MOSFET or BJT? Which is better to use with Arduino

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MOSFET or BJT? Which is better to use with Arduino
Arduino with Transistor Code: pastebin.com/BjyK8gsu
Yes!! I now have merch: teespring.com/stores/learnele... Electronics themed T-Shirts!
HEY YOU ABOUT TO POST SOMETHING STUPID:
Yes, I know my hands are large/fat. It's because of a heart condition I suffer from called Congestive Heart Failure. Here's a link to some information about CHF: cle.clinic/2TdS2Ux
One of the symptoms is that is causes fluid retention, mostly in the hands, feet/ankles, and face.
It will kill me one day. I'm doing ok right now, but someday...
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Please check out www.patreon.com/learnelectronics and pledge a dollar if you can. It will go a long way to keeping the channel alive. It costs a bit of money to buy all the items and produce these videos. You help is appreciated.
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Here is all the gear I currently use:
Oscilloscope: Micsig STO1104c amzn.to/2UPPZeg
Power Supply 1: TekPower TP3005N amzn.to/2TeQnxI
Power Supply 2: RUIDENG DP50V5A amzn.to/2sNicSe
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Soldering Station2: KSGR T12 amzn.to/2Wk7Dn9
Light Meter Smart Sensor AS803 amzn.to/2B2gyRg

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Опубликовано:

18 июн 2019

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Комментарии : 243

@iandawkins2182 5 лет назад

Go for it man, funding RU-vid videos like you do is getting harder and harder. As long as you don't compromise what you believe in or sell out just tell the truth what's to lose and we all still get awesome informative videos.

@Elfnetdesigns 5 лет назад

"sell out to tell the truth"? what? Don;t you mean "sell out to lie?" I would rather a youtuber or anyone tell me the truth than lie to me..

@anispinner 5 лет назад

Go for it, Paul! :) You've earned this chance the hard way and from what I've seen their promotions are not intrusive in any way.

@bartonstano9327 5 лет назад

Do the contract 1) you like the service/quality of PCBWAY 2) stable income good 3) I would love to see a simplified in depth multi part video of you doing a project with all the steps on a PCB

@ttibor 5 лет назад

Sign that contract, you deserve that money. :)

@stephenkelly6301 5 лет назад

Go for it! It funds what you want to do. As long as you disclose that it's a sponsored video, no one can have any complaints. Perhaps you could create these videos as a series with a theme running through them?

@Elfnetdesigns 5 лет назад

There is ALWAYS "that guy" who calls people a sell out... so yeah there will be complaints which IMO is a projection of jealousy, How it works: The person complaining does not have a sucessful channel, or leads a boring / monotonus life, works a dead end job, whatever, and cannot make youtube money so they get bumhurt and call youtubers who are making money through sponsors sellouts.. It's literally that.

@Kimchi_Studios 5 лет назад

You deserve every cent. Go for it. For anyone interested in detailed transistor info check out the book vol 1 of Electronic Components by Charles Platt, it goes into detail if you like that sort of thing. I love to use NPN MOSFETs with AVR chips cuz its just easy. Basically...they are different flavors of magic.

@lindadanforth-md8hc Год назад

u mean NChannel, not npn

@MitzpatrickFitzsimmons 5 лет назад

Congratz on the contract Paul. I think thats excellent!

@michaelpadovani9566 5 лет назад

Enjoyed following along in this video, a great question answered! I think the sponsorship is a good idea, go for it.

@insoft_uk 5 лет назад

Just do it, it’s money at the end of the day and your videos will still be watched so win win

@wreckless_-jl6uu 5 лет назад

*YAY, another video from my favorite RU-vidr, love your content man!*

@gordselectronicshobby3853 5 лет назад

My calculation is 3 watts not 1.5 watts. Yes for 5 volts it will be 1.5 watts Am I right or is my mind going?

@LimbaZero 5 лет назад

in bjt case it's about 1.5W for lamp and 1.5W for bjt (emitter follower). Also mosfet had issues. Usually you connect loads to ground with bjt or mosfet to get best effiency.

@shmuelyakov 5 лет назад

Go for the contract. I don't see how it's selling out. You'll still be teaching us and imparting valuable information.

@friendfrompatreon9114 5 лет назад

Exactly. Since he is teaching us along the way, I see no problem not spending money on manufacturing. Let the Chinese pay for it:)

@dzjralkmaar 5 лет назад

Go for IT, you are one off the best diy electronic channel, no shouting of bad sound. I like tour video's Please dont change te way of making your video's

@slhurtt 5 лет назад

Didn't see the whole contract but it appears clear in it's intent. Would suggest for each 10k view they continue to support you with a residual up to whatever seems fair. At least a 5 year term. Future hobbyists will gain experience from the projects you produce. Really like your stuff. You give us enough time to soak it up. Thank you and keep on keeping on.

@captainpugwash4100 5 лет назад

I don’t see any reason not to try it out for a year! The promotional video terms look right for you, as you don’t make PCBs from scratch. A visible sticker or other PCBWAY product in the video and a sponsorship 🔌, seems OK to me. As long as your PCBWAY product evaluation stays independent, and you can tell it “how it is”, I don’t think it would be a conflict of interest. Go for it, try it for a year, most of us know how expensive it is keeping up with the ships arriving from China!

@newsogn5148 4 года назад

The best introductory explaination of BJTs and mosfets you didn't get bogged down In the lingo!

@mikeburton8687 5 лет назад

Sounds like a wonderful opportunity to me. And who better than you?! Look forward to more great videos

@alemarcortega1594 4 года назад

You deserve it, people still respect you and your the best teacher. Sign that contract!

@jonasschulz5068 4 года назад

You should use a pull-down resistor on the gate. So the MOSFET doesn't stays on. Otherwise you have an floating pin and it turns randomly on and off when you have an electro magnetic field around you.

@JohnBailey39 5 лет назад

I say go for it. Check first, what happens if you have to miss a scheduled video for health/life reasons, or anything like that. But as long as you state the video is sponsored, I can't see it doing your credibility any harm at all. Sponsorship does not mean loss of creative control. And PCBWay seem to be fairly interested in the hobbyist market.

@drescherjm 5 лет назад

I think you should do this Paul. It may also add some additional interesting content to your channel. I have not used any of these services yet but may be interested in doing so in the future for some of my projects.

@friendfrompatreon9114 5 лет назад

I just tried one. Pretty good. Do not wait, it is much easier than it looks

@johnramsay1827 5 лет назад

Very good explanation of the BJT vs MOSFEt. Thank you. As for the PCBWay contract, I say yes, go for it. I think it will lead to many interesting videos. The only suggestion I have would be to do a test order with them and few few others to make sure you prefer them before committing. Best of luck and I look forward to the outcome.

@athanasiosstefanopoulos5211 5 лет назад

Yes, sign the contract. You share knowledge and you desserve it. I am pretty sure you will have some good PCB videos to shoot and share with us.

@andyhubbard7374 5 лет назад

Absolutely go for it! IMO selling out is only when people recommend stuff they wouldn't usually. Great video btw :)

@faissalhady3641 5 лет назад

Go for it Paul you deserve it

@MegaHD007 5 лет назад

Go for it, you earned, ask for more next year.

@asharsumari9313 4 года назад

every idea ...helps and infomative.Thanks

@daveodessa 5 лет назад

If you go for the contract (and I think you should) what happens if you want out before the end of the contract?

@torjusaanderaa3749 3 года назад

Maybe a little late for the debate, but yeah, take the money! You really deserve something back for delivering these videos, they have been of huuuge help for the projects i'm working on. It's so amazing that we live in a day an age where people like you who are willing to passionately share thir knowlege for free actually has a platform to do so and share it with the whole world. But it's allso only fair you get paid for it Peace! ;)

@TBL_stevennelson 5 лет назад

You can do a video on your experience after 12 months on weather it was worth it. Pros and Cons. Good luck

@cad3175 5 лет назад

...well done and nice pace, thank you very much 👍

@radius.indrawan 5 лет назад

As long as they won't dictate for what you are going to upload in the future, I'd say : go for it professor! you deserve it!

@Leif_YT 4 года назад

@11:10 is there maybe a mistake? From what i've seen in other videos and Wikipedia says Drain is connected to the load and Source goes to the power supply.

@robina.jensen6114 5 лет назад

P = I x U (Normally: P = U x I) => P = 0,315 x 10 = 1,5 W !!! Say What??? Look at the DPS it is correct 3,15W !!!

@learnelectronics 5 лет назад

Yes

@utkf16 4 года назад

Can you explain this please I was expecting 3.15W

@bac912010 3 года назад

so did he do it? hope so. 250 aint much but would pay for part thanks i like the way you explain stuff. i just started researching mosfets. most people sound like theyre reading off the same script when reveiwing or explaining stuff on the internet. opinions shine new light on subjects

@j9090170 2 года назад

here in 2022 and this was very informative for a new person looking at electronics as a hobby.

@learnelectronics 2 года назад

That's why I'm here. To spread the knowledge for free.

@dheujsnrhfydhehehshshhdggsd 5 лет назад

I don't mind sponsored videos. So long as you disclose it. Especially for your style of projects i think there is little issue of it getting shilly since most of your projects are open source. I am surprised how few projects videos across RU-vid are not prepackaged with a "here's the parts list, but we packaged all the parts you need in this box." For most of us we can't see the savings on components or time of finding a box of 100 for a penny per. Yet with a prepackaged plan we get the parts on the cheap without hours of hunting. And video creator can mark things up and make a scale profit. I enjoy your cheerful demeanor in the videos. Thank you!

@albertvdm 5 лет назад

Go for it Paul. Sign the contract. Thanks for this video. I've been trying to figure out what is better. I prefer mosfet because it work better in my applications. I try to use BJT as often as possible because it is a bit cheaper. But I am still learning.

@ronwilliams7611 5 лет назад

Great channel. I've learned a lot!!! Thank you!!! Go for the contract!

@pavankumar-ff9bo8zc5y 5 лет назад

Go for it!! You deserve it 👍

@elektito 5 лет назад

Definitely go for it.

@SkullDraizer 5 лет назад

I say accept the contract Paul. I see this as a positive for you and your viewers. I'm planning to try PCBWay because of this.

@l9day 5 лет назад

I'd love to see an end to end PCB thing, like designing a circuit, plotting a board, what tools to use, ordering the board and the final assembly. Even if it is locked with one company for a year it would be informative in general.

@elgrapadura1453 5 лет назад

Go for it. As long as you declare the parts that are sponsored content, then the viewer can judge for themselves. there is nothing wrong at making some income at something you enjoy if your up front. Cheers mate.

@spit75d Год назад

Would a MOSFET also be the best choice for learning to build logic gates from transistors using the Uno for input and output?

@vidanatural_oficial 5 лет назад

I usualy uses N-channel Mosfet em NPN BJT after the load, not before like you did. Of course you know, using in that way, the load will receive the power with a voltage drop caused by the internal resistense of transistors, the voltage drop incriase proporcional with more current. It is becose I don´t like to use in this way. Before the load, only P-Channel and PNP transistores. The new question is: Arduino and IGBT transistores, does it works? It will be a very nice subject to another video. Thank you.

@LimbaZero 5 лет назад

How did you connect that bjt. If that's 2n2222 or same pinout then you have emitter follower then you have about 5v CE voltage drop. So it will get very hot. Use base resistor and connect emitter to ground and load to collector. Edit: Also check what is Vge for used current with that fet. When using NPN or N channel mosfet as switch then use it to switch load to ground. if you want to switch VCC to certain device use P channel FET and NPN for controlling it. If this was bait then whole bait is now gone :)

@Roger-sp2ug 5 лет назад

Go for it! Sounds like a great deal to me!

@gfodale 3 года назад

I think you should have touched on frequency, which would have made a use case for the BJT I think. I hope you took the money, considering it was a 1 year commitment with little restriction.

@MYNICEEV 5 лет назад

It is only for a year my good friend. If you only do 4 videos in that year. No problem. We will all be here to support you through your endevour. As Tweeki would say "GO GEDDUM, BUCK!" Have a great day.

@thorstenherber3966 5 лет назад

Go for it and continue to make great videos!

@g00glian0 5 лет назад

That is awesome about the MOSFET. Once the gate is forward biased, you can remove the gate voltage and the source to drain to drain stays 'on'. And a BJT requires current to activate, AND stay flowing from the collector to the emitter. Total light bulb moment for me! Do the contract! I will kill to have a gig like that!

@oviuan2 5 лет назад

Definitely, take the contract :) It’s your work, man. Congratulations

@Ascania 5 лет назад

Any issues if you cannot meet the schedule in the contract? A specification about the content/length/format of the videos?

@learnelectronics 5 лет назад

5min minimum. I had a lawyer go over it. He suggested one change.

@isoguy. 5 лет назад

Hi, Be very carefull, other youtubers have signed similar contracts that essentially sign away all your revenue to the vids and any similar vids you may make after the contract ends. Not saying this is the case in this instance but if is as simple as you suggest then I have no issues. Your vids are always good, very interesting and educational. Thanks for sharing your skills.

@shaunhicks85 5 лет назад

I agree, make sure you arent giving away something valuable. Maybe have a lawyer look it over?

@learnelectronics 5 лет назад

It is with a lawyer.

@shaunhicks85 5 лет назад

Yay!

@JamesFraley 4 года назад

Great video. Go for the contract, just be open about the influence. Also, can you make a video like on ESP8266 or ESP32? The difference is the 5v vs 3.3V. That mean the ESP cannot drive an MOSFET that requires 4V. I've been having a hard time finding a usable MOSFET. Thanks

@krzysztofmatuszek Год назад

IRLZ44N - a little expensive at 2.80 PLN where I live (0.6 USD now), but work every time and can deliver 5 amps at 60 volts, good even as BLDC motor drivers.

@rafaelestevam 5 лет назад

Go for it !

@ibnewton8951 5 лет назад

*_Could you please show us your lab so we can see what equipment you use?_*

@learnelectronics 5 лет назад

I will

@bipolarchemist 5 лет назад

I say go for it and if you'd like some PCB ideas, I have a few I'd be happy to share. And money is good, all the better if it helps to keep the videos coming and more test gear showing up for review. As for the video topic, I prefer mosfets. It is a lot easier to provide a target voltage (for me) than to fiddle around with current driven devices such as BJT. At least for the task that I commonly use mosfets for and I have a nice selection of FETS that work well with my 3.3V devices. And for anyone using a MOSFET, I'd always recommend at least a 10K going from gate to source. I'd hate for some random cosmic rays to turn on the MOSFET at an inopportune time, or a careless touch of the FET while doing other stuff.

@jfgobin 5 лет назад

Why are you using a common-collector/emitter-follower to switch? Given that the output of the Arduino is 5V and the supply 10V, your transistor is always guaranteed to dissipate a lot of power.

@onetruth9644 5 лет назад

Interesting. New at electronics, but how did you calculate the 1.5 watts? Your meter indicated 3.15. Is there more to it?

@learnelectronics 5 лет назад

My mistakeveith maths.

@boots7859 5 лет назад

Good video. However I would think the #1 reason would be that MOSFET would allow you to run all 32 pins without any additional parts count besides the MOSFETs. You could do the same with BJT's, however in addition to the 32 BJT's, you'd also need 32x resistors or SIPs to BOM. Plus, you might still have to watch 100mw Arduino package limit depending upon how much current each BJT connected pin required.

@doctorbo5810 5 лет назад

0.315 Amps * 10 Volt = 1.5 Watts ??? ;)

@friendfrompatreon9114 5 лет назад

Math is hard for an American. Cut him some slack. :)

@grandpaobvious 5 лет назад

You don't have the full 10 volts across the transistor because it is in series with the lamp, as well as with an emitter resistor, if present.

@g00glian0 5 лет назад

How does one 'turn off' the flow of current in a MOSFET once it has been 'turned on' since removing the voltage no longer applies?

@learnelectronics 5 лет назад

Make the gate less positive than the drain.

@galihtanu 5 лет назад

I agree with u. But the most easy component to buy in my local store is resistor capasitor and transistor. So i prefer to use transistor because it easy to find. And by 5 volt i can turn on it via 5k resistor. And for current teoriticaly 1 miliamp. Still save for MCU.

@TheWeepingCorpse 5 лет назад

I've learnt a lot from you. Take the contract buddy.

@andarthome142 5 лет назад

Great explanation Paul, i don't see no reason for not try this for a year, afther all you get paid for your video's it's better then nothing, as always thumps upp :-)

@icenesiswayons9962 5 лет назад

You're right about the opinions of usage for either package. I'd rather go with the MOSFET too for reasons of easily controled power isolation from a fragile adjacent circuit. Contract.....I....don't know of course they'll monetize it. Question is can they monetize you better than you can do it yourself? I would get an attorney to check the contract for any loopholes that may exist, in order to capitalize your abilities over your existing you tube channel. They could be after what they may think you are capable of doing or creating for them, while in the process eliminating your claims of any personal creation associated with their channel. Then who knows, may be the best moment of your life. I hope the best for you. Just be careful and stress conscious for your health benefit. Keep in mind, any kick starting campaign's are extremely stressful! In case that may be what they're after.

@MrVosh-nj2lc 5 лет назад

I agree. But what if something happens in which you are unable to fulfill the contract's specified videos? Will you have to forfeit monies to them? What penalties will you incur if you want out of the contract before the end of the contractural agreement? Perhaps an attorney's input may help you draft a counter proposal with the appropriate caveats. Aside from these points, I say go for it. You, of course, will then become a manufacturer's rep.

@matiasramos2409 5 лет назад

Go for it Paul! :)

@peterdavidson3242 5 лет назад

I agree with the others Paul. You can use the money for some math lessons😉 and then use the rest to continue to produce your excellent, down to earth videos that we all enjoy so much.

@jamest.5001 5 лет назад

Do it !!! I'd like to see a bit more stuff like that ,, ,, ,,

@NewtonianT 5 лет назад

Hello Paul, really loving your channel (I've been a subscriber for several weeks now) I think you made a little lapsus calculating the power consumption You have P = V * I = 0.315A * 10v but should be P = 0.315 A * 5 V since you've said it was 5 V feeding into the light bulb. With 5 V it effectively producess 1.575 Watts, (otherwise would be 3.15 Watts). Best regards :)

@learnelectronics 5 лет назад

I did

@kinbradley6288 5 лет назад

thank you Mr

@Elfnetdesigns 5 лет назад

Ya know if you are in or from India a relay with no EM diode switching mains voltage and loads and no isolation is the best option... XD I use mosfets to drive contactors thet switch heavy loads at mains voltages of course these are 24 volt contactors and have their own power supplies and snubber circuits. I used to use power BJT's but I found they would fail prematurely so I switched..

@dalenassar9152 5 лет назад

Do it! The most valuable thing you get, by far, is a name. That's priceless! I did something similar in the 80's, and became well known in the electronics industry. I was well known by people like, Don Lancaster, Forrest Mimms, Steve Ciarcia, etc. They were calling to ask for more articles for there magazines--no you tube back then. I got mail on one article for years!...not to mention book offers from places like TAB.

@gartsherriejunction4643 5 лет назад

Hi Paul. Love your channel and the reason why is that the channel has professional integrity and you choose what you would like to show your subscribers. Now, if someone comes aling and offers you up to $6000 a year to promote their products to the exclusion of all otgers, then will your own independence be called into question - your professional integrity. You could try contacting the other PCB manufacturers, and stopping short if a dutch auction where the highest bidder wins, see what these companies would pay you NOT to go with one supplier. Iv you have the clout, and by that I mean you have a large enough following which means you have influence, then they should listen to what you say to them. At the end of the day, it is your choice but you are in a strong position as you hold all the cards. If you do take the contract, may J advise that you speak to a lawyer before signing andd ask the company behind the deal to pay for you to get this advice, just to keep you right. They should agree and I would also see if the consultancy fee is negotiable and try to get this payment increased. You don't agree on the first and only offer. Good luck and keep well. Mike

@raym9691 5 лет назад

Super great video very useful

@mauricepetit9986 5 лет назад

Go ahead Paul, do it. What have you got to lose. Thanks again for the great videos.

@dbrckovic 5 лет назад

As long as you disclose it (as you just did), I don't see a problem.

@MalagasOnFire 5 лет назад

Well grab the first transistor :P. For low pow and speedy BJT's, for high power Mosfet. About contract why not? Don't forget to read the little letters....

@karlkawano 5 лет назад

I'm in agreement with Ian below.

@kaustubhponkshe6186 5 лет назад

Please make video on Tuned transistor amplifier design

@dannyjensen4954 5 лет назад

Go for it.

@georgechambers3197 5 лет назад

Paul, if you don't go for the contract, well I won't say it. 😀 I like Mike Oliver's idea of projects we could all build together. Is there such a thing as a universal MOSFET to keep in the box or do you need something specific to the project? Sign it now, thanks for the video!

@niklaswennerstrand1010 5 лет назад

Do not sign any contract before you have gone over it with someone that knows how to interpret sponsor contracts. What happens if you get sick and can't produce the videos that you have signed up to produce etc? Who will legally own your videos according to the contract? Can you resell your videos to other sponsors in the future? It is probably fine but you should always know what you sign.

@erikvincent5846 5 лет назад

What about IGBTs and JFETs?

@RickeySmithEric 5 лет назад

Do it Paul! Sign the contract.

@emilioestebancifuentesopit870 5 лет назад

I don't watch the video yet, but o thing in the MOSFET, because in a MCU you can control the voltaje lvl (3v3 or 5) but you can't control que current.

@MCsCreations 5 лет назад

Thanks for the tips, dude! 😊 About the contract, go for it!!! After all, you have to put food in the table for your family. Right? 😉

@instanoodles 5 лет назад

Since you say you dont do PCB stuff that often, perhaps it could be a chance to do a learning video about designing a circuit and making a PCB for it.

@fernandogomes2514 4 года назад

very nice!

@rursus8354 5 лет назад

You should go for it, you deserve it.

@utkf16 4 года назад

Im late to this discussion on whether to take the contract or not but here goes: DO IT!. Why not? you take the time to share your knowledge so why not get a few quid for it (UK, one quid = one pound: current exchange rate July 2020 one pound = to 1.27 dollars) :) Enjoy, we do.

@learnelectronics 4 года назад

I did

@Vamavid 5 лет назад

Shut up and take the money! I think the contract offer speaks to the quality of your content! I am happy for you, dude! Keep up the good work!

@mikeoliver3254 5 лет назад

If you are striving for low power use then MOSFET’s are the clear winner, just because they use zero current at the gate. I really only use BJT’s for oscillators any more. As for the sponsorship go for it. You could do some fun projects where viewers could order your board designs and build the same projects. I already have a few ideas but I’m sure I’m not the only one. Great video Paul, have a great week man and I am looking forward to hearing what you decide.

@robertedwards4113 5 лет назад

Hi, I think that commiting to something like this with constraints and conditions means that it may affect your creativity for future videos. I find your videos helpful in that they are balanced between those with a smattering of knowledge and those with very little knowledge of electronics, ie easy to understand. You never know what you may feel inspired to create in response to a specific question, so do you feel that you could be inhibited by this contract. You know in your own mind whether it's a good thing or not, maybe I just overthink everything.

@hometv9757 5 лет назад

Definitely go for it....as long as you maintain factual, real world informational videos, you cannot go wrong with your audience. At least, not this particular audience member.

@meddjihed9108 2 года назад

Go for it, no u r not selling out, sign the contrat, I would do it,,, thanks for the vidéo,

@willhelmx8388 5 лет назад

I agree with the other guy´s here Paul - we are using PCB way, and they are easy and nice to work with, so why not make a buck when you can.... Also since it is very cheap to make a professional board today i think that many of the guy´s would have an interest to see how it´s done. - On the other hand you need to have a few videos including some design programs as well to be able to send the layers to PBCway :-), but go for it dude... 73´s /A (Sm7Hce)