The problem with dimming AC LED Light Bulbs || DIY Trailing Edge Dimmer
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Aliexpress:
1 x ATtiny85: s.click.aliexpress.com/e/_dSJ...
1x HI-Link 12V Power Supply: s.click.aliexpress.com/e/_Bfh...
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Ebay:
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1x HI-Link 12V Power Supply: rover.ebay.com/rover/1/711-532...
1x 1206 Resistor kit: rover.ebay.com/rover/1/711-532...
1x 1206 Capacitor kit: rover.ebay.com/rover/1/711-532...
In this video we will have a closer look at the electrical challenges AC LED light bulbs offer when it comes to dimming them. That means I will tell you a bit about how they are built and we will also determine the differences between leading edge and trailing edge dimmers. At the end I will then show you how to create a DIY trailing edge dimmer that you can even build at home for cheap. Let's get started!
Thanks to JLCPCB for sponsoring this video
Visit jlcpcb.com to get professional PCBs for low prices
Music:
2011 Lookalike by Bartlebeats
You make all this black magic in our daily life understandable. Thanks so much!
Not many KZhead creators are worth subscribing but you are exceptional. The topics (at least to me) peak my interest and are well plus throughly explained. I always learn something practical. Keep inspiring.
This video's iteration of "and I will see you next time" was the most striking one so far.
8:23 Only 2$ plus 20$ shipping
That's on the Fast Shipping option, I think it's UPS or one of those. The cheap china post is like 5€-7€ but you have to wait a month
Maverick PT Still better to make your own...
@@GRBtutorials For 8€? I doubt that you can achieve the quality at home when compared to JLCPCB. If you can wait, it's the best option by far
Maverick PT Well, it’s not like I’m going to use them for production. For one or two PCBs, it’s usually cheaper, because you don’t need 10 of them for prototypes, and it’s much faster, which allows you to advance in your project. Not to mention what happens if you screw up... That happened to GreatScott! once, and he gave up on the DIY or Buy!
@@GRBtutorials In that you're correct but I like to have a proper PCB on my final versions of my projects. It brings the overall quality up. Different tools for different ends right? PS: You can order just 5
There's absolutely no need to hit that notification bell my friend because I always know that you always upload videos on Sunday... Every Sunday evening I open KZhead app and voila there is your video on top of my feed. Now I've no connections with electronic/electronics but man I like watching your videos. Love from India... Keep up your great work GreatScott
Thank you so much for this video, I have been waiting so long for a comprehensive video on this subject. Keep up the great work!
Another great video Scott. This was an enjoyable watch. Thank you for showing a commercial version and your version.
The ATTiny dimmer is an interesting project on itself. Thank you!
You are great teacher in the world. I always wait for your next video. Thanks sir.
Great Scott! Finally a useful ad! Downloading “my measures” right now! Hope it’s half as good and useful as this channel’s content... Thanks for these videos! Very interesting and easily understood tidbits of EE. With plenty of details.
8:23 hahaha, when the shipping cost almost ten times than the product, very relatable.
will try to do it at home and see the cost also if you order more you will pay same shipping ;)
yes but its comparitvely cheaper than going to china;)
you go to so much effort in your videos, extremely professional and educational
I love that you are acheiving the same thing with a microcontroller and with discrete components. It's really interesting to see how to replicate a seemingly complex project with these discrete components.
Yes microcontrollers are overused
Hey Scott! Can you show us how works a Vacuum Fluorescent Displays? VFD, its a little bit old technology but looks still awesome ;)
I can put it on my to do list.
Here you go - kzhead.info/sun/ltCOhqmxoJGPgYU/bejne.html
I thought VFD meant Variable Frequency Drive. For 3 phase motors
i always wait for his last moment expression " and i wiiiiill seeeee youuu next timmmme " ... your videos are such a help, though a bit advanced to understand.
Great Scott!! Another amazingly entertaining and educational video! Thank you for all the top notch quality content 😊
OH MY GOD! Great video with a nice ending (and I will see you next time), such big information can't get into my brain, they are all useful, thanks!
The video we’ve been waiting for! Thank you!
Thanks again Scott! Its very inspiring for my lab! I'll show this to my students!
Thank you for following up with this! Simply incredible!
Your voice is so calming. Great work, Great scot!
After a long time . good to see you again
Beatifully made and informative video, as always!
"... and i will see you next time!" LOL! gets better every video.
like a commercial jingle. lol. wait...
i always get to learn many things from your channel!!
Videovorschlag: DIY or BUY: Qi Charger (wireless charger)
Would love to see this!!!
Honestly, with the cheap prices of these chargers on eBay, Aliexpress, etc. it wouldn't be worth the hassle to get the windings just right. Not even considering the prices of the individual parts.
Thanks , your videos are always inspiration for me and thats why i need a help in choosing original 18650 vs fake.
This video answering my big question of RobotDyn AC dimmer stay flickering when setted up power in 5%. Thanks!
This is the missing part of my project. Thanks great scott!!!
Thanks GreatScott, I was researching on FL5150 and u made it.
Me too, with ESP8266/32 will be perfect, no more ZC loop to care about
@@youcefasb6293 Rolling average is easy to implement to filter out ZC
I built some dimming circuits following the ideas in here, it all works but getting it certified to install in an actual house is a different matter. I ended up building a low voltage control module to work with a certified 0-10v dimmer such as Finder 15.11
I needed this video badly as I was trying this from your previous video ....and one thing I understood that I will stay from mains power
If you're a maker, every maker has to go through a design that when connected to mains power, goes kaboom to become a real maker. It's like the coming of age for us.
very enlightening as always
Pretty fantastic job, dude!!! 😃
Lots of things learnt from you sir...
Hi, nice video. Used a standard triac to dimm one 5W LED spot, never had issues with hold current.
Incredible! JaguarTrials loves you Scott! Keep doing your thing and let us know if you need any Netflix or Hulu accounts for a giveaway to your subscribers!
Great video...learnt many things
Das ist gut video, great explanation and illustration.
Scott is very cool and a bit high voltage as well. 💥💥💥 💟
Great video, thank you for sharing this.
your amazing GREATSCOTT👍👌
This is why I still use incandescent bulbs. I have over a dozen dimmers in my home controlling upwards of 60 bulbs. Over 40 are in the basement alone on six different switches. I tried numerous brands of LEDs over the years and they all have different cutoff voltages. Some will dim great while others on the circuit go out entirely or are brighter than the others. Back in 2016, I bought over 1,800 60 Watt bulbs which should last over 20 years.
1800 bulbs? HAHAHA!! Awesome! How many do you still have today (march/23)?
@@talesmaschio -- Probably only down 40 or 50 by now. Still have close to what started with. Was a really stupid idea. Basically I heard they were "gonna ban the bulb" and I freaked out and overbought. ¯\_(ツ)_/¯
@@pmgodfrey I don’t see it as a stupid ideia. What impressed me at first was how many you bought at once. Anyway, you made a decision based on info you had at the time. Also, LED lights used to be very high quality, today most manufacturers make cost oriented pieces of crap which main function is to quickly turn into electronic waste. Your incandescent bulbs may consume a bit more energy but they show a much nicer color temperature and impose zero harmonic distortion to the electric grid. So, you’re not that wrong.
@@talesmaschio -- One of the biggest issues is how well they dim. Since most are built with low cost components, you can't expect much from a switch mode power supply, especially when they have such a wide operating voltage range. So they dim to a certain point and then some go out, others don't. Plus ones I've used in our rentals seem to be of horrible quality. They're they basic ones you find at any Home Depot. Might have just been a bad batch because I have had a few here and there that still work from 10 years ago.
Very helpful video. I like it 👍
Very interesting ! Thanks for sharing !
New if only I could purchase a commercial version of the high quality leading edge/trailing edge dimmer you made.
Awesome as always..
Great video, thank you.
Wow it's amazing
Amazing skills!
Stay creative and I will seeeeeeeeeeeeeeeee youuuuuuuuuuu nextttttt time❤️❤️❤️
When I use filament light bulbs which doesnt have driver just capacitive dropper I always wire a switches to have one with capacitor which dims the bulb. It’s especially useful when you want to make a lamp that just lights like very old bulbs.
Great video. Subscribed.
great work
Hi Love your video, and I'm with you on that ( it's just arrived but I can't wait to build it scenario), I've been there myself! Anyway I recently made my own dimmer but what I did was recitfy mains, step it down and ,P.W.M. Via a 4029 counter ended up with single push button control flipflop direction every alternate button push illumination levels remaining when I remove input, also has a back up battery, BUT BEWARE OF CONTACT BOUNCE use MAXIM'S switch debounce IC. Kind regards Warren
Sir the video is realy nice and I realy enjoyed it So thanks for entertaning me
Nice lesson Thanks for sharing :-)
Thank you, very nice
A video on programming PIC microcontrollers would be awesome, especially as there's so little on KZhead. Thanks!
Hi Ivan. Did you ever visit the JAL Website, see: justanotherlanguage.org/ ? I even made an Arduino like board so that you do not need a programmer to program it. See: www.instructables.com/id/JALPIC-One-Development-Board/
Very nice . Thanks.
I used to have a homemade dimmable AC LED LIGHT. It consisted of a simple inductor to limit the AC current, then a bridge, cap, and the LEDs themselves. It worked well, although it was a bit bulky. (Would still have it, except that I tripped and dropped it and it broke)
Great video, thanks for putting together. I like the pens you're using. Do you mind letting us know which ones are in the video? Thanks!
Thanks man
Thx GreatScott for guiding us about every electrical experiment Your Channel is the best. Like this comment if you agree peace
Keep working hard on it
When you see the GreatScott intro: Ah shit, here we go again.
the german guy have nice videos. .thank you.
Very Nice, This raise some questions though : -Why is there two mosfets and not only one ? -Why is the 12V power supply so big and how is it done in the commercial version which appear to be compact ?
loved it.❤💓🤘
Thanks! Won't be using JLCPCB though.
WOW - thanks for including normal mortals who can follow along - this used to be what is the word - pretty esoteric to say the least. Dedicated hobbyists only - and we never got cutting edge circuits - unlike Wozniak in the day (whose dad was an HP engineer.) So for most of us, we are looking how to spec an inexpensive effective dimmer, and not in parts for the hobbyist, so that we can quickly solve the issue and move on, unfortunately - time being limited. Now at least I can interpret dimmer schematics.
Excellent video! Thank you for share. I would like to know if you still using the IRF840 on the las PCB with de FL5150?
Hi Scott very informative tutorial. Can you make a iot alexa dimmer control it will be very interesting and helpful
Hey scott i just create a drimmer, using two half brige IGBT and a variable duty cicle n555 arrangement, swiching at 5khz.
Great Video, as usual Scott is a pro. Can you please tell me why you have 2 series potentiometers on the last design?
Hey Scott, if you connect the terminal blocks to each other before soldering, they don't move as much when you screw the wires in. And look slightly more professional :)
really interesting
Nice video man 🙄 Cool
Hey great Scott....you deserve even more fancier intro!!!!!
Nice thanks. How about adding up down push button design in you series of dimming AC LED bulbs?
very very good
Electroboom viewers like here
Both these channels are my favorites. They are the real and genuine guys that everyone should watch.
full bridge rectifieeeeeeEERRR
@@hmangaihzualatlau468 Yeah he's very funny😂.
Except Scott doesn't hurt himself on a regular basis.
@@johnmiller4859 Yeah.Mr. Mehdi would be the person who survived the most electric shocks ever in this world😂😅. Some are jumpscaring ones😅
With a light sensor you can also measure how well a lamp (dimmed or otherwise is producing light... I use a s9067-01 from Hamamatsu with a bias supply and a resistor connected to my oscilloscope. Allows me to see the lux levels hitting sensor at high frequency to discover just how much of the light output is flickering and how much is smooth. Worst bulbs/led drivers I found has almost 100% flicker and not surprisingly the best have almost 0%. Most are unfortunately closer to the 100% range. Not fun if you are an epileptic.
Nice
Faster soldering method for SMT: Instead of adding solder when you add the parts. Apply solder to all of the pads first, than just place the part & reheat using an iron or hot air workstation. Use tweezers to place and hold the part when you solder.
I do this with 603 parts that have 8 leads. It works! A little bumpy sometimes, but yeah!
Very good Congratulations. I am an electrician and one of the major problems I face when using dimmers with led lamps is when I turn on more than three lamps on the same circuit. For some unknown reason, grouping multiple light bulbs always causes unwanted flicker during dimming. Any ideas on what causes this problem?
Just try with a fan regulator and see the results. I hope you can dim your light accurately. And it will work.
Great video as usual!! I was reading the FL5150 data sheet it says it can be controlled by a microprocessor with a logic signal, what exact type of signal would that be because I, couldn't get PWM to work as yet?? And I don't think that is what it means anyway.
Very nice little ic for that use! How exactly does the Mosfet output stage not short to "ground"? The hit terminal would be shorted to ground every time the get turned on, right?
nice!
Interesting video! Will this circuit work as a speed controller for a universal AC/DC motor (such as a Dremel tool)? Thanks.
The final circuit diagram has a connection from between the two N Channel MOSFETs to GND. That connection was not in the initial diagram at about 7:15 into the video. Does that circuit then not connect AC Live through the load to GND and AC Neutral straight to GND. Perhaps GND is not Earth which would imply Earth leakage and thus trip an RCD? I think that's how and RCD trips, if the current going into Live doesn't come out the Neutral it must be leaking to Earth and thus trips. I'm sure your circuit is probably correct, but why is it correct? Even if you're only connecting AC Live to the ground reference of your DC Circuit it still seems a bad idea? What am I missing?
It's outlined in the FL5150 datasheet on how the different configurations work. Mainly, GND is a floating reference for the FL5150 so it can do things like measure voltage drop across the MOSFETS to monitor current limits and siphon energy for itself from the AC line to charge itself with a DC bias to neutral. If neutral wasn't available, they would have to use chassis ground. Neutral is also used as the zero-crossing reference to monitor when to switch. This circuit only switches the hot line. It doesn't do any control with neutral besides monitoring the zero crossing. When Great Scott attached two terminal blocks to connect two neutrals, that is purely for convenience so that he doesn't need to use an in-line crimp connector or solder and heat shrink to connect the load's neutral connection to the neutral coming from a power socket.
Good one scott👍
Which type of dimmer is more suitable and power efficient for inductive load such as fans? Also is it possible to drive single phase ac motor as energy saving dc inverter motor?
Great project ! I just ordered the PCBs. Any idea what's the max power could be driven ? I have a 40W LED lamp. It is fine ?
Hi Scott, Just to clarify I would be using your squair boartd with FL5150 chip Thanks you kindly Kazem
Love the auto captions: "at which point the bulb behind to flicker" becomes "at which point the Pope begins to flicker"
this guy : made a tutorial on how to make a dimmer some chinese dude : 我看到了钱
Do the chinese characters mean "its free real estate"
This is nice! Can you please show us how to make a LED dimmer controller that uses PWM not a potentiometer to control the dimming please?
Interesting !! as usual . What about inductive loads like an AC FAN ? it would be Humming ?