That is NOT a voltage regulator. It is an emitter follower current amplifier. The current gain of the 2N3055 is not infinite, the voltage will vary depending on the load current. But it works well as a miniature motor speed controller.
O problema destes circuitos caseiros ,e disto ninguem fala va-se la saber porque,e a sua queda de tensao,quando se aplica uma carga...uma lampada ou motor na saida de ajuste,ou seja por exemplo uma lampada de 12 volts 21 watts quando ligada na saida de ajuste a 12 volts reais,nao tem o brilho que deveria ter ao ser ligada a 12 volts reais,e se na maioria dos videos de facto mostra a lampada la ligada com os 12 volts e o brilho normal,e porque a voltagem la injectada de momento nao sao os 12 volts reais mas sim uma voltagem superior talvez 15v 20 v ou mais para ela dar o brilho normal,e para provar isso e muito facil em antes de por a carga lampada e regular a saida ajustavel para os 12 volts sem carga e so depois ligar a lampada,entao ai pode-se verificar a queda de tensao de 12 volts reais para 7 volts 6 ou 5 volts,porque de facto nao pode ter uma quebra tao acentuada,no aceitavel talvez 0,5 volts,dai a grande lacunas destes circuitos caseiros,nao quero dizer mal destes projectos e bem haja quem os faz e ate sao interessantes,mas na realidade tem este senao.
This is so misleading - First it is NOT a regulator Second the pot would quickly burn out as the Base current is very high Third a heat-sink is needed Fourth the wire gauge is too thin Fifth the leads of the pot will break after some use Sixth he missed the chance to have a cap multipier
Boa tarde meu nome é Josué Ribeiro Uai eu fiz o meu igual o seu mas nao funcionou minha fonte é de 12v será que interfere os outros projetos que vc faz eu fiz e deu certo aguardo a sua respostas
This is so misleading - First it is NOT a regulator Second the pot would quickly burn out as the Base current is very high Third a heat-sink is needed Fourth the wire gauge is too thin Fifth the leads of the pot will break after some use Sixth he missed the chance to have a cap multipier
This is so misleading - First it is NOT a regulator Second the pot would quickly burn out as the Base current is very high Third a heat-sink is needed Fourth the wire gauge is too thin Fifth the leads of the pot will break after some use Sixth he missed the chance to have a cap multipier
This is so misleading - First it is NOT a regulator Second the pot would quickly burn out as the Base current is very high Third a heat-sink is needed Fourth the wire gauge is too thin Fifth the leads of the pot will break after some use Sixth he missed the chance to have a cap multipier
@@AhangarRashid Ib = Ic / hFE hFE is low at high current between 10 and 20 If Ic is 2A then Ib could be as high as 100mA Max power for a pot is typically 0.2W, so at 20V that is only 10 mA
Answers is that other NPN power transistors can be used subject to the orginal ratings of the 2N3055. The TIP3055 is lower rated at 90W. In this case I would suggest the TIP35C at 125W 100v 25A. There's also plastic power transistors with the MJL, MJH and MJW typecodes. These tend to have higher transient frequency figures than most metal cased transistors. This is important with regards to audio clarity in amplifiers.
This is so misleading - First it is NOT a regulator Second the pot would quickly burn out as the Base current is very high Third a heat-sink is needed Fourth the wire gauge is too thin Fifth the leads of the pot will break after some use Sixth he missed the chance to have a cap multipier
Please make a video on 300w 20Amp Buck Converter module, it's voltage and Current can be regulated and variation in in input voltage don't effect on output voltage and Current, or make some circuit like it because it's very expensive module
This is so misleading - First it is NOT a regulator Second the pot would quickly burn out as the Base current is very high Third a heat-sink is needed Fourth the wire gauge is too thin Fifth the leads of the pot will break after some use Sixth he missed the chance to have a cap multipier
That is NOT a voltage regulator. It is an emitter follower current amplifier. The current gain of the 2N3055 is not infinite, the voltage will vary depending on the load current. But it works well as a miniature motor speed controller.
Entendi obrigado amigo
Eu coloquei uma fonte mais alta e ele funcionou
O problema destes circuitos caseiros ,e disto ninguem fala va-se la saber porque,e a sua queda de tensao,quando se aplica uma carga...uma lampada ou motor na saida de ajuste,ou seja por exemplo uma lampada de 12 volts 21 watts quando ligada na saida de ajuste a 12 volts reais,nao tem o brilho que deveria ter ao ser ligada a 12 volts reais,e se na maioria dos videos de facto mostra a lampada la ligada com os 12 volts e o brilho normal,e porque a voltagem la injectada de momento nao sao os 12 volts reais mas sim uma voltagem superior talvez 15v 20 v ou mais para ela dar o brilho normal,e para provar isso e muito facil em antes de por a carga lampada e regular a saida ajustavel para os 12 volts sem carga e so depois ligar a lampada,entao ai pode-se verificar a queda de tensao de 12 volts reais para 7 volts 6 ou 5 volts,porque de facto nao pode ter uma quebra tao acentuada,no aceitavel talvez 0,5 volts,dai a grande lacunas destes circuitos caseiros,nao quero dizer mal destes projectos e bem haja quem os faz e ate sao interessantes,mas na realidade tem este senao.
I used 60v bulb
I can't understand what is the use of that diode
This defuses extra frequencies or emi generated by load
Please clarify to people watching the video, that it only works for motors.
10 amperios? no creo lo mucho 2 amperios con disipador de calor
MAX 10 A...IMPOSSIBLE
Use heatsink
Or circuit Amper 10Amp at 110V
Good work,if the input voltage is between 15v to 20v will the circuit work?
Yes, use heatsink
This is so misleading -
First it is NOT a regulator
Second the pot would quickly burn out as the Base current is very high
Third a heat-sink is needed
Fourth the wire gauge is too thin
Fifth the leads of the pot will break after some use
Sixth he missed the chance to have a cap multipier
It is not Voltage Regulator,
It is Voltage Step Down
10 A without radiator???
Heatsink required
Boa tarde meu nome é Josué Ribeiro Uai eu fiz o meu igual o seu mas nao funcionou minha fonte é de 12v será que interfere os outros projetos que vc faz eu fiz e deu certo aguardo a sua respostas
This can not be a 10 AMPS load capacity
Allah Razı Olsun,Təşəkkür edirəm❤❤❤
This is so misleading -
First it is NOT a regulator
Second the pot would quickly burn out as the Base current is very high
Third a heat-sink is needed
Fourth the wire gauge is too thin
Fifth the leads of the pot will break after some use
Sixth he missed the chance to have a cap multipier
Sir can we use new transistor Equivalent of 2N3055
Yes, TIP3055
@@TARIQLAB that is not in a TO-03 case and has higher heat factor so you need a much larger heat-sink
Thank video
Very economical, and the best ,😊
This is so misleading -
First it is NOT a regulator
Second the pot would quickly burn out as the Base current is very high
Third a heat-sink is needed
Fourth the wire gauge is too thin
Fifth the leads of the pot will break after some use
Sixth he missed the chance to have a cap multipier
Cheep and Best
This is so misleading -
First it is NOT a regulator
Second the pot would quickly burn out as the Base current is very high
Third a heat-sink is needed
Fourth the wire gauge is too thin
Fifth the leads of the pot will break after some use
Sixth he missed the chance to have a cap multipier
@@kennmossman8701
How much amps.is the base current of this 3055 transistor
@@AhangarRashid Ib = Ic / hFE
hFE is low at high current between 10 and 20
If Ic is 2A then Ib could be as high as 100mA
Max power for a pot is typically 0.2W, so at 20V that is only 10 mA
السلام علیکم سر
کیا اس سے ہم 12 وولٹ 2 ایمپیر کا اڈاپٹر لگا کر 7.2 وولٹ سیٹ کر کے 6 وولٹ کی 2 عدد بیٹریز چارج کر سکتے ہیں؟؟؟؟
Jee , laiken heatsink laga lena
@@TARIQLAB
جزاک اللہ
ایک بات اور اوریجنل 3055 تو اب ملتا نہیں تو اسکی جگہ دیگر پاور ٹرانسسٹر استعمال کر سکتے ہیں؟
TIP3055 3 leg wala mil jata hai
Answers is that other NPN power transistors can be used subject to the orginal ratings of the 2N3055. The TIP3055 is lower rated at 90W. In this case I would suggest the TIP35C at 125W 100v 25A. There's also plastic power transistors with the MJL, MJH and MJW typecodes. These tend to have higher transient frequency figures than most metal cased transistors. This is important with regards to audio clarity in amplifiers.
Sir please make 2N3055 12V DC motor regulator speed low and high variable voltage
Same wil work, use heatsink
Sir potentiometer is burning 4 time please make a 12volt motor raning video 2N3055 12v motor Full speed
Excelente..
This is so misleading -
First it is NOT a regulator
Second the pot would quickly burn out as the Base current is very high
Third a heat-sink is needed
Fourth the wire gauge is too thin
Fifth the leads of the pot will break after some use
Sixth he missed the chance to have a cap multipier
Mạch điều áp này rất tuyệt vời
84v dc how ready sir
why
Bahi 220v Ac to 110v Ac circuit hai koi?
ruclips.net/video/aRlotWJWZqk/видео.htmlsi=YoteO9dcyRM21GxA
Please make a video on 300w 20Amp Buck Converter module, it's voltage and Current can be regulated and variation in in input voltage don't effect on output voltage and Current, or make some circuit like it because it's very expensive module
Sorry, but he hasn't a clue how to do it. All of his designs either won't work as advertised or will self-destruct at maximum current.
Have you certain about it? I was going to make one of his 12v battery cutoff circuit 🤔
why do you need this
VERY GOOD WORK 😮
This is so misleading -
First it is NOT a regulator
Second the pot would quickly burn out as the Base current is very high
Third a heat-sink is needed
Fourth the wire gauge is too thin
Fifth the leads of the pot will break after some use
Sixth he missed the chance to have a cap multipier