I can only get the circuit to interrupt when it shorts. I am trying to get it to interrupt around 5a. Any idea why I can't get the potentiometer to change the trip current?
You can use it, but BEFORE the voltage and current regulation circuitry. It's not made for a wide voltage range, as it uses voltage drop to detect an overcurrent condition. But be sure to use a "high power" resistor, 5W at least. The resistance will cause a voltage drop as current is flowing through, which shuts off the relay once the voltage drops too much. It may not stop the short instantly, but it will decrease the time to a few milliseconds. 5W is the maximum power dissipation of said resistor. This doesn't mean you're limited to just 5W loads, though.
Depends on relay. 12V relay will work, as from experience I've seen them trigger at 8V. And, the LEDs aren't required. It's not like high current flows through them...
you don't. protecting the negative wire is a lot safer than the positive one, because the current control can be monitored through the negative and not the positive terminal. all sorts of BMS and stuff like that follow this rule (if you don't believe me, circuit trace a BMS to see for yourself).
Depends on relay current, but it's better to draw 1/2 or 1/3 the maximum current (eg. 5A for a 15A relay). Higher currents will wear the contacts out faster. But I don't recommend such a simple circuit for currents above 2A. Sure, it works, but it is far from perfect.
I think this is a useless circuit u have to make strongly short circuit to cut the circuit. In industrial we use the current limit circuit for that. In this method the circuit can catch fire at the same time as an open circuit. It may work only for low current circuit.
Ok
کارت عالیه بود بخصوص جزئیاتش.
مرحبا .آ فرین
Interesting, but if you put a drawn diagram it was better.
Can I use it for 24v what things should I need to change. Sir Please reply me
is it possible to make something like this for AC supply?
Is there a 50k pot instead of a 100k pot, thanks
to do it with 5v and 3.3v relays what should I change?potentiometer?resistor on led?
I can only get the circuit to interrupt when it shorts. I am trying to get it to interrupt around 5a. Any idea why I can't get the potentiometer to change the trip current?
Can I use for variable powersupply? Or what i need to change
You can use it, but BEFORE the voltage and current regulation circuitry. It's not made for a wide voltage range, as it uses voltage drop to detect an overcurrent condition. But be sure to use a "high power" resistor, 5W at least. The resistance will cause a voltage drop as current is flowing through, which shuts off the relay once the voltage drops too much. It may not stop the short instantly, but it will decrease the time to a few milliseconds.
5W is the maximum power dissipation of said resistor. This doesn't mean you're limited to just 5W loads, though.
kalau di tambah buzer biar bunyi kasih tutorial nya om. dengan skema itu 🙏 trims smoga sukses slalu 🙏🙏
Bhai kya Mya B-100 k potential meter ko chodkar B-47 k potential meter use kar sakta hyu
How does it measure the current? There is no resistor in the line to develop a voltage.
Nice circuit
Very good
We need explanation how it will trip in overrload.
Good
Can i use it in 9v power supply???.
U can use all power supply u want.. U may only look the max voltage and current of relay and change resistor for for the right led voltage
Depends on relay. 12V relay will work, as from experience I've seen them trigger at 8V.
And, the LEDs aren't required. It's not like high current flows through them...
Mantaf
👍
Pls, how I control the positive wire instead of negative wire in this circuit.
Pls help
you don't. protecting the negative wire is a lot safer than the positive one, because the current control can be monitored through the negative and not the positive terminal. all sorts of BMS and stuff like that follow this rule (if you don't believe me, circuit trace a BMS to see for yourself).
What is the maximum current the circuit can handle.
Depends on relay current, but it's better to draw 1/2 or 1/3 the maximum current (eg. 5A for a 15A relay). Higher currents will wear the contacts out faster.
But I don't recommend such a simple circuit for currents above 2A. Sure, it works, but it is far from perfect.
What is the reason for placing the potentiometer?
By puttinv potentiometer and set resistant,risk of exploding high current because of short circuit is eliminated
Pot 'd be as current regulator.. but video not show how many current u may regulate...
Please make 24 volt 20 amp autocat
bro make bass controller circuit
Ok
Bro make fm reciver bro
I think this is a useless circuit u have to make strongly short circuit to cut the circuit. In industrial we use the current limit circuit for that. In this method the circuit can catch fire at the same time as an open circuit. It may work only for low current circuit.
شاهدت هذا الفيديو يتعذر التعليق .
wait what? but this is a comment. 😂
😂
Bc 547 getting hot like sun🤨😮💨 12v input from LA Battery
Not meant for high current batteries, like lead acid SLI batteries.