Buck Converter

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This video provides a basic introduction into the buck converter circuit. This circuit is a dc-dc converter designed to step down the voltage while stepping up the current.
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Опубликовано:

25 июл 2024

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Комментарии : 157

@TheOrganicChemistryTutor 6 месяцев назад

Final Exams and Video Playlists: www.video-tutor.net/

@kiche_allan Год назад

Since my first Yr in 2018 enrolled in school of Engineering, this channel has been a great resource. Towards the finishing line and am still here. Awesome work guys

@tjdlamini4062 Год назад

You are I both😁

@eswing2153 3 года назад

Great job!!! Nicely explained just how I learned it in school. It’s wonderful to get such explanations available on RU-vid.

@williamfolk3099 2 года назад

Fantastic explanation with a very easy to understand steps during the tutorial. Then with the math added to demonstrate the outcome. Great Job! I have read a couple other descriptions ahead of this video and this video completed my understanding. I graduated college in 1981 with a Biomedical Engineering Degree. However, have forgotten most of the rudimentary electronics over the years. This was really easy to understand and explained every element of the circuit well! Thank you!

@photon2724 2 года назад

its insane to me why lecturers dont explain like this. Soo good!

@jdmccorful 4 года назад

Good lesson, answers alot of questions as well as creating questions.

@garethcopping3213 7 месяцев назад

This is one of the best explanations of buck converters I have come across. Keep up the good work!

@mgakhtar1001 3 года назад

VL = vin-vout. Not the way you showed, otherwise it would a negative voltage across the inductor. Good videos but this point got me confused so I just went back to KVL.

@rastabanja6444 Год назад

Thanks for the correction ❤

@bondamekur4837 10 месяцев назад

Holy mother fuck man 😰

@slushy6972 7 месяцев назад

Chemistry, Biology, Algebra, Calculus, Electronics, this guy does it all

@FaraiMutemeri 3 года назад

12 minutes JUST 12 MINUTES!!!! I thank you!

@Anon-nv7bp 4 года назад

Really great video, explained much better than my teachers managed.

@christopherhall8925 3 месяца назад

You always give the best explanations.

@felixcat4346 4 года назад

The "switch" is actually more circuitry to get it to oscillate to produce the whole effect.

@akimijohni8398 3 года назад

you are the best one to understand keep going man and thanks to you i learn alot

@jessef9041 Год назад

Great video! Simple and complex all in one.

@lucaspham7360 3 года назад

Thanks for this video mate! Great explanation

@puwartech7111 3 года назад

Wow! great Explaination through this video i understood the vrm section of motherboard Thkkkku sir 😍

@skampp Год назад

Best explanation I've seen, thank you!

@haydendoan7691 3 года назад

Great explanations! Thank you.

@SohamChakraborty42069 2 года назад

At 3:00 shouldn't it be VL = Vin - Vout considering the polarity of the voltage across the inductor?

@kabandajamilu9036 3 года назад

So nice and educative like how you explained logic gates so nice

@midwestheatmechanicalinc.5148 3 года назад

Great explanation! very detailed.

@tientien0077 2 года назад

This lesson is wonderful.

@Tyfreaky1 4 года назад

Thank you for all your help and for providing great content Julio. Question, do you ever respond to comments or make posts on your Community page? I'm sure there's a lot of viewers who would love to connect more and learn more about you. We definitely appreciate your work.

@Elrussoendosruedas 5 месяцев назад

Nice job man, thank you for this explanation

@kammanmok7294 8 месяцев назад

I really like your video. Writing and explanation are clear. It is easy to understand the concept s.

@EpicGamer-ux1tu 6 месяцев назад

woah, that video really helped me, easy, understandable... Thanks!

@MuhammadBilal-im7yt 3 года назад

Excellent explanation

@sleddy01 Год назад

Phenomenal explanation. Thank you.

@Re-lx1md 2 года назад

Can't believe an ochem tutor is helping me with my power electronics homework

@PranavMaru 2 года назад

Awesome explaination 🔥

@mohanramakrishnan3287 2 года назад

Very nicely explained

@lasithaamarasinghe9251 4 месяца назад

simple great explanation

@nikolatesla399 Год назад

That's why I love youtube. You can learn the whole engineering concepts for free here that too from best teachers..

@solapowsj25 3 года назад

The inductor stores energy in the magnetic field that develops when current flows through the coil. Buck converters are useful in solar power supplies.

@NeoNeo96352 2 года назад

Thank you very much for your great explanation, it helped a lot! Greetings from Germany. ✌

@motivationalspark1681 2 года назад

101%

@ragazzotedesco4216 Год назад

fantastic Video! thank you!

@zozoconde3854 2 года назад

Best explanation! Keep it up!

@lucasianii8178 2 года назад

Thanks for nice explanation sir.

@shivamchauhan3461 3 года назад

Explain very nicely 👌

@naessenskjell 3 года назад

Thanks so much! Way better than my teacher!

@deepu3100 2 года назад

If the duty cycle is responsible for determining the output voltage, what is the role of inductor in this circuit to reduce the output voltage as you explained in the beginning like "if 5v dropped across the inductor, remaining 7v will be there across the RL" Appreciated if anyone help me to figure out this doubt.

@plinker439 4 месяца назад

Without the inductor, the RL load would get 12V 'spikes' controlled by the 555 timer instead of the 7V. Let's say RL is a 1.4V CPU, 12V spikes would kill the CPU instantly. You just 'turn off' the COIL before it could charge up to the full potential of the battery (12V).

@jasonspitzer1503 Год назад

Excellent! Thank you.

@adityakumar2649 4 года назад

I can bet you're a good singer.

@dawooduthaymeen Год назад

because he almost knows everything.

@Balo1997 3 года назад

Great video

@ahoorapersia4698 Год назад

Hi sir. Tnx for your good job. Please explain minus or negative voltage ⚡ and its applications. 🙏🙏🙏

@EnglishforCambodia97 3 года назад

Thank you

@kapitanbaobao9222 2 месяца назад

great material

@d614gakadoug9 10 месяцев назад

On discharge of the inductor, the voltage will *always* be sufficiently high to deliver current to the capacitor and/or load until it is fully discharged. This is a fundamental property of an inductor. The equation Vout = Vin • d applies *only* if the inductor current is continuous, that is, it is never drops to zero. Once the inductor current becomes discontinuous (spends some time a zero each cycle) the relationship of Vout to Vin has to be calculated based on the energy stored and delivered each cycle.

@waraysplayground26 3 года назад

Excellent!

@sleeplessrobot9398 2 года назад

Thant was great and clear ^^

@rickpontificates3406 3 года назад

I agree with everything you said EXCEPT; if S1 is static on (100% duty cycle), how do you figure you’ll get 7V out of that 12V supply at RL? With no PWM on S1, RL will see 12V after the lag time of your inductor and the R*C time constant of your cap and your load.

@user-eg1zw3ky4s 2 года назад

Thank you very much

@iancanal1675 3 года назад

Thanks for your explained... I need your help to undesrtand about solar panel control, so i can build for myself.. I need to fully understand everything about solar panel control.. Thank you sir..

@arslanify 3 года назад

Thanks alot sir

@wilisonilagi1143 Год назад

Best explanation, m just curious with the period of the duty cycle

@holthuizenoemoet591 2 года назад

Very pleasant teaching style, thank you. What happens if your load doesn't use the extra current? does the voltage increase? Is a buck converter a current or a voltage source (or neither)?

@d614gakadoug9 10 месяцев назад

In a a real circuit feedback to adjust the duty cycle to maintain the output voltage is essential. If the load doesn't require the energy stored in the inductor then the output voltage will rise and can become equal to the input voltage.

@aaditya9030 3 года назад

wow!!!useful 12mins

@abdelazeemhassan3701 Год назад

VERY GOOD

@user-du7zn1zk6w 4 года назад

May I have digestive system and type of tooth video,I hope next will be these two

@mac_uk5464 2 года назад

So most step down bucks converters use LM2596 as it's regulator, with a max iput of 40V. If I wanted a down converter that can handle 6ov input, I could use a ? as the regulator. Very well explained brill.

@d614gakadoug9 10 месяцев назад

Once you get into voltages and/or currents higher than the integrated switcher ICs can handle you would use a controller IC and a separate switch, typically a power MOSFET. Properly driving the "high side" switch for a buck converter is a little tricky. Even powering the controller IC requires some attention to detail.

@le226p.deepak3 2 года назад

Thanks sir 🙂

@youssofasiry7233 3 года назад

Thanks for your information Can you tell as witch program do you use ?

@nikolatesla399 Год назад

Thank you thank you thank you

@dmitrym3757 6 месяцев назад

Holy s., you're good!

@atexnik 3 года назад

5:27 why are you adding them? These two currents do not flow at the same moment of time, so you can't just take and sum them up. Please, clarify.

@patrickpaclibar9252 2 года назад

I think its supposed to be averaging

@abdulaziza 3 года назад

Perfect 👌

@waterfuel Год назад

What about circuit with switch in series with coil, (buck type), and needing the 2nd flyback pulse to go forward also- as additive?The diode anode is facing the source plus voltage , and cathode is at end of other diode in series with coil L. In other words 3 diodes, diode ,coil, diode and diode across coil and diode - all cathodes are facing forward, and NO capacitor is present in my reference circuit found from 2008.

@namdoyle 3 года назад

So in this example the Vout can never be more than 12v?

@sbonelobonengcongo2262 3 года назад

thanks sir

@chibuzoeze4225 3 года назад

Please make a video of full circuit diagram. Thanks

@kgopolomphuthi 4 года назад

When he doesn’t say bye😭

@jimmytorreon9615 2 года назад

Does astable multi vibrator fit for this as a switch which is square wave ?

@basiljey2902 3 года назад

So when the switch is open the current will flow from negative towards positive of the inductor and so confusing how exactly a current flows through ground and back to the load?

@ashlynnundlall 3 года назад

Do you have cuk and sepik converters ?

@AlpakaAntifa 2 года назад

Why is the voltage when turning off the switch double the amount of when turning on?

@sirgalantoe6325 3 месяца назад

If the output voltage is only dependent on the input voltage and the duty cycle as explained in the final part, does that mean a random inductor and capacitor can be chosen for the cycle irrespective of their respective inductance and capacitance?

@imanmomeni2990 3 года назад

please make more videos about electronic 👍👍👍

@hackthis1767 2 года назад

Hello 👋 can someone help me out so I have a 24volt 1amp intel stick pc hypothetical if i we're to apply the convetors for a tft panel that runs off of 12 volts 2 amps along with this pc can I run it via 24 volt 5 amp plug 5.5mm to extension to two split 5.5mm males to two separate step downs buck convetor one for 24 volt 1 amp and the other to a buck converter that is rated for 2amp should this follow laws correctly in theory since the power rail is two separate DC lanes in series

@arnokalayc2054 Год назад

Hi, I'm not an electrician, neither don't have any science base. I'd like to ask a question about "LM2596S Constant Current" buck converter. Let's say, we have 12V 1A adapter, power supply. Normally when we step down this to 3V, the current should increase in %100 efficiency to 4. I know this converter has 3A limit. So, this much decreasing the V can harm the converter? Additionally, when I regulate the converter to provide constant 0.5 or 1A, where the difference goes? Is this dangerous? I'm interested in modelling and going to use some LEDs. Therefore I'm trying to be cautious not to burn the house :) Thanks!

@jpechacek80 3 месяца назад

How do you calculate the inductor & cap values?

@JTKhopefuls Год назад

What’s the formulae to find Vin ,when given Vout,Iout and Pout?

@davesdigitaldomain 2 года назад

can anybody tell me what program he's using For drawing his diagrams?

@mandcali7613 8 месяцев назад

Hi, this video can confuse us learners. Coz there was no parr of the ckt drawn that would provide the duty cycle effect. This cld be devastating to learning if the context is not proper. But I want to thank you for the effort.

@Jinjukei 3 года назад

5:27 ... Didn't understand it well. When you add A and add B, then the sum of A and B is larger than A? Clearly yes... what's the point here?

@Zikeyboy101 26 дней назад

are you saying the output voltage isn't affected by the value of the inductor and the switching frequency?

@runbou3485 Год назад

អរគុណបង👏

@TheFlxwer 4 года назад

Could u explain the detail applications of buck converter??

@puwartech7111 3 года назад

Vrm section of motherboard

@varundesai7566 3 года назад

How the voltage across Inductor is 5V when switch is closed. Please clarify.

@andrealfiansah9432 2 года назад

What if i remove diode and place capacitor across switch?

@serg3y 2 года назад

Question, if the input voltage is changing the output will also change or will it regulate?

@d614gakadoug9 10 месяцев назад

Without a feedback circuit to adjust the duty cycle the output voltage would rise.

@christopherowens2635 3 года назад

My daughter’s 12v electric Razor scooter is too fast for her. I like to drop the voltage down to 9v. Do you know a buck converter that can handle the scooter without overheating? It’s a 10 mph E90 Razor scooter. Send me a link if you would. Thanks.

@alexisJonius 4 года назад

A week late for my exam but thanks anyway ;)

@vasiqshair 10 дней назад

At the end of the video, you say that if the converter were 100% efficient, the voltage and current are both modified by a factor by 2. Is it always the case that the factor is the same?

@successthruknowledge 10 дней назад

So are Buck converter circuits very common? Because you don't want waste heat damaging the device?

@aelejaga3780 2 месяца назад

shouldnt you have to calculate de RMS voltage in order to calculate the power on the load? which is Vin*sqrt(Duty cicle)

@uditsaxena3844 3 года назад

damn u are amazing

@sarvanasadov6685 7 месяцев назад

Hey thanks for a video, but are you sure that VL=Vout-Vinput? maybe that should be opposite like VL= Vinput-Vout?

@user-ch1ep4hi7q 2 года назад

thx

@alexs9324 2 года назад

Well, and what will happen when the circuit hasn't D1 and switch S1 will open... what will be voltage on sides of the inductor :) Will reach voltage 2V and 7V or somthing different value and it will be related to quality factor of inductor and switching rise time?

@50_fadhil63 2 года назад

If the circuit has not D1, the circuit could blow up. D1 here is called free wheeling diode, to make sure when S1 is open, there is still path for current to flow.