Let's build a voltage multiplier!

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  • เผยแพร่เมื่อ 3 ก.พ. 2023
  • In this video, I explain the how a Dickson charge pump operates and how to build a basic example.
    Support these videos on Patreon: / beneater or eater.net/support for other ways to support.
    ------------------
    Social media:
    Website: www.eater.net
    Twitter: / ben_eater
    Patreon: / beneater
    Reddit: / beneater
    Special thanks to these supporters for making this video possible:
    Adrien Friggeri, Aleksey Smolenchuk, Alex, Alex Black, An Dương, Anthony Weems, anula, Ben, Ben Cochran, Ben Kamens, Ben Williams, Bill Cooksey, Bill Watkins, Binh Tran, Богдан Федоров, Bradley Stach, Burt Humburg, Carl Fooks, Carsten Schwender, Chai, Chris Anders, Chris Lajoie, Chris Sachs, criis, Daniel Jeppsson, Daniel Pink, Daniel Tang, Darrell Burgoon, Dave Walter, David Clark, David Cox, David Dawkins, David House, David Sastre Medina, David Turner, Dean Bevan, Dean Winger, Deep Kalra, Dennis Henderson, Dennis Schubert, Dilip Gowda, Dirk Sperling, Dmitry Guyvoronsky, Dušan Dželebdžić, Dustin Campbell, Dzevad Trumic, Emilio Mendoza, Eric Dynowski, Erik Broeders, Erik Granlund, Ethan Sifferman, Eugene Bulkin, Evan Serrano, Evan Thayer, Eveli László, EvinSaysMarxWasRight!, Florian Bürgi, Florian Rian, fxshlein, George Miroshnykov, ghostdunk, GusGold, Humberto Bruni, Ingo Eble, Ivan Esparza, Jack McCracken, Jacob Ford, James Beldock, James Capuder, Jared Dziedzic, Jason Bowen, Jason DeStefano, Jason Dew, Jason Thorpe, JavaXP, Jaxon Ketterman, jemmons, Jeremy Cole, Jesse Miller, Jim Kelly, Jim Knowler, Joe Beda, Joe Pregracke, Joe Rork, Joel Miller, Joey Murphy, John Hamberger jn., John Henning, John Meade, Jon Dugan, Jonn Miller, Joseph Portaro, Jurģis Brigmanis, Justin Graziani, Kai Wells, Kefen, Ken Paul, Kenneth Christensen, Kyle Kellogg, Lambda GPU Workstations, László Bácsi, Leo K, Lithou, Lord Dorogoth, Lukasz Pacholik, Marcos Fujisawa, Marcus Classon, Mark Day, Martin Noble, MatrixSenpai, Mats Fredriksson, Matt Krueger, Matthäus Pawelczyk, melvin2001, Michael Koreshkov, MICHAEL SLASS, Michael Tedder, Michael Timbrook, Michael Weitman, Miguel Ríos, mikebad, Mikel Lindsaar, Miles Macchiaroli, Muqeet Mujahid, NacOJerk, Nate Welch, Nicholas Counts, Nicholas Moresco, Nick Chapman, Oli Homer, Ori Shamir, Örn Arnarson, Paul Heller, Paul Pluzhnikov, Pete Dietl, Phil Dennis, Philip Hofstetter, ProgrammerDor, Ralph Irons, Randal Masutani, Randy True, raoulvp, real_huitz, ReJ aka Renaldas Zioma, Ric King, Rick Hennigan, Robert Diaz, Robert Keown, Robey Pointer, Roland Munsil, Sagnik Bhattacharya, Scott Gorlick, Scott Holmes, Sean Patrick O’Brien, Sergey Kruk, Shane Mulcahy, SonOfSofaman, Spencer Ruport, Splashtwist, Stefan Nesinger, Stephen Kovalcik, Stephen Riley, Steve Jones, TheWebMachine, Thomas Eriksen, Tim Oriol, Tim Walkowski, Tim Wheeler, Tom, Tom Knowles, Tom Smith, Tyler Latham, Usseod, Vincent Bernat, Warren Miller, Wim Coekaerts, xisente, Yee Lam Wan

ความคิดเห็น • 1.7K

  • @ArnavBarbaad
    @ArnavBarbaad ปีที่แล้ว +6931

    Ben is two steps away from becoming Electroboom

    • @nguyentruongphu1383
      @nguyentruongphu1383 ปีที่แล้ว +287

      They should do a collab one day

    • @Chris-ib8lw
      @Chris-ib8lw ปีที่แล้ว +289

      Just a few electrocutions away you mean... 😁

    • @yuanheli307
      @yuanheli307 ปีที่แล้ว

      Step one, be almost died.

    • @TheBarretNL
      @TheBarretNL ปีที่แล้ว +22

      Hahaha, best comment. :D

    • @jakobpa1189
      @jakobpa1189 ปีที่แล้ว +43

      Yeah But He doesn't mess Up s thousend Times

  • @szymoniak75
    @szymoniak75 ปีที่แล้ว +2059

    I'ts mindblowing how you can explain everything in such an easy to understand manner

    • @unclefreddy2009
      @unclefreddy2009 ปีที่แล้ว +32

      Absolutely incredible, all this time over years trying to learn electronics and watching single videos with his clear examples and it’s all resolved in minutes. What a talent.

    • @alexc4924
      @alexc4924 ปีที่แล้ว +12

      @@unclefreddy2009 i think it all depends on finding the right video for your knowledge level. Eventually you'll find those other videos also useful

    • @jeremyking8485
      @jeremyking8485 ปีที่แล้ว +5

      So many explanations get made infinitely more confusing because the person explaining it doesnt really understand it either. Ben is the goat

    • @ohnoitisnt
      @ohnoitisnt ปีที่แล้ว +5

      Things are easy to simplify if you understand a topic down to its fundamentals

    • @cruelfish4824
      @cruelfish4824 ปีที่แล้ว +3

      Easy to understand?
      Today I learned, I am dumb.

  • @GoughCustom
    @GoughCustom ปีที่แล้ว +1345

    Demonstrating this by actually moving the capacitor, and then also with a mechanical switch, is an amazing way to show how this circuit works! Thanks for the wonderful videos!

    • @pauls5745
      @pauls5745 ปีที่แล้ว +13

      ya I thought the switch was an elegant way to show what's going on here

    • @-danR
      @-danR ปีที่แล้ว +5

      I fear for his life. The giant transformer industry will not stand for this threat to their vested interests!
      Have you ever heard of a living inventor of a real working perpetual motion machine? Didn't think so.
      ( 🤪 )

    • @davelowets
      @davelowets ปีที่แล้ว +6

      @@-danR Living or not, that's not possible. Perpetual motion machines can not be invented.

    • @jeanbaumann5402
      @jeanbaumann5402 9 หลายเดือนก่อน +1

      @@davelowets that was the joke you missed

    • @jimmio3727
      @jimmio3727 9 หลายเดือนก่อน

      @@davelowets This may not be true. Superfluidics may be perpetually in motion; that doesn't mean we can ever extract work from said perpetual motion if the papers turn out to be true.

  • @peteleoni9665
    @peteleoni9665 หลายเดือนก่อน +30

    70 years old. Messing with electronics my whole life. This is the 1st time I have actually "groked" this. You sir really are the best.

  • @sakshatlakhiani847
    @sakshatlakhiani847 ปีที่แล้ว +1547

    I am an electronics student. None of my professors is capable of elucidating in such a manner. Huge Thanks for being on youtube and sharing the knowledge.

    • @bitlong4669
      @bitlong4669 ปีที่แล้ว +60

      Right?!, profs got this attitude as if you already supposed to know what they are talking about. Books also are written like that. Way to learn stuff is to watch TH-cam first, then dive into the book lol.

    • @rockytom5889
      @rockytom5889 ปีที่แล้ว +31

      Yeah, academics be like that. I had an easier time learning C for my programming classes by reading the linux manpages for it, than by listening to my prof talk inaccurate gibberish about it.

    • @whannabi
      @whannabi ปีที่แล้ว +7

      @@rockytom5889 man pages are fine but sometimes it's a bit cloudy so finding examples also helps in these cases

    • @alexanderkuhn2298
      @alexanderkuhn2298 ปีที่แล้ว +27

      Gotta love it when you ask a specific question like "what is that capacitor there on the schematic for?" and they come back with something like "yeah that cap is there, helping the capacitance on that line, but this should already be common knowledge...uhhh moving on"

    • @cheeselemon89
      @cheeselemon89 ปีที่แล้ว +5

      i was today years old when i saw the word : elucidate.

  • @chriskaprys
    @chriskaprys ปีที่แล้ว +783

    Really appreciate the way you build on one idea at a time this way. It’s a rarity to learn from a teacher who is attuned to the student’s perspective (how it feels to not have the knowledge being taught).

    • @ZoonCrypticon
      @ZoonCrypticon ปีที่แล้ว +4

      Yes. very rare ...!

    • @shaunclarke94
      @shaunclarke94 ปีที่แล้ว +4

      I've learned so much from his videos for that reason.
      Starts with the basics then builds on it.
      His logic videos were amazing.

    • @whannabi
      @whannabi ปีที่แล้ว +1

      @@shaunclarke94 yep, same for binary negative numbers. The advantage with that is that if you ever forget or come back after a long time, you can try to find it back with logic

    • @nikbivation
      @nikbivation ปีที่แล้ว

      yes! exactly!

    • @josephpaolilli9229
      @josephpaolilli9229 ปีที่แล้ว +1

      Absolutely! There are many youtube channels showing really cool electronic builds and concepts, but this is the only one I know of that is paced for learners. Not to disparage those other channels, but the rest go so fast through the material that each video requires independent study (and sometimes frame by frame review) to actually understand and appreciate whats being presented. With a basic electronic education (all the laws and understanding of most passive and active components) I can just watch Ben's videos and feel as though I really learned something by the end.

  • @josepalacid
    @josepalacid ปีที่แล้ว +261

    I've seen thousands of educational videos trying to explain different concepts on different disciplines. There's nothing like this anywhere, not in youtube not in payed content. Societies need people like you to grow and step into the future, more than any other thing. If our future is on education, then your ability is precious.
    Please: KEEP-IT-UP!

    • @daytradersanonymous9955
      @daytradersanonymous9955 5 หลายเดือนก่อน

      Engineering Mindset. Channel🤌

    • @TadaHrd
      @TadaHrd 3 หลายเดือนก่อน

      Why don't people take Ben Eater as an example?

    • @josepalacid
      @josepalacid 3 หลายเดือนก่อน

      @@TadaHrd I my most humble opinion, maybe because Mr Eater* innate ability to teach is so scarce that can be seen as a gift?
      It's really hard to get in the learner's POV, when you are way ahead in any discipline, and TEACH others. Most of entitled teach are more likely to show how much they know, than to transmit their knowledge.
      *(even he is younger than me, I feel the urge to use this treatment to be aligned with my admiration to his work)

  • @michaelmalzacher6018
    @michaelmalzacher6018 7 หลายเดือนก่อน +34

    you seem to understand this stuff on a intuitive level that nobody else on youtube does i swear. im new to electronics/circuitry, but its still so clear that you really really know what you're talking about

  • @tlniec
    @tlniec ปีที่แล้ว +246

    Building up to a DC/DC converter circuit by gradually introducing capacitors, physical switches, and diodes... then moving on to a clock signal and MOSFET... was brilliant! This is the most intuitive way I've seen a power supply Circuit explained, and I'd love to see a similar approach for other topolgies!

    • @kindlin
      @kindlin ปีที่แล้ว +15

      You should see his entire 44-video _Breadboard computer,_ where he starts with diodes and flip-flops, makes a clock, ram, an adder or two, control circuitry, and can write a program on his own hardware to calculate the Fibonacci sequence up to 256 (8-bit adders/ram/bus). It's literally amazing and I couldn't wait for each episode to come out, it took ages! lol

    • @abdyfranco
      @abdyfranco ปีที่แล้ว

      It is amazing the way he explains things, starting with the basics that anyone can understand and gradually increasing in complexity.

    • @alexserdukov1595
      @alexserdukov1595 ปีที่แล้ว +3

      This isn’t dc dc voltage converter
      This is ac/dc voltage multiplier, in this example it turns low voltage square wave to the high voltage dc
      But it would also work with sine wave ac current from the grid (while dc dc converter won’t)

    • @benjaminmuller9348
      @benjaminmuller9348 ปีที่แล้ว +4

      @@alexserdukov1595 except it is, the 555 is Part of the circuit and runs on DC

    • @rogerramjet6429
      @rogerramjet6429 ปีที่แล้ว +2

      @@alexserdukov1595 it's actually a square wave not AC.
      Similar effect but different principles of operation.

  • @superspak
    @superspak ปีที่แล้ว +200

    As a mechanical engineer trying to understand electrical/computer engineering more, this channel is a goldmine. Keep up the great work.

    • @jayvonirsik7232
      @jayvonirsik7232 ปีที่แล้ว +5

      Right. I thought I would be able to just slide right in but yeah I found that I am like a new born to an 80 yr old man.

    • @superspak
      @superspak ปีที่แล้ว +4

      @@jimbobb3509 I mean it's harder to integrate improvements in that type of infrastructure. At least they are making all those skyscrapers that can survive earthquakes I guess 🤷

    • @rfariavitor
      @rfariavitor ปีที่แล้ว +1

      That makes two of us. It's exactly the same story here. A mechanical engineer that was hired by a company that designs and produces electronic devices and respective software, and now he's amazed by this world of electronics.

    • @johnmarks714
      @johnmarks714 ปีที่แล้ว

      As an electronics hobbyist, Id like to understand mechanical engineering. Any resources to recommend?

    • @bryancmcdonald3978
      @bryancmcdonald3978 5 หลายเดือนก่อน

      Heat flows from hot to cold talk to a guidance counselor and walk out the door.
      ===
      Electrical engineering guidance counselor told me don't take astronomy and I know why now.
      ====
      I , loved the lab .
      ===
      We're passing around cheapo American made $5,000 binoculars etc.
      ====
      Head start parties it was a lot of fun for astronomy majors.
      👋😎💨 Bryan
      🐎💨💕

  • @KarldorisLambley
    @KarldorisLambley ปีที่แล้ว +29

    This video is EXACTLY what I needed to see. It featured a concept I have had difficulty understanding in a way which made things perfectly lucid. The business with the switch was a fantastic way of explaining things. I love Mr B.Eater's videos and his laconic American teacher voice. This man should be in a classroom/lecture hall teaching. (I also found his 555IC video to be similarly amazing). He is like electroboom without a body, monobrowbrow, or electric shocks/sparks.

    • @1pcfred
      @1pcfred ปีที่แล้ว

      Voltages in series add up. It's why we combine cells into batteries. Here he's just substituting a charged capacitor for another battery. But then he charges the capacitor with the original battery. If you take a 9V battery apart you're find six 1.5V cells in it. There's two styles. There's the packs and there's the cylinders. Packs are stacked and cylinders are side by side. Also 9V battery cases are always made out of sheet metal that's one hundredth of an inch thick. So I use them as shim stock a lot. Don't matter who made the battery it's always 0.01" Must be some battery cabal conspiracy stuff.

  • @cagankahraman4031
    @cagankahraman4031 ปีที่แล้ว +2

    The most remarkable thing I've noticed in the video is the way he magicly switches between colors at 4:56

  • @tmvkrpxl0135
    @tmvkrpxl0135 ปีที่แล้ว +264

    Ben is stepping into the dark side! It's really weird to see him dealing with not-so-soft voltage level

    • @xabab
      @xabab ปีที่แล้ว +5

      Damn, it've been years since I saw that pink-black checker pattern of the profile picture of yours

    • @snazz1363
      @snazz1363 ปีที่แล้ว +1

      @@xabab gmod?

    • @xabab
      @xabab ปีที่แล้ว +4

      @@snazz1363 Yep. Seems like someone forgot to install CS:S 😂

    • @whannabi
      @whannabi ปีที่แล้ว +1

      Time to collab with styropyro

    • @SomeRandomPiggo
      @SomeRandomPiggo ปีที่แล้ว

      @@xabab The addon "GBombs 5" is creating errors, check the console for details.

  • @wewillrockyou1986
    @wewillrockyou1986 ปีที่แล้ว +284

    This was probably my favourite thing I learned from an electrical engineering course I did over a summer when I was 14... I may have blown up a cap or two trying to charge them to 1kv with a boost converter...

    • @clairekholin6935
      @clairekholin6935 ปีที่แล้ว +31

      Well, what else would you do with them?

    • @charliewatsonlake8618
      @charliewatsonlake8618 ปีที่แล้ว +12

      My earliest memory of electronics is sitting at the table after playing with a breadboard kit I had, grabbing an LED and connecting it straight to a 9V battery.
      My mum nearly had a heart attack

    • @amarissimus29
      @amarissimus29 ปีที่แล้ว +8

      ​@@charliewatsonlake8618 You had one of those mothers that couldn't handle seeing a tiny light briefly illuminated too, huh. Or was the LED a family heirloom? Well, I'm sure this makes sense to someone.

    • @6LayersDeep
      @6LayersDeep ปีที่แล้ว

      @@amarissimus29 😂

    • @charliewatsonlake8618
      @charliewatsonlake8618 ปีที่แล้ว +1

      @@amarissimus29 it blow up

  • @_droid
    @_droid ปีที่แล้ว +28

    Of course at the end of that multiplier you could put a much larger capacitor that gets charged over a period of time. Then you can feel the full power of the Force. I use it for tack welding small parts.

  • @Rudster14
    @Rudster14 ปีที่แล้ว +16

    I just graduated with a focus in electrical engineering and you are explaining these concepts so much better than many of my professors. Thanks!

  • @mattsains
    @mattsains ปีที่แล้ว +46

    I’ve literally been stuck on a project for a while because I need to generate a high voltage waveform at low frequencies and this has helped me overcome my limited knowledge. Excited to use it!

  • @williamcohron2380
    @williamcohron2380 ปีที่แล้ว +65

    Great video on Charge Pump theory. It's a fantastic visualization of the breakdown of the process. Of course, there are simple single IC examples of DC-DC Charge Pump using a couple passives as well as Buck-Boost versions using a small inductor, but this provides great fundamentals of the process.

  • @dengdaniel2388
    @dengdaniel2388 11 หลายเดือนก่อน +5

    Seriously this is the best explanation of a 555 timer i have ever gotten in my life .
    I don't think there's a better way to make someone easily learn it.
    Much appreciated

  • @rhymereason3449
    @rhymereason3449 8 หลายเดือนก่อน +3

    I've never been about to get such an intuitive feeling for how charge pumps work before - good job! You're a great teacher 🤩

  • @zbll2406
    @zbll2406 ปีที่แล้ว +244

    Really good video. Suggestion: can you make a video about boost/buck DC-DC converters? They use the same principle I think, but also use an inductor

    • @alexc4924
      @alexc4924 ปีที่แล้ว +37

      The principle is kinda similar but also quite different, but I think he could explain it in the same style. I find inductors are a little less intuitive.

    • @JDTeam
      @JDTeam ปีที่แล้ว +21

      @@alexc4924 inductors are less intuitive, because there isnt really any everyday object that act quite like them. But the main thing to understand is they have ""momentum"" to move current, and if you switch the circuit off, they will rise the voltage until either the current starts to flow again , or they run out of ""momentum""

    • @elpatosilva
      @elpatosilva ปีที่แล้ว +3

      Joule thief is a basic example. Buck converters use the principle of induction and it is not easy to understand witout a backgroud.

    • @totally_not_a_bot
      @totally_not_a_bot ปีที่แล้ว +19

      @@JDTeam Sounds like a flywheel?

    • @murasaki848
      @murasaki848 ปีที่แล้ว +6

      @@JDTeam You can describe inductors in terms of long water pipes. When you have a large mass of water moving in a pipe, suddenly shutting a valve at the end causes "water hammer", i.e. that momentum in the water to develops a high pressure if there is nothing in the line to redirect the momentum to (e.g. a hammer arrestor in the water line, or a flyback diode across an inductor). Though it's more complicated in electricity because the magnetic field is part of the "storage" of momentum, it's pretty much the same principle. Electric current, like water current, has momentum, and doesn't like to change.

  • @ori61511
    @ori61511 ปีที่แล้ว +45

    You're the best ben

    • @sadhlife
      @sadhlife ปีที่แล้ว +1

      I agree he is indeed the best

    • @Napert
      @Napert ปีที่แล้ว

      How

    • @Mauricetz
      @Mauricetz ปีที่แล้ว

      Then who's the worst ben

    • @murasaki848
      @murasaki848 ปีที่แล้ว

      @@Mauricetz Benedict Arnold?

  • @AJRobinson
    @AJRobinson 6 หลายเดือนก่อน +3

    I haven't even gotten past 2 minutes and you've already perfectly explained how a charge pump works. I can't wait for the rest of the video, thank you Ben!

  • @decnacyt4690
    @decnacyt4690 ปีที่แล้ว +6

    I love how you go gradually increasing the complexity but without missing any explanation in detail. Thank you

  • @sirflimflam
    @sirflimflam ปีที่แล้ว +30

    Ben you are absolutely my favorite youtuber for this sort of thing. The way you're able to break down even complex stuff is really good.

  • @IslandHermit
    @IslandHermit ปีที่แล้ว +19

    I love the way you're able to break things down into simple, demonstrable steps that build on each other. Great work!

  • @josh1776
    @josh1776 ปีที่แล้ว +4

    I’m a computer engineer taking lots of EE classes and this video was more educational on circuitry than any lecture I’ve ever had

  • @chrisj2848
    @chrisj2848 ปีที่แล้ว +17

    Ben you are an incredible educator. You have an amazing ability to break stuff down so that it seems intuitive. Please write a book! 👍

  • @afortifiedcity
    @afortifiedcity ปีที่แล้ว +36

    "There's not very much energy to move, so I can't really feel anything" sounds like we need to try again with larger capacitors 😁

    • @coastersaga
      @coastersaga 7 หลายเดือนก่อน

      @@MLU8811 How come in the thumbnail, I saw an arc of >100V?

    • @miltonb4522
      @miltonb4522 6 หลายเดือนก่อน

      @@coastersagait got you to watch the video didn’t it?

    • @miltonb4522
      @miltonb4522 6 หลายเดือนก่อน

      @@coastersagait got you to watch the video didn’t it?

    • @alexandermcclure6185
      @alexandermcclure6185 5 หลายเดือนก่อน

      @@coastersagait got you to watch the video didn't it?

  • @stevent1074
    @stevent1074 ปีที่แล้ว +6

    After hundreds of hours of education and thousands of hours field experience, this is hands down the best explanation I’ve seen of boosting voltage with reactive power. First video I’ve ever downloaded to use for teaching! This video is going to spark lightbulbs above many heads. Kudos Ben and Thank You

  • @BladeScraper
    @BladeScraper ปีที่แล้ว +10

    That is the best demonstration/explanation of a charge pump I have ever seen. I've known of their existence for a long time and had a rough idea of what the caps do, but your demonstration explained it fully. Bravo, and thank you!

  • @minikretz1
    @minikretz1 ปีที่แล้ว +12

    You're education process is amazing. You start out with a very simple idea and explain a goal. Then you just add one step at a time which each step is simple. By the end we have a somewhat complicated set up but we understand why each individual part is added. Great videos!

  • @joshfee3394
    @joshfee3394 ปีที่แล้ว +12

    Would love a similar video on switching regulators. None of the resources I've seen so far have really made it make intuitive sense, but all of your videos are amazing explanations.

  • @DavidRTribble
    @DavidRTribble ปีที่แล้ว

    Simple explanations for complex electronics.
    Start simple, and then build and build, until you have a complex system.
    Wonderful elucidation.

  • @umutk5614
    @umutk5614 ปีที่แล้ว +1

    The way you explain things are so clear that I understand them very clearly and always remember. Thank you Ben 🤗

  • @DC-go5mc
    @DC-go5mc ปีที่แล้ว +17

    I did this exact same development and thinking on a lab bench while a sophomore in college in 1978! Thanks so much for the memories. PS, I used a 2N2222 NPN. Didn't know about MOSFETs.

    • @manitoba-op4jx
      @manitoba-op4jx ปีที่แล้ว +1

      2n series transistors are still great.

    • @johncoops6897
      @johncoops6897 ปีที่แล้ว +5

      Mosfets were not in common use in 1978, and in those days were often considered inferior to BJT due to high cost and slow operation.

    • @DC-go5mc
      @DC-go5mc ปีที่แล้ว +8

      The design of the charge pump was to use it for RS232 communication to talk to a teletype. The overall three year project in college was to build and program a breadboard 8080A to read 1 of 16 toggle switches and output the Hex equivalent on four of the new red DC light bulbs (LED's)! I used DRAM and programmed a 1702 EPROM one byte at a time with hand assembled binary from the OP codes. Finally got it working before I graduated but only after switching to the Z80 which had Ras and Cas refresh lines for the DRAM. Very primitive by today's standards, but I learned so much, because back then even the Professors didn't know how to do it. We had to figure it out together.

    • @n2n8sda
      @n2n8sda ปีที่แล้ว +4

      @@DC-go5mc Ah that sounds like such an interesting project to have worked on.

    • @davelowets
      @davelowets ปีที่แล้ว +1

      @@johncoops6897 They made pretty good sounding amplifiers a few years later though... Those Hitachi TO-3's were magical sounding.

  • @Grendel1974
    @Grendel1974 7 หลายเดือนก่อน +3

    I am a beginner at building and testing and will be teaching my sons
    I am a low volt tech but during my apprenticeship the rule was follow manufactures instructions. I have gotten bored with that after 22 years lol now looking at playing not working 😵‍💫 it’s nice to see there is people willing to share knowledge
    Thank you

  • @gilbertcuoco
    @gilbertcuoco ปีที่แล้ว +1

    I think I've never seen a better explaination of this kind of circuitry as you did. This is absolutely awesome!

  • @mikefr24
    @mikefr24 ปีที่แล้ว +2

    Really neat. Ben you are a fantastic teacher. I am not even an electronics professional but I have no problems learning and understanding what you teach. Thank you for sharing your knowledge.

  • @KingDuken
    @KingDuken ปีที่แล้ว +26

    Once you started switching your mechanical switch before using the 555, I immediately knew where this was going lol. You're making a really interesting boost converter.
    Of course with a higher voltage means lower current in this circuit due to conservation of energy.

    • @realryder2626
      @realryder2626 ปีที่แล้ว +2

      It would of only taken minutes to add. You can't learn how to increase voltage without understanding you are halving amps.. misleading lesson, gives the impression of free energy.

  • @goranjosic
    @goranjosic ปีที่แล้ว +4

    Ben, it's amazing how well you explain things!! Every video I've watched, I've remembered something useful - which I can't say for all the creators I follow.

  • @tomsmith3045
    @tomsmith3045 10 หลายเดือนก่อน

    Best demo of a charge pump that I've ever seen! Really clear, concise, and fun. To the folks out there that want to play with this more, there is a DIP IC, the 7660, that is specialized to do this very thing, that used to be commonly used to generate a negative voltage where you need a low current negative voltage to run some sort of signaling or analog circuit.

  • @cantseeneedcaps
    @cantseeneedcaps ปีที่แล้ว

    I REALLY LIKE THE WAY YOU TEACH, THE WAY YOU DON'T LOAD US DOWN
    WITH USELESS DATA WHILE YOU EXPLAIN THE PRINCIPLES FIRST, YOU
    DON'T KNOW HOW RARE THAT IS

  • @tinsticker9884
    @tinsticker9884 ปีที่แล้ว +3

    im an apprentice as an electrician and the education is very good. still you made me understand so much things i couldnt figure out so far. great videos

  • @part1cle137
    @part1cle137 ปีที่แล้ว +10

    ben's videos are amazingly dual purpose, they can always put me to sleep but i always rewatch the video next day because they're so interesting

    • @rdubb77
      @rdubb77 10 หลายเดือนก่อน +1

      His voice hits the soothing frequency

  • @glitchy_weasel
    @glitchy_weasel ปีที่แล้ว +2

    What an amazing video. One of your best, in my opinion. Super excited to see what you'd do next with the serial interface.

  • @karoma7898
    @karoma7898 ปีที่แล้ว +1

    dude, you're like my elementary math teacher, that woman has been planting the love for math in young minds for over 30 years, an absolute treasure. hats off, sir.

  • @ZoonCrypticon
    @ZoonCrypticon ปีที่แล้ว +3

    Fantastic explications you offer us here, I wished I´d have had teachers like you in my younger years ! Thanks a lot!

  • @jyherapher1214
    @jyherapher1214 ปีที่แล้ว +5

    Ben you are a wonderful inspiration to us all. I am building your cpu in Minecraft and IRL. Amazing content, keep it up!

  • @1noryb
    @1noryb ปีที่แล้ว

    Best explanation I have heard!
    Brings back memories of figuring this out while investigating a CRT flyback circuit for a 19" tv. I have never seen my arm fly out of an enclosure so fast when I brushed the wrong wire, nor have I ever burned up a multimeter so fast!

  • @Ghost572
    @Ghost572 ปีที่แล้ว +1

    The way this is described is so good. It's always interesting revising a topic and seeing another persons take on it. I really liked the description on voltage having the potential to move a lot of energy but in this case doesn't because there isn't much to move. For a while I've been wondering how to describe that when it comes to situations where you can have high voltages but really they are a bit knock off because they can't actually do anything.

  • @eahemming
    @eahemming ปีที่แล้ว +8

    I've learned more from your content than just about anything else, in my opinion, you're the best computer electronics educator out there. Would you consider videos on oscillators, like frequency multipliers and dividers? Maybe it could be like "Making the worlds worst sound card".

  • @Circuit42
    @Circuit42 ปีที่แล้ว +22

    Love your content and how informative are you

  • @KJFMZ
    @KJFMZ 11 หลายเดือนก่อน +1

    Watched a few explanations of voltage multipliers but could never grok it until this one, now I fully understand it. Thanks man!

  • @timgrant8729
    @timgrant8729 ปีที่แล้ว +1

    As someone who has limited knowledge of electronics this was a great video that explains things in a way that the average person can understand!

    • @chad5188
      @chad5188 ปีที่แล้ว

      A person who are less knowledgeable are better cause they take actions.

  • @joedfazio
    @joedfazio ปีที่แล้ว +4

    Thanks for bringing back memories of 555 timers and diode switching circuits :) I designed circuits when scopes displayed waveforms using cathode ray tubes, yikes!

    • @noyb7920
      @noyb7920 ปีที่แล้ว

      When I was learning this stuff, the o-scopes had polaroid instant cameras to record waveforms with.

  • @julian7312
    @julian7312 ปีที่แล้ว +3

    Hey! I'm about to graduate in Electronics Engineering, and i have to say i'm always blown away from the manner that you manage to lay down an idea on paper and then go straight to the breadboard, from a simple circuit and then improving on it step by step, this is what EE should be all about. Whatched the whole thing at once, keep it up man !

    • @ProctorSilex
      @ProctorSilex ปีที่แล้ว

      Indeed, I wish he had been my teacher back in college.

  • @foxfire7604
    @foxfire7604 ปีที่แล้ว +1

    I'm a retired electronic engineer. I enjoy your videos. You have a great way of explaining things about electronics. Great job.

  • @user-ir4ch6df2p
    @user-ir4ch6df2p 6 หลายเดือนก่อน +1

    I'm new at electronics, being 50 years old I didn't think I would be able to pick the theory up. That was before this gentleman, he has such a focused, A to B technique making very practical demonstrations highlighting the theory in action. So glad I found this, have already learned so much.

  • @stumblestorms7881
    @stumblestorms7881 ปีที่แล้ว

    Thank you, I have been searching for visually interactive, vocal, and tactile description, explanation for these concepts. I am new to this and have been getting extremely frustrated, my learning disability can really get me down. I have a feeling I am going to be putting you videos on repeat because you make it easier to understand. Thank you so much.

  • @stevedonkers9087
    @stevedonkers9087 ปีที่แล้ว +3

    Ben is one of the few creators I subscribe to that gets the video like before the video plays. They're always great. The only downside to this video is it's only 16 minutes long.

  • @ryanforelli666
    @ryanforelli666 ปีที่แล้ว +4

    Love the video as always. I would like to suggest videos involving FPGAs, I think there's a wide array of really cool projects you could!

  • @patrickbritt-brousseau2813
    @patrickbritt-brousseau2813 5 หลายเดือนก่อน

    A brilliant way of demonstrating how caps work!

  • @jrfoliveira
    @jrfoliveira ปีที่แล้ว +1

    Really appreciate the way you explain practically simple this voltage multipliers circuit, excellent explanation

  • @jofathan
    @jofathan ปีที่แล้ว +14

    I sincerely wish you could have been my EE professor. You have an incredible ability to distill important concepts into succinct explanations and labs; truly magnificent work.

    • @truthsmiles
      @truthsmiles ปีที่แล้ว +1

      If he had been your EE professor, he probably wouldn’t have time for TH-cam.
      But this way, he’s _everyone’s_ EE professor :)

  • @Keex11
    @Keex11 ปีที่แล้ว +13

    Very nice video. The MAX232 transceiver uses charge pumps to generate the RS232 levels. You just add the external caps. Now I know how they work. Maybe you could illustrate how to get the negative level in this way?

    • @bene5431
      @bene5431 ปีที่แล้ว

      Just swap the positive and negative supply voltage and turn the diodes around

    • @alexc4924
      @alexc4924 ปีที่แล้ว

      I don't think you can just flip the circuit upside down because you'd need to have a negative voltage to begin with. You can use the exact same switching idea to make a voltage lower than 0, I'm just not sure if the same clever trick still applies

    • @bene5431
      @bene5431 ปีที่แล้ว +2

      @@alexc4924 Just pretend that the positive terminal of the battery is ground and you have a negative voltage

    • @JouMxyzptlk
      @JouMxyzptlk ปีที่แล้ว

      Look at the last seconds of his video where he shows the in-between voltages. Define one of those in-between as "ground" for your second circuit and you will have negative voltage to the left, and positive voltage to the right. Check with a multi-meter, should confirm!

    • @josephchamness9915
      @josephchamness9915 ปีที่แล้ว

      @@JouMxyzptlk but that would limit the power you can use for all rails?

  • @darth_dan8886
    @darth_dan8886 5 หลายเดือนก่อน

    I've seen these multipliers so many times, but only now do I understand their function! Thank you very much!

  • @anon_y_mousse
    @anon_y_mousse ปีที่แล้ว +1

    Now I need to see a breadboard taser. It would be hilarious to see someone brandishing such a thing.

  • @jkobain
    @jkobain ปีที่แล้ว +3

    Yeah! More from Ben!!

  • @azcharlie2009
    @azcharlie2009 ปีที่แล้ว +5

    I never got to be a EE, but I've always loved electronics. Did the build a color TV thing through DeVry, and I'm a ham radio operator. Built circuits to run stepper motors for my telescope, etc..... I really enjoyed this video. I kept waiting... When were you going to introduce the diode? One thing I learned early on too was, it's not the voltage that kills you. It's the amperage! This is a great illustration! Thank you!

    • @KevinSamuelsKid
      @KevinSamuelsKid ปีที่แล้ว

      Become an electrician

    • @azcharlie2009
      @azcharlie2009 ปีที่แล้ว

      @@KevinSamuelsKid Instead, I decided to be a democrat politician. Made millions that way.

    • @KevinSamuelsKid
      @KevinSamuelsKid ปีที่แล้ว

      @@azcharlie2009 hahaha awesome

  • @noimagination99
    @noimagination99 ปีที่แล้ว

    Excellent explanation and demonstrations! Building from the simplest example, easy to understand, to the fast automatic circuit, excellent teaching!

  • @vaibhavkapadia1
    @vaibhavkapadia1 ปีที่แล้ว

    the way you teach concepts and convert them in real time circuit simultaneously is awesome

  • @drivers99
    @drivers99 ปีที่แล้ว +6

    I love staying up late working on a Ben Eater project (8 bit computer; just added the bus and added 4 out of the 7 modules to it) and then there’s a new video out this morning just making my day even better :) Now I want to look up how to do 9V to 5V so I can power the computer with 9V. Oh wait, would a simple voltage divider work or would that waste energy in the resistor? Guess I’ll go find out!

    • @murasaki848
      @murasaki848 ปีที่แล้ว +1

      I'm actually curious if you got it to work with a simple voltage divider. My back of the envelope calculations were questionable as to whether it would work (and especially work with a narrow enough voltage swing and simultaneously without letting the magic smoke out of the R1 resistor on the divider), especially since I can only guess at your overall maximum current draw (which will vary wildly depending on the operations your computer is doing). In any case, if the voltage divider doesn't pan out, try getting a 7805 regulator (a very popular device since before I started haunting Radio Shacks in the late 1970s) and a heat sink. The 7805 is still just a linear power supply, so you'll still be dropping 4/9 of your power into that heat sink powering it with a 9V battery, but it might work well enough.
      Edit: If you've never heard of them before, the 7805 is based on the LM340 adding components for a fixed output. They also have internal protections against thermal and overcurrent. The "8" in the part number is the positive series, and the "05" means 5 volts. They make others, most notably the 7812 (+12V) and the 7905 (-5V, the "9" indicating negative going), two others near and dear to me. 😊

    • @davelowets
      @davelowets ปีที่แล้ว

      That would be a very wasteful, low current, HOT, circuit... 🔥
      As mentioned, a simple LDO regulator circuit would be the next step up, that would work ok. 1 I.C., and 2 capacitors is all that would be required.

    • @drivers99
      @drivers99 ปีที่แล้ว

      defining acronyms
      LDO: Low-dropout regulator

  • @JaenEngineering
    @JaenEngineering ปีที่แล้ว +5

    IIRC this can, with a little reconfiguration, be used to create a negative voltage rail for use with devices (like op-amps) that require a dual power supply

    • @CutoutClips
      @CutoutClips ปีที่แล้ว

      Yes, I've built a circuit like that before

  • @ET_AYY_LMAO
    @ET_AYY_LMAO ปีที่แล้ว +1

    I really like your videos, the way you start out with very simple schematics and build upon that is a good insight into the process of electronics engineering.

  • @pascalbruyere7108
    @pascalbruyere7108 ปีที่แล้ว

    I wish electronics had been explained to me like this when I was an engineering student some 30 years ago. This is Cristal clear.
    Thanks.

  • @gsuberland
    @gsuberland ปีที่แล้ว +4

    The two complementary clock signals can also be easily generated from a microcontroller's GPIO pins if, like you suggested at the end, you want to generate a higher voltage rail for a particular interface like RS232 or RS485. Driving the GPIOs straight into the capacitor is probably not a great idea, since the maximum source/sink currents on the MCU would probably be exceeded if you did that, but the MOSFET arrangement shown earlier in the video would work perfectly, with one MOSFET attached to each pin.
    The total maximum supply current is quite low in this design due to the resistors, and lowering the resistances significantly decreases efficiency, so if you need more drive current, you can use a MOSFET push-pull buffer on each of the two clock phases. Designing these push-pull MOSFET circuits to avoid shoot-through (where both MOSFETs turn on at once and short from +V to GND) can be a bit tricky if you try to do it from scratch, but there are really cheap MOSFET driver ICs designed to do exactly this (often called "high-side/low-side drivers").
    For bonus points, you can set up your MCU to output PWM at 50% duty cycle on a single pin (this uses 0% CPU because the PWM is generated by a hardware peripheral), then hook up a MOSFET as shown in this video to invert the output, and use the non-inverted and inverted signals to drive the two separate MOSFET push-pull circuits from a single GPIO pin.

  • @samplesandtests
    @samplesandtests ปีที่แล้ว +4

    maybe in a future video show the current at the battery and the current at the end of the multi stage charge pump (going into some load)

  • @ColinTimmins
    @ColinTimmins ปีที่แล้ว

    Wow that switch, cap, and scope demonstration was fantastic!

  • @BlaqRaq
    @BlaqRaq ปีที่แล้ว

    Being an old-ex-electronics student, I really enjoy your channel. Keep up the good work.
    I can only relive these lab activities through these videos.

  • @TristanCunhasprofile
    @TristanCunhasprofile ปีที่แล้ว +16

    To test 9v I always licked them, do you think I'd be able to tell the difference between 9v and 18v after the charge pump?

    • @Anatrok
      @Anatrok ปีที่แล้ว +15

      yes, what does 18v TASTE like?

    • @zachbrown7272
      @zachbrown7272 ปีที่แล้ว +10

      as someone who has licked 18, the answer is very very much yes. it goes from tingle to pain.

  • @andrejwalilko634
    @andrejwalilko634 ปีที่แล้ว +4

    its a good thing that blue multimeter is rated for 1.21 giggawats

  • @Chemitronic
    @Chemitronic 2 หลายเดือนก่อน

    Beautifully clear and illustrative. Thank you for this video!

  • @WestIsland6505
    @WestIsland6505 ปีที่แล้ว +2

    I really appreciate to be told why a component is needed and what it actually does. It's kind of like the teacher wanted to see how you came up with the answer on a math test. I like your method since I am a beginner at the age of 68.

  • @meeDamian
    @meeDamian ปีที่แล้ว +9

    How would available current/Amps change between steps? Also, I'd really love a schematic for this; I know the extra parts might be obvious to many, but for me they're just a mystery 🙈.

    • @alexc4924
      @alexc4924 ปีที่แล้ว +1

      Each switching node, and the original input, effectively uses up the same amount of current that you get from the output. If you have 5 stages (plus the input) and want 5mA out then you need 5mA into each stage, a total of 30mA. Of course it only flows half the time so it's 10mA when it is flowing.

  • @donprefontaine3237
    @donprefontaine3237 ปีที่แล้ว +3

    Wonderful! Are you going to do a 6502 UART video next?

  • @Aka_Umash
    @Aka_Umash ปีที่แล้ว +1

    I really wish you're my lecture for my module. You're teaching and explaining what the 99% of lecture aren't doing.

    • @watchdogu.s.a.8973
      @watchdogu.s.a.8973 ปีที่แล้ว +1

      FYI: "lecturer". A "lecturer" would deliver a "lecture" to the listeners.

    • @Aka_Umash
      @Aka_Umash 7 หลายเดือนก่อน

      ​@@watchdogu.s.a.8973true

  • @paulvild
    @paulvild ปีที่แล้ว

    I found that presentation clear and concise. I was able to follow along and even could imagine using this knowledge to create my own circuit. That is a very rare experience for me. Thank you for breaking it down into these steps!

  • @SonOfSofaman
    @SonOfSofaman ปีที่แล้ว +4

    "If you hypothetically wanted to do that for some reason" ... hmmmm

    • @HighestRank
      @HighestRank ปีที่แล้ว

      Watch time code on video??

  • @garymucher4082
    @garymucher4082 ปีที่แล้ว +2

    Great display of simple voltage doupler to whatever voltage you want. Yes, the current isn't there, but the voltage certainly is and that same circuit is/was used in a lot of circuits for higher voltages... Thumbs Up!

  • @GuildOfCalamity
    @GuildOfCalamity ปีที่แล้ว +1

    Ben makes the best videos, very concise.

  • @Guilty-xu6gs
    @Guilty-xu6gs 4 หลายเดือนก่อน

    Absolutely awesome ... you are a great teacher .. I can't say enough or give you a lot of praise. The way you explain what's going on step by step and the purpose of each component, ect . You do it all in record time and you don't put me to sleep ... good job !!!

  • @Kevin192291
    @Kevin192291 ปีที่แล้ว +1

    Your videos are always so clear and well put, Thank you!

  • @realdragon
    @realdragon ปีที่แล้ว

    Your videos are amazing, you explain things in easy to understand terms. Take the problem and then tell the solution step by step how each component works and how it evolves into final form

  • @sparkfishes
    @sparkfishes 7 หลายเดือนก่อน

    Excellent demonstration/explanation.......love the oscilloscope

  • @benjaminkeebler4218
    @benjaminkeebler4218 ปีที่แล้ว +2

    Glad to see you back putting out informational videos! For a while there I was afraid we'd seen the last of your amazing content.

  • @kienocard
    @kienocard ปีที่แล้ว

    This is one of the best demonstrations of a voltage multiplier I've seen on YT

  • @rabidbigdog
    @rabidbigdog ปีที่แล้ว

    "Breadboard-Taser" is not a combination of words I would have ever expected. Thanks for the laugh Ben.

  • @goofyrulez7914
    @goofyrulez7914 ปีที่แล้ว +1

    Thank you. I've always been confused about this circuit but your explanation makes sense.

  • @MarekWoi
    @MarekWoi ปีที่แล้ว

    Magnificent way to explain it! I'd love to see a video explaining proper boost converters in this sort of easy to grasp, step-by-step way.