How to Make 12V Regulator Using LM7812 IC | Simple Ideas | Javier's DIY

[@efrainvelandia3785]

El trasformador permanece conectado o solo para cargar los capacitores.

[@JaviersDIY]

For better understanding please use the universal language

[@josegante6982]

como vas a desconectar la fuente de alimentacion??? que clase de pregunta es esa... un capacitor no es una bateria... si lo desconectas obviamente no va a haber ningun voltage despues de unos segundos...

[@pavil58yt]

Were you able to get 1 amp through it without overheating at that input voltage and with that small heatsink?

[@JaviersDIY]

No sir. If current exist, heat exist also because heat is the output of the circuit.

[@WTutor16]

Posso usar 1000uf 16v?

[@adrianvictor2086]

Hi. In the manufacturer's datasheet, the values ​​of the capacitors are 0.33 uF and 0.1 uF (non-electrolytic). You use two 1000uF both electrolytic capacitors. Are you sure it is allowed, or even better? Ty

[@JaviersDIY]

Yes it is allowed since it is just a small circuit

[@GuzSurya]

good video. but what if I use the LM7809 ? how much value of the elco that I should use? sorry, my english is bad

[@JaviersDIY]

The purpose of LM7809 is to stepdown any voltages around 35V to 9V positive supply.

[@joeybiscocho3796]

Good day sir, can i use this in my 24volts jeep using 12 volts Led tail lights (signal light, break light and back-up light)

[@kennmossman8701]

check tha Max voltage iin the datasheet. Include the charging voltage (maybe 28V

[@mrghost8145]

Can we use it for 12 volt amplifier (PA Siren set) in vehicle..?

[@JaviersDIY]

No sir because the output current of this projects is not enough to power the amplifier.

[@mrghost8145]

@@JaviersDIY then any other option..? Please help me

[@JaviersDIY]

@@mrghost8145 you need to have a 12V Powersupply with a high output current like 5A up.

[@chalokips7712]

Is that 12v dc strong enough to work well with 12v 60watts LED television please tell me

[@JaviersDIY]

No sir because it only give a maximum output current of 1.5 amps

[@kennmossman8701]

@@JaviersDIY ano ba

[@SomnathDas-ej3ve]

Can I give 36volt to the 25v input capacitor and will it be safe for capacitor and the ic

[@JaviersDIY]

Tha capacitor will explode sir it is because you exceed the maximum input voltage.

[@JaviersDIY]

It's better to change the capacitor to the higher one

[@daitedve1984]

Javier, important question: what if my input voltage jumps a lot? Say, from 8 to 14 volts (imagine it's car bus). Will it help to put BIG capacity before LM or I need smth else? What will happen if I put big capacity *after* LM?

[@kennmossman8701]

READ THE DATASHEET a large cap the IC can destroy it! use a boost-buck converter

[@clamman7505]

what if it is a 12v battery that can get charged up to around 15v and want to use led strips on 11v dimmed@@kennmossman8701

[@ROVITTv]

Good job boss

[@teguhraharjo5207]

Apakah pakai elco yang uf dan voltasenya lebih tinggi dari yg dituturial bisa..... 🙏🏻

[@JaviersDIY]

For better understanding please use the universal language

[@CreativeWorldPro]

nice project

[@JaviersDIY]

Thank you sir. Let's support each other.

[@ShareTechCreative]

Nice work

[@JaviersDIY]

Thank you sir.

[@jaypormei1881]

Can I use 2200µF 50V and 1000µF 16V? I have only over 35V power source and I need to regulate with 12V output. I don't think the output is doable since you used 1500µF 16V caps.

[@JaviersDIY]

Yes sir you can

[@jaypormei1881]

@@JaviersDIY Alright thanks!

[@vinayagamvinay4879]

Did it work ​@@jaypormei1881

[@soleespena6622]

How many amps would be the output of it sir?

[@JaviersDIY]

Only 1.5A sir

[@lukewidmer6076]

Is there any way this could be adjusted to put out around 13.5v? I am trying to charge a 12v battery with it.

[@JaviersDIY]

You need to have an adjustable voltage regulator sir

[@kavinsp]

7812 will only output upto 12v

[@kennmossman8701]

YES! put diodes in series between the IC ground pin and the actual Ground. READ THE DATASHEET!!!!!!!!!!!!!!!!!!!!!

[@arahyabayat1288]

There's a battery charging and protection module made for just that

[@a21creation57]

Will the transistor burn without capacitor

[@JaviersDIY]

No sir but it is important to have a capacitor

[@cesarjorgemurillobarientos1813]

very good

[@JaviersDIY]

Thank you

[@saiyanumar]

uf capacitor is necessary? Can we get 12 voltage without uf capacitor?

[@JaviersDIY]

Yes you can get but it is necessary to put a capacitor

[@saiyanumar]

@@JaviersDIY Ok thanks❤

[@JaviersDIY]

Your welcome sir. Come back again sir

[@ajsanginez2985]

Can I use a 12volts input in this?

[@JaviersDIY]

No sir. The input should be higher than the output voltage

[@jovinomediomundo2038]

Porque en este circuito se calienta el lm7812, como evitó ese recalentamiento

[@JaviersDIY]

For better understanding please use the universal language

[@memasabilang6575]

bossing... pwede b yan supplyan ng 24V tulad ng mga battery supply s mga trucks (howo, giga, super great)? d ko alam kung ilang amperes ung supply n mangagaling s battery, pero malamang mataas un. lagyan ko kasi sana ang truck kong dina-drive ng 12V n LED (kadalasang gamit s motorsiklo) ksi maraming pagpipilian at mas mura.

[@kennmossman8701]

English naman!

[@aadamhussain9619]

is it 2A or 1A coming out

[@JaviersDIY]

It's only 1.5 Ampere sir

[@aadamhussain9619]

@@JaviersDIY thank you but is there any way that i can increase the amp

[@aadamhussain9619]

@@JaviersDIY question I'm using a 7812 transistor to reduce a 20v drill battery to run a 12v speaker box. That part went well but when i turn up the speaker bass the box shuts off. (someone told me that there isn't enough ampere but im not sure) it there any way u can advice me what to do thank you

[@inside.rama_adis]

what is the function of both capacitors for LM Ic ?

[@JaviersDIY]

To make the voltage smooth especially in the output.

[@inside.rama_adis]

@@JaviersDIY thanks a lot🙏

[@quadroedm359]

that is the electrolytic capacitor or non-electrolytic capacitor ??? i can not see it clearly ? pls tell me ?

[@JaviersDIY]

Electrolytic capacitor sir

[@quadroedm359]

@@JaviersDIY It means there are 2 pole, that is positive pole (+) and negative pole ( - ), Right ?

[@ssuryaprakash2920]

Sir why u use the 25 v capacitor input side and 16 v at output side

[@JaviersDIY]

Because this is a voltage regulator meaning to say the input voltage is much higher than the output voltage, that's why I put a higher capacity value of the input capacitor

[@ssuryaprakash2920]

Can I use different voltage capacitors

[@asifhasan2142]

Can I use 50v 2.2uF capacitor at both the input and output ends? Please note that I have a 12v battery with more Ampere. I want to take input for the l7812 ic from this 12v battery. Though the battery is already in 12v. But I want to get 12v output with a more assured voltage value of 12v and I want to get limited current flow.

[@JaviersDIY]

Yes sir it's okay to use that capacitor

[@asifhasan2142]

@@JaviersDIY Thank You Sir !

[@wernerpeter9706]

A capacitor of 0.22 uF is recommended at the input and 0.1 uF at the output. This is for stabilization and prevents the voltage regulator from oscillating. The huge electrolytic capacitors here are exaggerated and useless. The voltage regulator is pointless for your use, since it has a 2 V dropout, i.e. to get 12 volts at the output, at least 14 volts must be present at the input. In addition, a voltage regulator, as used here, is not a current limiter. If you want to learn more about the LM7812 (or any other voltage regulator), take a look at the datasheet.

[@JaviersDIY]

@@wernerpeter9706 it is a very well said sir. Thank you

[@Avenger2150]

Input capacitor should be 0.33 uF according to datasheet. @@wernerpeter9706

[@mixme8655]

Thanks

[@JaviersDIY]

Thank you sir.

[@sawfilm3655]

If i add 18 volt dc input then can i get 12 volt dc output?

[@JaviersDIY]

Yes sir.

[@WTutor16]

Can in user 1000uf 16v??

[@JaviersDIY]

yes sir

[@WTutor16]

@@JaviersDIY tranks 👍

[@mg.g8332]

Is this Dc output or ac

[@JaviersDIY]

DC sir

[@darkskatemanzano9148]

WHAT IS THE VALUE OF THE RESISTOR BRO? TNX...

[@JaviersDIY]

there is no resistor in the circuit sir

[@wahyupriadi8264]

Could you provide schematic for lm7812 with 2 tip3055 in paralel? I wanna know what capacitor and where're they located, current output should be upto 10A

[@tn7719]

Does the 7812 transistor stops working when it get over heated and starts working when it get cooled ...?

[@JaviersDIY]

No sir. Once it burns the IC it will not recover. It is very important to put a heatsink to absorb the heat.

[@tn7719]

@@JaviersDIY What is the max input voltage and ampere for 7812 Transistor sir ..?

[@JaviersDIY]

@@tn7719 5A below sir.

[@kavinsp]

@@tn7719 from data sheet i can recall the input being upto 35v and max current of 1.5A

[@freestylemangaming]

How to choose the desired capacitor according to the input and output voltages?

[@JaviersDIY]

Use capacitor that would fit to that output voltage that more than the value

[@netdedouga]

What difference does it make if you use capacitors and if you don't use them? Can you tell me what is the job for the capacitors in this project?

[@JaviersDIY]

A capacitor is a two terminal device that store energy in the form of electric field. When voltage is applied to the capacitor, it starts charging. When capacitor is connected to any device such as electric bulb, it starts discharging. So that's the job of the capacitor in my project.

[@netdedouga]

@@JaviersDIY Thanks. Some people in KZbin use L7812 to regulate e.g. 18v into 12v without capacitors and it seems working. What if you remove these capacitors, what trouble will it have?

[@JaviersDIY]

@@netdedouga there's no trouble if you will not put a capacitor

[@daitedve1984]

@@netdedouga I think capacitor is needed to smooth voltage jumps (on both, input and output). It's always good idea to put capacitor.

[@kennmossman8701]

@@daitedve1984 READ THE DATASHEET!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! This video is WRONG BTW

[@tmproductions97]

I'm trying to go from 36v to 12v to run a led light. I need to limit voltage down to 12 from. 36

[@JaviersDIY]

You can use that one sir.

[@kennmossman8701]

Good advice for destroying the IC @@JaviersDIY

[@asifhasan2142]

Sir, Can I use a 50v 2.2 uF capacitor at the input side and a 50v 0.1 uF capacitor at the output side?

[@JaviersDIY]

Yes sir

[@grizzlygamingGG]

Can you help me? I need to regulator 14.4 volts dv down to 12 volts dv at 200 amps. I am connecting solar battery bank to computer.

[@JaviersDIY]

Buy a module sir to compensate your needs.

[@patrickdjebar9225]

Great job with the old 7812 :-)

[@JaviersDIY]

Thank you

[@adnanshaikh5548]

Hii Sir I Want To Regulate 14v Dynamic Voltage into 7v Regulated Voltage What Should i Do?

[@JaviersDIY]

Try to use adjustable voltage regulator so that you will only adjust it to the voltage you like.

[@Tomas_Prucha]

Nice!

[@rosieone5670]

Well it’s not 12 volt output is it ?

[@JaviersDIY]

no, it a 12v regulator so the outout would be 12V

[@malinduomantha3467]

cant this circuit use for an input of 12-13v to get an output of 11.8-12v?

[@JaviersDIY]

Yes sir

[@vinayagamvinay4879]

But it's shows only 2.8 volt

[@karuna1059]

Maximum current output?

[@JaviersDIY]

1.5 Ampere sir.

[@ClaudioEsposito-rk1fv]

Q ocurre si Vin picos de 120v CC?

[@JaviersDIY]

For better understanding please use the universal language

[@anannyasriflex3728]

sir what is the value of the resistor you're using in the led light ?

[@JaviersDIY]

Sir there is no resistor their. I directly connect it.

[@dstpollo7410]

brown black red is 1K

[@anannyasriflex3728]

@@dstpollo7410 Thank You...

[@JaviersDIY]

I don't use a resistor sir

[@anannyasriflex3728]

@@JaviersDIY sir i asked about the value of the resistor used in that 1.5 volt red led @ Bridge rectifier + 4 filter capacitor near the transformer...we can clearly see the blue resistor @ 3:26

[@BASSREFLEX-p7j]

Can it pass 10 ampere current through it I want to use car audios system transformer with bridged rectifier gave 20volt output it will damage

[@JaviersDIY]

No sir. The maximum input current is only 1.5A

[@BASSREFLEX-p7j]

@@JaviersDIY what can I do to reduce the voltage to 12v 🤧

[@harishkumar-lo7ec]

48v adapter ko 12v me kese change krenge

[@JaviersDIY]

For better understanding please use the universal language

[@vinayagamvinay4879]

Hi, out put shows 2.8 volt why

[@JaviersDIY]

how many input voltage you put?

[@PavanPyati]

Can I add 3 ICs in parallel to get 3A current?

[@JaviersDIY]

Yes sir. You can

[@PavanPyati]

@@JaviersDIY thanks Sir, does it over heat?

[@JaviersDIY]

No sir. Just put a heatsink in all ICs

[@PavanPyati]

@@JaviersDIY thank you, will keep you updated!

[@JaviersDIY]

@@PavanPyati Thank you

[@rajvaghela8540]

LM7824 ka video place

[@sershetech5584]

👍👍👍

[@JaviersDIY]

Thank you sir

[@alexchong1979]

i would like to see 12v batter in and output 3 ~ 5 12v 1-1.5A draw stable low head diagram :D

[@kennmossman8701]

are you making cake..........batter

[@daitedve1984]

Javier, note: if you apply your "device" to power LED, you do it completely wrong. On LED you should supply voltage AT LEAST enough to feed all of 'em, even 200V!! But what you should limit/regulate is CURRENT! Current must be same as LED needs.

[@akhtersial3060]

i can used 7815 IC with capster ¿

[@kennmossman8701]

your assertion lacks context. For a LED strip CV is good

[@PauloGraciliano-ip5fd]

Costei

[@JaviersDIY]

for better understanding please use the universal language

[@prettybuttar2318]

Fail

[@studiotulip1556]

How to fix L7812 ic load time functionality inactivity while device connected on running mode ? Query1: ===== I used 12v*2 3000mA with 2 diodes 5408 and 2200uf/35v . Which other capacitor value need to use in the output section of L7812 ic ? Query2: ======= My 12v*2 3000mA transformer where i connected 2200uf and 2 diodes 5408 and out shows 16.68 v. Then i added L7812 and voltage shows 12v with heatsink . But while i charged a lead acid battery then ic gone over heat and this continuty i cheaked got result 16.68v . Then i stoped the charging and refresh . Again on the switch and voltage shows 12v . That neans heating the ic automatically ic is gone inactive . In this time if i used any device by this power supply due to over vault connected device will be damaged automatically. How can i keep my circuit safe while the output turn 16.68v to 12v while L7812 is inactive due to overheat ?

[@JaviersDIY]

I suggest put a bigger heat sink and put also an additional fan so that the temperature will normalize and I asure you that the IC will run in normal condition. Thank you

[@studiotulip1556]

@@JaviersDIY in the output section of L7812 which value of capacitor need to use that supports connected any 12v devices any "watt" value and never will be inactive ? ( L7812,2200uf,2 diodes 5408)

[@soleespena6622]

How many amps would be the output of it sir?

[@JaviersDIY]

1.5A sir

[@ADtechnicalGyan]

Nice work

[@JaviersDIY]

Thank you sir.

[@soleespena6622]

How many amps would be the output of it sir?

[@JaviersDIY]

1.5A sir