Short circuit overload protection for Battery / Power supply

In this video, I will show you how to make simple short circuit protection & overloading protection circuit that must be used in the power supply or battery to protect them if short circuit or overloading happened, This is simple electronic project that has also adjustable cutoff current limit setting upto 10A.
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Required Components For This 3.7 volt battery charger circuit.
1. 12v 10A SPDT Relay
2. Green & Red LED
3. 1 Kilo Ohms Resistors (1/4w)
4. 100K multi-turn potentiometer
5. BC547 / BC548 Transistors
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Circuit Diagram & PCB layout, Gerber Files Download link
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(Creative Techos)
#shortcircuit #12volt #powersupply #Electronics #Circuit #Projects

[@kalutecpowersolutions9523]

Nice work man

[@krishnamreddy7879]

Nice video, Make the video for AC current short circuit and overload protection.

[@gabrielconstantine7384]

Put together in an hour from junk box parts..works good. Thanks.

[@CreativeTechos]

Glad to hear that, Thanks for watching my friend 🙂

[@Anolaana]

Good video, cool examples, nice soldering!

[@Anibal_avila74]

the current max limit is based on rele and trimpot specs? and the minimum is set by the trimpot only? overall ...my question is how mutch this circuit can handle? thanks

[@leroyolson4349]

Excellent Great Circuit

[@Sanju220-t2k]

Intelligent and smart 👌

[@CreativeTechos]

Thanks for watching my friend

[@khushishah9368]

Useful project as always 😊

[@CreativeTechos]

Thanks for watching my friend 🙂

[@Sanju220-t2k]

Thanks you're support

[@snipe4444]

It is very useful Thank you sir 🥰🥰

[@CreativeTechos]

My pleasure, Thanks for watching 🙂

[@shilapatel2605]

Very nice video

[@luongvuthach9312]

I have connected the push-to-stop button to the BC547's B and E pins and it works great.

[@CreativeTechos]

Glad to hear that, if you have any power NPN Transistor, it will be better than bc547, But take note of pin configuration as different transistors have different pin configurations.

[@dellodel9502]

Good job

[@CreativeTechos]

Thanks for watching my friend 🙂

[@ijomahemmanuel8537]

Can this be use as a protective device for inverters?

[@CreativeTechos]

Nope, inverters cross 10A and consumes higher current, you can use shunt system with oscillator ic, to shutdown inverter if overloaded

[@CorneredCat0]

And how to create that

[@luongvuthach9312]

I've done the circuit you instructed, it's quite responsive. I like so much. Thank you. But I want to install an off button, how do I install it? Can you guide me further? Thank you very much.

[@CreativeTechos]

Thanks for your interest in this project, Let me know where you're going to use it?

[@luongvuthach9312]

@@CreativeTechos I used it for the battery charger circuit that I assembled myself

[@luongvuthach9312]

@@CreativeTechos But I forgot the output of the battery charger is 15V > 12V

[@luongvuthach9312]

@@CreativeTechos So I can only use the 220V-12V "honeycomb" source to run the 775 motor, can you? Thank you for replying to me.

[@luongvuthach9312]

I intend to use a push button in parallel with the coil of the relay to turn off the machine, will it damage the BC547 transistor? How much resistance should be connected in series with the push button so that the relay stops working without damaging the BC547?

[@siriusleto3758]

Great

[@CreativeTechos]

Thanks for watching my friend 🙂

[@andrimastirta4736]

Very Nice video👍😄 I want to ask : 1. Can i use another npn transistor instead BC547 2.how many maximal volt and Amp input? 3. Can i use 24V and more for input? If yes what's component must be changed I am sorry if i have many question 🙏. Thank you so much

[@CreativeTechos]

It is better use power transistor instead of bc547, but take note of pin configuration as different transistors have different configurations. About voltage and current, it actually depends on Relay & transistor specifications, if you want 24v input, use 24v relay and use 2.2k resistor instead of 1k.

[@andrimastirta4736]

@@CreativeTechos thank you for your explanation 🙂🙏, you always give me satisfie answers 😀👍

[@CreativeTechos]

Thanks for watching my friend 🙂

[@bertspeggly4428]

A 2N3904 would work I think. Connections are opposite to BC547.

[@HYTMUAE]

Good Video ... this is for 12V source ... i have a variable power supply? (1-30V)/10A ... what can I do?

[@editz1679]

I also have a variable power supply, you can do the exact same circuit as shown in the video, use a relay that supports 30 volts / 10 amps or more. Since it is a variable power supply the only downside to this circuit is the leds will lower their brightness when you use a low voltage on your power supply

[@bijukurian764]

GOOD SIR

[@bijukurian5074]

Good

[@KAJO360]

Top 🌟

[@imth3onelsi]

hi does it support 24v dc in? plz answer me

[@ramanarao32]

not able to download from google drve...ca we replace relay with mosfet with low rds on..so that it trips faster...nice idea.

[@CreativeTechos]

Yes , you can replace with mosfet and use heatsink as it may dissipate heat on load, about circuit diagram, I'll upload in a hour and same link will work to download

[@bertspeggly4428]

Neat circuit. Forgive me for laughing when you say "blub" instead of "bulb" 😁😁😁

[@Sanju220-t2k]

Safty over tv or lcd ,Transformer 12012 2Amp voltage protection without fuse on 220v Circuit diagram please 🙏 4:47

[@andriesrudolph4741]

What type of adjustable resistor how many ohms

[@CreativeTechos]

The adjustable resistor/ potentiometer should be used multi-turn , Also instead of bc547 use NPN Power Transistor

[@rahulbojanapally7382]

Sir can i use 9 volts battery

[@math-electric2049]

Wowwww❤

[@CreativeTechos]

Thanks for watching my friend 🙂

[@silvaantonioantonio8002]

Tem o esquema de montagem ??

[@CreativeTechos]

You can find circuit Diagram in video as well as link in description

[@tuyentuenguyen9909]

How is a circuit that uses fewer components and does not require adjustment different from this circuit? What is the use range of this circuit? Which one is better?

[@aleksiujak4401]

Apa sirkuit ini bisa isi 12v100ah

[@CreativeTechos]

Didn't got you, please reply what actually you want to say

[@aleksiujak4401]

@@CreativeTechos apa bisa untuk mengisi aki 12v100a

[@aleksiujak4401]

@@CreativeTechos apakah saya bisa mengisi aki mobil 12v100a dengan sirkuit ini pak, tolong dibalas

[@mrpushpendersingh3996]

Sir 350watt ka sarikit bana kr batao sir

[@zahidulislam1836]

Very useful circuit Thank you. But sir it is "BULB" not "BLUB".....

[@David_11111]

yay like this :)

[@CreativeTechos]

Thanks for watching my friend 🙂

[@jaivarma2192]

Ac 220 volt warking no yes please reply

[@b170]

Please how can I have the circuit diagram

[@khakirukaya4574]

👍👍👍

[@CreativeTechos]

Thanks for watching my friend 🙂

[@HAIDERALI-yo2vb]

12v supply more than over voltage 15 than cut off power supply

[@Tetengi]

Please let's ear your explanation of these projects

[@Tetengi]

In English sir

[@CreativeTechos]

Thanks for suggestion my friend, I still have demonstrated working in voice.

[@MuhammadDarellRaindityo]

i tried connecting this to my voltage regulator using lm2595 12v to 5v and both lamp is turning on

[@HD5_Rider]

Step down module connect 12v to 5v so you have to use 3v relay so min voltage in short circuit protection 4.8v

[@HD5_Rider]

And 33ohm resistance

[@rabinroy3225]

24 DC power supply short circuit breaker protection video

[@diydudeindia8264]

No circuit diagram in your drive

[@CreativeTechos]

I'll update in an hour, check back later.

[@diydudeindia8264]

@@CreativeTechos okay

[@CreativeTechos]

Already uploaded, you may please check

[@diydudeindia8264]

@@CreativeTechos thanks for sharing 🤗

[@CreativeTechos]

Thanks for watching my friend 🙂