You made a slight error: Between two traces in a PCB, the dielectric constant is not really 1. The volume of space between the traces that gets used by the capacitance involves some "fringing" making it use some space that is inside the PCB. It doesn't change your argument but if you measure on a PCB you will see the capacitance is a bit higher than you expect.
you're absolutely right! I was doubting weather I should go into that level of detail, because, as you said, it does not change the argument. Well spotted! :-)
As a teacher starting to teach PCB design to high school students (without an electrical engineering background), these and Phils Labs videos are amazing. Thank you so much! Please send me the checklist! Thanks!
Thank you. This was a clear explanation of issues with ground-planes which presented a complex issue making it relatively intuitive. Sounds like there are a lot more goodies in your checklist. I'd love a copy.
This is not just a radio freq thing, I build valve amps for hifi and guitar. For decades I’ve seen people cover the insides of guitars and amps with foil tape which is ungrounded and it picks up so much noise, so then they paint everything with graphite paint and remove all the top and bottom end of the freq range! Then they install active pickups [facepalm] I apply the same practices as you and have gorgeous sounding guitars and hifi :o) And for anyone reading this, I have decades of experience but still watch videos like and read books this as a refresher, its good practice.
Indeed, I know, I'm also a long time audio builder (30 years). My experience is that a single groundplane greatly improves sound. Don't even separate left and right grounds, the current will not run in the circuitry from the other channels since that is the long way around which return current will never take. So you're totally safe to do that. Also never separate digital and analog grounds in a DAC, you'll run common mode interference current right through your da converter chip which is not good either. They have separate analog and digital ground pins, but on the actual die, they are connected.
SUBSCRIBED!!! I am a retired electrical engineer and did mostly digital but have dedicated my remaining heartbeats to attempting to master RF design as best I can. So, I enjoyed your video very much and appreciate the modeling and measurements that you made. Also, looks like this is a new channel so I hope you do mainly RF (at least for me) Many years ago, I got pushed into designing a 2-layer RF PCB. So, I just put the GP on the top; circuit traces on the bottom and used TH ccomponents. The board worked amazingly fine and later I learned that this was the correct way to do it, In my mind, it was the only way to get a continuous and contiguous GP! Anyway, looking forward to further videos... 73!
Thanks a lot, hope I'm improving your 'retirement experience' :-D You can get the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans Oh, my 3rd video is out, all on RF! Hope you enjoy that one as well.
Bravo; very good explanations! In the 1970’s and 1980’s as a hobbyist I had several friends that were printed circuit board designers. They said that designing pcb’s was an ART. And they prided themselves on designing their pcb’s to look aesthetically pleasing. They would arrange all the resistor in nice neet rows, Then they would blame the circuit routing software on why their circuit boards didn’t work!
I definitely appreciate that you are sharing your experiences that you remember and Learned from. Thank you. Learning is about making mistakes; recognizing and learning from them and then pass on that knowledge to those that are willing to listen and learn. Those that were taught to stay away from FIRE never had a good barbecue!
No tengo idea que camino vas a tomar con electronica de RF.........pero simplemente por ser RF te voy a seguir. Hay tan poco material de RF bien explicado que tu canal se vuelve valioso.
Hi Hans, you started a channel to educate people. Cool! Nice to see that you share some of your experience 👍🏻 Regards, Ron (now lecturing engineering at NHL Stenden)
Hey Ron, leuk te horen! Ik ga alles proberen te delen wat ik geleerd heb sinds ik op mijn 8ste begonnen ben met electronica.... kan een jaartje of wat gaan duren :-) Groetjes, Hans
Excellent video that combines theory and practice, thanks a lot! As a student, I've been told many times by many different people that the integrity of the ground plane is very important when designing high-frequency circuits, but I never really understood it from a theoretical aspect (because I thought it's something that is really hard to analyze without the help of computer simulation). This video gives me the courage and shows me the correct route to actually analyze such problems quantitatively. Many thanks! "Send me the Checklist"
Thanks! You know the thing is: it's not hard at all, it's just that almost noone understands it fundamentally so they cannot explain it correctly. This happens to be one of my all time favourite subjects :-) so I can show how easy it really is. In the next video I'll show some examples of where it get's a little harder to quantify what is best on a 2 layer, but I also have a solution for those 2 layers.
Hello Hans, you placed some interesting videos. As a fellow electronics designer it is always good to learn new or already, some times forgotten, rules. Looking forward to read and use your checklist. Please send me the checklist.
Hi Hans, please send me the checklist. Well done on making the issues clear and easily understandable. Ive been a tech for 40+ years and found it valuable.
So rare to see this level of detail and explanation to such a vital and intrinsic part of our daily lives, electronic design. I was due to do some LVDS work and was somewhat nervous of board layout challenges. A copy of your checklist would be really welcome.....Thank you
8:27 Not important, but to my eye the dielectric constant between the two lateral traces is closer to 2 than to 1 due to the presence of the FR4 that is between them for ~half the E field volume. Great video!
You are first that I find talking about this subject .You also really know how to use nanoVNA and TinySA .An analytical video about those tools would be useful . Also a practical example for, maybe, an attenuator 10-20-40 dB on a 2 layer PCB would also be interesting. There are available on ebay , but are they really good ???
this is such a clear explanation of the importance of ground planes. focusing on the current path in your explanations really helped my understanding. i know you just started uploading on youtube but you deserve a lot more attention :) also, send me the checklist
Dear Hans, Nice video. You did a great job of backing up the theory with actual measurements with a VNA. As an electronic consultant myself I can't count the number of times I was able to fix client issues simply by having a clean, unbroken ground plane. You have awesome skills in explaining things nicely. Good Luck with your new channel! I am sure it will be a great one going ahead in practical electronics.
Hi, thanks a lot for your very positive reply :-) This was my first video and the plan is to do this at least for 1 year and share everything I've learned about electronics since I was 8 years old (that's when I started, that was 42 years ago). This will probably take more than a year ;-)
Coming back to your remark that you solved a lot of issues fixing a ground plane: It's really amazing how underestimated / misunderstood the importance of ground planes is, that's why I wanted to start with this one. Even good electronics engineers often underestimate this one.
Wow, really good information, thank you for putting this series on TH-cam! I’d love to look over your checklist and add the items I’m missing! Please send it over!
Thank you for the very clear explanation of the return path, how an obstruction affects it, and the impedance graph illustrations. And please send me the checklist.
At the end of the video, hammering ground vias to box in the TL is the only practical approach unless it's a specialised part or test fixture, because we can't afford to lose an inch perimeter around every RF path, we need that board space.
Thank you for that video. Very informative. You said „by placing the solder blob just under the transmission line you proved that the return current flows directly only under the line“. Strictly speaking that is not proven here, since there are other explanations that might explain the measured result. E.g. if you see the obstruction as an antenna which you have tapped in the middle with the solder blob, this would explain the result too. What might be interesting to further prove your statement would be to move the solder blob up or down in steps and compare the results. Again: really well done! Thanks! ☺
Great idea indeed, I thought about moving the blob as well or asymetrically, to prove it will take the shortest route in that case. Maybe I'll make a short video on this. Or maybe I make a 'viewer reqeust' video in this playlist, I've had some other interesting remarks as well which I could easily address with a measurement.
Subscribed. Easy. This was really good. If you explained the principles in your book half as good as you did in the video then I'm assuming the book would be twice as long. Which I think will make me a quarter inch shorter somehow, but I"ll risk it if you have any books left. I would greatly appreciate a book please. Thanks for these videos.
Hi Hans, very nice video! Many of us have learned the hard way what happens when the ground is badly designed in a PCB. Please send me the checklist. Thank you!
Thanks for the encouragement! Theory is very nice but I truly believe something when I see it for real :-) You can download it here: www.hans-rosenberg.com/checklist Best regards, Hans
Thanks a lot, nice to see that female engineers do exist :-) Links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
Always great for my ego to hear that someone thinks I'm smart :-) I cannot say no to please :-D You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans
Thanks for the enthusiasm! This brings up a sensitive point with me, I'm really really disappointed with my electronics education. All they taught me was insanely complicated maths, and 1% of electronics. And I never never needed that complicated stuff. High school maths is all you need to develop the most complicated circuits if you understand what you're doing and use a simulator for the calculations. You can download the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans
Send me the checklist. I really appreciate this video; using the lessons here to clean up a digital design that is about to go to production. Thank you.
For your digital design: Make sure you place the decoupling caps right up close to the power pins, and make sure to put the via to ground as close as possible as well. Be careful that your digital supply traces are wide enough not to cause voltage drop. If it's a low voltage design (with a 1V supply for instance) the drop across these traces can really ruin the operation of that digital core. The current is usually high there due to the low voltage, which means you easily get a high voltage drop. This means the speed of the digital core reduces beyond tolerable levels. I almost fell for this trap once with an FPGA board, luckily I did a last minute check on that and was quite shocked :-) The nicest thing is off course a power plane which you can treat in exactly the same way as a ground plane, but that takes up another layer and is only needed with high speed boards with very high signal integrity demands.
I mostly do audio-frequency work now that I've retired, but I used to do microwave spectroscopy and I like keeping up with the advances in technology; as please send me the checklist too!
Thank you for your detailed explainations, It gives us a very good grounding in this subject..... Oh, also, could you please send me a copy of your checklist. Keep the information coming
Excellent video. The lenght and the depth of your presentation perfect. I would have one recommendation, please provide link in your description on the various tools that you are using like te micro strip loss calculations. Please continue your nice work.
Thanks a lot. I'm nervous to put links to third parties with respect to copyright issues. Even putting that thing in my video feels scary. The legal rules there seem to be a mess for an engineer like me. However, I always just google 'microstrip calculator' and you get a whole list of em :-)
nice tut! I was struggling with ground problems many years ago in audio amplifiers. I wasn't quite sure that signal ground and power ground position on the pcb was important...
Thanks, I may not have been clear enough, you should always only have a single ground plane. You can have planes on more layers, but the one that will carry the current will be the one closest to the signal layer and that one should not have obstructions. Making 2 ground planes is a bad idea. 2 video's from now I'll go into that with details why that is. I always used to make multiple ground planes in my audio dacs (I designed 6 over period of 30 years) but ever since I switched to single ground planes the audio improved quite a lot. Best regards, Hans
@@HansRosenberg74 Thanks a lot Hans. I was being unclear in previous comment, my point was the placement of audio signal ground and power supply ground (the point on the pcb which each of those would be soldered) there was one ground of course, but signal ground from the pre-amp stage and power amplifier stage (i.e a TDA2030 chip) was a quite challenging task, and leading to all kinds of noise. I can't recall correctly if it was better to keep those close or farther apart on the ground plane. tysm for your attention btw! +1sub!
You're welcome, I plan to do this for 1 year and then see if this is a way of living or not :-) You can get it here: www.hans-rosenberg.com/checklist BR, Hans
ESD is an interesting subject, which is a single strike event of 0.8ns duration (>1GHz) and very high voltage which causes interference and damage to circuits. Its not always possible to place ESD protection extrememely close to connector pins, so tracking needs to have uninterrupted ground planes like you mention. It would be interesting to see if there are things to avoid, or better schemes, to defend against these events!
I undertand capacitance but i dont understand impedance. Doesnt the return current follow under the signal trace because charges are attracted and because of the slight imbalance of charges under that trace, like capacitively coupled?
Impedance basically the complex variant of resistance. So an impedance has a real and imaginary part. The real part is resistive, the imaginary part is either inductive or capacitive. The path directly under the trace has the lowest overall impedance, that is why the current flows there. Field lines are definately present between the signal trace and the ground plane, but it is more a result of the lowest impedance path I think. Now however we're getting into really fundamental physics and I'm unfortunately not a expert at that. I understand what happens on a board due to my long experience, but I lack the deep knowledge of physics.
thank you very much for the super helpful practical video!
Great to hear!
You made a slight error: Between two traces in a PCB, the dielectric constant is not really 1. The volume of space between the traces that gets used by the capacitance involves some "fringing" making it use some space that is inside the PCB. It doesn't change your argument but if you measure on a PCB you will see the capacitance is a bit higher than you expect.
you're absolutely right! I was doubting weather I should go into that level of detail, because, as you said, it does not change the argument. Well spotted! :-)
Subscribed 😅
Happy to find both of your channels as I'm slowly learning PCB design
How do I get a copy of your book?
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Send me the checklist
As a teacher starting to teach PCB design to high school students (without an electrical engineering background), these and Phils Labs videos are amazing. Thank you so much!
Please send me the checklist! Thanks!
Awesome! This is so well made and practical. Thank you for sharing your knowledge!
You're very welcome!
Thank you. This was a clear explanation of issues with ground-planes which presented a complex issue making it relatively intuitive. Sounds like there are a lot more goodies in your checklist. I'd love a copy.
You're welcome
You can get the checklist here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Hans, what a fantastic video, thank you very much for all your efforts I've learnt a lot. 10/10 from me.
Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
Hans, your Electronic PD Checklist is spot on, and your videos are very informative. Thank you for sharing your knowledge and experience!
Many thanks!
This is not just a radio freq thing, I build valve amps for hifi and guitar. For decades I’ve seen people cover the insides of guitars and amps with foil tape which is ungrounded and it picks up so much noise, so then they paint everything with graphite paint and remove all the top and bottom end of the freq range! Then they install active pickups [facepalm]
I apply the same practices as you and have gorgeous sounding guitars and hifi :o)
And for anyone reading this, I have decades of experience but still watch videos like and read books this as a refresher, its good practice.
Indeed, I know, I'm also a long time audio builder (30 years). My experience is that a single groundplane greatly improves sound. Don't even separate left and right grounds, the current will not run in the circuitry from the other channels since that is the long way around which return current will never take. So you're totally safe to do that. Also never separate digital and analog grounds in a DAC, you'll run common mode interference current right through your da converter chip which is not good either. They have separate analog and digital ground pins, but on the actual die, they are connected.
I'd like the checklist too, please. I was really surprised how well the solder blob and complete ground plane plots lined up! Great video, thank you!
Yeah, that blew me away as well, the blob can be even smaller apparently!
You can get it here
www.hans-rosenberg.com/checklist
BR, Hans
A great series of videos! I would appreciate receiving your checklist. Thank you!
thanks,
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Send me the Checklist
Thank you for the excellent, simple, and straight forward explanation
Hi, the link is in the description. Sorry for the late reply, I was on the road for 2 days. Best regard, Hans
SUBSCRIBED!!!
I am a retired electrical engineer and did mostly digital but have dedicated my remaining heartbeats to attempting to master RF design as best I can.
So, I enjoyed your video very much and appreciate the modeling and measurements that you made.
Also, looks like this is a new channel so I hope you do mainly RF (at least for me)
Many years ago, I got pushed into designing a 2-layer RF PCB. So, I just put the GP on the top; circuit traces on the bottom and used TH ccomponents.
The board worked amazingly fine and later I learned that this was the correct way to do it, In my mind, it was the only way to get a continuous and contiguous GP!
Anyway, looking forward to further videos... 73!
Thanks a lot, hope I'm improving your 'retirement experience' :-D
You can get the checklist here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Oh, my 3rd video is out, all on RF! Hope you enjoy that one as well.
Bravo; very good explanations! In the 1970’s and 1980’s as a hobbyist I had several friends that were printed circuit board designers. They said that designing pcb’s was an ART. And they prided themselves on designing their pcb’s to look aesthetically pleasing. They would arrange all the resistor in nice neet rows, Then they would blame the circuit routing software on why their circuit boards didn’t work!
Hahaha, great story, I also think it's an art, just another kind of art :-D
I definitely appreciate that you are sharing your experiences that you remember and Learned from. Thank you. Learning is about making mistakes; recognizing and learning from them and then pass on that knowledge to those that are willing to listen and learn. Those that were taught to stay away from FIRE never had a good barbecue!
Haha, like the BBQ remark! Thanks!
Thank you for making this easy to understand with concise and practical explanation. Please send me the checklist.
Hi, the link is in the description. Sorry for the late reply, I was on the road for 2 days. Best regard, Hans
No tengo idea que camino vas a tomar con electronica de RF.........pero simplemente por ser RF te voy a seguir. Hay tan poco material de RF bien explicado que tu canal se vuelve valioso.
Sorry, my spanish or portuguese is a little rusty :-) (as in, nonexistant)
Hi Hans, you started a channel to educate people. Cool! Nice to see that you share some of your experience 👍🏻
Regards, Ron (now lecturing engineering at NHL Stenden)
Hey Ron, leuk te horen! Ik ga alles proberen te delen wat ik geleerd heb sinds ik op mijn 8ste begonnen ben met electronica.... kan een jaartje of wat gaan duren :-)
Groetjes,
Hans
Nice experimental part connects the dots with a theory, well done.
thanks!
Excellent video that combines theory and practice, thanks a lot! As a student, I've been told many times by many different people that the integrity of the ground plane is very important when designing high-frequency circuits, but I never really understood it from a theoretical aspect (because I thought it's something that is really hard to analyze without the help of computer simulation). This video gives me the courage and shows me the correct route to actually analyze such problems quantitatively. Many thanks!
"Send me the Checklist"
Thanks! You know the thing is: it's not hard at all, it's just that almost noone understands it fundamentally so they cannot explain it correctly. This happens to be one of my all time favourite subjects :-) so I can show how easy it really is. In the next video I'll show some examples of where it get's a little harder to quantify what is best on a 2 layer, but I also have a solution for those 2 layers.
Hello Hans, you placed some interesting videos. As a fellow electronics designer it is always good to learn new or already, some times forgotten, rules. Looking forward to read and use your checklist. Please send me the checklist.
Thanks a lot, this is great to hear from a 'colleague' :-)
Here it is:
www.hans-rosenberg.com/checklist
Best regards, Hans
Hi Hans, please send me the checklist. Well done on making the issues clear and easily understandable. Ive been a tech for 40+ years and found it valuable.
Thanks a lot!
You can get the checklist here:
www.hans-rosenberg.com/checklist
Best regards, Hans
So rare to see this level of detail and explanation to such a vital and intrinsic part of our daily lives, electronic design. I was due to do some LVDS work and was somewhat nervous of board layout challenges. A copy of your checklist would be really welcome.....Thank you
You're welcome.
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Thank you Hans, that was great - nice and visual and clear!
Thanks!
8:27 Not important, but to my eye the dielectric constant between the two lateral traces is closer to 2 than to 1 due to the presence of the FR4 that is between them for ~half the E field volume.
Great video!
Thank you, You're correct, I was thinking about this when I recorded the video, I didn't want to go that deep and maybe cause a bit of confusion.
I would love the checklist! Great vid
You're welcome.
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
You are first that I find talking about this subject .You also really know how to use nanoVNA and TinySA .An analytical video about those tools would be useful . Also a practical example for, maybe, an attenuator 10-20-40 dB on a 2 layer PCB would also be interesting. There are available on ebay , but are they really good ???
I've added your ideas to the list!
this is such a clear explanation of the importance of ground planes. focusing on the current path in your explanations really helped my understanding. i know you just started uploading on youtube but you deserve a lot more attention :)
also, send me the checklist
Thanks a lot for the encouragement, you can download the checklist here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Thank you for these practical rules for the mysterious world of RF! Send met the checklist
Link is in the description. Best regard, Hans
Very helpful video series Hans!
Please send me your checklist.
Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
Dear Hans, Nice video. You did a great job of backing up the theory with actual measurements with a VNA. As an electronic consultant myself I can't count the number of times I was able to fix client issues simply by having a clean, unbroken ground plane. You have awesome skills in explaining things nicely. Good Luck with your new channel! I am sure it will be a great one going ahead in practical electronics.
Hi, thanks a lot for your very positive reply :-) This was my first video and the plan is to do this at least for 1 year and share everything I've learned about electronics since I was 8 years old (that's when I started, that was 42 years ago). This will probably take more than a year ;-)
Coming back to your remark that you solved a lot of issues fixing a ground plane: It's really amazing how underestimated / misunderstood the importance of ground planes is, that's why I wanted to start with this one. Even good electronics engineers often underestimate this one.
Very nice video! Interested in the checklist too.
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Wow, really good information, thank you for putting this series on TH-cam! I’d love to look over your checklist and add the items I’m missing! Please send it over!
You're welcome.
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
First of all, thumbs up for the very crisp and clear video. It would be much appreciated if you could send me the checklist. Thanks.
thanks a lot. The link is in the description. Best regards, Hans
Thank you for the very clear explanation of the return path, how an obstruction affects it, and the impedance graph illustrations. And please send me the checklist.
I cannot say no to please :-D
You can get it here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Thank you Hans! Already downloaded.
Enjoy!
Send me the checklist.
Amazing videos Hans. I feel like im going to learn a lot from you. Thank you for starting up your channel!
Thanks a lot, you can download the checklist here: www.hans-rosenberg.com/checklist
Best regards,
Hans
I looked at your channel and you have a car channel. Are you into electronics as a hobby or are you an electronics engineer as well?
Thank you very much, this is very awesome and clear explanation.
you're welcome
🎉 suscribed
I'm glad to meet such a level of exactfullness in a radio field
Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
Thank you for the informative video i really benifit from it. I hope you do more electronics video in the future
Thank you, I will
At the end of the video, hammering ground vias to box in the TL is the only practical approach unless it's a specialised part or test fixture, because we can't afford to lose an inch perimeter around every RF path, we need that board space.
that should work well, it's on the list for the next board already
Thank you for that video. Very informative.
You said „by placing the solder blob just under the transmission line you proved that the return current flows directly only under the line“.
Strictly speaking that is not proven here, since there are other explanations that might explain the measured result. E.g. if you see the obstruction as an antenna which you have tapped in the middle with the solder blob, this would explain the result too. What might be interesting to further prove your statement would be to move the solder blob up or down in steps and compare the results.
Again: really well done! Thanks! ☺
Great idea indeed, I thought about moving the blob as well or asymetrically, to prove it will take the shortest route in that case. Maybe I'll make a short video on this. Or maybe I make a 'viewer reqeust' video in this playlist, I've had some other interesting remarks as well which I could easily address with a measurement.
Thank you so much for the checklist! If only we could get an anthology from you, curious marc, and Mr. Carlson!
Thank you, Ok, those are some big names you're dropping, would be great if I can join them :-)
Clear and enjoyable video. Thanks!
Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
I downloaded and read the checklist. It's helpful! Thank you for sharing your years of wisdom. Looking forward to seeing your channel grow!
Very good explanation and experimental data 👍
Thanks a lot
Thanks a lot professor ❤
You are very welcome
Subscribed. Easy. This was really good. If you explained the principles in your book half as good as you did in the video then I'm assuming the book would be twice as long. Which I think will make me a quarter inch shorter somehow, but I"ll risk it if you have any books left. I would greatly appreciate a book please. Thanks for these videos.
Thanks a lot. Link is in the description. Best regards, Hans
Hi Hans, very nice video! Many of us have learned the hard way what happens when the ground is badly designed in a PCB. Please send me the checklist. Thank you!
Thanks!
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
First of all, thanks for the great examples and real measurements - a really tangible way to show the point. Second, please send me the checklist :)
Thanks for the encouragement! Theory is very nice but I truly believe something when I see it for real :-)
You can download it here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Thanks for the video!
you're welcome
Thanks for the video, it's a lot of help.👏
Send me the checklist!🎉
Thanks a lot, nice to see that female engineers do exist :-) Links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
You're a smart guy, Hans. Well presented. Please send me a copy of the checklist.
Always great for my ego to hear that someone thinks I'm smart :-)
I cannot say no to please :-D
You can get it here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Great video! Very helpful. Liked & subscribed😊. I'm interested in that checklist!!!
Thanks a lot! Link is in the description. Best regards, Hans
Thank you for the videos and the Checklist.
Glad you like them!
Excellent video, tank you very much!
You are welcome!
Thank you for making these videos! Please send me the check list
You're welcome, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
Send me the checklist. Thank you so much for this video and sharing your experience.
Hi, the link is in the description. Sorry for the late reply, I was on the road for 2 days. Best regard, Hans
Great Video! All the issues they DONT teach in school! You got a subscription for this great work of teaching! ;-)
Thanks for the enthusiasm! This brings up a sensitive point with me, I'm really really disappointed with my electronics education. All they taught me was insanely complicated maths, and 1% of electronics. And I never never needed that complicated stuff. High school maths is all you need to develop the most complicated circuits if you understand what you're doing and use a simulator for the calculations.
You can download the checklist here: www.hans-rosenberg.com/checklist
Best regards,
Hans
Very neat and helpful video, thanks for your efforts to make such a practical and insightful material.
Glad it was helpful!
Send me the checklist.
I really appreciate this video; using the lessons here to clean up a digital design that is about to go to production. Thank you.
For your digital design: Make sure you place the decoupling caps right up close to the power pins, and make sure to put the via to ground as close as possible as well. Be careful that your digital supply traces are wide enough not to cause voltage drop. If it's a low voltage design (with a 1V supply for instance) the drop across these traces can really ruin the operation of that digital core. The current is usually high there due to the low voltage, which means you easily get a high voltage drop. This means the speed of the digital core reduces beyond tolerable levels. I almost fell for this trap once with an FPGA board, luckily I did a last minute check on that and was quite shocked :-) The nicest thing is off course a power plane which you can treat in exactly the same way as a ground plane, but that takes up another layer and is only needed with high speed boards with very high signal integrity demands.
I mostly do audio-frequency work now that I've retired, but I used to do microwave spectroscopy and I like keeping up with the advances in technology; as please send me the checklist too!
Nice to hear, I've been building audio circuits for 30 years. Link is in the description, best regards, Hans
Please send me the checklist.
Excellent explanation, I hope my first mixed signal PCB design will work well with this input!
I'm 100% sure it will help!
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Thank you for your detailed explainations, It gives us a very good grounding in this subject..... Oh, also, could you please send me a copy of your checklist. Keep the information coming
Thanks,
You can get the checklist here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Thanks for sharing your experience!
You're welcome!
Great video, really well explained.
thanks
Very cool. Looking forward to your other videos.
Thanks!
Thank Hans, very good job, indeed
you're welcome
Send met the checklist, please
Just kidding, I already found the link in the description, thank you!
you're welcome
please send me the checklist. Great video - perfect mix of theory and practical with excellent examples.
Thanks a lot. Link is in the description. Best regards, Hans
Hi Hans, wonderfully explained, I currently work for Texas Instruments and your checklist would be quite helpful, please do share.
Hi, I love TI products, I've used quite a few in the past. Link is in the description, best regards, Hans
Excellent video. The lenght and the depth of your presentation perfect. I would have one recommendation, please provide link in your description on the various tools that you are using like te micro strip loss calculations. Please continue your nice work.
Thanks a lot. I'm nervous to put links to third parties with respect to copyright issues. Even putting that thing in my video feels scary. The legal rules there seem to be a mess for an engineer like me. However, I always just google 'microstrip calculator' and you get a whole list of em :-)
Send me your checklist please. Your video explains the ground plane issues very well. Thanks!
Link is in the description! Best regards, Hans.
Send me the checklist, please. Thank you for making this video. Your explanation and tips/rules of thumb are very helpful.
You're welcome!
You can download it here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Amazing the affect of floating planes.
Send me the checklist!
Link is in the description, best regards, Hans
Thank you Hans. I would very much appreciate a copy of the checklist. Thank you.
You can find the link in the description. Best regards, Hans
nice tut! I was struggling with ground problems many years ago in audio amplifiers. I wasn't quite sure that signal ground and power ground position on the pcb was important...
Thanks, I may not have been clear enough, you should always only have a single ground plane. You can have planes on more layers, but the one that will carry the current will be the one closest to the signal layer and that one should not have obstructions. Making 2 ground planes is a bad idea. 2 video's from now I'll go into that with details why that is. I always used to make multiple ground planes in my audio dacs (I designed 6 over period of 30 years) but ever since I switched to single ground planes the audio improved quite a lot.
Best regards,
Hans
@@HansRosenberg74 Thanks a lot Hans. I was being unclear in previous comment, my point was the placement of audio signal ground and power supply ground (the point on the pcb which each of those would be soldered) there was one ground of course, but signal ground from the pre-amp stage and power amplifier stage (i.e a TDA2030 chip) was a quite challenging task, and leading to all kinds of noise. I can't recall correctly if it was better to keep those close or farther apart on the ground plane. tysm for your attention btw! +1sub!
Please send me the checklist! I am really looking forward. Please keep the videos coming. I am learning a lot. Thank you
You're welcome, I plan to do this for 1 year and then see if this is a way of living or not :-)
You can get it here:
www.hans-rosenberg.com/checklist
BR, Hans
Wery imteresting and clearly presented. Good job! And please send me the list!
Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans
I really enjoyed your video, thank you very very much!!!
you're welcome!
Please send me the checklist
Great video! There is no better way to explain board design than using real life PCB
Thanks!
You can get it here:
www.hans-rosenberg.com/checklist
Best regards, Hans
really cool explanation! thank you
thanks!
Fantastic video. Please send me the checklist. Thank you!
Link is in the description. Thanks for the encouragement. Hans
Send me the checklist
I'm an EE student and I'm very thankful for such videos like these as well as for the checklist. Thank you!
You're welcome. Link is in the description. Best regards, Hans
Answered a lot of questions. I would love a copy of the checklist.
Great, always happy to find out I'm not causing more questions :-D
You can get it here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Hell yeah homie posting the good stuff 🥀💯
will do for 1 year, and then see if I can make a living out of this :-)
It would be interesting to see the graph for an off-centre solder blob at 11:29
You're not the first to ask, I think I'll do a viewer request video for this video and for part 4.
Very nice series of videos that are packed with great insight. Please send me your check list
Link is in the description. And thanks!
Great video and invaluable information..
Please keep sharing your experiences.. Please send the checklist if possible..
Thanks
It's possible :-)
You can get the checklist here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Please send me the checklist. A really excellent description and demonstration. Thank you!
Thanks a lot.
Here it is:
www.hans-rosenberg.com/checklist
Best regards, Hans
Please, send me the checklist! Thanks in advance! Great video!
thanks,
You can get it here:
www.hans-rosenberg.com/checklist
best regards,
Hans
Great video, you remind me of the RF analog/digital guru on our team a long time ago. Send me the checklist.
Haha, Guru, I like that one, lol. You can get the checklist at www.hans-rosenberg.com/checklist
best regards,
Hans
So cool ! I really like this king of knowledge
You're welcome!
ESD is an interesting subject, which is a single strike event of 0.8ns duration (>1GHz) and very high voltage which causes interference and damage to circuits. Its not always possible to place ESD protection extrememely close to connector pins, so tracking needs to have uninterrupted ground planes like you mention. It would be interesting to see if there are things to avoid, or better schemes, to defend against these events!
It's already on my list, I used to be doing a lot with ESD prevention and I still have all my own manuals :-)
Thank you for sharing this. Great stuff! If you have any spare checklists, please send one to me too.
Thanks a lot for the compliments, you can download the checklist here:
www.hans-rosenberg.com/checklist
Best regards,
Hans
Great stuff! :) Keep it up!
Thanks! I plan to keep going at this for a year at least :-)
I undertand capacitance but i dont understand impedance. Doesnt the return current follow under the signal trace because charges are attracted and because of the slight imbalance of charges under that trace, like capacitively coupled?
Impedance basically the complex variant of resistance. So an impedance has a real and imaginary part. The real part is resistive, the imaginary part is either inductive or capacitive. The path directly under the trace has the lowest overall impedance, that is why the current flows there. Field lines are definately present between the signal trace and the ground plane, but it is more a result of the lowest impedance path I think. Now however we're getting into really fundamental physics and I'm unfortunately not a expert at that. I understand what happens on a board due to my long experience, but I lack the deep knowledge of physics.
Great job with a great explanation. Please send me the checklist. Lou
Thanks a lot!
You can get the checklist here:
www.hans-rosenberg.com/checklist
Best regards, Hans
Great, and right on time! Thank you.
You are so welcome!
Send me the checklist.
As a professional, I am really grateful for your work.
Thanks!
You can get it here:
www.hans-rosenberg.com/checklist
BR, Hans
Excellent explanatory video 👍 - please send me the checklist.
Thanks! Here you can get it:
www.hans-rosenberg.com/checklist
Best regards, Hans
amazing explaintion. please contine with this series 😊
I'll keep doing so for at least a year, covering all kinds of subjects.