Automatic Fan Control Temperature Sensor Circuit

In this video, you can see how to make a temperature sensor and automatic fan control.
The operation of this circuit is that when the temperature rises, the resistance of the NTC thermistor decreases and the fan starts working;
When the temperature drops, the NTC resistance increases and the fan turns off.
Also, this circuit has a sensitivity adjustment potentiometer that can be used to set the desired temperature for the fan to turn on.
Components of the fan control temperature sensor circuit:
1- IRFZ44N MOSFET
2- 10 kilo ohms NTC thermistor
3- 10 kilo ohm potentiometer
4- 12 volt fan
Don't forget to like and comment!
I look forward to your comments and suggestions.

[@mrelectromaniac6886]

Nice 👍

[@Skill_DIY]

Thank you for your comment !🌺
Welcome to "skill diy" , I hope you enjoy watching the videos.

[@vikranttiwari7978]

Hello bro ye work nahi kar raha hai please help me

[@Skill_DIY]

Hello, dear friend, make sure you have closed the connections correctly and if there is still a problem, a part may be burnt

[@vikranttiwari7978]

Thanks bro ban gya mera Potentiometer dusra tha isilye

[@donalkwekkwek8734]

For 50 degrees centigrade what is the value of the resistor if the potentiometer is replaced...

[@Skill_DIY]

Unfortunately, I don't have the ready circuit now.
You can set the potentiometer for 50 degrees, then disconnect it and measure its value, then replace it with a resistor of about the same value.

[@sayidsayid8488]

I'm not understood, You connect a positive line in side pin, and negative line in middle pin on potentiometer. How it control the voltage.

[@Skill_DIY]

The way the potentiometer works is that if you connect the middle pin to one place and the side pin to another place and turn the volume, you can change the resistance.
And that I only connected the negative line to the middle pin and the side pin of the potentiometer is connected to the MOSFET

[@ottonormalverbrauch3794]

You should add a hysteresis feedback to the schematic to make it less nervous.

[@Skill_DIY]

Please explain a little more and tell why hysteresis feedback should be added? 🤏❤️🌺

[@ottonormalverbrauch3794]

@Skill_DIY Hi, it would switch on the fan at a certain temperature and switch it off as soon as the temperature drops a certain amount of degrees ( also adjustable if needed). This will ensure a more 'relaxed' regime of switching on and off instead of responding to any tiny difference in temperature.

[@depressed_neutron]

​@@ottonormalverbrauch3794 hi is there any circuit which like you know combines this idea along with a condition to be satisfied I'm guessing simple logic gates with transistors can help

[@ottonormalverbrauch3794]

@dundermiflinaerospace7557 Hello, if you use an opamp with the temp sensor in a resistor grid on the non inverting input resulting in a higher voltage with higer temperatures and a variable voltage with a divider of a resistor to + and potentiometer P1 to - on the inverting input you can switch a transistor on and off with the output of the opamp. If you now feed the opamp output via a variable resistor P2 to the non inverting input you can use P1 to adjust the temp where the fan gets switched on and P2 to create a temperature drop before it will switch off again.
Experiment with resistor values to get the desired effect.

[@ankitelectronic9408]

Fail circuit Potentiometer burn and circuit not working

[@Skill_DIY]

Hello, dear friend, welcome to the channel !
No, I have built this circuit and tested it for a relatively long time
Are you sure you used the mentioned parts and schematic in the video?

[@ankitelectronic9408]

@@Skill_DIY yes

[@somnathhaldar9696]

Fake video

[@Skill_DIY]

Hello, dear friend, thank you for your opinion, but please make the circuit and test it, it will work for sure.