
Fantastic work, dude! Thanks for all the tips! 😃
@CShand 4 роки тому
Would love to see a video on load cells and load cell amplifiers, I'm always recalibrating them when someone bangs one and they drift awfully must learn more.
@pauljackson2126 4 роки тому
This video gave me better knowledge about EMC topic as compared to my book on the same subject... Loved your video and thank you for making this topic memorable for me
@greatscottlab 4 роки тому
Thanks for the feedback :-)
@lemonglataitor2123 4 роки тому
This video is great as always and helped me well!
@GoSlash27 4 роки тому
Coincidentally, what you just demonstrated is my new job. I spent 20 years doing production testing and troubleshooting of avionics, and now I'm doing EMI testing for new designs. 2 months ago, I had never even heard of such things as LISNs.
@peterpade6293 4 роки тому
thanks for the information. Well presented for this old engineer.
@stephenphilp1380 3 роки тому
Thank you. Very informative.
@askLorandt 4 роки тому
You deserve your nickname: you are a GREAT person and engineer! Excellent explained and reproduced. Was a GREAT pleasure from my side #askLorandt
@user-yw9fm7kb1s 4 роки тому
Your videos are so enjoyable.
@larissamonroe21092 4 роки тому
@GreatScott You know, after I watched this, I went to Würth Elektronik, and got the sample(s), and I didnt expect it to be so robust, and everything, I did mention you, and how what you were doing here, is what I wanted to do, and I still didnt think they would send anything at all, from 10th today the 15th of Nov(as there was no delivery date or where it was really coming from nor a tracking number) , holy shnitzel pretzel! HOnestly I thought the package or box anything would have been smaller like literally half the size, they looked so small on the screen, both on here and the website. Enough for 10 of these boards, and 3 are gonna be used to see if I can fix my problem, and maybe even my work problem that will require 3 there as well, 6 already gone... And they are DAMN GOOD quality too! Not the cheap knock offs that one would get with samples, heardy and robust, and damn good case too! Thank you so much GS! I will damn well be ordering other things from them in the future... I hope you get something outa the referrals or something even more! Even after i buy more!
@tejonBiker 4 роки тому
Big advantage to live in the same country as Würth, you can visit the facilities, wonderful kit!!!! very beatiful, I really like this type of advanced content
@TrollFaceTheMan 4 роки тому
Another interesting and informative video, thank you!
@ScienceFunInnovations 4 роки тому
So much information...going to have to watch that one again.
@grins047 4 роки тому
Thank you once again GS.
@f.a3202 4 роки тому
I'm not the earliest one but i always watch your video's no matter what! And as always very good and informative video!!
@greatscottlab 4 роки тому
Thanks for watching :-)
@jorditribo94 4 роки тому
This escalated so quickly. The last time i was here you were blinking LEDs with an Arduino.
@bashaaksema94 4 роки тому
Tnx for this video! Now I know how to build the filters for SMPS and I can use it in my own design
@shokdj1 2 роки тому
I needed this video for so long now
@LightSoySauce 4 роки тому
Thank you for an informative video
@capnthepeafarmer 4 роки тому
Its like you were reading my mind! I was having issues splicing in a BlueTooth adapter to an old stereo and I kept hearing high frequency noise. I was able to rid most of the issues with better shield and wiring, but it still wasn't perfect.
@jameswyatt1304 4 роки тому
Your English is better than my Deutsch ever was, but it was wonderful seeing the other version for a moment. Could you please include a link to your "other" versions of the episodes in your descriptions? I'd love to hear both, frankly as my fluency is gone and I'd like to try a little. Since I grok the content, I expect it'll be more approachable. (Kinda like setting an alternate language on my phone or FB.) Thank you for your wonderful series of very interesting and educational content. tschüß
@pedritoordonez5246 4 роки тому
Thanks for sharing a great video
@0x9066 4 роки тому
Common mode filters are great for canceling unwanted stuff, even on high speed / differential transmission lines (USB, RS-485 etc.) In most cases I don't need them, but from my experience, It's a good practise to preserve some board space for these components.
@w4r10ck4 4 роки тому
Those kits are amazing
@Hex-Mas 4 роки тому
I have this issue with my rpi3. thanks for the video
@naldosilva6198 3 роки тому
Great lesson
@ExplodingWaffle101 4 роки тому
suprisingly educational for a video i thought was mostly gonna be about the sponsored content. good work
@greatscottlab 4 роки тому
Thanks but that is what I always try to do. Content comes first, then everything else.
@TheS1l3ntOne 4 роки тому
Thanks! I've been looking for it for my soldering station. Because it dims the whole room's lighting when I turn it on of off.
@kekecjan 4 роки тому
That was a really interesting topic for today.
@ExStaticBass 3 роки тому
You might be a bit mistaken. In the recent past I have used the head stator from a hard disk, a darlington and MOSFET based amp, and a small speaker to check for EMR in many of the devices I've built. The stator coil on the head armature of a common hard disk is sensitive enough to pick up the flux field and creates a strong enough signal to be usable through a standard microphone preamp. The only issue I've found so far is frequency. As some audio devices filter out anything above 20KHz it's sometimes difficult to accurately find and diagnose such things as back EMC. This is why I would recommend building your own amps because you can omit such filtration. This might make an interesting episode of your series "Build or Buy" because it's been a pretty useful tool for me so far since I built it.
@FindLiberty 4 роки тому
OUTSTANDING
@DarkElectronics 4 роки тому
Thanks for great video! Now I’m making own lab bench power supply, but it has EMI. Also my cheap Chinese power supply has extremely strong EMI. It doesn’t have any EMC filter circuit . So I try to design filter for it and my lab bench power supply with help of this video :)
@javiceres 3 роки тому
Great video Thanks!
@cornevanzyl5880 4 роки тому
Fantastic video man!
@jakeemattidore7601 4 роки тому
Above and beyond what was necessary for emc problems caused by your LED’s. Lol Love this video. Thank you for all your hard work
@Gengh13 4 роки тому
Excellent video, great introduction to the topic. Those EMC kits look really nice, I'm guessing they would be expensive.
@hugovangalen 4 роки тому
Google would reveal that Mouser sells them for €140 a pop. So yeah, a bit expensive for the average electronics enthusiast...
@bitelaserkhalif 2 роки тому
Cheaper way is maybe to gut apart dead branded PSU (usually HP, Dell, famous pre built brands use good PSU which has EMI filter)
@therandomchannel9226 4 роки тому
Awesome! Würth did a great job advertising here
@therandomchannel9226 4 роки тому
@@jkobain if you need any support from AVX, do let me know.
@paulwilson4594 4 роки тому
You are a Legend! I owe my tinkering life to Folks like you who pour their knowledge and energy into great Production and videos that feel like hanging out with a Friend who is a Pro. Thank you
@ziadbrakat5421 4 роки тому
Great topic
@sebastienchadal3937 4 роки тому
Great ! Excellent, well explain
@electroscientist4447 4 роки тому
Great scotti is back love you 😍
@styrishrodrigues 4 роки тому
Hi Great Scott, please make a video on Logic Gates, it would be a great help for me.
@Alexandermichel1994 4 роки тому
Nice Video, i would be interested what kind of issues one would face when dealing with Microcontrollers as the typical hobbyist will not design his own powersupply.
@aaronlow1977 4 роки тому
I didn't know this company made a filter design kit. I need to buy a bunch of these.
@seb_rura Рік тому
Great vid. Question: The shield at 10:30, is it connected to earth through the mains cord?
@electronic7979 4 роки тому
Very helpful video 👍
@bangadu_billa 3 роки тому
Dies ist eine gute Information. Danke Scott
@latonita 4 роки тому
Great Scott, did it help that cheap PSU when you inserted missing capacitors?
@Zanderhawk11 4 роки тому
Ive never been so early to a video! Love you Great Scott!
@greatscottlab 4 роки тому
Thanks for watching :-)
@RahulJC 4 роки тому
First thing to do in the morning! Watch greatscott videos!!
@undefinedman2843 3 роки тому
What a great guy Can you tell me where do you learn these concepts and things
@batuhanyavasoglu5795 8 місяців тому
I have 48v source and I need to supply my ic with that. I wanna add a filter design to my PCB for that 48v dc input. But I am not sure how I am gonna choose the component values. In the video it seems you choose like a general values? Can you help me on that?
@felixruiztorrez5192 4 роки тому
Really good video.
@iamZairul 4 роки тому
Ty for this info video
@thereare4lights137 4 роки тому
Is there a purchasing link for the EMC kit that was sent to you?
@andymouse 4 роки тому
Interesting stuff...cheers.
@qualiamaxwell6305 4 роки тому
best best just the best very informative
@ZeroMass 4 роки тому
I've used those rgb controllers with a small rgb laser setups.. So many uses..
@typeer 3 роки тому
V helpful as usual ty
@cprn. 4 роки тому
On the subject of audio. Did you happen to try to connect helmet intercom to action camera? I've seen you trying an intercom before (BTW that video motivated me to get one, thank you, best riding related decision ever). I have this funky setup where I connect two microphones to the camera via 3.5mm splitter - one is next to the intercom's microphone recording my voice, one is near the right intercom's speaker recording its output. It's okayish and has an advantage of working with every kind of intercom but it's uncomfortable (I have 2 extra microphones and a splitter in my helmet after all) and the sound quality of the other party speaking is "meh". I'd love to know how to match all the signals and actually connect that intercom (both microphone and speaker) to the 3.5mm input of the camera. I'm pretty sure it's not (very) complicated, I just lack knowledge.
@gusstavv 4 роки тому
This was a bit long infomercial... and quite educative btw! Thanks!
@glennotropolis 4 роки тому
I know you are selling me a kit... But I LOVED IT
@laurentthiol 4 роки тому
Amazing, many thanks for this video ;-)
@FaysalKhalashi 4 роки тому
Its another great video .... Thanks
@trevorjaxngwabe7442 4 роки тому
great scott is the best
@fstopspictures8834 4 роки тому
question the circuitry for conditioning between the preamp and adc are din module ?do i need sample and hold and mutiplexer in audio system ?
@simeonminkov6058 4 роки тому
11:58 that guy was using the same laptop as me right now. HP EliteBook 2740p are really cool!
@jigyashukumar2697 4 роки тому
Loved it awesome
@samda7109 4 роки тому
Nice video und gut erklärt.
@JuraganLED 4 роки тому
Thumbs up for having an electromagnetic test chamber as part of your analysis
@misterinfinity4076 4 роки тому
Do a video on ground loop problem
@jannijp7 4 роки тому
It's so scary...i literally encountered that problem two days ago and coom, GreatScott uploads a video to solve the problem ^^
@milanhlavacek6730 4 роки тому
Me too
@mmmm768 4 роки тому
Me too
@mmmm768 4 роки тому
Me too
@mmmm768 4 роки тому
Me too
@mmmm768 4 роки тому
Me too
@user-xm1ts5dt9v Рік тому
What a interesting video!
@electroideas3255 4 роки тому
Nice video!
@fatiheneskuru4332 8 місяців тому
You are the only engineer I know capable of oppressing noises, you are the savior please help us mitigate the EMI and build a better world my lord. 7:26
@bustedparts 4 роки тому
Lucky guy. That wurth setup is expensive! But your getting the best!
@mathistenberken1188 4 роки тому
Wie praktisch, das Video kommt passend zur Projektarbeit über EMV in der Berufsschule. :D
@greatscottlab 4 роки тому
Glück muss man haben ;-)
@chicken_chaser 2 роки тому
how do i check for the Modern EMC design guidelines ?
@luciocancellara4995 4 роки тому
So I've got led driving day lights on my van, now my radio fm and dab signal is is rubbish! Got some ferrite cores but where's best to fit them on leds cables or back of the radio areial cable or both ?
@PeteOHair 4 роки тому
Howdy Scott, I wondered if you needed to shield from 50Hz hum in audio equipment and have solution for that? Idea for future video ;-) Thanks
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