Boost converter with FeedBack tutorial

Best & Fast Prototype ($2 for 10 PCBs): www.jlcpcb.com
Thanks to JLCPCB for supporting this video.
Short theory on boost converters. How the inductor will elevate the voltage and why we need each component. Create the PWM switch signal with the Arduino and implement the FEEDBACK. Also, final circuit with the LM2577 boost converter driver.
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Variable regulator video: • Variable voltage regul...
---------------SCHEMATICS-----------
Arduino BOOST converter: www.electronoob...
LM2577 circuit: www.electronoob...
Arduino BOOST 555 timer:www.electronoob...
--------------------CODE------------------
Feedback: :www.electronoob...
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[@ELECTRONOOBS]

I hopt that you enjoy this basic tutorial on switched boost voltage regulators. Want to help my projects: www.patreon.com/ELECTRONOOBS Thank you very much!

[@sadecemuhendiss]

Electronoobs could you implement a PID controller for the feedback to minimize the jitter of the PWM signal? So everyone can see how a PID controller can done easily.

[@mrgreenswelding2853]

I would like to make a boost converter but be 24-48v in and up to 80v 30 amps out. What chip is good for this please?

[@maotradok3790]

can we use arduino mega2560 as the microcontroller ?

[@pavadailoganathan7427]

Scr projects

[@eddiemolina657]

Do have a circuit diagram using LM2577ic with 3.7 input?

[@Ankitkumar-tb6vi]

As a regular viewer.... I don't have words to appreciate your work

[@MostlyPosative-nj5ex]

It looks like your like farming attempt didn’t work out too well. Maybe try a different fertilizer, I hear brown nose makes a good product.

[@ibrahimsaber9808]

Thanks alot man I have been in a rabbit hole with this converter for two month without a solution and i watched many tutorials and read many blogs but yours worked right away Moreover nothing was as clear as yours loved that u showed the connections very clearly so we can remake it with ourselves i owe u alot man thank u again

[@aleksandarjakimov6830]

At 6:20 pop up message state that voltage divider output should always be under 5V. At 6:55 schematic shows that 8k ohm resistor is to the ground and 1k ohm to the output from boost converter. You took output of voltage divider and set it to A1. With voltage divider formula 8k/(8k+1k)*output, you will be way above 5v. Example: if we want 20v at boost converter output, output of voltage divider will be 8k/(8k+1k)*20v, and that will be 17.78v. You just need to flip resistors, 8k to output of boost converter and 1k to ground.

[@ELECTRONOOBS]

I think the schematic has a small mistake. It should be reversed, 1k/1k+8k so a divider of 1/9

[@aleksandarjakimov6830]

@@ELECTRONOOBS yes, just need to flip resistors. Thank you for your videos, you do awesome job. I'm really glad that there is someone who explain things awesomely, so that everyone understand.

[@AvantikaDevi-n4m]

Hi can u please tell the number of turns in the toroidal core? I need that formula asap for my project...please reply asap😢

[@TimPerfetto]

How does this video not have 1million views? Thank you for all your videos

[@youcan4913]

Great explaination. In schmetic diagram of close control please interchange the 8k and 1k resistance otherwise the output reference which is feedback to Arduino will be greater than 5v.

[@hamadyt956]

That value depend upon input and output you have to calculate our

[@holy2090]

@@hamadyt956 the measured voltage should be at the side of 1k resistnace, but the schematic diagram show that the voltage is measured at the side of 8k resistance... So measured voltage can be easily larger than 5V...

[@eddymich3192]

Great video. I watched it twice cause I couldn't pay attention the first time with that banana on the table. It had me thinking about eating.

[@jj74qformerlyjailbreak3]

Great Info Mate. I Love Your Work And Explanations. I Like To Think 🤔 Of Your Vids As “Virtual” Hands On.

[@jeevanshrestha8888]

3:56 The symbol of mosfet is p-channel not n channel mosfet....the video is great man...keep it up

[@davebutler3905]

Very good explanation!

[@trevorjaxngwabe7442]

well explained, i cant get any better then this

[@IncroyablesExperiences]

Nice job! I Made the same last year for a company with a boost and a buck to charge and discharge a supercap (cc and cv regulations). It's really interesting, I thought you would implement a full PID regulation feedback ^^ Great videos and explanations as always.

[@ELECTRONOOBS]

Thank m you very much!

[@Richie_]

Great video.

[@babursapayev188]

You are best bro

[@Hardworkwins369]

Legends says that the Banana is still there

[@salmanbinsalam5531]

your video is so understanding!!! thanks

[@KashifJavedForex]

If we have 12V and 1Amp(fixed maximum) and we boost it to 48V then what maximum Amps we will get from 48 volts?

[@Dc_tech386]

The only component that semiconductors company don’t design is a feedback ic the do all the calculations for any feedback voltage for any own ic that’s one component I don’t think will even design to stabilize any voltage

[@manuelr7121]

wow you awsome ... dude udk what itis but for some reason i dont like the great scotts videos .....but i like yours i can actually sit down and watch them maybe its the accent or the way you explain .... awsome

[@arzz11]

Oh my Fing god!!!! You are video is awesome....... Thankyou..

[@technivo_]

Hi... How can I design a closed-loop controller like PID or PI on the DC-DC boost Converter by Arduino??

[@fallen546]

If I put my microcontroller in deep sleep and the load drops to a very low level, will the boost converter still eat through the battery?

[@aminaz3656]

👍

[@danushvenkatesh4868]

What is the best advised load for this converter … please give a brief about it if possible

[@gurdyalsingh1857]

Hello sir, i m biggest fan of your's. Plz make a RCA to vga converter for me as soon as possible sir. Plz

[@energygraal]

hi bro... the Arduino BOOST 555 timer schematic that you referred already haves the feedback to stabilize voltage at the output? king regards

[@MahinasS-vl6cu]

Help us to bulid the project with different concept will you?

[@owyex]

how to increase the amps by the way i am trying to run laptop

[@bitsurfer0101]

How do we determine the maximum voltage that we could attain from the boost converter?

[@maotradok3790]

Hmmm i tried to do the same but different component value without transistor .. The only thing i dont understand is the pwm signal .. How to setting it ?

[@sathvikgatti7038]

i currently don't have a mosfet, will a 2N2222A work fine

[@phasehalide]

That 2K resistor from the gate to Positive input before the inductor has me baffled a bit because it seems to be puling the gate of the mosfet high which will turn the mosfet on as soon as power is applied to the input essentially making the mosfet short out the possitive and negative rail constantly unless the arduino interupts it. so if the arduino is not running for some reason the whole thing ends up in smoke. Reason i am asking this is because i am building this circuit right now and have nearly completed it but i don't want to apply power to my PCB before i have this query answered please.

[@garinanggara8358]

Can we use 100% duty cycle in boost converter?

[@sumit_kashyap..]

What is Maximum current we can draw from it?

[@NoNicNoName]

годный канал , буду учить инглиш)

[@sumit_kashyap..]

Алексей Ф translate into english ..

[@NoNicNoName]

точно! я забыл о субтитрах ! спасибо дружище!)))

[@sumit_kashyap..]

What?🙄🙄🙄

[@SamirAmmarcha]

Awesome

[@lutfuemreefe1428]

hello. We want to watch sepic converter with feedback tutorial :)

[@werner7156]

I built the circuit without a driver transistor and controlled the FET directly ( IRF1404), the circuit did not work at all at first, I had to slowly turn up the potentiometer on A0 so that the capacitor gets charged stepwaise , otherwise the gate of the FET was switched ON way too long and drew 7 A constant without really working . The control behavior only worked as long as the capacitor was not suddenly discharged, the problem is the gate time, 01.254 is set in the program, that was way too high for my circuit, only when I had reduced to 01.220 did the circuit start immediately even if the capacitor suddenly started was discharged with a short before. I am currently building a device with which I can spark weld nickel and steel wire (for vaping) and I need up to 120V depending on the diameter of the wire. But I also want to intrude different functions, so I reach for the Ardurino. With the PWM I only realize the precharging of the capacitors, but I also want to determine which power is charged and after which time the circuit on the capacitor to the welding contacts is interrupted. With the new PWM setting, I now fully charge 3 parallel capacitors 200V 470uf in 2 sek. I also donated a Z diode with 4.7 volts to A1 for Protaction. It is still a lot of work to do because I am just a hobby electronics technician and the last time that i programmed I using Power Basic (about 25 years ago ) :-))............

[@petechnology2775]

Hello, can you send me the same circuit diagram or link of working model

[@mahekshah9337]

What is max output current we get

[@EforEngineering]

Buck boost converter ic?

[@browaruspierogus2182]

What is COMP pin?

[@D4no00]

Can you tell what is the limit of how much voltage you can boost? I want to build a very small circuit that will boost from 3v to about 160v, the current is very small(about 5mA). I was wondering if it is possible to build it using some small smd components.

[@ELECTRONOOBS]

For that high boosting I think is better to use a transformer based booster. Search flyback booster

[@fikrimuhammad5511]

Beware..!! Rick and Morty may be sneaking up from the wall behind you, looking for some inspiration for season 4..

[@ELECTRONOOBS]

Fikri Muhammad i hope so...

[@carlosagorreta5276]

Shouldn't the voltage divider be 1k/(1+8) ?

[@stefano.a]

Yes 1k/(1k+8k)

[@f.a3202]

Hi from a new sub!!☺ Can you make a boost converter with attiny85 plz!!

[@lefteristhebuilder6159]

You actually can. You have two choices: a) follow Greatscott's video about that b) Port the existing Arduino code for use with an attiny 85.

[@gourangadas8672]

i want closeloop buck boost converter circuit....if u use matlab please send me the slx file.....if u done this....thank u...i support your channel.......

[@mr.amp0076]

Awesome.. You love banana.... Right?

[@ELECTRONOOBS]

A lot!

[@khanra17]

Worst possible design

[@elChico-TV]

What about making video where you can "hack" one of this buck boost converter to be controlled by arduino using their feedback pin i tried once i think it was 1.25v if voltage is higher output voltage goes lower and if its lower the output voltage goes lower too.. and does this will affect to output noise / ripple ? Thanks

[@ELECTRONOOBS]

hmm, I'll make some research on that!

[@FuchsHorst]

Electronoobs yes, please do it.

[@a1nelson]

Are you perhaps referring to the use of a linear regulator, such as the LM317? There are lots of 1.25V hacks with that part and ones similar to it. With a switching converter, the feedback works differently and doesn’t rely on a linear regulator for feedback. In fact, since the feedback/control is closed loop (as shown in the video), the linear wouldn’t be particularly useful, unless it’s being used as a low-cost, voltage reference. As a side note, although it’s not effective at reducing ripple as people seem to believe, it’s nevertheless common to use a linear regulator to _help_ filter the output of a switching converter. Of course, this requires the switching circuit’s feedback to compensate for the linear’s dropout as well, above the desired output voltage. Does that help, or am I not fully understanding your question?

[@SkjoyBd]

What is the efficiency of Arduino based boost converter & LM2677? Please reply.

[@siddhat7802]

Great video. How did you calculate the values for the inductor and capacitor? What factors did you take in consideration while calculating those values?

[@aliyasseen7471]

is that code works with arduino uno ??

[@hamzayaich96]

at 6:55 i think that résistors 1k and 8k should be flipped , they are placed wrongly i guess, arduino will see 44.4V at its pin in this case, considering the max output voltage to be 50V. Thank you for this great tutorial !!

[@ELECTRONOOBS]

HAMZA YAICH oh, true. My mistake while editing the schematic. I'll change that thank you!

[@arunnainar5415]

Hai Bro, I designed this project 12V to 48V boost converter. But as soon as i connect input 12V, battery gets drained and it shows 0V at input and 0V at output can u plz tell me what is the problem with this

[@gamerpaddy]

what does the final output voltage range depend on? bigger coil with more henries or higher frequency?

[@AbsoluteTrash_]

larger value inductor is the main variable that effects Vout

[@FreeCircuitLab]

Hi, sir! I am trying to make a boost converter for 4v to 12v using 555ic. I made the circuit and it works fine but I can't get current over 200mA, no Matter what I do, I have tried different inductors from CFL ballast, then made my own inductor 20turns 4x parallel wires in a cfl inductor core, then tried a switching transformer primary, then made a toroidal inductor but at the best case, 50ohm load can be connected while getting 12v but the efficiency became 50% at this situation, otherwise it remains around 80%. I did a long experiment of trial and error, tried different frequencies (upto70KHz), different dutycycle, nothing worked, the max wattage was 2.5W only. I didn't make feedback because I will drive constant load as LED and with constant input voltage too. Now my question is, is it possible to make this more powerful, I tried my all knowledge, now I need your brain... Can you help me? I also have a feedback plan for 555, just to use an optocoupler to pull its reset pin down while the desired voltage generates, the LED side of the coupler can be drived by a zener diode or TL431 for voltage setting

[@abdulrehmanathar7378]

Hello brother can u give me the circuit diagram of 555timer ic boost converter??

[@yaaminisaraswathi6711]

Hey!! You used LM2577 IC does that require any additional supply? and also does the circuit works for an input voltage of 1v and how can we get that IC? Please can u reply me

[@nafyadgetachew7322]

Eat the banana and change the battery of your multimeter, you gave me the idea, I was looking for,................... thanks 👍.

[@devilvortex1]

Maybe better using a optocoupler to the arduino for the feedback control.

[@jamest.5001]

I have a common problem, maybe you can help, how can you build a regulator for a car alternator, to output cc cv to charge a lithium battery??? It can be done, but the ONLY ppl manufacturing the external programmable regulator, is a marine electronics company, anything with BOAT, or marine, multiplied the cost, and they have a monopoly! It must be something similar to this boost converter, a micro controller, and current and voltage sensing, it should be almost simple! For someone who knows arduino, and similar microcontrollers, or even a pic, just a few MOSFETs to control the field by pwm, to adjust current and maybe frequency to adjust voltage, what's your opinion, its beyond my skills, I know what's needed, I just need to know how to make it happen!! And program the microcontroller! With a interface to set current and voltage, and set the voltage that shuts off the field! When the final voltage is reached, then after the battery voltage has dropped 4/10 a volt, slowly ramp up the duty cycle, until the set voltage is reached again .. Can you design a regulator like this?

[@MasterIvo]

Is there a boost IC for 24v to 110V dc?

[@justdoit-xp2gu]

Sir i tried to make boost converter with using 555 ic for square wave i get 30v output bt when i plug a 12v dc relay at output the voltage dropped at given voltage what should i do now.

[@funintheworld8599]

I am really enjoying your videos. I want to know what is the minimum voltage that can be applied to this. Can we connect a 3.7v Li-ion battery as input to it?

[@ksteknik3522]

Is this use 31kHz? How to change the frequency more than 31kHz. Thanks

[@Dc_tech386]

I get to know that only programable ic can give a stable output voltage of any dc switching dc to dc that why solar mppt circuit use digital ic to program it and no comparator or op amp can maintain the voltage

[@SaliyaRuchiranga]

can you make a tutorial about arduino sine wave inverter ?

[@hamadyt956]

He make it now check

[@lakshaysingh2967]

How can u make an boost converter with 24 v input to 1000voutput

[@davidemmanuel8600]

Excellent Project. THANK You!

[@hariprasadgowdakerenadka8450]

What happens to output if we give 100% duty cycle

[@alikhan-rb8qy]

Could you please tell how did you calculate inductor and capacitor values?

[@sumit_kashyap..]

Well explained ... I am bit late to watch it.. busy with pump

[@pramod_Kumar..]

Busy with pump or great Scott..

[@ELECTRONOOBS]

3D printed pump?

[@sumit_kashyap..]

Yes 3D printed pump by great Scott..

[@hamzayaich96]

hhh great detection

[@harshsrivastav5199]

better tutorial Than any other youtuber....Thanku @Electronoobs

[@ELECTRONOOBS]

Harsh Srivastav thank you so much!

[@urgirlcassie23]

Would this 600V Schottky diode (1N5406) work? I want to build a high voltage boost converter controlled by Arduino (the goal is to be able to throttle the voltage of an extremely high voltage Cockcroft-Walton from 5-100% without any knob-turning - no potentiometers, no variacs, etc; software only, controlled by an RC transmitter or other wireless signal). Are there any issues you foresee in building this modified boost converter circuit? Obviously, I need a larger voltage divider. How will I need to change the inductor, cap, etc. Maybe I need to use an optocoupler or something to protect the Arduino? Any tip/advice is appreciated.

[@rolandberendonck3900]

Nice Idea to use An RC control to be safe when you want to change the voltage 👍 Great Idea! Obviously you need a flyback without a diode charging your multiplier and not Just An inductor.

[@John_Smile]

Could you build a Boost Converter with current adjustment, not just voltage ajust? Also, I would like an output current greater than 1 A. Maybe 3-5 A would be OK.

[@jacktheamigo7462]

Hi Electronoobs ! I'm one of your Subscribers from Singapore. Can you make "make a phone call" project using GSM Sim900 Shield / GSM Sim800L ?

[@electronic7979]

Excellent

[@rctechmods8165]

Can you make a powerbank (stupid question) But this time Arduino as a controller So we can use a oled to see how much power is left,how much we used, charging stetus and which port we are using on what ampere (1A , 2.1A) And Arduino will control the MOSFETs of booost converters And a small button for torch light like other display powerbank modules This will be a great project

[@PhD_Yamete_Kudesai_Khalala]

hello my friend , i made the circuit and it works , but i am having huge issues with the mosfet , the température is rising verry quickly and destroys the mosfet after quickly , from whére the problem commes ? and how to limit it ?( without using a heat sink ) , i am using IRF740 mosfet

[@eddiemolina657]

What the voltage value of your input capacitors. Plz have a detailed values on your capacitors. Thanks😁

[@omnis8240]

I really like your style Thank you

[@hariprasadgowdakerenadka8450]

What is the maximum output voltage

[@seckinseckin3919]

One question . I put one coil between wires and increased frequency with frequency generator.. when i adjust higher frequency in multimeter i saw voltage becomes lower so that means it is inductive reactance decreases this voltage. In boost converters when you increase the frequency then voltage also increases because diode and capacitor prevents this reverse polarity phenomena (inductive reactance).. so switchin coil without any components makes voltage drops but switchin coil with diode and capacitor you can keep voltage higher.. am i right ?

[@m.scofield8473]

I did 555 circuit, but the mosfet was very hot. this is why ??? ( f=1,5kHz ). thanks

[@shreyaskumar5366]

Sir why the circuit diagram you showed in the video is different from that which you provided us with the link?? I mean the components are different Please tell me which is the good one , i mean by which diagram should i make the boost converter Please reply.....

[@Flyonwaterslow]

You're the best man! Thanks for this....finally i understand how is work the boost convertor

[@christianacar2745]

Hi Ive done this tutorial., I got one problem., When I put resistor to the output, the voltage goes all the way to 2V thats the reason why I cant build the feedback which consists of voltage divider.. pls help

[@RmFrZQ]

How small is the voltage requirement for a boost converter IC could be? How to find such IC in a sea of component manufacturers and part-numbers?

[@chereba7309]

Wow great work. Thanks

[@maotradok3790]

can anyone help me with the calculation ? i tried the same project but i cant get the voltage to be controlled, only PWM signal i can control .. but it didnt change the amplitude of voltage output

[@donaldhenke2750]

i thougt you was older.

[@susmashrestha2472]

Can you please make video how did you get those values when you used LM2577

[@ankitmallick843]

Pls make one using sg3524 instead of arduino...ie using an actual pi controller

[@GRBtutorials]

I noticed that the potentiometer in your power supply works in reverse: clockwise it decreases the voltage and viceversa. Do you know that you can switch the GND and VCC pins on your potentiometer and get it reversed?

[@herrbanane]

Does not step up for me with Arduino. With 555 Timer it works. Is 22uH enough?

[@electronresonator8882]

thank you, I've been looking for this detail explanation of boost converter

[@DavidLeeMenefee]

It's a P-Channel MOSFET but it is labeled N-Channel. Just saying thumbs up...PEACE

[@duncanscott3006]

Great video, really explained a lot compared to some of the other videos on this subject. Thanks man.

[@trevorjaxngwabe7442]

thought i was the only one

[@lucgauthier3201]

it is possible to add few mosfet or igbt in series with the lm2577 to be able to have higher curent ?

[@the_unknown8755]

This video is GOLD!!!.

[@pranaliwaghmare5585]

i want to know to give pulse to this adjustable mosfet can you explain????