8 awesome application of diodes in circuits.

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Electronic Wizard

Electronic Wizard

8 місяців тому

you will be shocked if you look closer to diodes, they are not as simple as you think, they can do various tasks in circuit and you need to know where to use a diode to be a great circuit designer.
in this video i will introduce 3 main type of diodes with 8 application of them in circuits, of course this is not all types and applications of this lovely component but it is enought to begin with diodes.
What is difference between ideal and real diodes?
How much voltage drop on a diode?
What are diodes are used for in circuits?
Where diodes are used in circuits?
What are main parameters of a diode to consider?
What is an ideal diode?
What is main application of diodes?
How many diode types are available?
How much voltage a diode can drop?
Why diodes are used in circuits?
What is a zener diode?
How to make reference voltage using zener diode?
How to use a zener diode to protect circuit from over voltage?
Here in this video you will get answer of these questions

КОМЕНТАРІ: 300
@jeffmoden4332
@jeffmoden4332 7 місяців тому
I don't often comment on videos and I'm not one to "subscribe" but had to do both on this one because it's obvious to me that you love to teach and both your visual aids and the order of revelation of your simple explanations are, IMHO, impeccable. VERY WELL DONE, good Sir!
@elewizard
@elewizard 7 місяців тому
It is an honor for me that you spent your valuable time writing a comment for me ​thank you for supporting me ❤️
@SteveRaynerMakes
@SteveRaynerMakes 4 місяці тому
I felt the same.
@lsambrexi6173
@lsambrexi6173 День тому
WAW!! It was the most beautiful coincidence when I met your channel.❤
@damienmilk3025
@damienmilk3025 7 місяців тому
Yours is one of the best electronics tutorial channels on UKposts. Thanks, subbed.
@elewizard
@elewizard 7 місяців тому
Thanks for the sub!🥳
@LambdaTechnology
@LambdaTechnology Місяць тому
A fantastic video for the hobbyists, and a great refresher for the professionals. Easy to follow, concise and very well executed. Thanks for sharing this and spending your valuable time creating this content 👍
@elewizard
@elewizard Місяць тому
Thank you too, for watching the video and writing such a encouraging comment 😃, so nice of you
@Denyzyne
@Denyzyne 8 місяців тому
Very helpful! I sure hope my diodes won't mind being in my circuits now! ✨😃
@elewizard
@elewizard 8 місяців тому
😂
@dimitrioskalfakis
@dimitrioskalfakis 8 місяців тому
good presentation. minor nuance though: at about 6:00 in the example of reverse circuit protection you referred to using a schottky diode but the symbol you used was that of zener ;-)
@elewizard
@elewizard 8 місяців тому
Thank you for noticing the point. Sharp lines are presenting zener diodes and curvy symbol presents schottky. 👍
@dimitrioskalfakis
@dimitrioskalfakis 8 місяців тому
@@elewizard well, an S and a Z are still different (inverted) whether you use curvy or sharp lines.
@tgetvtips
@tgetvtips 7 місяців тому
Your efforts sharing this valuable info are greatly appreciated. ❤
@elewizard
@elewizard 7 місяців тому
My pleasure 😊
@billporter149
@billporter149 8 місяців тому
Excellent presentation of diode capabilities and common usage.
@elewizard
@elewizard 8 місяців тому
Many thanks!
@sananjabrayilov5349
@sananjabrayilov5349 8 місяців тому
Man, glad you are back. Have seen your different videos about electronics (open collector, microcontrollers). Hope you'll add back them all. Subscribed already
@elewizard
@elewizard 8 місяців тому
Thank you for sub. I have face an issue with my MCN and because of that I have created new channel, I am going to add old videos along with new videos
@smilingdog2219
@smilingdog2219 8 місяців тому
I have so many questions about the magic of circuits and you answer a few. Thank you.
@elewizard
@elewizard 8 місяців тому
I will answer 😉more in next videos
@BillAnt
@BillAnt 8 місяців тому
A full wave rectumfryer never gets old as an electronics joke. lol
@elewizard
@elewizard 8 місяців тому
😂
@simbakali
@simbakali 8 місяців тому
I have subscribed immediately! Let’s wait for the next insightful videos. Bless you.
@elewizard
@elewizard 8 місяців тому
Awesome! Thank you! New videos are coming soon
@simbakali
@simbakali 8 місяців тому
@@elewizard Thank you so much 🙏As a beginner, I want to understand what is bandwidth of a signal. I have googled but can’t find a simple explanation of how bandwidth related with hertz.
@CableWrestler
@CableWrestler 8 місяців тому
Subscriber number 26 here! Just found your channel. Great content - thank you for taking the time to make this video.
@elewizard
@elewizard 8 місяців тому
Welcome dude. Thanks for sub 🥳🥳🥳🥳
@WynneGarnie
@WynneGarnie Місяць тому
This fellow is a legend, detailed explanation, and friendly teaching. Well done
@elewizard
@elewizard Місяць тому
Thank you dude for your warm and encouraging comment 😃
@mikepanchaud1
@mikepanchaud1 8 місяців тому
Nice video. It's interesting to connect a piezoelectric sounder to the output of the infrared receiver. You can hear the pulses and hear differences between different brands of remote!
@elewizard
@elewizard 8 місяців тому
Yes that is nice. But the sound fifference is not because of band difference, it is because of the difference in the code the remote sends. IR remote controllers are my favorite, I will do projects with that as soon as possible
@tgetvtips
@tgetvtips 7 місяців тому
Looking forward to your next video 🙂
@brianwood5220
@brianwood5220 7 місяців тому
You have a great channel, I have learnt a lot watching you. Thanks for sharing.
@elewizard
@elewizard 7 місяців тому
Thank you for watching
@startrek416
@startrek416 8 місяців тому
very clear explanation, it is good to collect knowledge in one lesson, well done
@elewizard
@elewizard 8 місяців тому
Glad you liked it!
@brucehatch6415
@brucehatch6415 8 місяців тому
Used, 3 t05 cans with 12 diodes in each(closest to identical as you can get) 1/2 of each can were used to pass + and the other half of the can passed - placed between 2 opamps. Out of one opamp +/- to Input of the next +/- the delay caused by the two18 diode strings gave us the ability to do limiting and compression on audio
@tanner1985
@tanner1985 24 дні тому
I appreciated the style of teaching, subscribed! Greetings from Italy
@elewizard
@elewizard 22 дні тому
Glad you liked the video, you arr most welcome my Italian friend 😊
@spyghetti
@spyghetti 7 місяців тому
This channel is great, I'm consuming each video at an alarming rate.. please keep it up, your examples and explanation is superb.
@elewizard
@elewizard 7 місяців тому
Wow, thanks!
@ServiceOrchestramegastore
@ServiceOrchestramegastore 8 місяців тому
you are a great teacher. thank you for shearing this knowledge.
@elewizard
@elewizard 8 місяців тому
Wow, thank you so much. Thank you for being here 😊
@ServiceOrchestramegastore
@ServiceOrchestramegastore 8 місяців тому
I like the positive mood you brings us with you...🙂 @@elewizard
@MarineElectrical
@MarineElectrical 8 місяців тому
Very good and informative video! Thank You!
@elewizard
@elewizard 8 місяців тому
Glad it was helpful!
@jungleb
@jungleb 8 місяців тому
your content is amazing, you are my new teacher. thanks
@elewizard
@elewizard 8 місяців тому
Happy to hear that! 🥳
@msg1956
@msg1956 7 місяців тому
Excellent explanation..! I appreciate your hard work..!
@elewizard
@elewizard 7 місяців тому
It's my pleasure
@user-xn5co6oe1s
@user-xn5co6oe1s 7 місяців тому
Mr. He said, You got him.
@Bianchi77
@Bianchi77 8 місяців тому
Well done, nice video,thanks for sharing it with us :)
@elewizard
@elewizard 8 місяців тому
Thanks for watching!
@mikex691
@mikex691 7 місяців тому
This is EXCELLENT!!!
@elewizard
@elewizard 7 місяців тому
Thank you so much
@mdamanotullahfahadi7772
@mdamanotullahfahadi7772 7 місяців тому
Thank you so much for excellent presentation and informative videos. I have already subscribed.
@elewizard
@elewizard 7 місяців тому
Thanks and welcome ❤️
@ThomasJagielo-ek8nq
@ThomasJagielo-ek8nq 8 місяців тому
Glad your back!
@elewizard
@elewizard 8 місяців тому
Thank you dude❤️
@drtidrow
@drtidrow 7 місяців тому
Another application is to use the reverse-bias junction capacitance for adjusting the frequency of a tuned circuit - varying the reverse voltage varies the capacitance, which can then change the frequency of an oscillator. Varactor diodes are specialized for this purpose, but the effect can be demonstrated with pretty much any reverse-biased diode.
@SteveRaynerMakes
@SteveRaynerMakes 4 місяці тому
A lot of information here` explained very well.
@elewizard
@elewizard 4 місяці тому
Glad you liked it❤️😃
@user-yv7so8oq7j
@user-yv7so8oq7j 8 місяців тому
Good presentation sir. Keep it up.
@elewizard
@elewizard 8 місяців тому
Thank you, I will
@aijaz4441
@aijaz4441 3 місяці тому
Your explanation is amazing. Please make more videos on understanding electronic circuits and with emphasis on what each component does in the circuit.
@elewizard
@elewizard 3 місяці тому
Thank you dude. Will do 👍
@mohammedalathari9635
@mohammedalathari9635 7 місяців тому
Hello, great video, thank you. Good to see you back, I was sad to see you disappeared from youtube! Where are the older vids?
@elewizard
@elewizard 7 місяців тому
I had trouble with my MCN. This is my new channel and I am going to add old/new videos here
@MrJam1858
@MrJam1858 8 місяців тому
Great video friend!! Did you used to have a different channel? I remember watching a video from you about capacitor applications that was extremely informative amd helpful. But the video is no longer available says UKposts.
@elewizard
@elewizard 8 місяців тому
No, I don't. My last channel is not available because of the issue I had with my MCN. 😑 I am going to upload old and new videos here 👍
@bikashdas4078
@bikashdas4078 8 місяців тому
Knowledgeable video.
@elewizard
@elewizard 8 місяців тому
Glad you think so!
@utube321piotr
@utube321piotr 2 місяці тому
Outstanding channel, thanks for taking time to share information.
@elewizard
@elewizard 2 місяці тому
I appreciate your kind words. Thank you for taking time to comment ❤️❤️
@abdulsami7042
@abdulsami7042 6 місяців тому
Excellent. Many thanks.
@elewizard
@elewizard 6 місяців тому
My pleasure!
@kjuirteerdserty9618
@kjuirteerdserty9618 8 місяців тому
excellent explanation
@elewizard
@elewizard 8 місяців тому
Glad you liked it!
@sastrydasigi7010
@sastrydasigi7010 8 місяців тому
Great video. Thank you very much!
@elewizard
@elewizard 8 місяців тому
You are welcome!
@edwardchance2543
@edwardchance2543 7 місяців тому
Thanks for sharing subscribed
@elewizard
@elewizard 7 місяців тому
Thanks & welcome
@RobytheFlorentine
@RobytheFlorentine 8 місяців тому
Very very good video. Thanks
@elewizard
@elewizard 8 місяців тому
Glad you liked it!
@user-gi4qx3st6u
@user-gi4qx3st6u 4 місяці тому
Thank you very much for all the knowledges..appreciate it!
@elewizard
@elewizard 4 місяці тому
My pleasure!
@nimaebrahimi6475
@nimaebrahimi6475 7 місяців тому
6:02 good explained
@elewizard
@elewizard 7 місяців тому
Thank you😊
@KarldorisLambley
@KarldorisLambley 6 місяців тому
another fantastic video, I've been making notes.cheers!
@elewizard
@elewizard 6 місяців тому
Glad you like them!🥳🥳🥳🥳
@KarldorisLambley
@KarldorisLambley 6 місяців тому
@@elewizard tbh for this sort of stuff you are better than Mehdi, the way you list things, to make note taking easy. whereas, and please don't be offended, medhi is more entertaining to watch. (don't think i expect you to start zapping yourself!)
@elewizard
@elewizard 6 місяців тому
@@KarldorisLambley thank you for your feedback. Yes I know, mehdi is an artist more than an engineer 👍 It is quite normal to get more views
@KarldorisLambley
@KarldorisLambley 6 місяців тому
@@elewizard pah. more views? means nothing, popularity is over-rated. this sounds bad but i think most people have dreadful taste. he may get more views but you have taught me far more. why do you not have patreon or that buy a coffee thing? i'd gladly give you a few quid. and wow. yesterday you had 6.8k subscribers, today is 7k. congrats!! that is nearly 3% in one day!
@elewizard
@elewizard 6 місяців тому
Yeah, my progress is fine. We are going to create big community 🥳
@johnfiott
@johnfiott 8 місяців тому
I really enjoyed this video and have now subscribed. One question though - Re the induction motors, why do you usually see a capacitor across the terminals and not a diode? Or do they serve different purposes?
@allensmithphotography
@allensmithphotography 8 місяців тому
They serve the same purpose. To protect from high voltage spikes, but they do it slightly differently and at different price points. If the manufacturer can get the capacitors cheaper than the correct size diode, they'll use the capacitor. Because the diode would have to withstand a potentially high voltage and current spike that would make them more expensive.
@elewizard
@elewizard 8 місяців тому
Good question! The answer is not simple to describe. In next week's I will upload a video about capacitors and their applications. One of experiments I will cover this subject 👍
@colinbatey7876
@colinbatey7876 7 місяців тому
An induction motor needs a rotating magnetic field to operate. On a single phase motor a extra separate winding connected in series with a capacitor gives a phase shift or timing difference between two windings causing the resultant field to rotate and this causes current to be induced in the rotor and the rotor will turn. Nothing to do with spikes.
@allensmithphotography
@allensmithphotography 7 місяців тому
@@colinbatey7876 that's an ac inductance motor. The original referred to a DC motor
@colinbatey7876
@colinbatey7876 7 місяців тому
It did, but the question said induction motor which as you say is an AC motor.
@onyxfn3183
@onyxfn3183 8 місяців тому
عالی بود استاد
@elewizard
@elewizard 8 місяців тому
Thank you dude
@kallehanhela782
@kallehanhela782 Місяць тому
Respect for you. Your channel helps me to learn about electronics. You have a new subscriber.
@elewizard
@elewizard Місяць тому
You are most welcome my friend, I am proud of having audience like you 😃
@walt5507
@walt5507 8 місяців тому
At 7.42, you mentioned a video on charging a backup battery setup, and I am most keen to see that, but I can't find it on UKposts . Can you direct me to that one please? Great videos btw.
@elewizard
@elewizard 8 місяців тому
I said in one of my next videos, the video is not published yet. The video is going to publish in 10 days
@amobiikegwu8241
@amobiikegwu8241 7 місяців тому
Wonderful tutorial! As you rightly mentioned that zener diode can be used to protect the circuit from over over-voltage, can it protect an ac voltage? Can it take care of under-voltage?
@elewizard
@elewizard 7 місяців тому
No, It can't protect AC or under voltage 👍
@marcelogouveia9614
@marcelogouveia9614 7 місяців тому
You can use a "Voltage dependent resistor" AKA: Varistor
@mctoddhikvision6189
@mctoddhikvision6189 7 місяців тому
nice video,, can you make a video about replacing diode on solar panel?
@elewizard
@elewizard 7 місяців тому
Thank you so much for your suggestion. I will consider your suggestion
@danylipsker
@danylipsker 8 місяців тому
Thank you again for such a broad explanation and clarity❤
@elewizard
@elewizard 8 місяців тому
Glad it was helpful!
@androiduploadsutube
@androiduploadsutube 7 місяців тому
Thanks!
@elewizard
@elewizard 7 місяців тому
Thank you so much ❤️❤️❤️❤️
@stalwartekwere2157
@stalwartekwere2157 4 місяці тому
Best video man ❤❤❤❤
@elewizard
@elewizard 4 місяці тому
Thank you so much 😀
@pheymee88
@pheymee88 6 місяців тому
4 things on my mind to add: 1) LEDs can drop up to 2-4V, depending on its colours! The bigger the band gap, the "colder" the colour and bigger voltage drop! 2) I never heard of flywheeling diode, do you mean flyback or freewheeling? :D 3) I'm missing the explanation of the flyback diode - it's dropping that peak voltage because it allows the coil to "decharge" through itself (to absorb the inductive current kickback), making a nice peak current "circle" flow between the diode and the coil, instead of your circuitry. 4) I'm surprised you didn't mention opto-isolators alongside with LED transmission devices, those are my favorite type of power protection devices!
@elewizard
@elewizard 6 місяців тому
1-i mentioned the voltage drop capability 2-yes flywheel is used 3-correct 4-i can't mention everything, I have to ignore many other items to keep the video length acceptable
@marcelogouveia9614
@marcelogouveia9614 7 місяців тому
Man, thank you for this great vídeo with all the basics 👌 We (except the haters) all greatly appreciate your time and effort!
@elewizard
@elewizard 7 місяців тому
I appreciate that! Thank you for supporting me ❤️❤️❤️
@xila8861
@xila8861 2 місяці тому
I am learning , that's good.
@elewizard
@elewizard 2 місяці тому
Very nice, keep watching 👍
@sayedhassanphysics8491
@sayedhassanphysics8491 8 місяців тому
🌺🌹 Excellent 🌺🌹🌺
@elewizard
@elewizard 8 місяців тому
Thank you! Cheers!🥳
@Belginator
@Belginator 8 місяців тому
I did not know S and Z rule and have worked in electronics for many years, thanks
@elewizard
@elewizard 8 місяців тому
Glad it was helpful
@GiC7
@GiC7 7 місяців тому
Thanks
@elewizard
@elewizard 7 місяців тому
Your welcome
@umesh.kumar.naik278
@umesh.kumar.naik278 8 місяців тому
Good evening sir... Very nice video.... What happened with your other channel... I really missed u and your video... Lot of ❤ from odisha, India
@elewizard
@elewizard 8 місяців тому
High dude, I missed you too. I have faced an issue with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos.
@johnedwards315
@johnedwards315 8 місяців тому
Hi and thx for your effort. I wish someone would make a video on how to find/calculate value etc for real life situations for us ignorant enthusiasts. Let me explain. I am using lots of buck converters - boosters and lithium solar chargers. I use bear modules for cost and flexubility. In their instructions are mentioning not to reverse polarity and put a diode etc. How do I find which diode? how do I calculate values? I have clamp meter and accurate multimeter. No more fancy bench instruments. I do not want to become an electrinics engineer just solve everyday little problems in laymans terms. Any help or direction much welcomed. TNX
@user-gc6ou5fh2n
@user-gc6ou5fh2n 4 місяці тому
I love it ❤
@elewizard
@elewizard 4 місяці тому
Thank you for watching 😊
@greatawakeningforall
@greatawakeningforall 4 місяці тому
Thank you
@elewizard
@elewizard 4 місяці тому
You're welcome🍻
@specialservicesequipment393
@specialservicesequipment393 7 місяців тому
So I can use a ZENER diode to block current in a circuit when the voltage is below the zener diode voltage?
@elewizard
@elewizard 7 місяців тому
Yes, you can
@EI.01
@EI.01 8 місяців тому
Sir i have being following your channel, but i can't find Your old channel anymore what's wrong with it, i do love your videos
@elewizard
@elewizard 8 місяців тому
I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos here.
@sienervanrensburg6644
@sienervanrensburg6644 3 місяці тому
How do you read the code printed on zener diode should you not be able to get the data sheet for the diode? Would appreciate it for the assistance as I feel that all my research to my question is leading to no answer and thus I hope that you will be able to assist me. You're explaining on components and examples are the best that i have seen and even advise my colleagues to watch and subscribe to your channel.
@elewizard
@elewizard 2 місяці тому
You need a microscope to read tiny printed text on the diode, then search for 'SMD zener diode code table' on Google. You will reach many tables that map the smd code to device name 👍
@sadaasivomkm9994
@sadaasivomkm9994 8 місяців тому
Neetest work Shop
@faraday2803
@faraday2803 8 місяців тому
nice channel!
@elewizard
@elewizard 8 місяців тому
Glad you enjoy it!
@anontoakanda5847
@anontoakanda5847 8 місяців тому
Sir, I am from Bangladesh 🇧🇩. I recently search your channel but could not find. Today Got you❤️
@elewizard
@elewizard 8 місяців тому
So nice of you. I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos here.
@gidomareyt
@gidomareyt 8 місяців тому
I like your video, i like the circuit to charge battery
@elewizard
@elewizard 8 місяців тому
Thanks for liking.
@kmalnasef1512
@kmalnasef1512 8 місяців тому
what happened to the old channel? I saw all your videos long time ago but here it looks reuploaded! is this a new channel? any way I subscribed and waiting for you to Explain more electronics and more concepts good job my friend
@elewizard
@elewizard 8 місяців тому
Hi, yes this is a new channel. I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos. Glad you are here
@spudhead169
@spudhead169 8 місяців тому
There is another way to reverse polarity protect with a diode, that's by placing a regular diode in reverse bias across the power input so long as your power source is fused. Connecting the power backwards would pop the fuse before the diode burned.
@elewizard
@elewizard 8 місяців тому
Yes, exactly. And then the user have to replace the fuse or sometimes the user think that the device is broken.
@spudhead169
@spudhead169 8 місяців тому
@@elewizardIt's not a particularly good solution. It's just something that is sometimes done.
@elewizard
@elewizard 8 місяців тому
@@spudhead169 no, you didn't. 👍
@spudhead169
@spudhead169 8 місяців тому
It used to be done quite a bit with car audio equipment, but not so much these days due to some folk wiring directly to the battery in reverse, so no fuse inline. The best reverse protection is really the p-channel mosfet approach. Very little loss.
@elewizard
@elewizard 8 місяців тому
@@spudhead169 There are so many approaches, each of which has its own advantages and disadvantages.
@feedmytv
@feedmytv 8 місяців тому
radja + lep, just saying, can you do the driver?
@amobiikegwu8241
@amobiikegwu8241 7 місяців тому
Sir, I got your feedback on the question that I raised. I commend you for it. You used 1N4148 as a flyback diode in an indictive circuit instead of a power diode such as 1N4007, Why? I think that 1N4148 is a signal diode and used in a circuit that requires high switching speeds. Please, refer me to your videos on Operational Amplifier and how one can use it to compare AC voltages. Thanks.
@elewizard
@elewizard 7 місяців тому
There is no need to use power diode there because voltage and current is not much high, actually power dissipation is low then we can use 1n4148 or other diodes there. I will make a video about OPAMPs as soon as possible 👍
@amobiikegwu8241
@amobiikegwu8241 7 місяців тому
@@elewizard Thanks so much for your feedback. I am looking forward to seeing your video on OPamp.
@RVDestinations
@RVDestinations 7 місяців тому
I would prefer you show me how to build 8 useful devices with diodes.
@elewizard
@elewizard 7 місяців тому
Maybe in next videos
@Book_worm_1999
@Book_worm_1999 6 місяців тому
Make similar video for coil inductor
@elewizard
@elewizard 6 місяців тому
Will try
@Enigma758
@Enigma758 2 місяці тому
I have a basic question I was hoping you could answer. Normally, a resistor is used along with the diode to limit current. However, when used as a rectifying diode bridge, I normally do not see any resistors being used to limit the current. So my question is, in that case, what limits the current? Is it only because they are high current diodes and therefore don't require any external current limiting? Thanks!
@elewizard
@elewizard 2 місяці тому
It is because of the power supply. The output current of power supply is limited, so you have to use a diode with a current rating higher than the power source. Then the power supply can't deliver current needed to destroy the diode. I hope you got the answer ❤️
@Enigma758
@Enigma758 2 місяці тому
@@elewizard Yes, thanks. So in general, if the diode rating exceeds the current delivered by the circuit, then you don't need a current limiting resistor.
@03_abdullahdzulfikar51
@03_abdullahdzulfikar51 4 місяці тому
Greattt😅
@03_abdullahdzulfikar51
@03_abdullahdzulfikar51 4 місяці тому
Please explain inductor
@elewizard
@elewizard 4 місяці тому
Will do👍
@umerstar
@umerstar 8 місяців тому
Is this your new channel. What happened to your older videos
@elewizard
@elewizard 8 місяців тому
Yes, this is new channel. I had trouble with my MCN and because of that, I have created a new channel. I am going to add old videos along with new videos here.
@dunckeroo1987
@dunckeroo1987 8 місяців тому
Solar cell is a diode. If you put power into solar cell it will emit deep red light visible in camera. Diode can be used to protect relay contracts from REMF from a heavy DC inductive load when contracts open. The diode absorbs the energy that produces momentary arc in relay contracts.
@elewizard
@elewizard 8 місяців тому
Yes, exactly. Thank you for your comment
@d614gakadoug9
@d614gakadoug9 8 місяців тому
A diode is not always the best choice for contact protection with an inductive load - or for protection of the driver of a relay coil. A simple diode acts more-or-less as a short circuit across the inductor when the contacts open or the driver turns off. That means that it can take substantial time to discharge the energy stored in the inductor. Often that is not a problem, but sometimes it is. For example, a diode across the coil of a high-power relay not only delays the opening of the contacts but it slows the opening once that actually begins. That can lead to increased arcing of the contacts, shortening the life of the relay.
@jozsiolah1435
@jozsiolah1435 8 місяців тому
I believe, that these components have a complete computer inside, especially the SMD types. To control the computer, first it must be installed into a device. When you experiment with charging, your diode become removed from its default blacklist, and starts its normal operation, for example removing the memory effect from batteries. Same with SMD resistors, but when you destroy one, there is no computer circuit inside. So the component is on blacklist due to radiation, and the component’s memory effect status causes its default regional blacklist.
@elewizard
@elewizard 8 місяців тому
I believe that you can become a good writer in the science fiction genre 😉
@colinbatey7876
@colinbatey7876 7 місяців тому
Another important ingredient of electronic components is smoke. If you exceed voltage and temperature you will let the smoke out and it's finished.
@arpcatchall822
@arpcatchall822 8 місяців тому
Thanks for the video. Can you please in the future remove the "bleep" sound? Hurts my head.
@elewizard
@elewizard 8 місяців тому
OK, In new videos I will remove that sound. Bad news is I have few videos ready to upload and there are beep sounds on them
@arpcatchall822
@arpcatchall822 8 місяців тому
@@elewizard No worries since they are already made. Thanks for your consideration for the future.
Місяць тому
Anyone know what would be oscilloscope banditech/samples if I would like to see and keep testing (able to see what what is happening) these at home with these diodes (and possibly some NAND /transistors) ? On this video looks like it is 100Mhz Oscilloscope, that would be pricy for just learning and small tests. Thank you
@elewizard
@elewizard Місяць тому
Yes the oscilloscope in the video is 100 Mhz but for these experiments a 20Mhz would be enough
@elewizard
@elewizard Місяць тому
Yes the oscilloscope in the video is 100 Mhz but for these experiments a 20Mhz would be enough
Місяць тому
Oh thank you 😊, 20mhz is affordable
@user-xn5co6oe1s
@user-xn5co6oe1s 7 місяців тому
Mr. Exist applications to switch his lasers, maybes calls Spectogram or Spectrum, something with Hz, I almost put him down long times ago. He want to kill himself, gives for us that he want to stop. Thank You.
@gkdresden
@gkdresden 8 місяців тому
You can also use silicon diodes als switches for low voltage ac signals. As long as the ac signal is lower than the forward voltage the signal is blocked. When you now add a dc voltage to the ac signal, which is higher than the forward voltage, the ac voltage will appear behind the diode on top of the dc voltage. Using 2 capacitors before and after the diode you can switch the ac signal on and off. You can also use a full wave recitifier to switch between a current sink to ground and a current source from the positive supply voltage a point in your circuit whos voltage is between positive supply voltage and ground. you just need to connect one of the ac inputs to your circuit point and the other between ground or positive supply voltage. The current source and sink are connected to the dc outputs of the rectifier. In this way you can make a 555 astable multivibrator whos output switches the current source and sink to the capacitor point which gives a precise linear voltage ramp, which can control other circuits (for instance a vc oscillator or a vc PWM generator).
@elewizard
@elewizard 8 місяців тому
Thank you for your comment. I will cover these items in updated video of this.
@d614gakadoug9
@d614gakadoug9 8 місяців тому
Diodes as signal switches suffer from nonlinearities, so they are not always useful. They are good for switching RF where the signal amplitude is quite small and a bit of distortion is tolerable. It is important that the DC bias be applied from a source that is reasonably high impedance relative to the signal path impedance. In RF circuits this is usually accomplished by means of an inductor in the DC path. A properly designed current source or sink also works (an ideal current source or sink has infinite output impedance; practical ones don't but can be very good).
@gkdresden
@gkdresden 2 місяці тому
@@d614gakadoug9 yes, you can use a full wave rectifier (4 diode bridge) to switch a current source or a current sink to a load by control voltages. And the currents can be different or you can modulate them by use of voltage control. I have used such a circuit for charging and discharging of the capacitor in a 555 astable multivibrator by exit voltage control in order to make a very precise voltage to pwm converter.
@shanewalker9564
@shanewalker9564 7 місяців тому
we used to get potable 12" tvs from the tip and change the diode then sell them i was only 10 made a fortune in the 70s from caravaners that had put the leads wrong way around
@kennmossman8701
@kennmossman8701 Місяць тому
the load normally only takes the current needed
@absmustang
@absmustang 7 місяців тому
The only component I think of as “simple” is the wire. And even that requires a bit of thinking when the gauge becomes crucial in the application. 😢
@elewizard
@elewizard 7 місяців тому
Good point 👍
@m.fadhiilhaekal7693
@m.fadhiilhaekal7693 8 місяців тому
I create a node on common positive side, using diode to merge them using a full bridge diode, in my country Indonesia its actually cheaper to buy high amps diode by using full bridge rectifier 😂
@elewizard
@elewizard 8 місяців тому
Good solution 😂
@shambleslongplay3566
@shambleslongplay3566 8 місяців тому
a diode is the best invention ever, Even betterthan the light bulb. (even though they were origionaly a light bulb)
@elewizard
@elewizard 8 місяців тому
Maybe, I think transistor is more important than the diode
@shambleslongplay3566
@shambleslongplay3566 8 місяців тому
@@elewizard Please make a transistor without a diode.
@flinkiklug6666
@flinkiklug6666 8 місяців тому
Many cameras have a IR Filter so the Light of a Remote can't pass the lens
@elewizard
@elewizard 8 місяців тому
Cellphone cameras can sense IR
@flinkiklug6666
@flinkiklug6666 8 місяців тому
@@elewizard for example mine not. It is an iPhone 7 Max and if i hold a Remote in front of it, no sign.
@user-qi7fh5je6b
@user-qi7fh5je6b 4 місяці тому
I'm new to this. I'm an electriian. But I have a question
@elewizard
@elewizard 4 місяці тому
You are most welcome. Ask your question in a new comment
@brucehatch6415
@brucehatch6415 8 місяців тому
If you series diodes, you can create a time delay
@elewizard
@elewizard 8 місяців тому
Yes, you need milions of diodes to make 1sec delay. And you need kilos of voltage to pass through the diodes 😉
@d614gakadoug9
@d614gakadoug9 8 місяців тому
EDITED You need to explain that. I spent decades designing electronics and never once used the inherent characteristics of a diode to produce a delay. Are you referring to the so-called forward recovery time of a diode? It is real, but not something predictable enough from diode to diode to have any practical use for delay purposes. Very few diode datasheets specify forward recovery time. The reverse recovery time of a diode means there is a delay in turn off of a diode, but again that isn't something I'd ever consider for deliberate delay. If you had a ramp or something similar then you could use a diode or a few diodes in series to prevent significant conduction during part of the ramp to some down-stream circuit, producing a delay. You'd have to contend with the production spread in the forward voltage of the diodes and its fairly large temperature dependency. It could be useful in some circumstances (e.g. in a zero crossing detector).
@gordonemery6949
@gordonemery6949 6 місяців тому
Put the yappy dog in another room lol 👍
@superawesomefuntime2162
@superawesomefuntime2162 6 місяців тому
hehe hmm, I think the zener diode might have saved my arduino from literally smoking the other night =D
@elewizard
@elewizard 6 місяців тому
You were lucky 😉
@ambition112
@ambition112 8 місяців тому
0:00: 🔌 Diodes are versatile components that can rectify current and have various applications in circuits. 4:30: 🔌 The video discusses various applications of diodes, including rectification, reverse polarity protection, and connecting multiple power sources. 8:52: 🔌 Diodes can be used to reduce voltage in a circuit and as flyback diodes in relay circuits. 12:17: ✨ The use of diodes and zener diodes in circuits to eliminate spikes, regulate voltage, and protect against overvoltage. 16:45: 📺 The video discusses different types of diodes and their applications, including the use of LEDs for remote communication. Recap by Tammy AI
@inbaraj4250
@inbaraj4250 13 днів тому
3:32 that's a bridge rectifier
@The_Temple
@The_Temple 5 місяців тому
a diode can also be used to make an AM radio
@elewizard
@elewizard 5 місяців тому
Very general
@The_Temple
@The_Temple 5 місяців тому
@@elewizard yes. should have clarified -- can be basis for a rather simple crystal rectifier radio
@dir2002usable
@dir2002usable 2 місяці тому
Very strange things happens at time 3:38-3:39 . Suddenly the circuit transformed to something quite different that it was a moment ago, but there was a perfect oscillogram. I have an idea what difficulties author experienced . Likely it was the ground which is common for both channels. It is very sad that the author didn't clearly show how he resolved that.
@elewizard
@elewizard 2 місяці тому
Yes, you are right. But I think it was not necessary to explain what exactly happened, because my goal is to teach the concepts not the experiments. However, your comment shows that you are experienced 👍
@ExploringNew1
@ExploringNew1 6 місяців тому
That's a big chunky diode
@elewizard
@elewizard 6 місяців тому
Yeah
@Anthony-nm6qh
@Anthony-nm6qh 7 місяців тому
I turnoff after 10sec because of all the hand movements😂
@elewizard
@elewizard 7 місяців тому
Sorry about that.
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