Let's talk about comparators
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- เผยแพร่เมื่อ 20 ธ.ค. 2019
- Let's talk about comparators
PCBWay Big Xmas Sale Nov. & Dec. Shopping Festival!: www.pcbway.com
Yes!! I now have merch: teespring.com/stores/learnele... Electronics themed T-Shirts!
HEY YOU ABOUT TO POST SOMETHING STUPID:
Yes, I know my hands are large/fat. It's because of a heart condition I suffer from called Congestive Heart Failure. Here's a link to some information about CHF: cle.clinic/2TdS2Ux
One of the symptoms is that is causes fluid retention, mostly in the hands, feet/ankles, and face.
It will kill me one day. I'm doing ok right now, but someday...
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Here is all the gear I currently use:
Oscilloscope 1: Rigol 1054Z amzn.to/2PRybtN
Oscilloscope 2: Siglent SDS1202X-E amzn.to/31Kk1yH
Power Supply 1: TekPower TP3005N amzn.to/2TeQnxI
Power Supply 2: RUIDENG DP50V5A amzn.to/2sNicSe
Signal Generator: JS2800 ban.ggood.vip/d9vk
DMM1: Owon18B amzn.to/2SbIGLs
DMM2: Aneng 8008 amzn.to/2sNQncI
DMM3: Aneng 8009 amzn.to/2S5qeEp
DMM4: Uni-T UT801 amzn.to/2S89SuL
Soldering Station1: Zeny (Yihua)862D+ amzn.to/2S49z4e
Soldering Station2: KSGR T12 amzn.to/2Wk7Dn9
Light Meter Smart Sensor AS803 amzn.to/2B2gyRg - วิทยาศาสตร์และเทคโนโลยี
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Another really useful video. I hope to really dive in this next year - finish equipping a bench, start building & relearning electronics know-how. Thanks for your channel & expertise. Merry Christmas! 🎄
More quality stuff from learnelectronics. Very cool circuit, I'd certainly like to see more. Happy Christmas and Merry New Year to you Paul!
Yes, more of these breadboarded demonstrations please, especially based around the function of an IC in common use. Going to have to get myself one of those IC selection boxes. Have a great Christmas. ⛄🎄🎁
Merry Christmas. Thanks for all the hard work making all the videos
Thank you, same to you!
Please do more of this stuff!!! It's awesome!
Another interesting vid Paul, would love to see more using all of the ic's. Hope you have a great holiday season.🎈🎈🎄🎇🎄🎈🎈
Merry Christmas. Great video. I'm mainly a SW hack but it is very interesting to see what and how these components work. Thanks and keep up the good work.
Hey there Paul, have a very safe and enjoyable Xmas, thanks for all the entertaining, informative videos you do with your not too serious, humorous style, I really enjoy them, cheers.
Hey man! Thanks for this video! My daughters and I just built a circuit to help us know when our drone battery is charged!!! We're all very excited. This has also given me a brand new excitement for tinkering with electronics again!!! Great job. Keep up the good work!!
Definitely more please Paul. Merry Christmas from Wales.
Nice one ... Merry Christmas & Happy New Year from the UK ...
Connect a male banana plug with an aligator clip and you can use it as a multimeter probe. Banana plug will go into the multimeter and you can clamp the aligator clips anywhere.
Great video, useful breadboard circuits and how they work are my favourites,thanks for you hard work
I have been looking for this circuit for a week now but I never found one that was explained in a way that I understood thank you so much for this piece of information
Nice job Paul! Thanks for the great videos!
Merry Christmas, and thanks soo much for all the videos , for ALL the knowledge, I truely appreciate it, I'm hopefully getting to where I CX an show it a bit, anyway thanks again!
Great video Paul and lots more like it because I can understand them Christmas Wishes from over the pond
This was really cool! Thanks and Merry Christmas :)
Yes please, do more and a merry christmas to you too☃️☃️☃️
I love that little chip kit im going to look for it in a while... get me self one for X-Mass!!
Always wondered what a comparator was for and how it worked. Thanks! Also love the intro message today. :)
Great video! Merry Christmas!
More comparator circuits please!!!
Please do more of this! Merry Christmas
You explain things so straightforward....
Merry Christmas. Would be awesome to see more vids on all the ic's in that box. I have the same kit!
Happy Christmas! Where did you purchase It?
@@lelesecchi6140 looks like its out of stock: www.amazon.com/gp/product/B07V1PKDZS. Paid 25 bucks for it a couple months ago.
Great video Paul, I love these circuit building videos. Where did that cool chip kit come from, I would like to buy one? Merry Christmas Paul and have a happy new year.
Thank you for this, and the follow up video. I've been trying to figure out a simple circuit to turn off something once a voltage got below a certain threshold.
Well dang that is a handy looking little kit of Ops and Amps. I actually have a Need for a few of these circuits for my Solar / Wind Power Wall. I will employ them to Stitch Relays directing Power away from the Battery when filled to be used for other purposes.
Great video, I love op amps and comparators and I've been making a similar low voltage cut off protector circuit. My only issue with your design is wouldn't the control voltage across the divider drop as the batteries drain? And wouldn't it end up always being the same voltage difference compared to the potentiometer as they're both essentially voltage dividers? In my circuit I used a zener diode to get a steady voltage to then compare with a potentiometer output, what are your thoughts on this?
One comparitor project we did in school was to make a mini bar graph voltmeter with a multi-node divider and a half dozen comparitors.
I have seen that the led was flashing when you turned the potmeter half the vcc. Strange. Thanks for the great video and happy newyear from Amsterdam, The Netherlands.
Well Done!! Very useful comparator circuit that has ( As you put it ) a C#@p Ton of other uses. Great Video!!
Nice job Paul. Do this with a schmitt trigger. One more interesting circuit would be an digital potentiometer.
GOOD PRESENTATION,PLEASE DO MORE ON COMPARATOR CIRCIUTS
Please do more of comparator circuits.
Also what are the part numbers of the items used today and where do you order them from?
Awesome video. I'm trying to make a circuit where the battery is cut off when the solar panel going into the buck converters output voltage falls below.
Could I send all the outgoing current/voltage coming from the solar panel into a capacitor and then measured that voltage on the capacitor on the LM324N ?
Because capacitors are really affected by current.. ? Is basically an empty space in the middle of a capacitor.
"Good", very good 😉 I would like to see more troubleshooting circuits 😎
Love this channel! 😁
Great circuit and i would like to see another follow up...perhaps a small battery power arduino controlled sensor to include actual battery voltage monitoring.
Really great stuff there, dude! 😃
I need to use more my protoboard... I need to solder pins to some of the boards i normally use, to do that. 🤔
Excellent video, thank you. That’ll come in handy for a recent project. So the battery source would need to go through the comparator circuit before feeding the microcontroller etc?
I tried to look for that kit, any idea where it’s from? Thanks
Nice! How about a step up 5V boost converter for 18650's?
I want you to do one big project where you use as many Classic circuits you should know about. As a series. And no more LED's. Thats what I want for Christmas ;-)
Nice jumper cable kit... How about a link on that?
The resistive divider should be monitoring the battery voltage . When the battery voltage drops the divider voltage will also drop. The potentiometer should provide an adjustable voltage from a reference voltage. Use a zener diode around 6.8v or better still an TL431 voltage reference. You could even use a LED fed by a constant current source as a voltage reference but watch for temperature drift.
I really enjoy your channel i must say
My question is what is the best starter kit to get in electronics?
It would be neat if you could take two of these and turn one on at the peak of a voltage and the other on at the "valley" of a voltage or to even do this with a digital input.
Thanks for making the video more vid like this wold be helpful. where they purchase the box of chips? Also if not too much could include dwg we could down load and build?
I would like a box of IC selection like you have. Do you know where to get them? (Europe). Trying to get chips from China right now but they are stuck somewhere in the delivery for more than a month now.
I would like to learn how I could wire a comparator to signal a low fuel light to illuminate. Would that be a video that you could show me ?
Does the LM393 work in the opposite direction so for example if I have a 12v battery I want the output to be off, but when the voltage goes above 14v the output will be on
Great stuff Thanks
Splendid little set, whoever makes those boxes must be a billionaire by now.
I'm just practising for Wednesday - mince pie in right hand and a glass of sherry in the left - happy christmas Paul - and everyone else have a good one.
Merry Christmas!
Great!
Could this be used in an Overvoltage protection circuit?
More
Merry Christmas and Happy New year.
i tried this on tinkercad breadboard simulator, but the output is low 3.33mV. LED ofcoz doesnt light up. so where did i do wrong?
can you do a video on the electronics needed to create an ION drive! people show how to build one but they then hook it up to something and dont explain what it is. in particular one person uses a battery for a small 12 inch boat. you use something called a VARIACK? and then some type of transformer? but i dont see how this could be in a little boat.
Nice video. Kinda knew what a comparator was, but now for sure. Sorry, this has probably been asked before but can you share the vendor or model of those pointy probes that fit in breadboard holes? I teach simple breadboarding to HS students and these would be very useful.
Probemaster
Merry Christmas Paul! I love it when you make these little projects and especially explain them in a simple way so we can understand what's going on.
My request is: Can you make something with the UC3842 or the UC3843 chip? It would be nice to make a little 9 Volt power supply from it which can be powered by a few 3p or 4p lion cells. It would also be practicle because we can use it to power our JVYTech DSO 150 which would be nice :) And maybe you can also tell us the secret how an additional simple circuit can prevent that the lion cells will be used below 3 Volts. And maybe the MC34063 chip is also applicable if this needs less components which would also be nice.
I'll see what I can do
@@learnelectronicsThanks, I like it! :)
How about a voltage comparator and voltage divider that an be used for a cnc plasma torch height controller
Nice! I was just thinking of buying that IC kit even though I already have a lot of them. It's a definitely great gift (or self purchase) for someone who has components but doesn't have many integrated circuits yet. Nice jumper kit too.
I like the pinouts on the lid. Very helpful. Are they on ebay?
@@FEMADEATHCAMPCONTROL Yeah! Pin layouts are great. Component sellers are way too stingy with providing info like that. I don't see it on Ebay. I did find it on amazon while search "integrated circuit kit" but only 1 left. I bet it sells out and it takes a while before they restock, but then they will stay stocked after that.
Amazon
Thanks to both of you, will take a look.
Very nice!
Did you provide links for the items you used in this video???
Yeah make some more, have a great one also.
Awesome!
Nice video thanks.
Looks like your circuit oscillates near the threshold. Show how to stabilize the circuit with positive feedback using capacitor and/or resistor. Use resistor/zener divider as reference instead of resistor/resistor divider.
Can one make a negative input from two buck converter connected to a common power supply? My thinking is that it can not be done, but I'm not positive.
Pardon the pun.
Another great video, thank you very much. A little schematic drawing would make it even easier to understand. Your basic videos are great for many viewers, continue this way. Thank you
Regards from Hannover Germany
just noticed your meter probes looked like they were carrying voltage to the input when you were trimming the pot... just looked over the vid again and yes it did look like that way... cool.. merry Christmas Paul!!
Are comparators a better way to go than using an op amp wired s a comparator?
Is it possible to add thermocouple to this comparator?
Comparator circuit: Relaxation oscillator with at least three decades of frequency (1-100MHz?) and adjustable duty-cycle? Fast edges? If that's too easy, add adjustable low-power (zero mean drift) Gaussian noise jitter to the oscillator frequency? 0-10%?
Where to get this pin table on the LMxx box?
Nice video! Merry Christmas and Happy New Year! de WQ!I 73'S
Where can I buy the ICs kit?
Merry Christmas
Watching op amps demonstrated in circuits is much more helpful than simply listening to math formulas.
I wish You Merry Christmas and hope for mutsh more You Toubes from You
great channnel!
Where did you purchase the IC kit? Happy Christmas!
I didn't, it was sent to me.
MERRY CHRISTMAS!
Is there a water leakage in your room?
This makes no sense, are you saying you need an extra power supply to monitor the voltage of the batteries?
MMMMMH FRESHHH
Just FYI...you have some dead links in your gear links (last 2 are dead, 3rd from last links to a "no longer available" product) That's all I checked so far
Pin 3???? Not shown on pin out
More you do the more we will want.
Why this channel has less subscribe
i love this , but what about the ADC !!!! man you're lettin one of your fans down !
Window comparator.
BTW Have a fantastic Christmas
As of last night, I’m falling down the TH-cam rabbit hole
I would not be able to understand this video without an understanding of a voltage divider, but....cool to see a comparator
Voltage divider provides a reference voltage...but not a useable voltage for powering Shit
But just one to use for checkin on stuff
To protect lil gizmos from exploding and what not
You sound exactly like One f Jeff.
9 people can't figure out the duty cycle for a 555
Cool, I was looking for something about that particular chip as I found one in my junk box, well it came in a mystery package from Electronic Goldmine, they have these 5 buck junk boxes filled to the brim with crap from their bins. I don't know how they find the crap, probably floor sweepings from the warehouse or something but there is always tons of useful stuff in their packs, when ever I need solder or something that I want to be American, they are my go to guys, they even have mystery boxes of diodes capacitors and such, I have used a ton of things from them, when I first got into playing with circuits, I ordered a bunch of crap stuff from China but found them lacking in quality, if I build anything I care about or intend to sell, I use the products from the goldmine and not the crapware from China. It is good enough for experimenting I guess but for real product you want quality. Oh they have great solder, it may be a bit old but it is American made by known American makers My last roll was made by Kester came in a 1 pound roll and cost me 25 bucks with shipping. Well actually it cost a bit more as I hit the wrong shipping address and it shipped it to a campground where I used to winter before I lost my wife to cancer, cost me another 20 bucks to have it shipped to South Dakota from Arizona. Oh well shit happens but I have some wonderful 66/44 Rosin Core Solder made in 03.
Am I alone to almost always hear water falling sound in the background?
I have an aquarium
I dont get it.