MAKE presents: The Capacitor
ฝัง
- เผยแพร่เมื่อ 25 ก.พ. 2009
- Simple yet effective, they come in a dizzying array of forms and materials. Vital to so many circuits for storage, timing, and filtration - the mighty capacitor!
Find more at the Maker Shed: makershed.com
Make: Electronics, 3rd Edition: www.makershed.com/products/ma...
Learn more: makezine.com/video/make-presen...
audio and video by Collin Cunningham
makezine.com
More Make Presents:
Ohm's Law: • MAKE presents: Ohm's Law
The Resistor: • MAKE presents: The Res...
The LED: • MAKE presents: The LED
The Inductor: • MAKE presents: The Ind...
The Multimeter: • MAKE presents: The Mul...
The Oscilloscope: • MAKE presents: The Osc...
The Integrated Circuit: • MAKE presents: The Int...
The Diode: • MAKE presents: The Diode
The Transistor: • MAKE presents: The Tra... - วิทยาศาสตร์และเทคโนโลยี
For a video uploaded in 2009 this is before its time quality wise.
its a timeless video
nice friendly inventors atmosphere. where we can just dream together uninhibitted.
It's a pity we don't see so much of Collin Cunnigham on TH-cam any more. He's a great video presenter... one of the best.
I am an ECET major, and this video series is the best one I have found for these topics. It makes them very simple and easy to understand. Now I can easily teach these concepts to others and even refresh my own respect for them easily.
Thanks.
You are the one of the best practical teacher...
great teacher. I don't know how he is so humble.
i love this demonstration! thanks for opening up the capacitor....always helps to know what these things are made of.
that demo of a crude capacitor (plastic bottle and aluminum foil) is an excellent way to demonstrate the capacitor's properties.
I have read and seen many video and they weren't able to translate or explain, things like you do; please don't stop making videos.
Very nice group of videos. I've learnt a few things this evening. I liked the bit of history thrown in to show the roots of progress. Thanks
Thanks. I have been doing some electronics stuff as a hobby but I have been confused. After watching a bunch if these videos I am back on track with no more troubles.
I must admit .. you are the best ,, you explain things the way it should .. thanks for taking your time to do it keep doing it .. God Bless
Collin, you're the LORD of electronics!
I love this guy, he explain very well and even beginners shall easily understand the explanation. Nice One Again!
I love that type of videos: simple, fun and instructive
Excelente video. I know the topic. But, the real teaching is the way you do it. I like the hiatory behind the capacitor too. Thank you.
While you're not a natural talker, you've still earned my sub for such detailed description of how things work.
I've been trying to find answers for these questions left and right and all I've gotten are answers how it works but never how it's made.
+Oriru Bastard They're good but definitely not 'detailed'
***** Care to elaborate?
+Oriru Bastard It's an 8 minute video? Shouldn't that be enough proof? You can't cram lot's of detail into an 8 minute video. Also he demonstrates an example where shows positive charge to negative charge. Despite contrary popular belief it's the other way around. It's negative to positive.
But either way these videos are a great introduction to the basic basic BASIC's of components.
***** Eh... They've explained everything I need to know in a detailed manner.
Sure they cannot go in to atomic scale but that's not even important in this case.
Oriru Bastard It's not important right now. But it will be.
good video. Thanks for putting it in HD to, it looks so much better.
Thank you for these videos. Learning so much!
Great Work, please keep doing it. You instruct millions with your know-aged! Thanks and best regards
thanks I am from India and have been looking for the functionality of various electronic components and in India we have bee taught in a fashion where there is literally no scope of learning although we have been thought conceptually about various things but no illustration , keep up the good work
A very interesting and informative video - got to watch all the others now! Thanks for posting.
The last example gave me a good idea of its meaning. Thanks!
Collin is something precious and we must protect him. ;)
I really enjoy your work. Thank you.
the intro had me laughing 😂. amazing video yet again from collin and the make crew
These are wicked useful for tons of projects.
good informative video. But I still have a question. When you make the laden (sp) jar, where is the actual storing of voltage energy, cause it seems from what you showed is that you created static electricity and let it flow into the center conductor, then you touched the center conductor to the outside conductor (after stopping the supply of electrical energy to the inner conductor), and there was a discharge as shown by the spark. So, if this showed that the inner metal wrapper held a charge for a while, then does that mean that even a wire should be itself hold a charge for a while, for example, if I connect one end of a wire to a battery and then take the battery away, will the wire hold a charge for a split second? If so, then is it the cylindrical design of the laden jar that causes the charge to be sustained for a longer time?
this guy is the best one to teach electronics his funny way of teaching makes people understand
This is an awesome video and your presentation was totally clear and understandable. Thanks for posting it. Cheers.
Such a great video to show basic concepts of a capacitor! I'm gonna show it in my lab
this show is awesome. I know nothing about electronics but I start to learn a lot from these videos. GG
Thanks so much for the tutorial, I'm going to make one now!
Awesome background music and awesome tutorial
Thanks! It all makes total sense now!
youre the best teacher ever. i wish u could have been my high school teacher
This guy's presentation is great....
Thank you very much man, you are one of the best teachers i will have. :)
Thanks for sharing your knowledge.
Excellent video and explanation
Thanks for explaning the capacitor...
Looking forward to studying this next year!
I am with every body saying make more videos like this. That was very informative.
Great video -looking forward to watching more!
the music is awesome in this!
Great video. Thank you for posting this video up.
I so much like these series, even though I'm perfectly aware of the components discuissed ^^
Thanks for the awesome videos! Keep up with the good work!
Very informative video, thank you!
Thank you for your videos,
Best regards
100% wicked learning!
.Thank you very much. Dear Sir : May you please show us how a simple electronic change over works, Best Regards
Beautiful.
man these videos are so cool. I hope you are still doing youtube stuff in 2020
That was Awesome, man!
thanks for all the lessons here! really helpfull!!
danger!!! genius at work!!!
That little wavy green thing is fascinating.
The video is very enjoyable and easy to follow, great video. But the music is unpleasant when you are talking. If you have to use the music please adjust the volume just right so that it stays as background music. And again GREAT Video and demonstration.
This my friends is real education.
Professor Colin :)
Every video top class
Thanks for sharing
Informative and entertaining! Well done!
I like the pace of this video.
Great video! Thank you.
@Ne555N You use the negative lead of the capacitor as the ground. You don't need to ground back to a battery since the capacitor is used a temporary storage for the current.
I love this TH-cam channel good stuff man
GREAT WORK
Based on these informations i will be able to build my own capcitors.
Thank you!
your the best ill say for sure explain very well tyvm
I just made one at my EMS station, we we're bored, and as everyone else was sittin around thinkin of something to do, and i got some alum. foil, a plastic Folgers can (always around lmao), some spare wire from the light bar switch we just did on our fly car, PVC pipe, and a polyester windbreaker, and it worked! Everyone here was gettin pretty good kicks out of it, even though it didn't work that well, i kinda made it in a hurry, we'll see if we can make it better, thanks for killing boredom! XD
This guy's a great teacher
Collin you're my hero! :D
finally some quality vids on youtube..
Thanks
i like the way you teach man nice work. I would like my electronics teacher teach me that way.
Very good stuff, thanks
amazing experiment!!
This video is pretty cool.
Five stars all the way.
Great vid!
man, you're good explaining
When and how we want to determine the size and type of capacitors to be installed in the circuit,what is the characteristics and how do I calculate the required capacitor in the circuit?
you been a great help.
Great video! Can you explain and dissect a Super-capacitor/ultra-capacitor.
If Capacitors are meant to hold a charge... why do we have batteries?
Fabulous haircut!
I'm digging the beat in the beginning.
Keep it coming with more videos, Electroman!
@Oshiba88 The voltage is the maximum the capacitor can handle without damage. As such, you could use a 2.2uF cap rated for 16V, 25V, 35V or even higher, provided it will physically fit.
i cant help stairing at his head for all his videos
A Leyden jar is a capacitor. All a capacitor is, is two plates of something conductive connected to electrical terminals of different voltages, that are close, but not in contact with each other. A charge is built up between the plates.
The way the common electrolytic capacitor differs from a plate capacitor is basically just that the plates are rolled up instead of flat, facing each other. Making one is, thus, really simple.
Read the Wikipedia page on the electrolytic capacitor for more info.
@ryangolf1212 so you have a place for the electrons to go
a capacitor consists of two oppositely charged plates. To get there from neutral foil you need to connect to ground on one side
You see the strip at 1:58?
It stores eletric conduction on thoes strips, they are charged, and because they have large areas, and they are usually filld whit some electrolit they can store eletricity by a high resistance to esceping electrons.
Thank you! That's really helpful.
Now I undestand something new :)
The use of the resistor is to reduce/restrict the full high voltage from the capacitor. LEDs actually are only able to handle 1-4 volts depending on the specs and overpowering them will burn them out. :)
Great Vid!
is it just me or the audio is a bit badly mixed ? the music is sometimes too loud . my 2 cents ;) very very good video nonetheless
Yes, his lower notes are a bit loud and they interfere with his voice.
That was interesting, learned a bit I didn't know before.
@TenFoldDamage - Well, i'm glad that I read your post, because if I'd seen "mF" I would certainly have thought that it meant milli-Farad.
How did you get the pattern on the o-scope in the background? Nice video, keep making them.
Does the cup (?) capacitor have enough power to light an LED? My home brew aluminium capacitor is not showing any change when it was charged with a 9V battery. About to think this is really working??
really good, thanks
Cool video!
Thnks for the video.Best ever
So capacitors discharge when they are "full" or when they have enough energy?
Or do they discharge when they get some kind of pulse from the outside?
Because on PCB's the caps are always connected to the circuit, not like in the video where he connected them once the cap was full.
CookieCraftMedia They discharge because the electrons have a suitable path to travel. Normally, air is not a conductor but it will behave as one if there is enough voltage between the two conductors. If you bring the two conductors closer, the discharge will have a faster rythm or tempo.
CookieCraftMedia this is a good question tht still has not been answered because is not like the cap acts as a npn transistor or a pnp for this matter so how does this cap actually come into play? in a arduino uno you will notice those 2 big cap by the power jack and they are connected obvsly but when do they work ? if i power the uno with 5v(usb), 9v(jack) or 12v (VIN) what are this caps doing in place? when a transistor or voltage divider can and will do the same job?! and if im not mistaking there is a voltage divider in place for 3.3v (PWR Pin) and a resistor in place for regulating energy down to 5v (PWR Pin) so again why the CAP? and two at that if i was able to connect a motor directly to its GPP and work just fine then i wud have made a guess and said that those CAP are there to act as a reservoir of energy to contain the power needed to energize its motors like Servo Stepper or DC motors but i know that Arduino aren't good at powering motors directly after its a Micro controller not a Driver Controller right and on those you do see this big Caps you notice in the Arduino uno so can someone share some knowledge and shine light on this topic? thanks in advance
so is thee a component that can be change in the mcu to let it have more mA so that it can actually drive a motor it self what type of upgrade can be done ?
CookieCraftMedia Whenever there is a charge on a capacitor, it will try to discharge itself. You can discharge it by shorting the leads with a piece of wire (not recommended for higher capacity caps charged to a few volts though) or a resistor, but since nothing is a perfect isolator (even air is not), the cap will discharge slowly over time. It will take more/less time depending on the resistance, capacity and initial charge.
So to answer your initial question, capacitors discharge whenever there is energy stored and it has a path to discharge.
B10S But when the capacitor is on a solid chip, there is no "Hand" which can short the leads out. So how is the charging and discharging controlled, when it is mounted fixed?