By A Single Transistor You Can Make A 3.7V Automatic Battery Charger..3.7V Battery Charger
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- Опубліковано 29 жов 2022
- By A Single Transistor You Can Make A 3.7V Automatic Battery Charger..3.7V Battery Charger
Welcome to my channel "Tech help" here you will learn how electronics is work..Here you will also learn to make diy electronics circuits,handmade crafts,new inventions,mechanical,computer software..Here you will find lots of electronics projects and handmade circuits..
Friends in this video we will learn how to make 3.7v automatic battery charger circuit at home..3.7v battery charger circuit diagram..It is a simple process of making a 3.7v battery charger..
Dosto aje is video me hum sikhenge 3.7v automatic battery charger kaise banaye..Ye ake bahut hi asan tarika he ake 3.7v battery charger banane ka..
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#automaticbatterycharger #howtomakeautomaticbatterycharger #automaticbatterychargerkaisebanaye #batterycharger #automaticcharger
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The world's best teacher thanks so nice and economical
It's my pleasure..Thanks
nice video sir...
Thanks and welcome
सुस्वागतम् सर
Hi..
@@Techhelp11 नाइस व्हिडिओ सर
Very informative video sir. ❤️
Thanks a lot
Very easy and effective. Cheap to build too.
Yes, thanks
In this circuit, only led indication are changing but Battery charging would not stopped after full charge and can damage the battery due to overheat.
Good
Thanks
Please our best teacher make for us even 12volts charger
OK..
Very Good Sir
Many many thanks
Sir preset ko kese set karna he please reply
So supar amezig sir
Thanks..
Nice
Thanks
First of all, thank you for the instructional video.Can we use 10K potentiometer instead of 2K presets ? ( I have a 10K potentiometer and I'm asking to use it )
How to set preset ? ( Not shown in the video, so I want to know ) I would be very grateful if you could give an answer.
Thanks bro
Welcome
Please sir i need this circuit for 12v lithium battery 3s
Bom dia parabens muito bom excelente
Thanks..
HOW PRESET SET KARNA HOGA?
Sir ye charging automatic cut of karga ya nahi and bettry protection hai
No my friend..It is not a automatic cut off circuit..
@@Techhelp11 ok sir
What if I used 3-4 lithium in parallel connections, is this circuit still applicable or need to modify the circuit
Sir ji I am pranab.west Bengal se .6volt 5ah battery ka diod and bc547 se .led on /off charging circut banaye
Hi Pranab...Ok..
Aise soda krdege
Aise soda krdege
So funny😅
Hello Dear.
I am trying to make 18 watt driver with the help of PF capacitor driver for my 18 watt
Led tube light.
2. Can i use the mini 18 watt led bulb driver for my Led tube light
Reply me plz.
Can we get something straight here. Some said it will not work but the guy tested it and it cut off when fully charged.
It is found you reply only to comments saying good,nice video, etc and not to anyone asking a doubt. Too bad.
It is not true my friend...I always try to reply all the comments..
sir aap 6 volt,9 volt, aur 12 volt ke battery charging ckt ke bare mei isi tarike se bataiye.aur kitne amp battery ko charge kar sakta hai.
Sir g input voltage kitna da shakte hi
Can I use 10k preset
Sir preset ki setting kaise karen wo to bataen
sir output ka maximum currenr kitana hoga.aur kya yah output suply ko auto cutt of karega ya keval indication dega. plese bataye.
Friend output maximum 1 amp but if you want more output amp then use a 1N5819 Diode..It is not a auto cut off circuit..
@@Techhelp11 THANK YOU SIR.
When battery is low, charger voltage & current is mostly used by battery & no voltage is available to activate transistor (transistor's base through 1 k resistor). Therefore, green led does not glow while battery is being charged. However if battery is charged, charger's power & battery power is available to base of the transistor and green led will be activated as transistor will be activated. Thats how charge level is indicated. @tech help. Let me know if this assumption is correct.
Nope. I could explain it to you over the surface of what's actually going on. So when we give power the transistors base already has a bit of positive charge coming into it so the transistor turns on and gives the current to the battery. Also the negative of the battery is connected into the base. The resistance is chosen in a way that when the battery reaches near 4.2v the base voltage becomes less than the threshold voltage of the transistor to turn it on, because the negative from the battery and the positive that's already there in the base would cancel each other out ultimately stopping the battery from charging. The resistance used to do this ratio between battery negative and input positive is just the pot in the centre here. That's mostly it 😃
3k veriastor ka kaam kya hai nahi bataya aapne sir
Yeh charging auto cut hai ??
Battery ko 200 mili ampire current kaise de
Didn't show how to adjust preset
This is fake video jaisa dekhaya ohisa Nehi hota hai
Anyone interested in the working read this..
So I could explain it to you just over the surface of what's actually going on. So when we give power the transistors base already has a bit of positive charge coming into it so the transistor turns on and gives the current to the battery. Also the negative of the battery is connected into the base. The resistance is chosen in a way that when the battery reaches near 4.2v the base voltage becomes less than the threshold voltage of the transistor to turn it on, because the negative from the battery and the positive that's already there in the base would cancel each other out ultimately stopping the battery from charging. The resistance used to do this ratio between battery negative and input positive is just the pot in the centre here. That's mostly it 😃
all your 3.7v charger circuits are upon 1 diode between battery and the 5v .
why you do not use the transistor to cut the charging operation when the voltage reachs 4.2 volts . you are using the transistor for a wrong purpose I think .
Fake video Jaisa video mein bataya gaya hai aisa bilkul Bhi Nahin Hai Kyunki Maine yah circuit Banakar Dekha Tha is video mein pahle red light blue karti hai lekin Jab circuit Banaya to donon light EK Sath block kar rahi thi aur na hi ful charge hone per Red Band Ho Rahi Thi
Bhai tumne preset ko adjust nahi kiya tha
Not working
Fake