All about BECs for RC model planes

If you fly an electric-powered RC model plane then you need to know a little about BECs (battery eliminator circuits), what they are, what they do and how they work.
In this video I probably tell you more than you need to know -- but I hope you find some of the theory interesting and helpful.

[@StonyRC]

Bruce, you are (and have always been) one of the greatest contributors to the hobby of R/C model flyingand R/C drones. This is information that EVERY R/C hobbyist should understand before they even get their wallet out for the first time. Better still, it's bloody FASCINATING ... even for us Old-Timers. Many Thanks from the UK.

[@terminatord4]

when you need to really fully understand how an rc component works you go to school and watch Bruce's videos/class....Extremely informative video! Excellent!!! Thanks Bruce!

[@svroundabout]

I just learned more in 25 minutes than I learned in an entire semester of circuits in college! Showing my kids this so circuits don't seem so daunting as they did for me many years ago. Thank you!

[@tekoppentekoppen761]

I feel the same way. This guy is pretty much the best teacher I have listening to during my entire life.

[@redpony666]

You are the best in the west on the east side of town. Frankly my good man you are a truly dedicated philanthropic educator and you kick ass.

[@quadcopter1023]

Taking me back to my radio ham studies back in the 1980s.... great way to explain things.

[@stevegauth30]

Ya know, I've asked this question a few times and never really got an answer. Thanks again for enlightening me, as you have done many times. Your a very smart feller and a lot of us are lucky to have someone like you to learn from. Thanks.

[@rablm3]

The switching term you've described is called Pulse Width Modulation (PWM). Thanks for the video, great job explaining the concept.

[@stukingman6438]

EXCELLENT EXPLANATION! The more I learn, the more I know how much I don't know. Please keep producing these great videos - many of us depend on them!

[@logansportpilotrp8174]

Hey Bruce,salutations from Ford City PA-USA,great video,no one knows these electronics quit like you,thanks again for the great info.

[@Trent772]

Great video Bruce! It's always good to see the theory working in practice!

[@mymailmo69]

My god sir.... with all due respect you are the best to learn electronics from.. Ive been trying to learn electronics for about id say 7 yrs now on my own and never have i learned about any certain electronics without having to go over the explination atleast 5 times to be 100% sure i understand. But the way you explain things yoy make it so obviously clear i am so in tune with the way you teach! if i lived near wherever you teach i would dfinately take your class...shit you may not even be a teacher ill still pay you directly just freakin teach me please...You are one awesone dude! Good job sir!

[@Danzeeman]

Another THANKS for that vid Bruce 👍🏻 Been flying models for many years, but never took the time to understand the workings of those BECs, nice and clear explaining now did the trick 😎

[@KickassAlex92]

Awesome video, thank you for taking the time to make this video Bruce!

[@VictoryGuitarShop]

Fantastic demonstration, keep them coming, Merry Christmas!

[@herminigildojakosalem8664]

Some people just have the inate talent to explain and "show" things well. Even in ages past there were the village storytellers who awed their listeners with how well they described their topics. This video also shows good use of visual "teaching aids". Thank you for making and posting this video as well as for the other videos you've posted before. Mabuhay! (Long live!)

[@TheEPROM9]

Clever the old switch mode PSU's. Taught me some more on the details of how they work.

[@8mrLuka8]

Really interesting. It was nice to see the real world on the bench. Thanks :)

[@skysurferuk]

Love your analogies...Keep 'em coming, Bruce, cheers, mate.

[@laragrimes855]

Thanks for clarifying a subject that is rife with acronyms. Excellent job, as usual.

[@ianholt1]

Another great educational video, thanks for making thinks clear once again Bruce.

[@tomsvircev1716]

Thanks for a great video! You've taught me something I've wanted to understand for a while. Now I have to go check all my models BEC's!

[@davegreathouse7992]

That was awesome. I used to fall asleep in school....not for this one! Great job. :)

[@matthewtouma2781]

Excellent video! Very informative and easy to understand. As an electrical engineering major it's really nice to see more advanced topics in the RC hobby

[@davedeja]

Great video, Bruce. I knew what the BEC did for me but now I know how it does it. Very good information.

[@dougmcken]

I'm 57, have an honours degree in civil civil engineering and have learned FAR more about electrical engineering in the last year by watching these videos by Bruce and a few others than I did at university. I'm also enjoying it far more this time round; it's not an ordeal, it's an adventure. :-)

[@messenjah71]

I feel exactly the same way. Studied electrical engineering for a short while in college, yet I've learned more about electricity through rc trucks than I ever did at school.

[@cocemojoe]

spectacular, three cheers, and five stars. Thanks for your contribution to the RC industry.

[@joet-sk4sw]

thanks for the awesome detailed info on the difference in bec systems, very helpful..

[@davidr5343]

Thanks Bruce! You are one in six billion - the only man on earth producing such great, informative videos.

[@GaryDarling]

Great video Bruce, very educational and helpful. Keep up the good work!

[@gavansexton9234]

Great job as usual Bruce, keep it coming

[@lejink]

I've been watching the EEVBlog for a few years now.. I loved all the references to it. Subscribed!

[@MrSenorhappy]

Great video, thanks for the time and energy you put into these, greetings from California :)

[@jasoneyes01]

Outstanding! This is a very good introduction to linear versus digital power supplies. Honestly I never saw this explained on an oscilloscope, Now I know!

[@ronggrimard9430]

Always enjoy your educational videos they are very helpful and I like your style of discussing these subjects...please keep up these Great classes...Thank you

[@Dick.BaileyReading]

Excellent, I really appreciate your 'master classes'. Thank you.

[@NolaanOne]

After watching few of your videos, Sir I've gotta say : you are truly awesome!

[@machekl]

Great video!!! I enjoy very much learning from people like you. Thanks a lot for sharing your knowledge

[@franciscoduran3688]

Extraordinary video and explanations, thank you!!

[@possumheadcarpentry]

Thanks Bruce, you have just made something complicated simple.Hoping to come over to see my son and family next xmas, will try and head to toke.

[@mwigman0001]

Very, very nice explanation, thanks Bruce!

[@GioBen68]

Great video Bruce. Learned a lot. Thanks

[@TheRoggan123]

Great video! I was wondering what the difference between the different BEC's where, this really made that clear. Now I'm extra glad the ESC's i bought recently where all SBEC's :)

[@slinkyfpv]

Great job! Simple, informative and easy to understand. I always enjoy your videos. I would like to see you dive a little deeper into the technical parts of the inner workings.

[@tsviper]

Thanks Bruce, nice and informative. Hope you have a warm Christmas in the southern hemisphere. Greetings from a windy and cold Norway

[@marcotorriani2793]

Bruce: Merry Christmas to you and yours. Fantastic video, as hallways. I am learning so much!!! Cheers from Canada.

[@oconnor993]

Another winner, very important.Thanks.

[@da959]

Merry Xmas Bruce! I already had a somewhat basic understanding of how a linear vs switching regulators worked,but this video helped just that much more. Always good info even if you actually think that you already understand how things work.You NEVER get too old to learn...

[@jay011488]

I had fun listening to this review and it's very conducive. Thank you so much!

[@Crashed121]

Brilliant and informative video. I've learnt something today. Keep up the good work. 😊

[@tottoshobby]

You are a really fantastic educator ! I would love to have had you as a Teacher ! You make it so understandable ! :-) Simply Great !!!

[@CarminesRCTipsandTricks]

I have really always wanted to know how a Bik works. Thank you very much for that!!

[@HolgerAp]

This is a brilliant video! Great job!

[@Migueldeservantes]

Nice! Love the simplicity..

[@jeremysaunders9916]

Bruce as usual very interesting, very helpful to me in understanding what is going on and why we need these different components. All the best for the new year,keep up the good work you do so well.

[@Nightsd01]

That's amazing. Thanks for making this video. I'm currently making a quadrocopter from scratch, I'm programming the circuit board, radios, etc. and I recently realized that the brushed motors I were using didn't provide enough power to get it off the ground. Now I've switched the design to use brushless motors with some good ESC's. Fortunately I designed the circuit board to run off of 7.4V, so I won't need a BEC, but this was a fascinating video nonetheless!

[@blitzfultime]

Very informative as always great stuff.

[@leonardoboran5917]

Brilliant video, very well explained!

[@DollarTreeFlyer]

Wow I always love to learn more and more about this rc plane stuff and you always seem to make it so easy to understand... plz keep making this type of video...

[@RcBuddy]

Top education Bruce! Thanks.

[@alvarsamt7316]

You are a very good educator!

[@nxxxxzn]

Alvarsamt Indeed he is, one of the best I've seen on KZbin.

[@rcmonster99]

Magic !!! I wish my electronics teacher was as good as you when I was learning

[@TubeSurfer26]

Great job. Very easy to understand

[@benemdav]

Thanks Bruce great video! I learned a lot! Happy holidays

[@padroooo]

Thanks Bruce, that cleared so things up for me.

[@dominictitterton2108]

Amazing video, very easy to understand

[@SIXXPK]

Great video Dr. Bruce

[@fly15levy7]

Great draw whiteboard explained and show power supply and oscilloscope. I understand them but not words. I m sure say thumbs up

[@MikePhillips2000]

Excellent video! Thank-you!

[@zimmy1958]

great job Bruce keep the info coming on all things RC :)

[@kerrydolan8050]

Awsome explanation. Thanks foe your knowledge.

[@iloverc]

This is great information and great job on explain so easily!

[@BASANTABHATTARAI]

thank you dear for all tutorials dedicated for us..

[@drkrauel6408]

Enjoyed your lecture. Good work mate!

[@srikanthpeddara6773]

Respect to you wise sir...awesomely explained. Thank you for the crystal clear explanation.

[@jisa4gamers]

Very Very good Explanation , thank you Sir . Keep up the good work

[@Flash1940]

Very good Bruce.....you even did it without even mentioning duty cycle !!!

[@neutman]

Awesome explanation, thanks heaps.

[@ypsonar]

Very knowledgeable thanks to increase my knowledge of bec . . May Nature bless you.

[@sp4859]

Awesome lesson, thanks!

[@alanjames2333]

Thanks, that was an awesome explanation.

[@BelperFlyer]

Very good talk, Bruce. Certainly simplified and some might say over simplified, but it explains the basic idea very well. Certainly as much as the average aeromodeller needs to know. I'm a retired electronics design engineer but I still enjoyed it and watched the whole video.

[@darrellking943]

Just wanted to let you know that your video was indeed very helpful to me. I have been building models for a while now and always just assumed that the mgf of the product was giving me the right stuff to work with. But that is not always the case. Anyway thanks for the helpful video.

[@vanik7659]

i love the was ur teaching , its really helpful

[@adolphjanssen6580]

Hi Bruce, very interesting and educational video. I always learn at least a couple of things from your video's Have a nice day.

[@DKoppJr]

Very Good video, I was very informed by the O scope results.

[@LWJCarroll]

Thanks Bruce...that was very edifying for me...now I can safely make a reasoned choice when buying ESC's... and I will most likely referback to this later Rgds....Laurie

[@upde]

Hi Bruce I know nothing about electronics but started wanting to learn after I bought my first Phantom. Now I'm hooked and I'm trying to soak up everything I can. Lot to learn for an old guy like me but you make it interesting and understandable. I enjoy your post and hope you keep it up. I'm working through your previous post trying to learn all I can. Regards, Dave

[@MartinVenter371]

Brilliant stuff!!

[@TraxxasRustler27]

That was very interesting thanks!

[@vlfreak]

top vid (*****) bruce.. i 'knew' how it worked but having it explained and shown this way made it a whole lot clearer. :)

[@kellyklaask7su990]

Great video. Thanks!

[@timescapes]

very good tutorial...thanks

[@WingTipAerialFilming]

Great video Bruce, very well explained and it's great how you back up the theory with experimental evidence. I have an AX 40A brushless ESC in my Skywalker which contains an SBEC in one package and it hardly gets warm on account that the Skywalker doesn't draw anywhere near that sort of current. Separate ESC's and BEC's must be less common than combined ones as I've only personally ever seen people with the later ones.

[@cappnzak]

bloody excellent,thanks mate.

[@TheRogerx3]

Thank you bruce, "Ah that what it is" video, realy liked.. never enought info.

[@Oldvelocette]

Thanks bruce, really helpful as usual. :)

[@andrewcarolus4003]

Excellent job...time to go build the circuit myself

[@cnnlt200]

Very interesting. Thank you

[@SanderHelling]

Thank you for this very informative video! I'm reading up on BEC's because apparently my new Avios BushMule is at risk of havinf brown outs when using 4S. The 2 inbuild BEC's (liniear) are supposedly not up to the task. I'm was looking into what the BEC liniear and switching meant, for I'm going to get a 1 SBEC to replace the 2 inbuild BEC's. Really well explained, even I could understand. Thank you Sir Bruce!

[@vengeancead823]

very very very very very very good.. i love this explanations