Simple short-circuit protection circuit | Save your battery/power-supply
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- Hello friends, today in this video I've shown how to make a simple short-circuit protection circuit using a relay. You can use this circuit 6v to 12v battery. But for 12V battery use a 12v relay. The load current depends on the relay's specification.
Components required:-
1 x relay ( Relay voltage as per your Battery )
2 x led
1 x 1K resistor
1 x push button switch
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When output to the motor was short-circuited, it actually shorting the battery power source to 0 volts, preventing the holding relay voltage to 0 volts, great circuit for up to 12 volts, not for any other voltages, unsafe practice, thanks.
The relay switches off AFTER and because the power supply has been overloaded already.Try this with a car starter battery, and it will burn your relay or the cables. Press the button while the output is shortened, it will destroy the button. Try this with an unprotected AC adapter, it will destroy the adapter. Try this with a protected AC adapter and ask yourself if you need this relay.
Is it safe to use relay as this way? Without a 1n4007 diode in relays coil terminal? In this circuit no reverse voltage is generated by the relay? Please replay me as soon as possible 🙏
For 230v users ,u can use mcb and any circit breakers ,they can protect from high and low voltages to ur appliances
Nice idea...but i need protection for boost convertor where voltage is grater than 12 v...how to achieve that
I built the circuit and it works! Thanks for the great video. Can you explain how the overcurrent causes the relay to switch and shut down the circuit?
When output will be short Positive volts goes to relay coil from another side, it will be shut off because of same polarity voltage goes for relay coil. Its only for 6v - 24v DC, its not recommended for high voltages.
@@afzalqureshi6741 Thanks for the reply
Thank you so much I tried this Circuit and it works perfectly I am definitely subscribed
Perfect one I would like to implement in our device even can u pls tell me which kind of witch and relay used
12 volt Relay mey maximum 13 se 14 volt Dc input de sakte hai kya..??
بتشتغل كدارة حماية بور سبلاي من عكس الاقطاب
Can this be done with a solid state circuit instead of a mechanical relay?
Please help me sir , can be used in 12v 40w battery?
10 amp support
Coul’d you please add schematic diagram. It would clarify these very much. Now it is much harder to follow and understand the function. It also teaches people how to read it.
Mattikaki, this circuit is not worth it to spend any amount of time on it. It is a funny and dangerous proposal for people that don't know anything about electricity. I have already posted an explanatory comment about that. If you are interested try to find it in the comments pile. Anyway I advise you don't lose your time with such potential life traps...
Will this work for a multi psu from 3.3v to 12v? Thanks!
@Raghul Prakash it will not work for lower voltages from 1V
to 8V supply if you are using a 12volt relay ,because in order to actuate a 12Volt relay you need a 9.6V supply.
Better use a p-channel mosfet, its more efficient and can handle much more current.
But can handle much lower voltage and cant switch ac
@@milanhlavacek6730 there's a lot of mosfet to choose from depending on your needs so just choose the correct one and you will not have any problems. And for AC circuit protections we use a dedicated circuit breakers.
Can i use 240v relay plz reply
Does it work on 12 volt Dc...
Bro I have question, u can connect battery with any voltage Or exactly 3.7v?
Muito bom , muito simples e funcional, seu canal é show de bola, mais eu não gosto de bola, só de eletrônica kkkkkk
i made the circuit, but when i shorted the o/p the relay didn't de-energize, infact the wires smoked & i had to disconnect the power, i think the circuit works with ps who already have s/c protection, i powered up using 3s 18650 w/o bms, also when i gave power through 12V 1A smps adapter the circuit worked as intended cause the smps was cutting the o/p & de-energizing the relay.
You should use current limiter such as potentio. Search for overcurrent protection.
I did this sircuito yesterday, only I used a second button to short and disable the system!
can this circuit connected to variable power supply module like xl6009 step up booster module as output side ?
Can the device circuit serve the purpose of automatic battery charger auto cut off
funciona bien con un transformador comun o bateria. pero con una fuente switching no... se activa primero la proteccion de la fuente y esta se apaga
Thank you for the video.
I integrated above with (Auto on when power off circuit) It has 2 input points One for adopter & other for battery. But when I connect adapter to any of points the short circuit protection works. But when I connect battery to any of points it doesn't work. My battery is 18650 3S lithium battery pack with BMS. Can you help ?
Is it because nominal voltage of battery is 3.7 * 3 = 11.1 which is less for 12v relay ?
my red led is not glowing if I connect the output +ve with output - ve...Please reply me..
Sir kya ise ac voltage ke liye use kar sakte hai
Can we connect this with our variable power supply
Show!
Circuito muito útil.
Obrigado!
Please read my comment above
@@ΠάριςΑζής troll. Try post the comment first.
@@andresouza2314 No troll ar all buddy! Just take a closer look in the comments and you will find it. I have no reason for trolling!
@@andresouza2314 What happened Andre? Did you find my comment? Do you still consider me a troll? Anyway, if you really want to know how this "protection" circuit works, try to find and read my explanatory answer I gave to Sthandive lebo, in the comments pile. Feel free to tell me if I am wrong as well...
What type are the relay used
Can I use 12v relay
How can I adapt it for a dual power supply ( +12 v/ 0 / -12v) ?
How to upgrade this circuit use for 30V 5A Variable Bench Power Supply
It working very good 👍🏻
i didn't know that
@Stefan Frings thank you
Can i this use for 50v 5A power supply ?
No diode for the coil?
Diode? This is a life trap...
Gabriel Madrid There’s no transistor so it doesn’t need protecting diode.
Input is DC &components LED ARE also DC so no diode is required
When output will be short Positive volts goes to relay coil from another side, it will be shut off because of same polarity voltage goes for relay coil. Its only for 6v - 24v DC, its not recommended for high voltages.
Very Useful circuit. Thanks for sharing. ;-)
230 volts me kuch ho sakta hai kya... ( any other way )
Where can we find the apparatus
Does it works on 24 v
bro I want to make this for 0v to 25v regulated power supply what should I do please help
Can use this in 12v output
Can somebody help me to understand what happens to coil when there is reverse voltage it opens again?
Thank for sharing
Can i use the osa-ss-212dm3 relay?
Can we use this circuit for 48 to 52v & 20 to 30Ah Battery?
Plzs tell
Nope, it will not work.
Very good
At what current does it triggers?
Nice vid bro but mine is not cutting off it is re starting
Edit: (now it worked it was switch problem thanks for information)
Love this song
If i use 5v input how big is the resistor i need
You are so smart,very good technology.keep go on.
Please read my comment above
Where I can get the relay
👏🏻👏🏻👏🏻👏🏻👏🏻
Voltage jada ho to usko protection ke liye stabilization please
Circuit diagram with explain?
But how to apply this ckt in a 12 volt powersupply?
can i use 5v relay
Great for not discharging the battery if the engine gets stuck or a short circuit occurs as this design is used!
Please read my comment above
@@ΠάριςΑζής Please read my comment below
@@prashanthb6521 just below, above Mr. Antonio Souzs's...I am NOT joking!
Πάρις Αζής where’s your comments in the dream dumbo !!
@@borun12 it is above Mr. Antonio Souza's one. Who is the dumbo?!...
Very helpful
If I use 12 V input, how big the resistor I need ?
Thank you for good experience
1k is ok
Good but the relay draws voltage continiously
Great video thanks
Thanks very very nice.
Very nice video bro
Ok j'ai tester ça marche nikel !
Sur du 3 à 4v, nikel.
Sur du 30v, ça à cramé car l’interrupteur à pas supportés...
Mais ça marche !
for 220 wolts??
ano gamit mong LED 3MM or 5MM?
excelente trabalho .muito bom
Muy bueno te felicito !!!
I use 470 rirstor is right or wrong
Ofcourse it'll work without any problem
Where to get these parts?
Good job!!
what is the wattage rating of 1K resistor
1/4 watt
Hello, can i input voltage 70vdc 6A ?
no, led will be burn ...
No no i mean without led
Resistor ki value kya hai
Excelente vídeo
Gracias
This circuit we can use it for Ac power supply??
Nop, it is for batería :(
This is a dangerous circuit. There is no current sensing device anywhere in it. If you implement it with a healthy 12V battery and a 12V coiled relay and try to "test" it, THERE WILL BE NOTHING LEFT OF IT. The whole circuit will melt down...
Nice ! 👏😊
220 volt se ek video banaye
very nice, but device too slow!!!
Dei um "não gostei" porque o circuito não considera um resistor de alta potência para dissipar o curto, ou caso seja bem calculado, pode até controlar sobrecarga. NÃO APLIQUEM ESSE CIRCUITO COMO PROTEÇÃO DE TOMADAS 110V OU 220V AC! E também não recomendo se estiver usando baterias de Lithiun.
Dc per transformer kam nahi karta ha
Bro this is not durable, I've used it in my dc supply and it's not working after after 6-7 short circuits
@Stefan Frings It does bro... when relay swithes to led, the connection to outer load is made open
Nice g
12v ആണെങ്കിൽ എന്ത് ചെയ്യണം
رائع 👍
Tentei não deu certo 🤔
12v dava jaave
ഇതുപോലെ പല പോട്ടമ്മ്മരും പല viedos ഇടും ഇതൊന്നും usfull അല്ല വെറുതെ പരീക്ഷിച്ചു സമയവും രൂപയും ശേമയും കളയരുത്
Yes
سرجی مجھے١٢v میں چاھےء
As always, no schematic = thumbs down.
But he explain this very good :)
@@picanazo420 Watching someone solder connections is pure nose-bleed. A schematic shows how it works, at a glance.
Schematic for what, to burn things from overcurrent?
@@y1hardtop please read my comment above if you want to understand what George George means with his comment...
@@GeorgeGeorge-xj2bc Correctly!
this will damage the relay after some use
No...If used with a healthy 12V car battery and a 12V coiled relay, THERE WILL BE NOTHING LEFT OF IT!!
Muito bom abençoado parabéns visite o meu canal
Like)))
diagram/schematic ps
why?
post the schematic
কেউ এই ভিডিও দেখে সার্কিট করে কাজ হয়েছে? আমার কাজ হচ্ছে না। সব কিছু ঠিকভাবে করার পরও!!
Yutubiga omat