How to make adjustable Voltage regulator using Mosfet, Voltage controller DIY

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

#voltagecontrollerdiy
#adjustablepowersupply
#homemade101

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[S_e_r_g_ei]

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.

[waterfuel]

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.

[GereBrewstein]

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! 😄

[roybuckle]

Would you be able to charge a car battery with a 18 volt input and adjust it down to 14, 4 volt?

[alfredosandoval]

Saludos amigo, gracias por el aporte, que transistor puedo usar para que entregue 25 amperios?

[FULLCEZAUM]

Esse diodo seria uma proteção contra curto?

[m.fadhiilhaekal]

Thank you for the video, my question is does this circuit create ripple effect on dc outputlike boost converter or pwm controller?

[delfinsanz]

Buen circuito sencillo, estaría bien mejorarlo estabilizando la salida y protección de cortocircuito y quedaría de 10

[geoffkelland]

Hi
What is the output range for 50v input???
Thanks a million
Geoff

[alphahelix]

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 ?

[anujashanka]

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?

[rejabrabbani]

Hye, do you know how to connect this part (all material in the video) using plug? Do we need some adapter or something?

[wolfangramonmata]

uno coloca una bombilla de 12 volt y en 20 segunto el transistor tiene 200 g4ado de temperatura.

[Biocosmo]

saludos, cual es el valor de la resistencia variable?

[mohimhowlader]

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

[بلديةالشوكة]

I want the same circuit with the addition of a resistor that controls the current

[UNBEATABLE_GUY]

I have glow plug which is work 12v 10a ... So can this circuit survive please reply... 😊

[hemantdevotional]

Aapne ये हॅन्ड ग्लोज kidhar से
खरीदे हे??

[ZeSa-]

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

[khairrudin]

I can't irfp 450 but trere is 460 size, can i do make it?