You clever. Music in the subject and not loud. Thank you. Subscription. I'm from Ukraine.

@Inventor_AW

Жыл бұрын

thank you

The original power supply was 12 volts at 2 amps (but I think those are Chinese Amps!). This variable zener changes the voltage. So the current will decrease to 1 Amp at the 24 volt setting. Any setting above the original 12 volts will deliver less current. Nice useful little video though.

@gabrielakakporo9783

Жыл бұрын

How do one control the current like the voltage is controlled ?

@antoniodevincentiis3823

8 ай бұрын

since no turrns have been added to the secondary of transformer, much less than 1A will be output

@ccv3237

5 ай бұрын

Of course, since the basic power unit has not change therefore its total output watts will not change either, meaning if the voltage increases its amps should decrease accordingly, and vise versa.@@antoniodevincentiis3823

great potential project, but this mod will not drive this bulb for a long time without overheating and eventually damaging components ? i would be interesting to add power transistors to hold more power.

احسنت بارك الله بيك احسنت النشر عمل متقن وحترافي بالتوفيق

@Inventor_AW

11 ай бұрын

اشكرك

Magnífico video. Gracias Inventor 👍👏

@Inventor_AW

Жыл бұрын

Gracias

Keep up the good work

@Inventor_AW

Жыл бұрын

I will

Nice job 👍👍👍

Considering the cost of normal power supplies, its a big deal!👍👍👍

Great. How much power can that little TL431 transistor handle?

@Inventor_AW

Жыл бұрын

it's all about power supply , The circuit works like a variable zener diode

Nice video, thanks :)

I like what I see on this channel. " SO I SUBSCRIBED TO YOU" THANK YOU ALL THE COOL VIDEOS, & I'll be watching. 👍🇮🇪💚🙏🏼

@Inventor_AW

Жыл бұрын

thanks a lot

Keren keren simple

Siempre lo hacen con el adaptador más sencillo que hay. Quiero hacer esto con fuentes conmutadas con retroalimentación

Harika.

Very nice. Excellent idea. Thank you for making and posting this video. God[Bible] Bless.

@Inventor_AW

Жыл бұрын

thanks

Parabéns. Muito útil.

@Inventor_AW

Жыл бұрын

Obrigado

Can I use the same part for the 12v 2.5a adapter? I will use it by adjusting the brightness of the 12v 30w bulb

@Inventor_AW

Жыл бұрын

it's ok if it has the same feedback

Well done!

Si aumentan mucho el voltaje explota el tránsitor de conmutación aconsejable variar + - 5 voltios para lo que estaba diseñado la fuente original

@ccv3237

5 ай бұрын

Efectivamente, el diseño original de todo limita hasta dónde se pueda aumentar el voltaje de salida sin consecuencias.

👍

TOP👏👏👏👏👏

@Inventor_AW

Жыл бұрын

thanks

@waldemarlis2069

Жыл бұрын

@@Inventor_AW hiok bo 8 ul u no to i oo uu by

@shusain7480

8 ай бұрын

What's resistance value

💯

Can this be low noise

eita

4:23min teste no voltímetro com a lâmpada ficou bem ruim de ver a leitura, mas tome 👍pelo projeto !

Good job brooo

@Inventor_AW

Жыл бұрын

thank you

I find that Most supplies/adadpters dont even use the clear zenar diodes..

Hello, can i use the same parts for default 24v power supply as you have in the video? or i have to use other values.

@Inventor_AW

Жыл бұрын

yes you can

@BlueScreendo

Жыл бұрын

@@Inventor_AW thank, And what if the zener diode is not in the source?

@Inventor_AW

Жыл бұрын

@@BlueScreendo There must be a zener diode on the feedback, otherwise it won't work. The idea is that we replaced the zener diode with a variable one (that i made ).

@BlueScreendo

Жыл бұрын

@@Inventor_AW but what if the Zener diode hasn't been there since new?

Adjustable shunt regulator in place of a zener diode.

@Inventor_AW

Жыл бұрын

exactly

How do one vary the current like the voltage independently ?

@Inventor_AW

Жыл бұрын

wait for a video

Nice

@Inventor_AW

Жыл бұрын

thank you

при выходе меньше 12вольт бп уйдет в релаксацию и под нагрузкой напряжение станет пульсирующим при выходе больше 20вольт под нагрузкой сгорит микросхема БП .

@lexxkrt

Жыл бұрын

можно поподробнее почему будет пульсация, там же стоит конденсатор на выходе. и почему сгорит микросхема? вроде прикидывая в голове схему не пойму как может данная переделка на микросхему влиять? там же всего-то смещение напряжения на tl431, обратного напряжения на микросхему не поступает, почему она должна сгореть?

Марка цыфрового табло, укажите

Bagaimana dengan adaptor 12v 1a apakah sama caranya

No se puede decir cualquier adaptador no todos cuentan con diodo zener...............Bogota Colombia....

Como faz se a fonte tem 6 Zener diode??? Remove todos?

@Inventor_AW

Жыл бұрын

Tirei o diodo zener responsável pelo feed back e troquei por um diodo zener de valor variável (que fiz)

👍👍but: How to open such a sealed housing without damaging......

@Inventor_AW

5 ай бұрын

you can use thinner

Dúvida..este mesmo esquema serve para uma fonte de notebook

@luizfernandolessa1889

Жыл бұрын

Boa tarde Gil e amigos. Creio ter assistido um vídeo em que se fazia um trabalho similar em uma fonte de notebook, de 19v, se não me engano. Creio que se o circuito for parecido, dá pra fazer. Forte abraço do Rio.

@Inventor_AW

Жыл бұрын

O importante é que o círculo de feedback seja semelhante

Jika di adaptor ada 2 elco dan dua dioda bagaimana cara untuk mengubahnya?😊

SUPER(TURKEY)

@Inventor_AW

3 ай бұрын

thanks

Please give circuit diagram 🥺

Can I use 50k ohm potentiometer instead of 500k?

@Inventor_AW

2 ай бұрын

No

Bagaimana kalau pakai ic regulator ?

Sir maine ye cut bilkul aapke jesan banaya hai lekin mera 0 to 19 volt se aage nahi ja raha aapka 30 volt tak jata hai kiya fault ho sakta hai

@Inventor_AW

8 ай бұрын

शायद एडॉप्टर अलग है

DO YOU HAVE A PARTS LIST?

@Inventor_AW

Жыл бұрын

TL 431 VR 500K R 47 K

@waltp3373

Жыл бұрын

inventor forgot the 470 mfd 50v cap.

@Inventor_AW

Жыл бұрын

@@waltp3373 yeah

@mickymannis

Жыл бұрын

Thankyou Walt P for the missing part just don’t want to look like a tube but we’re did the digi gadget come from ? What’s it’s part number and we’re do I stick it ?? Again I’m grateful for the speedy response

@waltp3373

Жыл бұрын

@@mickymannis He replaced the 470 mfd 16v capacitor at 1:25 with a 470 mfd 50v electrolytic capacitor. Be aware of polarity. Mark the negative (-) side before removing the old one. You can get all these parts at ebay, Amazon or any good electronics store. Hope this helps.

Is this limited to 31.8v? Or will it go to 36v?

@Inventor_AW

Жыл бұрын

32 V max

👍👍👍

Bro I want to know about the output current How much is it?

@anomittity

Жыл бұрын

I Believe the rule of thumb is if the supply, in this case... 2 amps, and your device requires 3, the device load, it will not work fully or at all. Might damage the supply or the device because of a brown out/over current state that occurs when mismatched psu's are plugged in. If the device amperage is no higher than 2 amps, then the circuitry in the supply and the device with the correct voltage will regulate the amperage via the internal resistor set and how its configured in the regulator circuit. So just make sure your device has a supply at the voltage that is not a higher current rating than the device itself to avoid issues. Don't take my word for it, this is an educated guess. Have not messed around in over 2 decades with this stuff. Want to try to get back into it and this channel sure brings back alot of my training 30 years ago. Gotta brush up on the math again definitely! it explains it all period! Doing the math will definitely cue you in on the proper values. Ohms law should suffice. P.S. The Transformer secondary dictates the max current injected into the DC rectification/regulator circuit, and the entire output part of the circuit itself, is what regulates the output current. Why i suggested figuring out the math for the total resistance, and total voltage, employ ohms law, Voltage (v) divided by total resistance (r)...that will give you total current or amperes it will draw. (i) Good Luck!

@Inventor_AW

Жыл бұрын

2A

@fo4mm209

Жыл бұрын

Agree, i don't think that this mod. will drive many A's without at least, a ballast transistor or something close

@asifsiddique6485

Жыл бұрын

If you increase voltage, obviously amperage will be decreased by the same factor(ideal condition), as a rule of thumb power remains constant. 12V X 2A = 24 Watts, You can take 24V but then ampere will be only 1A and so on...

@blg53

Жыл бұрын

@@asifsiddique6485 That rule applies to transformers only. What actually happens depends on the intelligence of the power supply. Generally the power that is requested depends on the load, but the device will probably have an overcurrent protection so may be automatically switched off if the current exceeds the rated value (2A in this case). Remember the original design of the device is for a fixed voltage (12V). It knows nothing about power, but if it is limited to 2A the power BECOMES limited to 24W. With the modification it will still be the same, it still knows nothing about power and is still limited at 2A. So if the load "asks" fo 2A it will attempt to deliver it as the current limit is not yet exceeded. And if the voltage is set to above 12V it will attempt to deliver above 24W. This means it will probably exceed power rating of its components, overheat and burn. So unless there is some extreme intelligence (unlikely) in this device it is up to the person that uses it to ensure that whatever load you plug into this modified PS it never consumes more that 24W, the device itself will not protect from such overload. So you have to be very cautious what you feed from the modified PS. Hope this makes sense :o)

این مدار در ولتاژ ۱۲ میتونه ۲آمپر جریان بده اما اگه والتاژ رو اضافه کنیم جریان کاهش پیدا می کند

Aí então terei que tirar o de 470uf 16v por um desse seu de 470 uf 50v certo

@Inventor_AW

Жыл бұрын

Você deve substituir o capacitor 470/16 pelo 470/50

Please explain how the screen was installed

@Inventor_AW

Жыл бұрын

Connect it in parallel with the output

Muito bom o prejdto queria fazer um quais componentes usa e tem que subistiur o capacitor eu tenho a fonte está com esse capacitor estufado 6.8 uf 400v

@Inventor_AW

Жыл бұрын

Desculpe-me .. eu não entendi o que você está dizendo

Genius🎉

@Inventor_AW

Жыл бұрын

thanks

Mi mandi lo schema elettrico?

@Inventor_AW

Жыл бұрын

È semplice e non ha bisogno di un piano, basta guardare attentamente il video

A fonte fica tamanho reduzido. É funcional, mas como toda fonte chaveada, é de baixa segurança. Quando queima o chaveador, a tensão sobe pra 170volts.

@Inventor_AW

Жыл бұрын

Com resistência constante, você não precisa se preocupar

@renansn28

Жыл бұрын

​@@Inventor_AW o que é resistência constante?

Pode me ajudar qual capacitor posso colocar no lugar desse estufadao e o outro tá bom ele e de 470 uf 16v

Было бы неплохо в описании указать ссылки на компоненты

@BigPigAss

Жыл бұрын

Да ешче на тарелачке принести тебе на стол. Человек старался все снять чтоб было видно, что за детали, а тут покажи где брал.

@littlepoison9632

Жыл бұрын

@@BigPigAss Расслабьтесь. Эта схема нерабочая.

@lexxkrt

Жыл бұрын

@@littlepoison9632 чем докажешь кроме своих слов, в видео показано что рабочая

@littlepoison9632

Жыл бұрын

@@lexxkrt На заборе тоже написано. Доказывать не буду. Потрать на этого шарлатана своё время.

@lexxkrt

Жыл бұрын

@@littlepoison9632 а причем тут забор? зашел пернуть так подтверждай свои слова. автор регулирует точку опорного напряжения на тл431, по фидбеку увеличивает широту импульсов, поэтому растет выходное напряжение. понятно что при напряжении выше 12 вольт 2 ампер не будет, надо трансформатор перематывать, но напряжение регулируется. по сути это и есть принцип регулировки напряжения даже в статичном блоке питания, можешь из любого 12 вольтового 5 вольт сделать выставив правильные резисторы в делителе напряжения, как и из 5 вольтового 12 вольт

I can use vearabil resister 470k

@Inventor_AW

Ай бұрын

yes

Дядя схему нарисуй

Success hai kya

and capacitor

@Inventor_AW

2 ай бұрын

you can use 1000uF-50V

潘多拉👍👍

Не слишком маленькая механическая прочность у выводов, соединённых каплей припоя? Или это просто конструктор , которым нельзя пользоваться? Разве переменный резистор не должен быть многооборотным?

@user-rk1el6vy9k

Жыл бұрын

Это капля припоя выдерживает 7 кг нагрузки.

@user-rk1el6vy9k

Жыл бұрын

Разве использованная переменка не малогабаритная? Хотя габариты переменки не имеет принципиально.

@hennadiiredco8859

Жыл бұрын

@@user-rk1el6vy9k Откуда такая информация? Приведите источник своих специальных знаний. Я давненько учился на "слесаря-сборщика РЭА", но помню, что "паяным соединениям противопоказаны механические нагрузки". Что-то изменилось с тех пор?

Супер👍

transistor number please

@Inventor_AW

2 ай бұрын

it's TL431

Muito show

แล้วคาปาค่าไม่เท่ากันทำได้หรือเปล่าครับ

@Inventor_AW

Жыл бұрын

no problem

Ни схемы подключения, ни разъяснений... о чём видео?

Я всё сделал точно также как на видео и у меня взорвался транзистор,так что это не грамотно показано, сначало нужно во всём разобраться и не подвергать людей риску смертельному,ради лайков,это жестоко.

😊 PЯӨMӨƧM

👍