How to make adjustable Voltage regulator using Mosfet, Voltage controller DIY
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- čas přidán 20. 02. 2023
- How to make adjustable voltage regulator using mosfet, voltage controller diy. ( dc to dc adjustable )
This circuit can provide 100V, 10A DC as maximum INPUT. It is adjustable from 0V to 100V DC. this is a very good Circuit. good luck to you.
Components used in this project:-
1. Irfp450 mosfet
2. 50K pot
3. 10A diode
4. 0.22-ohm Resistor
5. 10K
**FB link: / homemade-101-105225441...
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#adjustablepowersupply
#homemade101
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Inverter 12V DC to 220V AC using TL494: czcams.com/video/UK_d7Upulr0/video.html
My opinion is that the Pot turns down in ohms counter clockwise. I measured this on 50Kohm Pot. This is a voltage divider that needs lowest ohms to begin with for the gate, for lowest voltage, as the Pot is R2 + R 1 from left to right. The .22 ohm resistor is providing the source volts for the pot with the ohms for R2 to ground, for gate volts. One turn to zero on pot C.C. will be a short as there is no minimum resistor as going to ground. ! E volts out = Beginning DC volts times R2 / R2 + R1. Add R3 as to left end of Pot to ground. The MOSFET is G D S , as from left to right. It also depends on which way pot is facing you as per which end is R2 as connected to ground! R2 volts to Ground is Gate volts applied. Many semiconductors have been damaged by not having proper minimum resister in series with Potentiometer.
👍
I try this circuit to drive motor dc 24v - 3A. Running 1 min, potensio is very hot. What should i change or add resistor?
@@buatngetes3219 a potentiometer is typically an audio taper pot. For circuits like this, you require a rheostat
I'm watching from Russia.
Everything is simple and accessible! Respect to the author!
I have two questions for the author.
1. Why do I need a 10kOhm resistor in this circuit? What does it give?
2. What is a 22 ohm resistor for?
Can someone else, besides the author, explain in clear language and in detail?!
With respect from Russia.
.
Смотрю из России.
Всё просто и доступно! Респект автору!
У меня два вопроса к автору.
1. Для чего в этой схеме, нужен резистор на 10 кОм? Что это даёт?
2. Для чего нужен резистор на 22 Ом?
Может ещё кто-то, кроме автора, объяснить понятным языком и подробно?!
С уважением из России.
Welcome bro. Welcome bro. It was use fusible resistor.
@@homemade_101
😁😁😁
It turns out that you understand less about this than I thought you did!
.
Оказывается, ты меньше понимаешь в этом, чем я о тебе думал!
@@S_e_r_g_ei he is right ,resistor works as fuse ,,to prevent overload
I just build this with minor differencies, first of all I didn't have all exact same components but very close enough and second, I did read comments and made my own conclusions.
I used IRFP 460; 5,6KOhm 5W resistor from Drain to 10KOhm potentiometer, 10KOhm 1/4 or 1/2 Watt resistor (not quite sure which one) from Gate to Source and 6 Amp diode. This worked quite smoothly, however I did notice that using with voltage screen which shouldn't draw current much: Original voltage from transformer to voltage adjuster was ~21 Volts but with 3-wire voltage screen this voltage dropped to +16 Volts maximum. I did check with multimeter also. I'm not professional enough to explain why does this happen. However I did order a couple voltage/amperage reading screens so whenever they'll arrive I will put one of them in test and check what kind of effect it has with this application.
Ps. Good video, probably best small voltage divider guiding video also with few components.
Pss. Everyone who reads rhis: Remember passive heatsink big enough or active cooling also with resistors which are capable to prosess excess current and heating up! 😄
than you your knowledge shear
Buen circuito sencillo,estaría bien mejorarlo estabilizando la salida y protección de cortocircuito y quedaría de 10
Thank you bro
Nice vedio 😍😍💖
Thank you..
I want the same circuit with the addition of a resistor that controls the current
Saludos amigo, gracias por el aporte, que transistor puedo usar para que entregue 25 amperios?
plz check data sheet of transistor.
Thank you for the video, my question is does this circuit create ripple effect on dc outputlike boost converter or pwm controller?
no this is single power supply normal
Ini chanel luar negri yaa.
Esse diodo seria uma proteção contra curto?
yes
Hola. Agradezco si compartes un regulador que soporte 20 amperios de salida para la carga. En este tu vídeo los 25A es del transistor. fui a ver el datashet del transistor y es de 25a😢 osea que soporta máximo carga de 5a y aprox 10w y 15 maximo.
🤔
Hi
What is the output range for 50v input???
Thanks a million
Geoff
yes no problem
uno coloca una bombilla de 12 volt y en 20 segunto el transistor tiene 200 g4ado de temperatura.
3A =buum
müsste die Diode nicht in Gegenrichtung sperrend vom Ausgang auf den Plus Eingang ?
Oder als zweite Diode ergänzend ?
Ist der Mosfet völlig anders als der Bipolar - Transistor ?
I don't Understand bro. Plz can you tell me english
Hye, do you know how to connect this part (all material in the video) using plug? Do we need some adapter or something?
power supply or battery
@@homemade_101 power supply
Bro..i am from Bangladesh. I like your video. I want to make this but my battery is 120amp dry battery and motor 12v .what to do.
Please reply
no problem. you can use a 120-amp battery.
What happen use irf250. Im using for 1-12v variable power supply. My smps is 12v 5a.
no problam
Cuanto es el maximo voltaje de entrada?
100V DC
What changes to have 220v dc motor speed control max. 5 amp.
220V DC 🤔🤔🤔. I think not recommend this circuit it
Is it ok to conenct the input of a 220v to 24ac transformer rectified with a rectifier bridge and smoothed out using a 3300uf cap to this circuit and use as a voltage regulator?
yes but input DC voltage
@@homemade_101 my 10k potentiometer burned why regulating to lower voltages. Do you know why it happens
Рисуй всегда на бумаге электрическую принципиальную схему чтобы всем было понятно
ok
What changes i need to do for making 100 volt / 10 amps dc - variable like this ?
no problem. use this is
But don't use lage voltage difference between input and output. Power dissipation will be too high for the FET to handle it. For high power Buck converter is much better but more complex.
saludos, cual es el valor de la resistencia variable?
47K
thank you@@homemade_101
I try to use 15v source from cordless battery, and 12v from cpu power supply, but those input make the heatsink so hot, is that normal ? I try this for runing dc motor 775 for 15 second
yes it is normal. use large heatsink and cooling fan
@@homemade_101 thank you 👌
Well how much months it will last?
use a large heat sink...can long time use
I want to know how many watt 10k resistor did you use?
1/2 W
@@homemade_101 thank you for your reply. all the best.
I can't irfp 450 but trere is 460 size, can i do make it?
yes
Hi ,can i shift to irfp 264 or250 ?
Yes N Channel ok
how many amperes did you use ?
5A
Saya suka ini, tp gak menemukan mosfet yg ukuran 450 adanya 460 bisa gak?
ok n channel
Can i run 15 amp 12 volt with this circuit?
yes but use lrge hest sink
Aapne ये हॅन्ड ग्लोज kidhar से
खरीदे हे??
no
Can use as 5v battery charge. Set point to 5v.
Yes
How U use Voltage input ?
12v to 60V
@@homemade_101 , ok thank's 🙏
З розмірів радіатора зразу стало зрозуміло що ккд невеликий
Can we use this method for ac motor to control its speed sir...please reply...
can't. DC only.
Bro can this be used for 48volt and 24 amp battery source to control a 1000 watt motor??? Please do reply this is very important for my project !!!
1000W ?? can't bro.
Thanks a lot bro for your immediate reply … tht means a lot and I’m your subscriber now
How add voltage meter
output thru diode +AND -
А с резистором 0,27 работать будет?
yes
@@homemade_101 а с советским резистором 0,2 ом?
klo untuk 18 vlt pakai resistor berapa mas
🤔
How many amp voltage input
20A
Thank you sir
How to make 30a out
Connect at least 4 more MOSFETs in parallel.
Chanel luar negeri ya
👌
Kyon
??
We need 10 ampr supply. To 24v dc to 14v dc.
DC TO AC CONVERTER
🤔
you did not show us the input source volatge..
16V DC in
Why u use 10 a diode
It is Shorts circuit projection
Input maximum ampr......???🤔🤔🤔
20A
If more than 20A current came
What will happen
I have a bus
It has 24v dc high Ampere battery
But i need to reduce the voltage to 12v 10A
Because I need to connect my amplifier
My amplifier maximum input voltage is 12v
Bro plzzzzz help me 🙏🙏
What can i do?
И паста теплопроводная не нужна
20A???
😮😂😂😂 lo mismo dudo. 20a datashet del transistor más no de salida de ésta fuente. Y máximo carga soporte 4a 15w.
Using a .22 ohm, 5 wattt resistor is insane. You might as well just use a wire. If you have a 100 v input, and try to drive 10 amps at a much lower voltage, that puny little heatsink will not be enough and the transistor will overheat and fail. The 10k G-S resistor is completely unnecessary.
Plus, the input most certainly is NOT 16 volts. It's at least 18, and I very much suspect it's more like 24. It's not a good look when you don't even know what you are showing.
The circuit is in no way a voltage "regulator." It is nothing but a simple source follower. The output voltage will change with output load current and input voltage. There would be variation from unit to unit and moderate temperature sensitivity. A transient short circuit on the output could result in gate-source voltage high enough to destroy the FET if the input voltage was high enough and wasn't pulled down by the overload.
@@d614gakadoug9 u seem pretty knowledgable, so i wanna ask, does this mean that if I use a 15V pulsating dc as the input it wont be able to regulate it and keep it at a constant 12V if I set it so?
BJT HO MOSFIT
Mosfet
@@homemade_101 ok grazie
जिस तरह अपने डायोड लगाया है । वह काम नही करेगा क्यों आप लोगों के भरोसे के साथ खेलते हैं । ओ लोगों का पैसा बर्बाद कर रहे हैं ।
How to place the diode
Ерунда это а не регулятор, будет греться как утюг. Надо делать шим регуляцию на хоия бы таймере ne555, а это херня гол мая. Можете даже не пробовать спаять, будет греться!
555 ic coming soon
It s not good regulator, it, s have very very hit
yes. use large size heat sink.
copy paste from others,
Fack video
Off load ok but with load smoke and charcoal.😂😂😂😂😂😂
Nop this is good circuit
I want the same circuit with the addition of a resistor that controls the current
👌
klo untuk 18 vlt pakai resistor berapa mas
resistor ?