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!
@elewizard11 ай бұрын
It is an honor for me that you spent your valuable time writing a comment for me thank you for supporting me ❤️
@SteveRaynerMakes8 ай бұрын
I felt the same.
@LambdaTechnology5 ай бұрын
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 👍
@elewizard5 ай бұрын
Thank you too, for watching the video and writing such a encouraging comment 😃, so nice of you
@sananjabrayilov5349 Жыл бұрын
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 Жыл бұрын
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
@SteveRaynerMakes8 ай бұрын
A lot of information here` explained very well.
@elewizard8 ай бұрын
Glad you liked it❤️😃
@damienmilk302511 ай бұрын
Yours is one of the best electronics tutorial channels on KZfaq. Thanks, subbed.
@elewizard11 ай бұрын
Thanks for the sub!🥳
@mikepanchaud1 Жыл бұрын
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 Жыл бұрын
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
@tgetvtips11 ай бұрын
Looking forward to your next video 🙂
@Denyzyne Жыл бұрын
Very helpful! I sure hope my diodes won't mind being in my circuits now! ✨😃
@elewizard Жыл бұрын
😂
@tanner19854 ай бұрын
I appreciated the style of teaching, subscribed! Greetings from Italy
@elewizard4 ай бұрын
Glad you liked the video, you arr most welcome my Italian friend 😊
@WynneGarnie5 ай бұрын
This fellow is a legend, detailed explanation, and friendly teaching. Well done
@elewizard4 ай бұрын
Thank you dude for your warm and encouraging comment 😃
@Q80100Ай бұрын
You are awesome in the end of video 😂😂 Also your videos really useful , liked and subscribed
@CableWrestler Жыл бұрын
Subscriber number 26 here! Just found your channel. Great content - thank you for taking the time to make this video.
@elewizard Жыл бұрын
Welcome dude. Thanks for sub 🥳🥳🥳🥳
@user-xn5co6oe1s11 ай бұрын
Mr. He said, You got him.
@BillAnt Жыл бұрын
A full wave rectumfryer never gets old as an electronics joke. lol
@elewizard Жыл бұрын
😂
@mustafaiqbal892 ай бұрын
Thank you so much for making a thorough overview on diodes! :)
@elewizard2 ай бұрын
My pleasure!❤️
@dimitrioskalfakis Жыл бұрын
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 Жыл бұрын
Thank you for noticing the point. Sharp lines are presenting zener diodes and curvy symbol presents schottky. 👍
@dimitrioskalfakis Жыл бұрын
@@elewizard well, an S and a Z are still different (inverted) whether you use curvy or sharp lines.
@startrek416 Жыл бұрын
very clear explanation, it is good to collect knowledge in one lesson, well done
@elewizard Жыл бұрын
Glad you liked it!
@brucehatch6415 Жыл бұрын
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
@kallehanhela7825 ай бұрын
Respect for you. Your channel helps me to learn about electronics. You have a new subscriber.
@elewizard5 ай бұрын
You are most welcome my friend, I am proud of having audience like you 😃
@smilingdog2219 Жыл бұрын
I have so many questions about the magic of circuits and you answer a few. Thank you.
@elewizard Жыл бұрын
I will answer 😉more in next videos
@yangranay810214 күн бұрын
The usage of Diodes is quite clear in someways, may I get the link of the video that you've just mentioned at 7:37 about the battery backup charger?
@jungleb Жыл бұрын
your content is amazing, you are my new teacher. thanks
@elewizard Жыл бұрын
Happy to hear that! 🥳
@user-ob9wd7ik9qАй бұрын
I was looking for the all uses of components because I am suspicious of one or two uses for each component, and I am glad to see this channel and from the beginning I subscribe the channel 🙏🏻
@elewizardАй бұрын
Thank you for subscribing the channel. Keep watching 👍
@drtidrow11 ай бұрын
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.
@lsambrexi61734 ай бұрын
WAW!! It was the most beautiful coincidence when I met your channel.❤
@elewizard3 ай бұрын
You are most welcome , cheers 🥂
@brianwood522011 ай бұрын
You have a great channel, I have learnt a lot watching you. Thanks for sharing.
@elewizard11 ай бұрын
Thank you for watching
@spyghetti11 ай бұрын
This channel is great, I'm consuming each video at an alarming rate.. please keep it up, your examples and explanation is superb.
@elewizard11 ай бұрын
Wow, thanks!
@pheymee8810 ай бұрын
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!
@elewizard10 ай бұрын
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
@aijaz44417 ай бұрын
Your explanation is amazing. Please make more videos on understanding electronic circuits and with emphasis on what each component does in the circuit.
@elewizard7 ай бұрын
Thank you dude. Will do 👍
@mohammedalathari963511 ай бұрын
Hello, great video, thank you. Good to see you back, I was sad to see you disappeared from youtube! Where are the older vids?
@elewizard11 ай бұрын
I had trouble with my MCN. This is my new channel and I am going to add old/new videos here
@utube321piotr6 ай бұрын
Outstanding channel, thanks for taking time to share information.
@elewizard6 ай бұрын
I appreciate your kind words. Thank you for taking time to comment ❤️❤️
@billporter149 Жыл бұрын
Excellent presentation of diode capabilities and common usage.
@elewizard Жыл бұрын
Many thanks!
@mdamanotullahfahadi777211 ай бұрын
Thank you so much for excellent presentation and informative videos. I have already subscribed.
@elewizard11 ай бұрын
Thanks and welcome ❤️
@msg195611 ай бұрын
Excellent explanation..! I appreciate your hard work..!
@elewizard11 ай бұрын
It's my pleasure
@marcelogouveia961411 ай бұрын
Man, thank you for this great vídeo with all the basics 👌 We (except the haters) all greatly appreciate your time and effort!
@elewizard11 ай бұрын
I appreciate that! Thank you for supporting me ❤️❤️❤️
@johnedwards315 Жыл бұрын
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
@inbaraj42504 ай бұрын
3:32 that's a bridge rectifier
@ThomasJagielo-ek8nq Жыл бұрын
Glad your back!
@elewizard Жыл бұрын
Thank you dude❤️
@jerson81463 ай бұрын
Awesome video. New subscriber here.. Please also make video discussing applications of inductors.
@elewizard3 ай бұрын
Welcome aboard 👍 I will make it as soon as possible
@ServiceOrchestramegastore Жыл бұрын
you are a great teacher. thank you for shearing this knowledge.
@elewizard Жыл бұрын
Wow, thank you so much. Thank you for being here 😊
@ServiceOrchestramegastore Жыл бұрын
I like the positive mood you brings us with you...🙂 @@elewizard
@EI.01 Жыл бұрын
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 Жыл бұрын
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.
@user-yv7so8oq7j Жыл бұрын
Good presentation sir. Keep it up.
@elewizard Жыл бұрын
Thank you, I will
@simbakali Жыл бұрын
I have subscribed immediately! Let’s wait for the next insightful videos. Bless you.
@elewizard Жыл бұрын
Awesome! Thank you! New videos are coming soon
@simbakali Жыл бұрын
@@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.
@user-gi4qx3st6u8 ай бұрын
Thank you very much for all the knowledges..appreciate it!
@elewizard8 ай бұрын
My pleasure!
@xila88616 ай бұрын
I am learning , that's good.
@elewizard6 ай бұрын
Very nice, keep watching 👍
@mctoddhikvision618911 ай бұрын
nice video,, can you make a video about replacing diode on solar panel?
@elewizard11 ай бұрын
Thank you so much for your suggestion. I will consider your suggestion
@tgetvtips11 ай бұрын
Your efforts sharing this valuable info are greatly appreciated. ❤
@elewizard11 ай бұрын
My pleasure 😊
@MarineElectrical Жыл бұрын
Very good and informative video! Thank You!
@elewizard Жыл бұрын
Glad it was helpful!
@surajmandal_5673 ай бұрын
Hi i wanted to know that how circuits are designed. How do engineers know where to put a capacitor, resistor or inductor. I think its an advanced topic but a simple explanation will do enough.
@elewizard3 ай бұрын
It is not easy to answer your question. But if i try ro answer your question in a very simple way, they learned from books which are written based on experience and knowledge. In my opinion, all of these sciences and knowledge are coming from experience.
@anontoakanda5847 Жыл бұрын
Sir, I am from Bangladesh 🇧🇩. I recently search your channel but could not find. Today Got you❤️
@elewizard Жыл бұрын
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.
@stalwartekwere21578 ай бұрын
Best video man ❤❤❤❤
@elewizard8 ай бұрын
Thank you so much 😀
@Enigma7586 ай бұрын
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!
@elewizard6 ай бұрын
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 ❤️
@Enigma7586 ай бұрын
@@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.
@mikex69111 ай бұрын
This is EXCELLENT!!!
@elewizard11 ай бұрын
Thank you so much
@sastrydasigi7010 Жыл бұрын
Great video. Thank you very much!
@elewizard Жыл бұрын
You are welcome!
@abdulsami704210 ай бұрын
Excellent. Many thanks.
@elewizard10 ай бұрын
My pleasure!
@Book_worm_199910 ай бұрын
Make similar video for coil inductor
@elewizard10 ай бұрын
Will try
@Belginator Жыл бұрын
I did not know S and Z rule and have worked in electronics for many years, thanks
@elewizard Жыл бұрын
Glad it was helpful
@danylipsker Жыл бұрын
Thank you again for such a broad explanation and clarity❤
@elewizard Жыл бұрын
Glad it was helpful!
@HighDesertOffgrid11 ай бұрын
I would prefer you show me how to build 8 useful devices with diodes.
@elewizard11 ай бұрын
Maybe in next videos
@KarldorisLambley10 ай бұрын
another fantastic video, I've been making notes.cheers!
@elewizard10 ай бұрын
Glad you like them!🥳🥳🥳🥳
@KarldorisLambley10 ай бұрын
@@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!)
@elewizard10 ай бұрын
@@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
@KarldorisLambley10 ай бұрын
@@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!
@elewizard10 ай бұрын
Yeah, my progress is fine. We are going to create big community 🥳
@Bianchi77 Жыл бұрын
Well done, nice video,thanks for sharing it with us :)
@elewizard Жыл бұрын
Thanks for watching!
@MrJam1858 Жыл бұрын
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 KZfaq.
@elewizard Жыл бұрын
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 👍
@gidomareyt Жыл бұрын
I like your video, i like the circuit to charge battery
@elewizard Жыл бұрын
Thanks for liking.
@RobytheFlorentine Жыл бұрын
Very very good video. Thanks
@elewizard Жыл бұрын
Glad you liked it!
@sadaasivomkm9994 Жыл бұрын
Neetest work Shop
@specialservicesequipment39311 ай бұрын
So I can use a ZENER diode to block current in a circuit when the voltage is below the zener diode voltage?
@elewizard11 ай бұрын
Yes, you can
@feedmytv Жыл бұрын
radja + lep, just saying, can you do the driver?
@edwardchance254311 ай бұрын
Thanks for sharing subscribed
@elewizard11 ай бұрын
Thanks & welcome
@johnfiott Жыл бұрын
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 Жыл бұрын
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 Жыл бұрын
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 👍
@colinbatey787611 ай бұрын
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.
@allensmithphotography11 ай бұрын
@@colinbatey7876 that's an ac inductance motor. The original referred to a DC motor
@colinbatey787611 ай бұрын
It did, but the question said induction motor which as you say is an AC motor.
@kjuirteerdserty9618 Жыл бұрын
excellent explanation
@elewizard Жыл бұрын
Glad you liked it!
@amobiikegwu824111 ай бұрын
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?
@elewizard11 ай бұрын
No, It can't protect AC or under voltage 👍
@marcelogouveia961411 ай бұрын
You can use a "Voltage dependent resistor" AKA: Varistor
@androiduploadsutube11 ай бұрын
Thanks!
@elewizard11 ай бұрын
Thank you so much ❤️❤️❤️❤️
@superawesomefuntime216210 ай бұрын
hehe hmm, I think the zener diode might have saved my arduino from literally smoking the other night =D
@elewizard10 ай бұрын
You were lucky 😉
@umesh.kumar.naik278 Жыл бұрын
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 Жыл бұрын
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.
@sienervanrensburg66447 ай бұрын
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.
@elewizard6 ай бұрын
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 👍
@user-gc6ou5fh2n8 ай бұрын
I love it ❤
@elewizard7 ай бұрын
Thank you for watching 😊
@nimaebrahimi647511 ай бұрын
6:02 good explained
@elewizard11 ай бұрын
Thank you😊
@bikashdas4078 Жыл бұрын
Knowledgeable video.
@elewizard Жыл бұрын
Glad you think so!
@user-xn5co6oe1s11 ай бұрын
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.
@TravisTellsTruths8 ай бұрын
Thank you
@elewizard8 ай бұрын
You're welcome🍻
@walt5507 Жыл бұрын
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 KZfaq . Can you direct me to that one please? Great videos btw.
@elewizard Жыл бұрын
I said in one of my next videos, the video is not published yet. The video is going to publish in 10 days
@gordonemery694910 ай бұрын
Put the yappy dog in another room lol 👍
@03_abdullahdzulfikar518 ай бұрын
Greattt😅
@03_abdullahdzulfikar518 ай бұрын
Please explain inductor
@elewizard8 ай бұрын
Will do👍
@spudhead169 Жыл бұрын
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 Жыл бұрын
Yes, exactly. And then the user have to replace the fuse or sometimes the user think that the device is broken.
@spudhead169 Жыл бұрын
@@elewizardIt's not a particularly good solution. It's just something that is sometimes done.
@elewizard Жыл бұрын
@@spudhead169 no, you didn't. 👍
@spudhead169 Жыл бұрын
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 Жыл бұрын
@@spudhead169 There are so many approaches, each of which has its own advantages and disadvantages.
@ambition112 Жыл бұрын
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
@rekall762 ай бұрын
in one of my freelance projects i solved inevitable (and expensive) solenoid death with a diode
@elewizardАй бұрын
Great job 👍
@GiC711 ай бұрын
Thanks
@elewizard11 ай бұрын
Your welcome
@user-qi7fh5je6b8 ай бұрын
I'm new to this. I'm an electriian. But I have a question
@elewizard8 ай бұрын
You are most welcome. Ask your question in a new comment
@absmustang10 ай бұрын
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. 😢
@elewizard10 ай бұрын
Good point 👍
@kmalnasef1512 Жыл бұрын
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 Жыл бұрын
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
@faraday2803 Жыл бұрын
nice channel!
@elewizard Жыл бұрын
Glad you enjoy it!
@arp_catchall Жыл бұрын
Thanks for the video. Can you please in the future remove the "bleep" sound? Hurts my head.
@elewizard Жыл бұрын
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
@arp_catchall Жыл бұрын
@@elewizard No worries since they are already made. Thanks for your consideration for the future.
@amobiikegwu824111 ай бұрын
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.
@elewizard11 ай бұрын
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 👍
@amobiikegwu824111 ай бұрын
@@elewizard Thanks so much for your feedback. I am looking forward to seeing your video on OPamp.
@sayedhassanphysics8491 Жыл бұрын
🌺🌹 Excellent 🌺🌹🌺
@elewizard Жыл бұрын
Thank you! Cheers!🥳
@onyxfn3183 Жыл бұрын
عالی بود استاد
@elewizard Жыл бұрын
Thank you dude
@dunckeroo1987 Жыл бұрын
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 Жыл бұрын
Yes, exactly. Thank you for your comment
@d614gakadoug9 Жыл бұрын
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.
@gkdresden Жыл бұрын
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 Жыл бұрын
Thank you for your comment. I will cover these items in updated video of this.
@d614gakadoug9 Жыл бұрын
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).
@gkdresden6 ай бұрын
@@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.
@shanewalker956411 ай бұрын
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
@kennmossman87015 ай бұрын
the load normally only takes the current needed
@dir2002usable6 ай бұрын
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.
@elewizard6 ай бұрын
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 👍
@The_Temple9 ай бұрын
a diode can also be used to make an AM radio
@elewizard9 ай бұрын
Very general
@The_Temple9 ай бұрын
@@elewizard yes. should have clarified -- can be basis for a rather simple crystal rectifier radio
@HOLLYWOODlosANGELES10 ай бұрын
*Votre chaine est formidable pour l'amateur que je suis, je m'abonne.*
@elewizard10 ай бұрын
Welcome aboard ❤️
5 ай бұрын
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
@elewizard4 ай бұрын
Yes the oscilloscope in the video is 100 Mhz but for these experiments a 20Mhz would be enough
@elewizard4 ай бұрын
Yes the oscilloscope in the video is 100 Mhz but for these experiments a 20Mhz would be enough