@@808pathfinder Yeah I noticed how fast it heats up if the load draws a lot of current even with a heatseek. Maybe a resistor on the output would help regulate the current draw.
@@tetraederzufrequenztesla2342 that's a good idea. The lm317 is a voltage regulator that limits the current draw as well I believe. That should stop the mosfet or transistor from overheating.
While it makes a good variable output voltage source, as a regulator not so much. If the load changes, the voltage will need adjusted to compensate. So variable output, yes, regulator, no! However nice simple setup. Thumbs Up!
The circuit is a simple "source follower" setup where the voltage at the source follows the voltage set by the potentiometer. This leads to three problems, one minor and two major. The minor problem is that the output voltage changes with the load current, but not by much. The output impedance is the reciprocal of the forward transconductance (minimum of 19 S from the data sheet), so the output voltage will drop by about 0.05 volts per amp. The first major problem is that the output voltage changes *directly* with any change in input voltage, so there is no regulation as such, and no ripple or noise rejection. The other major problem is that without a heatsink, the IRFZ44N has a temperature rise of up to 62 C per watt. A circuit similar to one demonstrated used to drive a 12V LED from 29V supply would drop (29-12) = 17 volts across the MOSFET. If 1 amp of current were provided, it would produce (17 x 1) = 17 watts in the transistor, potentially raising its junction temperature by as much as (62 x 17) = 1,054 degrees Celsius. These MOSFETs were designed for switching operations where they are either fully on or fully off. Using them in linear applications requires a sizeable heatsink.
Many wonder how many amperes you can absorb, if as in the video you provide an input of 24V and an 12V output load, without the heatsink, you can deliver 0.167 amperes, because this transistor can dissipate only 2 Watts.
Muito bom projeto com ajuste de tensão de saída. gostaria de saber se não precisa usar um dissipador de calor no transistor? Valeu pelo video, Deus abençoa.
IRF540 VR 50k Diye 12v motor control korar jonno... But MOSFET khub e gorom Hoi. 1 min calanur por ar hat laganu jaina ... Emn holo kno plz bolben ...!
Perdon por la ignorancia. ..necesito hacer un. Circuito para un generador dc 24 volts. Yo lo puedor rectificar a mi gusto. Y agregarle el regulador ok. Busco algo para usarlo cinco o seis horas. Si me ayudaras. Dandome un tip. Gracias x tu tiempo
Nice idea im going to make it.i have a epson dc motor its 12 to 42 volts. I test my dc power supply to a epson dc motor, around 19 volts the motor will start to spin faster.my favorite part is i like when the motor start spinning in reverse at 19 volts or greater with the blade attached to it while spinning And i see sparks when i be in the dark lol.
It ia not working for me...i dont know why i placed 5v as input and trying to control the brightness of a led diode but the led glows very dim at full pot rotation towards the drain side...i checked the voltage it was 2v at max pot rotate... Any fix please tell...
No recuerdo muy bien si soporta 18 amper y 50 Volt. Se debe colocar el transistor en una buena placa de alumino, antes de colocarlo en la placa de aluminio deben aplicar crema silicona de transferencia de calor solo eso evitara' que se queme el transistor.
adjustable=yes regulated=no why people always say that mosfet can act as regulator? if you want to get regulated output you must have regulated input to the gate pin.
Using a MOSFet in this way is foolish. Mosfets are great devices because of their super low resistance when fully turned on. Low resistance=low heat loss. This circuit not only has no way to compensate for changing loads, but the Mosfet will overheat because its not fully turned on. You have to turn it on all the way, then off again very quickly so that you have a pulse. That's what a pulsewidth modulated (pwm) circuit does. If you want less output, then make your pulses shorter so less time passing power. You want more output, make the pulses stay on longer per second. Keeping with the simple concept of this design, use a 555 timer as the input to the gate, not a 10k pot. jm
please, can you help me? I wanted to create a circuit that would plug into 110v or 220v and give a 12v output with 7a to continuously power a screwdriver that blew the battery. Would you have any examples ??? thanks and i'm a fan of your channel, congratulations.
For me the best solution is to buy a switching power supply. But if u want create a circuit at home, the easiest way is a linear psu. Transformer, full bridge rectifier, capacitor and a Lm7812. But this ic can output max 1amp. U have to add an external power transistor to amplify the current capability on this circuito.
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Built it and it works well, and works with a battery too. Thank you sir.
got to add a 4' heat sink n a small fan to it to make it last
@@808pathfinder Yeah I noticed how fast it heats up if the load draws a lot of current even with a heatseek. Maybe a resistor on the output would help regulate the current draw.
@@johnruscigno5738 Can I realise the same connections but using IRF 540 transistor or Lm317 and B 100 k potentiometer and 10 k resistor ohms???
@@tetraederzufrequenztesla2342 that's a good idea. The lm317 is a voltage regulator that limits the current draw as well I believe. That should stop the mosfet or transistor from overheating.
Ok
Lo hice y funcionó bien de 0 a 30v con 2 amperios...... Recomendado
Lo costruito ma riscalda troppo.Cosa sarà?
Funciona perfeitamente, fiz está aprovado .
Éxitos Caracas Venezuela
Gracias por el vídeo
While it makes a good variable output voltage source, as a regulator not so much. If the load changes, the voltage will need adjusted to compensate. So variable output, yes, regulator, no! However nice simple setup. Thumbs Up!
So if the load goes up the voltage will drop?
I'm trying to grasp the principle.
The circuit is a simple "source follower" setup where the voltage at the source follows the voltage set by the potentiometer. This leads to three problems, one minor and two major.
The minor problem is that the output voltage changes with the load current, but not by much. The output impedance is the reciprocal of the forward transconductance (minimum of 19 S from the data sheet), so the output voltage will drop by about 0.05 volts per amp.
The first major problem is that the output voltage changes *directly* with any change in input voltage, so there is no regulation as such, and no ripple or noise rejection.
The other major problem is that without a heatsink, the IRFZ44N has a temperature rise of up to 62 C per watt. A circuit similar to one demonstrated used to drive a 12V LED from 29V supply would drop (29-12) = 17 volts across the MOSFET. If 1 amp of current were provided, it would produce (17 x 1) = 17 watts in the transistor, potentially raising its junction temperature by as much as (62 x 17) = 1,054 degrees Celsius.
These MOSFETs were designed for switching operations where they are either fully on or fully off. Using them in linear applications requires a sizeable heatsink.
Türkiye'den sevgiler saygılar iyiki varsın Allah'ın güzel kulu laykini beyeniyi attım bilgin olsun hoşçakal
Many wonder how many amperes you can absorb, if as in the video you provide an input of 24V and an 12V output load, without the heatsink, you can deliver 0.167 amperes, because this transistor can dissipate only 2 Watts.
Can suggest a transistor for 15watt... ☺️
This type of circuit can be used for short term or for education purpose...but practically can not be used due to huge energy conversion...
After proper cooling system it can be use. Am I right?
👍👍👍👍
Muito bom projeto com ajuste de tensão de saída. gostaria de saber se não precisa usar um dissipador de calor no transistor? Valeu pelo video, Deus abençoa.
Muy bueno exelente!!!!! Saludos desde argentina!!!!👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👋👋👋👋👋👍👍👍👍
Very good & simple curcuit , but how much current can flow within this curcuit ? Please clear
Excellent bro.
Its better combination to ampere adjustmet
Hello, you loose around 2.8v, can we avoid that ?
Legal.. eu realmente estava precisando desse circuito pra mim montar minha fonte de bancada!
Meu amigo vc utilizou à fonte dê 12 v foi nã entrada
@@lilasouza9375 na verdade eu ainda não montei, mais a saída 12v da fonte é ligada sim na entrada do circuito, assim pode sair 1~12v do circuito!
@@gabriel-dz7zg obrigado meu irmão
IRF540
VR 50k
Diye 12v motor control korar jonno... But MOSFET khub e gorom Hoi. 1 min calanur por ar hat laganu jaina ... Emn holo kno plz bolben ...!
Output voltage will change with load currennt. Can't say this circuit is voltage regulator. You can say it is alalog variable power supply.
Wahhhh kya knowledge hai
😂😂😂
Interesting. Very simple!
Que bien gracias por tus videos.
Собрал, всё работает, спасибо.
👍👍👍 I liked it
This circuit can be use in 5 amps.......?
Cool video, thanks :)
Opa blz amigo muito bom eu fiz com um que eu tinha aqui com irfz46n deu certo muito bom
Olá a fonte pode ser de até 50V?
Tried This circuit.at 24v input & load of 12v,4amps,MOSFET cud be used for cooking an egg!!
Heatsink
Bhai ek to voltage drop half krdia upar se curent b 4 amp choti c ic ki leli garm to hogi e
Me salvaste la vida viejo🎉😊
Dada apnar Sam multimeter kothai pabo
This is very good but how many Appears input and output ?
A need that answer
What is the out amp?
Maximum amp 35A and It depends on your power supply current
Perdon por la ignorancia. ..necesito hacer un. Circuito para un generador dc 24 volts. Yo lo puedor rectificar a mi gusto. Y agregarle el regulador ok. Busco algo para usarlo cinco o seis horas. Si me ayudaras. Dandome un tip. Gracias x tu tiempo
Excellent 💐
If input voltage falls,so will output.not a regulator but a variable source.🙂
Seu vídeo e real , PARABENS pela sua sinceridade ...valeu!
Nice idea im going to make it.i have a epson dc motor its 12 to 42 volts. I test my dc power supply to a epson dc motor, around 19 volts the motor will start to spin faster.my favorite part is i like when the motor start spinning in reverse at 19 volts or greater with the blade attached to it while spinning And i see sparks when i be in the dark lol.
How many amps is the input current? How many amps that regulator can support?
Good question
It ia not working for me...i dont know why i placed 5v as input and trying to control the brightness of a led diode but the led glows very dim at full pot rotation towards the drain side...i checked the voltage it was 2v at max pot rotate...
Any fix please tell...
Falta descrição dos componentes , justamente ,o que liga do potenciômetro, para o terminal do fet.
Não é componente, é só um jamper( pedaço de fio )
Подключил от блока питания 12в,на выходе выдаёт от 0 до 10 вольт.
Input 45volt 5amper support hotha bro
Thanks dude.
Nc... But hum is ko use kiye but output 3 v kam aa raha he! Or is circuit me use heat sink sir..... Thank you
No recuerdo muy bien si soporta 18 amper y 50 Volt. Se debe colocar el transistor en una buena placa de alumino, antes de colocarlo en la placa de aluminio deben aplicar crema silicona de transferencia de calor solo eso evitara' que se queme el transistor.
can i use IRF840 maybe?
No heat?
It's not a regulator
The voltage isn't regulated
I have motor 105ampers 36volts dc I need to control the voltage what mosfet can we used this motor
adjustable=yes
regulated=no
why people always say that mosfet can act as regulator? if you want to get regulated output you must have regulated input to the gate pin.
Nice demo
Can Ampere change vith voltage 3:30 😊
This project is good for small amps load like LED s but in big load there is volt drop equal to 50%
Support 6A ???
sir in put 29 volt than kudukanuma ella 12 volt kudukalama.....
Waktu pengetesan d mn tangan yg satunya ya?....atw lg ngoprek mesin yg lain?
🇧🇷🇧🇷OBRIGADO AJUDOU MUITO
👍👍😌👍
With a voltage of 9v at the input can we have 12v output
No this is just a linear step down circuit meaning that the voltage can only go to and below VCC. This circuit is not recommended to build.
esto es lo que queria ver👏👍
please inform me your voltage regulator working on 18 Ampere or higher ??
No
класс!! но это устройство нагрузку держать не будет
Почему не будет ? Пару ампер пропустит
Yaxshi ishlamaydi 4 marta kuydi
@@ДНЕПР-э6у а потенциометр выживет?
i would add a 4' heat sink n a small fan to make it last
Can I use irf3205 ????
Lo que no entiendo es que eso funciona con entrada de 220 V. Pará salida de varios voltajes menores.
Using a MOSFet in this way is foolish. Mosfets are great devices because of their super low resistance when fully turned on. Low resistance=low heat loss. This circuit not only has no way to compensate for changing loads, but the Mosfet will overheat because its not fully turned on. You have to turn it on all the way, then off again very quickly so that you have a pulse. That's what a pulsewidth modulated (pwm) circuit does. If you want less output, then make your pulses shorter so less time passing power. You want more output, make the pulses stay on longer per second. Keeping with the simple concept of this design, use a 555 timer as the input to the gate, not a 10k pot.
jm
Please can I use any transistor?
Mas mo nanya, rangkaian ini untuk trafo 10 Amper murni panas ga, mksh
Hi, how many current take it. And what's the blue wire that put between the transistor and the potentiometer pin. Thanks a lots.
That's connect a random pin of potentiometer to the drain of mosfet
@@s0ssis926 a random pin you meant the one in the middle of potensiometer?
@@anismuha yes
Maximum current depend installed mosfet. See datasheet for detail
48 v ka same rahyga ki kuch or krna prega
Mantapppp plus kerennn wow
I have 1 motor
input batery 36volts output motor drive 36volts 105ampers 1hp how can we control the voltage
Kitny amp ka load utha Sakta hai ye
Very Thanks bhai
Max Voltage in?
Good 👍👍
Great
what value of potentiometer??
please, can you help me? I wanted to create a circuit that would plug into 110v or 220v and give a 12v output with 7a to continuously power a screwdriver that blew the battery. Would you have any examples ??? thanks and i'm a fan of your channel, congratulations.
For me the best solution is to buy a switching power supply.
But if u want create a circuit at home, the easiest way is a linear psu.
Transformer, full bridge rectifier, capacitor and a Lm7812.
But this ic can output max 1amp.
U have to add an external power transistor to amplify the current capability on this circuito.
if the regulator is 50k as I complement it as I adjust the resistors thanks
Сколько ампер выдержит
Good video.ty for sharing
Can I use it for solar fan DC for speed control
How to give 29 volt power supply usally we get 1.5 volts to 24 volts
Muy bien, excelente para los proyectos y muy fácil de hacer gracias. Saludos.
👍👍👍👌
i want to replace 10k potentiometer with resistor to get fixed 5v please tell me resistor's
ohms and watt
Bhai mere liye bhi bna skte ho kya aap ye same to same
Sar ji Out put ampier kitni hogi
It's a step-down circuit! Make a step-up circuit.
How much volt we give..12v
Isme kitne amp de skate he
How much ampere?
How can we also control the current?
Muy bueno este circuito, puedo hacer una fuente regulable de 10 amperios, que proteccion debo ponerle a Mosfet. Disipador de calor?
👌👌👍
Ji maximum input current??
Thanks sir
❤❤❤❤❤❤😊
Que pusiste entre D y el resistor?
Agregó un simple cable.
Pode ligar direito no 110volt
Tienes 3 elementos y solo muestras el valor de 2 explicame ?'?
what is current rating
this blue piece between the drain is the potentiometer is which one? thanks!
5 amp load chalega 12 hours
Boa noite pessoal, quantos amperes suporta? Obrigado
E só ver o datashet do Mosfet e ver a corrente máxima suportada
@@rodrigocosta3563 obrigado amigo vou ver certinho