Brilliant mini-lecture ... the perfect blend of theory (simplified for us hobbyists) and real-world electronics-board practical. It HAD to be good ... there was an oscilloscope in it!!!!
3 vids later i found you Bruce. The other 3 did nothing for me but your vid gave me the info i required. Thank you so much. Your my favourite. Dont forget the antenna on the tx, that cracked me up.
After searching through tens of websites for a good explanation of capacitors, I could not find anything worth reading until I came here... Thank you!!
Finally a practical explanation of capacitors without just going through the theory and physics - suddenly makes sense for one without an electrical background.
When I recently became interested in quad copters, I was basically looking for copper, but with your channel Bruce, I found gold! I'll take your videos as main guide for builds and on top of it all I get to learn so much about electronics. Keep up with good work, I wish you all the best!
Good info! Can you make another video but go beyond the basics (advanced concepts: charge sharing among capacitors). Really appreciate it! Keep up the great videos!
Thanks Bruce! I always view your lessons as a capacitor discharging it's energy to all of us and that charges us up. Sorry, it's very late here, must go to bed.......
Bruce, You are one hell of a teacher from RC, Drones and this... what other channels do you have?... This is Brilliant. Your knowledge seems to go on & on... But as always... Humble with it. My respect goes to you.
Always great! Been involved in electronics as a hobby for many years and still learned some things. For next week when your talking about accelerometers and autopilots can you please explain on the old NAZA why the GPS in relation (distance) to the flight controller is so important. Your a great goto channel.
Good explanations as always Bruce " _sometimes magic smoke will come out_ " With either a lack of skill and practice, or conversely a lot of skill and practice, you can sometimes get more than just magic smoke. Especially with electrolytic can types :D
Bruce, great explanation of what can be a very complex subject. Coming from a mechanical maintenance background I have a very basic knowledge of electronics by comparing electrons to hydraulic fluid. It's easy for me to visualize fluid flowing where I want it to go and what I need it to do. Caps I visualize as accumulators ( a surge tank in a home steam system is an accumulator ) to smooth the flow. Don't know why my brain works better with fluid, but at 66 I have given up on tiny really really fast bits of noseeum stuff that hurts if you grab it. Ruins cutters also!
Thanks Bruce, your lecture helped me understand my ebike, and the charging system, and the capacitors inside the system....always enlightening my electrical knowledge.... You sir....
THANKS BRUCE! Sorry for yelling but I want everyone to know how helpful you (accent) arrre. I've always struggled with understanding electronics, not anymore thanks to you! I'm with Ground Control RC, I too CAN NOT wait for your next class. Have you done a video about wiring an ESC and these brushless sensored/sensorless motors, if not may I request that as a future tutorial? Or multiple separate classes, I assume trying to combine all that into one video would be the longest video ever.
I'm not in the RC world. I come here for education. I think there would be a lot more engineers in this world if there were teachers like him. Does he have a "series" on electrical components or do you just have to search through and find gems like this one and the one on Ohms Law?
Just in time for L2 Physics tomorrow! Great stuff. It's tricky talking about capacitors being "charged" because it can have two meanings. One is that it is "charged with energy" - ready to do work. The other is "charged with electrons" - which is confusing because that only applies to one plate. The total number of electrons in a charged and discharged capacitor is, of course, the same. They have just moved around so their distribution on the plates has changed. So capacitors do not store charge, strictly speaking, but separation of charge. Is that more helpful? Not sure really. Your way of just considering each side by itself is probably more intuitive which is good.
another analogy would be that a capacitor is an electron-spring. soo much voltage? the spring compresses. too little voltage? the spring relaxes. a short circuit? the spring.... well, yeah, I'm sure you get the idea :p it's like the shock absorber of a car.
Out of passing interest: the hydraulic equivalent of a capacitor is the 'Accumulator'. Also, an interesting read is the Wikipedia 'Capacitor Plague' entry. It goes deep into faulty electrolytic caps, includes loads of gory bad cap photos and harrowing tales of how stolen electrolyte formulas & industrial espionage had us living in bad cap hell for all those years.
I remember the capacitor plague well... I worked as an elementary school technician at the time, and we had Dell GX270 PCs dropping like flies. I don’t recall how many mother boards and power supplies I replaced under warranty. Finally Dell stopped supporting the things. I understand that this little affair cost Dell (and others, I’m sure) very dearly.
Makes total sense while having me laughing at the same time. Thank you very much for these videos! Now ... i'm off to fetch my spanking new multimeter! :D
Speaking of oscilloscopes, could you do a video on the uses of oscilloscopes in rc applications, what oscilloscopes you recommend for this hobby, how oscilloscopes are used and such?
Thank you for this great tutorial which is very much appreciated. What kind of capacitors are used for voltage protection on a RC circuit? In other words, what kind of capacitors do "glitch busters" utilize? Are they also Low ESR or not?
Reminds me of the old TV repair shop trick, if you had somebody snooping around the bench that didn't belong there, the technician would set a charged capacitor where they could get to it, invariably they would pick it up, sometimes you would hear a little cry...OUCH! And the person would find something else to do! LOL
Super video! Can you tell me if there is a rule of thumb or a way to compute the appropriate value for an electrolytic capacitor across the battery terminals on a quadcopter? Thank you
Missed the one where you put a high value resistor parallel to a cap. Supposedly it drains the cap slowly, so if it's extra-spicy you don't find out the hard way. And the cap-resistor combo, isn't that combined with a relay for a turn-signal blinker?
34:30 - electrolytics per Esc - yup it’s old school but it’s coming back into use now especially with people using 6S. 6S has nasty voltage spikes as you can imagine!
I have two capacitors rated the same 1000uf35v but they are shaped differently one is a bit taller slimmer and one shorter fatter, as i look for replacements i don't see different sizes just ratings that are the same but all the caps seem the same as long as they fit in there and ratings are the same am i ok just swapping the old with different shaped same value caps?
Very educational. Answer many my capacitor questions. May I ask below capacitor geometry questions for my DIY capacitor made from plastic sheet and alum foil similar to the one you made? Bigger the roll (bigger diameter) + tighten the material layer gap make higher capacitance. More surface contact to + and - leg make higher Amp capacitor. Does longer the cylinder roll make higher DC voltage? What make higher voltage?
If caps block DC how so they work on our mini quads i guesd because were hooking them in parallel and not series rite? How is it filtering out the noise in our video when we put them rite at the terminal leads for the main power? Thanks man keep these awesome educational videos coming you would spend a lot to go to school to learn what your teaching us for free good on you mate!
Yes, in parallel. Consider a bucket where the supply is a thin hose while the video transmitter is fed with a thicker hose from the bucket instead of directly from the main source. When the draw isn't too large, the bucket can be filled up with spare capacity. As the motors kick in and consumes all the main supply can give (and then some), the transmitter can be supplied from the reservoir of the bucket. Buffering caps are usually best placed as close as possible to the consumer to be 'protected'.
i gotta ask, why didnt you become a professor for electronics? i know alot of schools have a language thing they dont like, but you could have fought against that....
Brilliant mini-lecture ... the perfect blend of theory (simplified for us hobbyists) and real-world electronics-board practical. It HAD to be good ... there was an oscilloscope in it!!!!
"It must be true, I saw it on the oscilloscope!" Just love that phrase! You're the best at explaining complex stuff. Thank you.
this is a basic electricity concept that any high school child should've understood, not any closer to being 'complex'
I’m trying to educate myself about electronics and electronic repair. You’ve been very helpful in my quest for knowledge. Thank you.
3 vids later i found you Bruce. The other 3 did nothing for me but your vid gave me the info i required. Thank you so much. Your my favourite. Dont forget the antenna on the tx, that cracked me up.
Your shaking (or lack thereof) doesn't make any difference to you sharing this kind of gold in such an easy to understand package. Great vid.
After searching through tens of websites for a good explanation of capacitors, I could not find anything worth reading until I came here... Thank you!!
Thank you! As someone who isn't an EE but likes to tinker, this is extremely useful info to know!
Super presentation, Bruce. You captured my attention for the entire 39min. These tech days are really enlightening. Keep them coming.
Finally a practical explanation of capacitors without just going through the theory and physics - suddenly makes sense for one without an electrical background.
I'm not even into RC planes, but the videos on your channel are so concise and useful!
Mike Donaghy Yay!! Me too.. finally get to understand electronics 😊
You are an excellent presenter. I hope you have many more videos for electronics learners 👍🏼🏁💯🍻
When I recently became interested in quad copters, I was basically looking for copper, but with your channel Bruce, I found gold!
I'll take your videos as main guide for builds and on top of it all I get to learn so much about electronics. Keep up with good work, I wish you all the best!
Thanks so much for these videos. I wish my teachers were so enthusiastic about what they taught. Nothing stitched back then. THX
Finally! Someone to properly and thoroughly explain capacitors with a bit of sense of humor and a voice I actually want to listen to
Good info! Can you make another video but go beyond the basics (advanced concepts: charge sharing among capacitors). Really appreciate it! Keep up the great videos!
Great breakdown of capacitors for those of us without an electronic engineering degree like me. Thank you!
Glad I found your channel, i learn a lot from you. Thank you for your time Bruce.
Thank for keeping it simple, too high volume would probably result in magic smoke coming out my ears. I always learn something from these videos.
Thanks, Bruce! Great seeing the oscope demos!
Thanks Bruce! I always view your lessons as a capacitor discharging it's energy to all of us and that charges us up. Sorry, it's very late here, must go to bed.......
Bruce, You are one hell of a teacher from RC, Drones and this... what other channels do you have?... This is Brilliant. Your knowledge seems to go on & on... But as always... Humble with it. My respect goes to you.
Obviously a wealth of knowledge. I wonder if google may constantly be asking questions to you sir.
Excellent.More power to your throat.You are a great teacher.
Just wanted to say thanks for such a great video! Fascinating and very well explained. So valuable
I really like your shows, a lot is over my head but not all. Thanks, Cheers!
great video !!! and way better explanations than some electronics courses I have taken !!!
Great video. Was hoping for a little practical bit about how to choose and where to put extra caps on an RC model
NS Gaming this is something I like to see as well....still great video anyways
Always great! Been involved in electronics as a hobby for many years and still learned some things. For next week when your talking about accelerometers and autopilots can you please explain on the old NAZA why the GPS in relation (distance) to the flight controller is so important. Your a great goto channel.
Very nice, Bruce. I learned a number of things in this one.
Good explanations as always Bruce
" _sometimes magic smoke will come out_ " With either a lack of skill and practice, or conversely a lot of skill and practice, you can sometimes get more than just magic smoke. Especially with electrolytic can types :D
35:41 Is that little gray box where the magic smoke is stored...? I have never seen it labelled quite so clearly
LoL:-) Good one!
Bruce, great explanation of what can be a very complex subject. Coming from a mechanical maintenance background I have a very basic knowledge of electronics by comparing electrons to hydraulic fluid. It's easy for me to visualize fluid flowing where I want it to go and what I need it to do. Caps I visualize as accumulators ( a surge tank in a home steam system is an accumulator ) to smooth the flow. Don't know why my brain works better with fluid, but at 66 I have given up on tiny really really fast bits of noseeum stuff that hurts if you grab it. Ruins cutters also!
@@williamstewart5635 - Nice analogy!
Thanks Bruce, for all that you teach us!
Best video about capacitors I've seen yet
Thank you sir...You are an awesome instructor...All the way from Texas!
Thanks Bruce, your lecture helped me understand my ebike, and the charging system, and the capacitors inside the system....always enlightening my electrical knowledge.... You sir....
thank you bruce. you really explained capacitors well. i had no idea there was water in those electrolytic capacitors.
Another analogy for the capacitor filling in the gaps could be comparing it to a water tower filling the gap in demand for water.
I learned a lot from this video! Thanks for sharing this information Professor Bruce and I look forward to the next class ;-)
Not bad, you did about 2 weeks of a 15 week EE course in 39 minutes, give or take. Thanks for sharing
Thanks Bruce! Always enjoy your teaching 👍
opposite things attract each other as he said. I have little knowledge of electrics so that's why I had to subscribe.
Thanks so much! Our tafe teacher doesn't know what he is doing, so this helps a lot!
THANKS BRUCE! Sorry for yelling but I want everyone to know how helpful you (accent) arrre. I've always struggled with understanding electronics, not anymore thanks to you! I'm with Ground Control RC, I too CAN NOT wait for your next class. Have you done a video about wiring an ESC and these brushless sensored/sensorless motors, if not may I request that as a future tutorial? Or multiple separate classes, I assume trying to combine all that into one video would be the longest video ever.
Another great video. Thanks for the information and the time you took to make the video.
I'm not in the RC world. I come here for education. I think there would be a lot more engineers in this world if there were teachers like him. Does he have a "series" on electrical components or do you just have to search through and find gems like this one and the one on Ohms Law?
Superb teacher!!! Very interesting explanation and much thank you🙂
Another brilliant video, thanks Bruce!
Just in time for L2 Physics tomorrow! Great stuff. It's tricky talking about capacitors being "charged" because it can have two meanings. One is that it is "charged with energy" - ready to do work. The other is "charged with electrons" - which is confusing because that only applies to one plate. The total number of electrons in a charged and discharged capacitor is, of course, the same. They have just moved around so their distribution on the plates has changed. So capacitors do not store charge, strictly speaking, but separation of charge. Is that more helpful? Not sure really. Your way of just considering each side by itself is probably more intuitive which is good.
Definitely have a better understanding of capacitors now....thanks for your hard work on this😉
So fascinating. I learned a lot and had so much fun watching.
You are a great teacher!
Thanks Bruce... Wish I had your videos when I was studying engineering :)
Also love your analogy of why "opposites attract" :)
Wish there was a lightweight + safe 1500mah+ 200A+ 100gram Capacitor that we could use to replace Li Po batteries :)
Thanks Bruce! Great explanation
10:55 - 8 litre W16 quad turbo. 1000hp in Veyron, 1500hp in Chiron 🙂
Very well presented. It really helps build knowledge for me.
🙏thank you for sharing all your knowledge of capacitors
another analogy would be that a capacitor is an electron-spring. soo much voltage? the spring compresses. too little voltage? the spring relaxes. a short circuit? the spring.... well, yeah, I'm sure you get the idea :p
it's like the shock absorber of a car.
Out of passing interest: the hydraulic equivalent of a capacitor is the 'Accumulator'. Also, an interesting read is the Wikipedia 'Capacitor Plague' entry. It goes deep into faulty electrolytic caps, includes loads of gory bad cap photos and harrowing tales of how stolen electrolyte formulas & industrial espionage had us living in bad cap hell for all those years.
I remember the capacitor plague well... I worked as an elementary school technician at the time, and we had Dell GX270 PCs dropping like flies. I don’t recall how many mother boards and power supplies I replaced under warranty. Finally Dell stopped supporting the things. I understand that this little affair cost Dell (and others, I’m sure) very dearly.
@@gryfandjane - I heard (unofficially) that the caps fiasco very near finished off dell.
rwbishop I had to work in hardware support during the plague. We were swapping out motherboards faster than we could source new ones...
Makes total sense while having me laughing at the same time. Thank you very much for these videos!
Now ... i'm off to fetch my spanking new multimeter! :D
Excellent presentation!
Wow this guy is a genius I picked up a lot
Speaking of oscilloscopes, could you do a video on the uses of oscilloscopes in rc applications, what oscilloscopes you recommend for this hobby, how oscilloscopes are used and such?
Thanks Bruce - great job!
Bravo, excellent lesson and very well explained, you should do more.
Thank you for your time and videos .
Thank you for this great tutorial which is very much appreciated. What kind of capacitors are used for voltage protection on a RC circuit? In other words, what kind of capacitors do "glitch busters" utilize? Are they also Low ESR or not?
Damn I love this guy’s energy
Reminds me of the old TV repair shop trick, if you had somebody snooping around the bench that didn't belong there, the technician would set a charged capacitor where they could get to it, invariably they would pick it up, sometimes you would hear a little cry...OUCH! And the person would find something else to do! LOL
We hear you ... thanks looking forward to you next.
great video. now I understand Capacitors much better
Love it ! I'm totally geeking out . Need to get me an cheepy oscilloscope to play with .
fantasic school day. thank you Bruce!
Super video! Can you tell me if there is a rule of thumb or a way to compute the appropriate value for an electrolytic capacitor across the battery terminals on a quadcopter? Thank you
Love your teaching
He's like a "Bob Ross" of electrical components.
Wonderfull video, Thanks for putting it out to the world Bruce :D
" I'll show it to you on the Beach "............LOL !! It took my a little while to realize that you were saying " Bench ".......LOL !!
These are awesome. FET's next, please
A slight damper on your speech speed will make it easier to follow for people like me who are not used to high speed listening
Awesome! Love stuff like this man! 👍🏽
loving this series!
Missed the one where you put a high value resistor parallel to a cap. Supposedly it drains the cap slowly, so if it's extra-spicy you don't find out the hard way. And the cap-resistor combo, isn't that combined with a relay for a turn-signal blinker?
Great tech Tuesday thanks 👍
34:30 - electrolytics per Esc - yup it’s old school but it’s coming back into use now especially with people using 6S. 6S has nasty voltage spikes as you can imagine!
Very good presentation.
Excellent job Mr. Simpson. May I ask, what line of work were you in.
Watching/subscribed from San Diego
excellent video thanks good info and entertaining .
As always, so good and simple!
The plastic bottle above the radiator is an expansion or header tank....👍
I have two capacitors rated the same 1000uf35v but they are shaped differently one is a bit taller slimmer and one shorter fatter, as i look for replacements i don't see different sizes just ratings that are the same but all the caps seem the same as long as they fit in there and ratings are the same am i ok just swapping the old with different shaped same value caps?
One of my capacitors has started to bulge. Not sure if I should replace it or see if it gets any worse.
Great video Bruce, very informative. Have you or can do a video on how to use a oscilloscope?
Very educational. Answer many my capacitor questions.
May I ask below capacitor geometry questions for my DIY capacitor made from plastic sheet and alum foil similar to the one you made?
Bigger the roll (bigger diameter) + tighten the material layer gap make higher capacitance.
More surface contact to + and - leg make higher Amp capacitor.
Does longer the cylinder roll make higher DC voltage? What make higher voltage?
Again great video lesson. Top.
Thanks so much for this very informative cheers
now i know how capacitors work, great vid. Thanks man.
If caps block DC how so they work on our mini quads i guesd because were hooking them in parallel and not series rite? How is it filtering out the noise in our video when we put them rite at the terminal leads for the main power? Thanks man keep these awesome educational videos coming you would spend a lot to go to school to learn what your teaching us for free good on you mate!
Yes, in parallel. Consider a bucket where the supply is a thin hose while the video transmitter is fed with a thicker hose from the bucket instead of directly from the main source. When the draw isn't too large, the bucket can be filled up with spare capacity. As the motors kick in and consumes all the main supply can give (and then some), the transmitter can be supplied from the reservoir of the bucket.
Buffering caps are usually best placed as close as possible to the consumer to be 'protected'.
i gotta ask, why didnt you become a professor for electronics? i know alot of schools have a language thing they dont like, but you could have fought against that....
Thank you Bruce!
Damn, I enjoyed this video.