Oh man I would give anything to have your brains. Watching your videos is like new world for me. I have to start learning some basic electronics. Keep up the good work.
Good video, you keep improving the way you explain progressively, before I had to pause the video and let everything soak in, but now it is just much clearer to understand!
GreatScott! I completely disagree. Is not a matter of generator\consumer. A diode is a component and as all the impedances by convention V and I are opposite. You will measure a positive voltage drop if you put the minus of the multimeter on the cathode of the diode and the plus on the anode, when the positive current symbol indicates that the current is flowing from the anode to the cathode (of course electrons are in the opposite direction). Isn't it ? To convince me please provide literature reference. Same observation for Vout with arrow versus ground at minute 3:03. Best Regards. Pier Aisa
Say I'm charging a 12v car battery with a step down DC to DC Converter using a 19v supply and I don't want any feedback to kill my converter, which value Schottky Diode do I use? Thanks
Greetings all, just wanted to interrupt and ask a small favor. UA-cam has changed their grading scale again and it is more important now than ever before to take a split second to press the "like" button for all your favorite channels. It is just one small way we can say thank you to these content providers for sharing their vast knowledge with us for free! I have seen many several of my favorite channels just stop uploading content or insert ads every 30 secs and all we have to do to prevent that, is simply say thanks by pressing "like." Please and thank you.
Combat engineer .... very well said my friend. I think it is the best way of saying " I like what you present and please keep them coming" to our favorite youtube channels .
George Kot I agree. completely. it takes lots of time to make great videos. and ppl still need to feed there self and their families. they can't keep making videos as often. and not make a living. UA-cam should get off their high horse. and stop being such money grubbers ! and spread some of the wealth. its the ppl making videos that makes the money for them. without the videos . what would they have?
So, I have a 33.6v #eSk8 li-ion battery for my electric longboard. I have a 120A latching relay to turn it on and off but the coil requiress 24v. I've used a voltage regulator to get the voltage down from 33.6v to 24v to work the coil, could I have used a zener doide instead? bearing in mind the battery would always be in an 'on' state to the 'centre off' switch I'm using to feed the coil.
Interesting symbols, in North America schottky diodes typically have little J's on the cathode end and zener diodes have angled wings. Are the symbols you used from a European standard?
In Europe, and most other states, the ISO standard is used. In North America you use your own symbols though some are the same. Resistors for instance you will note are different as the ISO standard is an empty rectangular box whereas in North America it's a zigzag
What bad behavior is instruction, why do not you propose that you no longer teach in schools with paper? For wastefulness direct your criticisms towards the industrialists. It's like diesel that is banned here in Europe, while the eight biggest container doors in the world pollute more than all the cars in the world but that we do not talk about and we do not impose depollution. It would be time to blame the real polluters who do it with impunity while we poor citizens are the cash cow of governments. Rest assured I do my best not to pollute and I am eco-friendly but there you exaggerate by targeting Great Scott.
didiersee do you perhaps mean container ‘ships’ not ‘doors’ . (otherwise it conjures up a wonderful picture of these large smoking doors plying the oceans of the world!)
love your videos the way you explain everything is really good like i'm 14 years old and i even i can understand al your videos easy keep making videos
GreatScott! wow you reacted 2 minutes after i placed my comment thats nice it doesnt happen on that many channels on youtube and of course no problem for the feedback
useful usage of Schottky diodes (although normal diodes can work there too): Using a shift register to poll multiple buttons, you need diodes to prevent the shift register from creating a short to ground when multiple buttons are pressed.
Talk about the tunnel diode. I'm old enough to remember it use to be in every oscilloscope located in the trigger circuit. The main problem with them was the short life span.
Nice, finally I understand why there are so many types of diodes... BRB spending even more money on components because I don't have any schottky diodes
I've never even seen that symbol used for zeners! It might be worthwhile to also show one of the more common symbols at some point. Also, it seems more likely that you're protecting from excess gate to source voltages than gate to drain. Many mosfets don't even list a gate to drain limit; which makes sense if you think about it.
6:15 if you put one leg over the diode and the other leg under it and twist the res a little bit, you will create a better contact because the pressure is slightly higher. :D
Hello, I really like Great Scott, I just noticed that the direction of the voltage Vf, (which shown at 1:35 minutes in the video), is reversed in the diode design. Sincere friendships.
Great Scott you are really great,it must be that Albert Einstein was from your family 😊 Super Video Bruder,sehr cool,ich schaue deine Videos mit voll Genuß 😀
Wonderful explanation. It's a pleasure to watch your videos. I do not know what you are doing in life but you should be a teacher. Would it be possible to explain in video the control of the liquid crystal segments? Supply voltage, consumption current as well as some integrated control circuits without going through arduino please. Congratulations, thank you from Belgium.
The zener is Clipping of those voltage above 15v in your example, because it will force a larger current to Flow since it becomes conductive. This then ends in a voltage drop across the resistor in Front of the zener.. is that how it works?
No. Zener diodes are simply diodes which have been designed to have a low reverse breakdown voltage. They are diodes which are placed deliberately into the circuit the wrong way around, compared to a non zener diode, so that they are normally reverse biased. However, the zener symbol and anode, cathode connections take account. The reverse breakdown voltage is negative. Diodes are normally intended for operation at a voltage greater than the reverse break down voltage. So if for example the reverse breakdown voltage is -100 volts, you should operate the zener at greater than -100 volts, which means between -100 and some positive value, typically 0.7 volts If you operate the diode at a lower voltage ( = at greater negative voltage), for example -120 volts then you will damage the diode. The diode becomes a short circuit. From 0 volts to -100 volts it has a high resistance and only a tiny current flows. When you go below the -100 volts the diode breaks down and the resistance greatly reduces. Now, a zener diode is just a diode where instead of a reverse breakdown voltage being large at -100 volts, the voltage is set to a much lower voltage, for example 3.1 Volts, 9 volts. If you connect up the zener in the right way so it is reverse biased, and you apply a voltage of greater than the stated zener voltage, the diode breaks down and the resistance, just as in the example above, reduces greatly. You do not want to do this in normal operation to non zener diodes as it permanently damages the diode. If you were using diodes in a full wave bridge rectifier running at 230 volts AC RMS, you would use diodes with a reverse breakdown voltage of typically 400 volts, which is a voltage that is higher than would normally be encountered in operation. The series resistor with the zener does two things: it limits the current passing through the zener and prevents it burning out. The second thing it does, it allows a voltage to be developed across the resistor so you can feed the circuit with a voltage higher than the zener voltage and the supply voltage is then divided across the resistor and the zener enabling the zener to have the right bias voltage across it to enable it to "breakdown" at the correct zener voltage. Zeners are great, because they are designed to "breakdown" at a carefully controlled voltage, which means you can use them as a fairly accurate voltage reference. And then you can compare other voltages to them. So for example, if you wanted a low battery indication circuit, you would use a zener and compare the battery voltage to the zener voltage and use a voltage comparator circuit or chip (or an op amp) and then use the output to drive an LED flashing circuit
hi i have a motor driver which am using to drive a coil CW and CCW to create electromagnet but when the coil collabse it destroy the motor driver can you suggest what to use to protect the motor driver , the power supply for the motor driver is 27 volts 22 amps thanks iin advance
If I wish to use a small panel cell to power a fan it makes noise until voltage/current from the panel match minimum requirement( in partial sun coverage), would a zener diode alone or with a cap in parallel as a buffer/battery be able to not turn on the fan till the requirements are met?
Hey. Good day ms greet Scott. I have just a little bit question. Does the smaller diode have small about of current output even if your power source have a greater output and voltage?
Hi In some logic ic outputs there is some unwanted negative short pulses after falling edge that can damage the microcontrollers inputs.. what circuit can block them can diode be used for this??
the ihk exams for electronics professions like mechatroniker for example expect you to to calculate with an Izmin which is 0.1 times the Iz you calculated for the zener diode in this video to protect it from the eventuality of over current
great video great Scott!!.. would you know how to build a voltage regulator for a automotive alternator??? that is a subject I'm stuck on. I have heard a 12 v alternator can be converted to 24v. by building a regulator . can you answer this. or do a video?
Joey Mac For passive components, the point of the arrow should point the highest potential (think highest potential as the point of the circuit closer to the Vcc). The current arrow is correct, the current flows from the Vcc to Gnd (considering that it is forward biased), however, the Vf is wrongly represented, because the anode is the highest potential, instead of the cathode :) www.khanacademy.org/science/electrical-engineering/ee-circuit
This helped me with my YT channel content of modifying a black and decker light. The COB lights I wanted to use kept pushing resistance back to the voltage regulator board and shutting it off. Using 1 schottky diode per COB strip on the + side made everything work perfectly. Now the negative terminals get warm (50C). But the GSM6232 variable voltage regulator doesnt even get 45C. Thinking of using 3 more on the negative side. Thanks! (DruCanDoIt) is my future channel. Building content. Have 3 videos edited and ready to go so far.
heres a good thought. I recently purchased a oscilloscope which came from a high school.everything was perfect.today i get it out hook it up and no display.I opened it up and on visual inspection i found a burnt out diode the leads on both ends had burnt off.I have no schemtaics its a mini diode zener i know that from the board but cant find one that looks like it.It has a green stripe which tells me orientation.the other colors are 2 blue stripes.It mini so no numbers on it only those 3 stripes.So what do you do in a case like this?" it goes into the crt circuit
Yet another great educational video mr. GreatScott:-) Perhaps you could make an in-depth video about the pros and cons of using schottky in battery powered Applications? For example: The lower the forward voltage drop, the higher the reverse current. Or why it's a good idea to place a diode across the pos. and neg. pins AFTER the fuse in your device. (If you reverse the polarity by mistake, the diode will act as a short circuit and blow the fuse. And it won't impose any voltage drop using this method) Perhaps you could also talk about: Gunn Diodes Shockley Diodes (not a typo) Transient Voltage Suppression Diodes Varactor Diodes (I'm not shure if i have mentioned them all) Thank you for your contribution to the tinkering community!
Bo Holbo Rasmussen - Those type of diodes are perhaps much less commonly used than these two. Don't forget about light emitting diodes and photo diodes....
Eddie Fox Hi there. This is a great explanation that has helped me understand Schottky and Zener diodes. I wonder if you can help me understand what is the best diode to protect an h-Bridge chip like L298N please. I have used 1n4001's but the h-bridge gets very hot (I'm running it on 12volts with "solenoids" low frequency = 20 - 1kHz but "enabling at" 20kHz roughly). If I run my little circuit with the cheep L298N Chinese board everything runs just warm (as you would expect) Runs at about 1 - 2 Amps. I notice they use "M7" diodes. Are these Schottky? My circuit uses standard pin through, not SM components so the M7 would not be practical. I have seen some say the equivalent to the M7 is the 1N4007 but then I see the M7 listed as Schottky? Some even talk about using a Zener diode for H-Bridge protection. Can you please advise me on what would be a real equivalent for the M7 please? 1N5817 "family"? The fast rise time (high frequency) response seems to make sense to me on an H-bridge driving inductors. Thank you so much. I'm not a degree electronics student just a hobbyist interested in circuits. Have subscribed!! If you've really got 5 minutes of you life to waste here is some thing similar to what I'm talking about before I got the Chinese L298N board (take no notice of the 1n4148's used!! :) ua-cam.com/video/h0nlACgOwns/v-deo.html Regards Eddie.
What? If you connect diodes in series, their voltage drops stack, resulting in lower efficiency. Active rectifiers have the lowest voltage drop, but they require several components (mostly power MOSFETs and a controller).
Is there a course in university that you know I could study that has: - Electronics (working with circuits) - Arduino - Has job opportunities My parents say that I shouldn't study electronics because there aren't many jobs for it.... Is this true? (I live in Australia BTW)
The electronic repair area is fairly narrow with china selling new good often cheaper than the cost of repair. In Australia google these courses UEE22011 or UEE62111
im studying electronics and my parents say its a good idea because in australia there are companies looking for people who do electronics because the field is dying out and needs more people to get it going again
What do they recommend? Politics? Law? Study electrical engineering and if you do not get a job in Australia which I dought come to Europe or America. No job shortages for engineers here.
Who would have thought while in school that one day they'd be watching electronics classes for entertainment...
I do and I'm still in ee school, so me I guess
i know right....😄😄😄
@@paulsampson6286 same
@@scaricraft3995 same
Same here. I skip electronics classes often, and now i love it.
You showed in only 7:30 minutes what I took 2 months in Electronics class to learn. Congratulations!
Yeah, this should not have taken so long to explain.
Wish he was our teacher
Love this lesson, remember when I first learned all this back in the late 70's, it was so amazing to me. It's magic!
Never actually seen what happens when the "speed limit" on a diode has been reached. Well now I have.
Great and clear explanations as usual.
Thanks
Great video, keep up the good work. I really appreciate the detail you put into your projects and lessons.
Oh man I would give anything to have your brains. Watching your videos is like new world for me. I have to start learning some basic electronics. Keep up the good work.
Great explanation for the application of schottky and zener diodes. Revisiting this hoppy from a long time ago this was a good refresher.
Your teachers must have loved you.
Thank you for sharing your vast intimate knowledge.
Intimate?
@@xsauce3858Ooo la la.
Good video, you keep improving the way you explain progressively, before I had to pause the video and let everything soak in, but now it is just much clearer to understand!
Good to hear
Minute 1:38 By rule and convention when a current flow in one direction the voltage drop is in the opposite direction. Regards
No, that would be a generator. Consumer have the same direction for current and voltage.
GreatScott! I completely disagree. Is not a matter of generator\consumer. A diode is a component and as all the impedances by convention V and I are opposite. You will measure a positive voltage drop if you put the minus of the multimeter on the cathode of the diode and the plus on the anode, when the positive current symbol indicates that the current is flowing from the anode to the cathode (of course electrons are in the opposite direction). Isn't it ? To convince me please provide literature reference. Same observation for Vout with arrow versus ground at minute 3:03. Best Regards. Pier Aisa
I suppose now you are convinced that V and I have to be opposite. :-) Regards
Great work being done on this channel. Been a real help in my studies. Thank you for posting.
Perfect tutorial I gained a lot.
Many thanks
6:39 min is the voltage gain to source voltage (not gain to drain). Your tutorials are very usefull. Thanks a lot :)
Great vid as always!
Thanks mate :-)
How can this reply be posted one hour ago while the video is only one minute old?
My videos can be viewed earlier by my Patreon supporters.
Patreon magic I guess
Say I'm charging a 12v car battery with a step down DC to DC Converter using a 19v supply and I don't want any feedback to kill my converter, which value Schottky Diode do I use? Thanks
Great Scott is a fitting name. Great videos, thank you!
Very informative practical demonstration of these two diode types
Thanks so much for your detailed explanation and actual circuit examples.
This video does help me a lot.
Thanks, Scott! This explains some of the problems I'm having with supplying power to my project, using a MD100 DC-DC converter.
Greetings all, just wanted to interrupt and ask a small favor. UA-cam has changed their grading scale again and it is more important now than ever before to take a split second to press the "like" button for all your favorite channels. It is just one small way we can say thank you to these content providers for sharing their vast knowledge with us for free! I have seen many several of my favorite channels just stop uploading content or insert ads every 30 secs and all we have to do to prevent that, is simply say thanks by pressing "like." Please and thank you.
Combat engineer .... very well said my friend. I think it is the best way of saying " I like what you present and please keep them coming" to our favorite youtube channels .
George Kot
I agree. completely. it takes lots of time to make great videos. and ppl still need to feed there self and their families. they can't keep making videos as often. and not make a living. UA-cam should get off their high horse. and stop being such money grubbers ! and spread some of the wealth. its the ppl making videos that makes the money for them. without the videos . what would they have?
I press like when i liked the video. not just for all my favourite channels...
I could tell this was an older video because he didn't say "I will see you next time!" with nearly as much enthusiasm.
So, I have a 33.6v #eSk8 li-ion battery for my electric longboard. I have a 120A latching relay to turn it on and off but the coil requiress 24v. I've used a voltage regulator to get the voltage down from 33.6v to 24v to work the coil, could I have used a zener doide instead? bearing in mind the battery would always be in an 'on' state to the 'centre off' switch I'm using to feed the coil.
Your explanations are so clear. Love it.
This is really helpful for my oral exam on tuesday.
These Electronics basics videos are really helping me out.Hope u will make the next one about SCR's. Keep them coming and best of Luck
Thanks, but I already made one about thyristors.
Ok i will check it.
So, the channel is called "great Scott!"
That begs the question... When are you going to build a Flux Capacitor Dr. Brown?
All of your vids are fantastic and help so much.
Very useful knowledge about zener and schottky diode...thanx garte scott....!
Love the neat printing and circuit drawings! Very neat!
My life is complete now, great information with resitor and zener diode, i didnt know that and i blowed up a circuit :)
best channel for engineering
Wahnsinn, Danke Herr Prof.
Very good intro for new comers. Keep up the good job.
Interesting symbols, in North America schottky diodes typically have little J's on the cathode end and zener diodes have angled wings. Are the symbols you used from a European standard?
I think so.
In Europe, and most other states, the ISO standard is used. In North America you use your own symbols though some are the same. Resistors for instance you will note are different as the ISO standard is an empty rectangular box whereas in North America it's a zigzag
@@madcockney its even worse with logic gates
How many papers do You use per video?? I know it varies from video to video, but I'd like to know the "about-number"
+Krki Too many
Paper is better.
What bad behavior is instruction, why do not you propose that you no longer teach in schools with paper? For wastefulness direct your criticisms towards the industrialists. It's like diesel that is banned here in Europe, while the eight biggest container doors in the world pollute more than all the cars in the world but that we do not talk about and we do not impose depollution. It would be time to blame the real polluters who do it with impunity while we poor citizens are the cash cow of governments. Rest assured I do my best not to pollute and I am eco-friendly but there you exaggerate by targeting Great Scott.
@@problems-hf8ts Paper creates jobs and feeds families. :P
didiersee do you perhaps mean container ‘ships’ not ‘doors’ . (otherwise it conjures up a wonderful picture of these large smoking doors plying the oceans of the world!)
Thanks a Lot! Always wondered what the difference is :)
7:15 Not so energetic, but clearly not the happiest of diodes ^^
Just what I needed.
I love your video, I am a young enthusias so they always help me
Awesome :-)
love your videos the way you explain everything is really good like i'm 14 years old and i even i can understand al your videos easy keep making videos
Thanks for the feedback :-)
GreatScott! wow you reacted 2 minutes after i placed my comment thats nice it doesnt happen on that many channels on youtube and of course no problem for the feedback
haha 🤣
im 13 and speak german but i also like his video .
I don't know if you're then saying that he explains really well (which he does) or 14 year old kids ain't smart enough to understand electronics.
That feeling when you are 34...
Aww...man this would have really helped me last semester, anyways great video!
useful usage of Schottky diodes (although normal diodes can work there too): Using a shift register to poll multiple buttons, you need diodes to prevent the shift register from creating a short to ground when multiple buttons are pressed.
Love your electronic basics videos. Thanks
Good video. I'm glad you are making these
GIMMIE DA SCOPE ! ... wait wrong chanel...
Lol
Full Bridge rectifier
The ReCTifiER
RECTIFIER
Great video! I have a few questions for a circuit...if you have time...?
Talk about the tunnel diode. I'm old enough to remember it use to be in every oscilloscope located in the trigger circuit. The main problem with them was the short life span.
Nice, finally I understand why there are so many types of diodes...
BRB spending even more money on components because I don't have any schottky diodes
Oh those 68 Ohm resistors of 1980s... i remember those!
very informative. I like your 101 series
I would watch a whole video of Scott just drawing circuit diagrams.
Hey GreatScott, greetings from Italy! I love ur video, and I would like to suggest a series of videos about Boolean circuits.
I've never even seen that symbol used for zeners! It might be worthwhile to also show one of the more common symbols at some point.
Also, it seems more likely that you're protecting from excess gate to source voltages than gate to drain. Many mosfets don't even list a gate to drain limit; which makes sense if you think about it.
The S diode symbol (the one youknow I think) is the symbol for a "breakdown" Zener-diode, the one used here is for a "knee"voltage Zener-diode.....
Sooo helpful. Thanks again scott!
6:15 if you put one leg over the diode and the other leg under it and twist the res a little bit, you will create a better contact because the pressure is slightly higher. :D
Thank you! Very clear and detailed explanation.
*Scott* you are *Great*
Very interesting. Making more videos like that. Thanks guy.
Hello, I really like Great Scott, I just noticed that the direction of the voltage Vf, (which shown at 1:35 minutes in the video), is reversed in the diode design. Sincere friendships.
nice bro,by the way,which first burned?resistor-z-diode-mosfet?
Great Video Scott!!!
Good practical explanation... Thanks for the video
Good video, clearly presented - thanks!
You should be a newsreader, no matter what dire issue we face, I'll find your voice for calming lol
Great Scott you are really great,it must be that Albert Einstein was from your family 😊
Super Video Bruder,sehr cool,ich schaue deine Videos mit voll Genuß 😀
Great video!!! I have a question. What is the thumb rule to select schottky diode as flyback diode for 12V dc motor with peak current of 4A?
Wonderful explanation. It's a pleasure to watch your videos. I do not know what you are doing in life but you should be a teacher. Would it be possible to explain in video the control of the liquid crystal segments? Supply voltage, consumption current as well as some integrated control circuits without going through arduino please. Congratulations, thank you from Belgium.
Nice video with full of knowledge thank you sir
This is very good. Thank you!
Very good explain! Would be nice a video about TVS/ESD diodes, and the differences about the unidirectional/bidirectional type.
Are there any discrete small-signal Schottky transistors in production?
Please create a playlist of Electronics Basics series. And mention in the description.
The zener is Clipping of those voltage above 15v in your example, because it will force a larger current to Flow since it becomes conductive. This then ends in a voltage drop across the resistor in Front of the zener.. is that how it works?
No.
Zener diodes are simply diodes which have been designed to have a low reverse breakdown voltage. They are diodes which are placed deliberately into the circuit the wrong way around, compared to a non zener diode, so that they are normally reverse biased. However, the zener symbol and anode, cathode connections take account.
The reverse breakdown voltage is negative. Diodes are normally intended for operation at a voltage greater than the reverse break down voltage.
So if for example the reverse breakdown voltage is -100 volts, you should operate the zener at greater than -100 volts, which means between -100 and some positive value, typically 0.7 volts
If you operate the diode at a lower voltage ( = at greater negative voltage), for example -120 volts then you will damage the diode. The diode becomes a short circuit. From 0 volts to -100 volts it has a high resistance and only a tiny current flows. When you go below the -100 volts the diode breaks down and the resistance greatly reduces.
Now, a zener diode is just a diode where instead of a reverse breakdown voltage being large at -100 volts, the voltage is set to a much lower voltage, for example 3.1 Volts, 9 volts.
If you connect up the zener in the right way so it is reverse biased, and you apply a voltage of greater than the stated zener voltage, the diode breaks down and the resistance, just as in the example above, reduces greatly. You do not want to do this in normal operation to non zener diodes as it permanently damages the diode. If you were using diodes in a full wave bridge rectifier running at 230 volts AC RMS, you would use diodes with a reverse breakdown voltage of typically 400 volts, which is a voltage that is higher than would normally be encountered in operation.
The series resistor with the zener does two things: it limits the current passing through the zener and prevents it burning out.
The second thing it does, it allows a voltage to be developed across the resistor so you can feed the circuit with a voltage higher than the zener voltage and the supply voltage is then divided across the resistor and the zener enabling the zener to have the right bias voltage across it to enable it to "breakdown" at the correct zener voltage.
Zeners are great, because they are designed to "breakdown" at a carefully controlled voltage, which means you can use them as a fairly accurate voltage reference. And then you can compare other voltages to them.
So for example, if you wanted a low battery indication circuit, you would use a zener and compare the battery voltage to the zener voltage and use a voltage comparator circuit or chip (or an op amp) and then use the output to drive an LED flashing circuit
hi i have a motor driver which am using to drive a coil CW and CCW to create electromagnet but when the coil collabse it destroy the motor driver can you suggest what to use to protect the motor driver , the power supply for the motor driver is 27 volts 22 amps thanks iin advance
Good presentation!
If I wish to use a small panel cell to power a fan it makes noise until voltage/current from the panel match minimum requirement( in partial sun coverage), would a zener diode alone or with a cap in parallel as a buffer/battery be able to not turn on the fan till the requirements are met?
Hey. Good day ms greet Scott. I have just a little bit question. Does the smaller diode have small about of current output even if your power source have a greater output and voltage?
I watch your videos mostly to see how you write or draw :))
@4:14 What does "low blocking voltage" mean?
I went to Electronics school in '79. And even though I moved on to Woodworking. I still like to see the new products at Digi-Key.
nice, you even add magic smoke in the end
Hi
In some logic ic outputs there is some unwanted negative short pulses after falling edge that can damage the microcontrollers inputs.. what circuit can block them can diode be used for this??
At 5:52 there's an error:P is power,that fits,but voltage is represented by U not V.
That is a regional difference.
I've heard that schotky diodes are used in wireless power charging, is this because of their high frequency stat?
Awesome. Keep up the good work
Great Scott!
the ihk exams for electronics professions like mechatroniker for example expect you to to calculate with an Izmin which is 0.1 times the Iz you calculated for the zener diode in this video to protect it from the eventuality of over current
Hey Great Do u use a raspberry pi ?
All of ur projects use arduino. Can u show something with a pi please
great video great Scott!!.. would you know how to build a voltage regulator for a automotive alternator??? that is a subject I'm stuck on. I have heard a 12 v alternator can be converted to 24v. by building a regulator . can you answer this. or do a video?
If not mistaken, the point of the arrow must point to the higher potential (positive) at 00:17.
He is doing the opposite, pointing to a lower potential.
Joey Mac For passive components, the point of the arrow should point the highest potential (think highest potential as the point of the circuit closer to the Vcc). The current arrow is correct, the current flows from the Vcc to Gnd (considering that it is forward biased), however, the Vf is wrongly represented, because the anode is the highest potential, instead of the cathode :)
www.khanacademy.org/science/electrical-engineering/ee-circuit
We never used arrows in school just plus and minus signs.
This helped me with my YT channel content of modifying a black and decker light. The COB lights I wanted to use kept pushing resistance back to the voltage regulator board and shutting it off. Using 1 schottky diode per COB strip on the + side made everything work perfectly. Now the negative terminals get warm (50C). But the GSM6232 variable voltage regulator doesnt even get 45C. Thinking of using 3 more on the negative side. Thanks! (DruCanDoIt) is my future channel. Building content. Have 3 videos edited and ready to go so far.
heres a good thought.
I recently purchased a oscilloscope which came from a high school.everything was perfect.today i get it out hook it up and no display.I opened it up and on visual inspection i found a burnt out diode the leads on both ends had burnt off.I have no schemtaics its a mini diode zener i know that from the board but cant find one that looks like it.It has a green stripe which tells me orientation.the other colors are 2 blue stripes.It mini so no numbers on it only those 3 stripes.So what do you do in a case like this?" it goes into the crt circuit
That magic smoke in the end ☺
On this smoke and electronics works ;)
Great video.
Yet another great educational video mr. GreatScott:-)
Perhaps you could make an in-depth video about the pros and cons of using schottky in battery powered Applications? For example:
The lower the forward voltage drop, the higher the reverse current. Or why it's a good idea to place a diode across the pos. and neg. pins AFTER the fuse in your device. (If you reverse the polarity by mistake, the diode will act as a short circuit and blow the fuse. And it won't impose any voltage drop using this method)
Perhaps you could also talk about:
Gunn Diodes
Shockley Diodes (not a typo)
Transient Voltage Suppression Diodes
Varactor Diodes
(I'm not shure if i have mentioned them all)
Thank you for your contribution to the tinkering community!
Bo Holbo Rasmussen - Those type of diodes are perhaps much less commonly used than these two. Don't forget about light emitting diodes and photo diodes....
Eddie Fox
Hi there. This is a great explanation that has helped me understand Schottky and Zener diodes. I wonder if you can help me understand what is the best diode to protect an h-Bridge chip like L298N please. I have used 1n4001's but the h-bridge gets very hot (I'm running it on 12volts with "solenoids" low frequency = 20 - 1kHz but "enabling at" 20kHz roughly).
If I run my little circuit with the cheep L298N Chinese board everything runs just warm (as you would expect) Runs at about 1 - 2 Amps. I notice they use "M7" diodes. Are these Schottky?
My circuit uses standard pin through, not SM components so the M7 would not be practical. I have seen some say the equivalent to the M7 is the 1N4007 but then I see the M7 listed as Schottky?
Some even talk about using a Zener diode for H-Bridge protection.
Can you please advise me on what would be a real equivalent for the M7 please?
1N5817 "family"? The fast rise time (high frequency) response seems to make sense to me on an H-bridge driving inductors.
Thank you so much. I'm not a degree electronics student just a hobbyist interested in circuits. Have subscribed!!
If you've really got 5 minutes of you life to waste here is some thing similar to what I'm talking about before I got the Chinese L298N board (take no notice of the 1n4148's used!! :)
ua-cam.com/video/h0nlACgOwns/v-deo.html
Regards
Eddie.
great work.
Ignoring the resulting voltage drop of over 1 volt could the disadvantages of a schotty diode be negated with a standard silicon diode in series?
What? If you connect diodes in series, their voltage drops stack, resulting in lower efficiency.
Active rectifiers have the lowest voltage drop, but they require several components (mostly power MOSFETs and a controller).
Thank you! How to measure a defect Shottky Zener …?
I think you are improving at explaining things on your videos. I could fully understand everything, unlike most of your other videos. Thank you!
Is there a course in university that you know I could study that has:
- Electronics (working with circuits)
- Arduino
- Has job opportunities
My parents say that I shouldn't study electronics because there aren't many jobs for it.... Is this true? (I live in Australia BTW)
QuickPro Studios also interested in this
The electronic repair area is fairly narrow with china selling new good often cheaper than the cost of repair. In Australia google these courses UEE22011 or UEE62111
study Electrical Engineering, definitely no shortages there but idk about Australia.
im studying electronics and my parents say its a good idea because in australia there are companies looking for people who do electronics because the field is dying out and needs more people to get it going again
What do they recommend? Politics? Law? Study electrical engineering and if you do not get a job in Australia which I dought come to Europe or America. No job shortages for engineers here.
Can you use diodes in parallel to increase current flow?