При подключении низковольтной нагрузки будет бросок напряжения около 300 вольт, поэтому сначала подключить нагрузку, а потом к сети 220. Иначе будет катастрофа.😊
It is worth noting that this circuit does not provide any isolation from the 230V AC supply which means if you touch any part of the circuit when energised you could receive an extremely painful and dangerous shock from it. Remember that Neutral and Line connections are not guaranteed to be any particular way around. Only use capacitor dropper circuits if you are absolutely sure there is no possibility of anyone coming into contact with any part of the circuit.
@@saddle1940 Yeah, I came here to say basically the same thing. Firstly, this circuit is not something that electronics beginners should be encouraged to build. If you're learning electronics off UA-cam videos there's a good chance you're not aware of how to safely handle mains voltages... and what's worse, the way it's built in the video shows a complete disregard for even the most basic safety precautions. Secondly, the version of this circuit shown is a downright dangerous design: there is no fuse, no isolation, no earthing, no enclosure and if that 1/4W carbon film resistor fails it will pass mains voltage to the output.
this is call CAPACITIVE DROPPER CIRCUIT drop the ac voltage at around 35vac.....and convert to dc using bridge diode...commonly use on ac220 RF remote controller for 5vdc receiver and 12vdc relay ....small current and cost effective
@@wasimshaikh6896 you cant run 12watt led bulb on it due to flickering but if you increase its voltage capacity then it might run. An example for u is that replace its capacitor with another value such as 4.2uf or so with 400V then it might work on 12 watt led bulb. Rest u can do the math. Or look for another circuit that u test ur self. I found many fake circuits on youtube. For small load like 10mm led it will work perfect.
Sir, hello, I did the same as this circuit, the led bulb works very nicely, but it lights up dim, when I measure, 0.20 ma current comes to the leds, what resistance do we need to lower to increase it a little more?
not from this project alone. the only possible way is to have the required end current be less than the forward current of the last led in the chain. and the same for the led before that, and the led before that.. etc etc..and so, basically, you need a resistor for each led, which kind of reduces the effectiveness of the project.
@Creative Techos, what is the minimum and maximum DC voltage output and rated current for this project and how to increas the current and volatge ratings? thanks
the smaller the capacitor the greater the current? does not make sense. I found something interesting, it might help you too, because you seem lost like me. hahaha
Can you please make a video on how to make a 0 to 15 volt variable transformer less power supply. I would really appreciate if you could do that since i have a project on it.
Bạn có thể hướng dẩn cách đấu các linh kiện để tăng áp từ 6 vol DC lấy nguồn từ đèn phòng cháy chửa cháy hiệu kentom ra auto vol DC ,giúp dùm nha ,cám ơn bạn
Ters voltaj ver bakalım ne oluyor görelim. Her led öyle sıfır değil ve kutupları belirsiz. O yüzden ters voltaj verince de bozmaması gerek. Bu devre ise ters voltajla ledleri bozar.
Learning purpose is ok if you use it on a regular basis, then not useful. After some time, the capacitor and resistor both lose value of current, then the first resistor defuse, then the capacitor blasts. Many times I try this type of circuit for LED series lights, and every time the same issue comes out. Not useful for long 1 or 2 hours
Pero no habra mayor capacitancia? recordando que el transformador al ser inductancia con la capacitancia se logra tener lo mas cercano al angulo 0 o de componentes resistivos....😶🌫️ Habra mucho Q, mas energia no efectiva
Yes it works BUT, and it is a B I G BUT, potentially lethal! Users should use GREAT caution with such circuits to ENSURE that the output is never exposed to external connections. ALWAYS fully enclose all the components inside an insulated case and use great care when modifying, servicing or otherwise having direct access. Use with external LED strings is HIGHLY inadvisable ... Use a fully isolated supply instead ... A switched mode constant current supply found inside mains LED bulbs is a FAR safer option. 🤔🙄
If the 220 ohm resistor is connected to the "live" side of the electrical outlet, this circuit is going to give you a nasty shock. Please don't spread false information which can be dangerous for experimenters.
trước có dùng cho 70 bóng led 3.3v nối tiếp, thấy rất ok, mình còn cho nó nháy nữa bền lắm
Không tin =))
vc usou esse circuito mostrado no video?
При подключении низковольтной нагрузки будет бросок напряжения около 300 вольт, поэтому сначала подключить нагрузку, а потом к сети 220. Иначе будет катастрофа.😊
Откуда возьмётся бросок 300вольт, если конденсатор запараллелен сопротивлением? Зачем запугивать? Мы хоть и дурны, но разобраться сможем...
@@Лель-Полель Будет!
There is a difference between the diagram (C26-100uF) and the assembly (10uF-400V)
It is worth noting that this circuit does not provide any isolation from the 230V AC supply which means if you touch any part of the circuit when energised you could receive an extremely painful and dangerous shock from it. Remember that Neutral and Line connections are not guaranteed to be any particular way around. Only use capacitor dropper circuits if you are absolutely sure there is no possibility of anyone coming into contact with any part of the circuit.
And you should never drop high voltage across a single carbon 1/4 watt resistor. Use at least one in series per hundres volts.
@@saddle1940 Yeah, I came here to say basically the same thing.
Firstly, this circuit is not something that electronics beginners should be encouraged to build. If you're learning electronics off UA-cam videos there's a good chance you're not aware of how to safely handle mains voltages... and what's worse, the way it's built in the video shows a complete disregard for even the most basic safety precautions.
Secondly, the version of this circuit shown is a downright dangerous design: there is no fuse, no isolation, no earthing, no enclosure and if that 1/4W carbon film resistor fails it will pass mains voltage to the output.
this is call CAPACITIVE DROPPER CIRCUIT drop the ac voltage at around 35vac.....and convert to dc using bridge diode...commonly use on ac220 RF remote controller for 5vdc receiver and 12vdc relay ....small current and cost effective
Hola. Las resistencias tendran duracion si el circuito se deja conectado por tiempo prolongado? O seria mejor de mayor wataje?
Bạn hảy làm và gắn thêm có đóng hồ hiển thị vol và ampe luôn nha ,cám ơn bạn
Perfect and clean design for various purposes.i Tested it myself and found it legit ❤
how much current you can draw from it?
pls test & reply
@@wasimshaikh6896 you cant run 12watt led bulb on it due to flickering but if you increase its voltage capacity then it might run. An example for u is that replace its capacitor with another value such as 4.2uf or so with 400V then it might work on 12 watt led bulb. Rest u can do the math. Or look for another circuit that u test ur self. I found many fake circuits on youtube. For small load like 10mm led it will work perfect.
@@Fire-Bug 12 watts = 12 v x 1A. Can it charge a battery (eg 6 hours)?
Parabéns o projeto e bem interesante, obrigado.
Хороший тестер. Спасибо большое )))
Great idea. Do you have simple circuit for usb soldering iron without overheating on the diode or resistor ?
Gunakan trafo step down ,agat tidak kena kejutan listrik 220 volt.
Резистор на 330 Ом, пришлось заменить на 1 кОм , не понятно почему, начали перегорать диоды при обратной полярность. Все детали целые.
This circuit supplied with 120vac is only outputting 8vdc while I need close to 36-38vdc to properly illuminate my 4' led shop light. Any ideas?
Makasih atas ilmunya Bang
Sama2 dek..
Sir, hello, I did the same as this circuit, the led bulb works very nicely, but it lights up dim, when I measure, 0.20 ma current comes to the leds, what resistance do we need to lower to increase it a little more?
Thank you, l like this circuit its clear and easy. Give us more
Thanks you sir
Sir how to make a inverter board when power cuff
automatically inverter board will on with battery cutoff
Can we get two different output voltages at a time ?
not from this project alone. the only possible way is to have the required end current be less than the forward current of the last led in the chain. and the same for the led before that, and the led before that.. etc etc..and so, basically, you need a resistor for each led, which kind of reduces the effectiveness of the project.
@@Palmit_can i add voltmeter&eremeter for this?
First show circuit then we understand before start practical what is it - what we are going to do - madhawa from sri lanka
Thankyou good ... ❤
Can I use 110v AC, if not, what are the components I should replace?
Good. Please design transformerless power supply using 78 series voltage regulators.
Teria o Esquema e os componentes para fazer em 127 Volts, ou funciona nos dois tipos de Rede 127/ 220 Volts ???
Thank you Sir, What is the maximum current this circuit can draw?????
Es bueno pero si conectas el diodo led al revés imagino que de una vez se quema. Tienes siempre que saber la polaridad.
@Creative Techos, what is the minimum and maximum DC voltage output and rated current for this project and how to increas the current and volatge ratings? thanks
Genial y para 120 volt AC como sería.
Put resistors to half the value on 220 ohms and 330 ohms make them 120 ohms and 170 ohms
@@luisencarnacioncisnerosara854C:105J？
What is the maximum current of the circuit?
Amperes=Voltage/Capacitance
the smaller the capacitor the greater the current? does not make sense. I found something interesting, it might help you too, because you seem lost like me. hahaha
C26 is 105 (10^5x10^-12=> 10^(-12+5) => 10^-7 => 1^-6 1 uF.
Xc=1/(2*pi*50*1*10^-6) = 3.184 ohm
Max current: (220-0.7*2)/(3184+220+330)= 58 mA rms
Thank You
Sipp , thanks
The same work reduces the current of 220 v ac to the smallest possible value ac
tank you,i like this
Can you please make a video on how to make a 0 to 15 volt variable transformer less power supply. I would really appreciate if you could do that since i have a project on it.
Is it 10uf or 100uf e.capacitor ? Confused.
O 5:34
Thankyou brother
Very nice
How to make 220 v ac to 6 v dc for 100 led bulbs ( 6.2 v bulbs) what components are used
Good your idea❤❤❤❤
More than one device can be connected to this source? Thank You
Bạn có thể hướng dẩn cách đấu các linh kiện để tăng áp từ 6 vol DC lấy nguồn từ đèn phòng cháy chửa cháy hiệu kentom ra auto vol DC ,giúp dùm nha ,cám ơn bạn
Your videos are great. Can u make a video for making a hand held photography light. They are quite expensive. If possible.pls.
dioda 1 ampere tak akan mampu beban besar.
КПД такого преобразователя выше крыши.
Can we operate an usb module from this supply
No , no
Great👍
It is required to test the spark plug, power input 12 v dc
Klo untuk ngcas hp atau yg lain nya bisa ga min?
May i use 470 ohm instead of 330 ohm
Yes, you can use
المكثف 10/250 و في الفيديو 10/400v
thank you .its very usefull
边听边工作
Ters voltaj ver bakalım ne oluyor görelim. Her led öyle sıfır değil ve kutupları belirsiz.
O yüzden ters voltaj verince de bozmaması gerek.
Bu devre ise ters voltajla ledleri bozar.
No, it does not destroy
Bro kalau R 330 di ganti sama 470 bisa tidak ??
Yes.😎👍
Does this supply apply voltage automatic to inject voltage into the components?
Caríssimo, eu sou de Pernambuco Brasil, passe a relação dos componentes principalmente o capacitor grande.
After few minutes circuit will burn.
ok عالی بود
Mantap
Learning purpose is ok if you use it on a regular basis, then not useful. After some time, the capacitor and resistor both lose value of current, then the first resistor defuse, then the capacitor blasts. Many times I try this type of circuit for LED series lights, and every time the same issue comes out. Not useful for long 1 or 2 hours
What do you use if you've got 120 volt to
Mạch nầy xài cho đèn led 70 được không bạn ,cám ơn
Vol
Is it input 220vac?
quelle intensité 0.1A ?????????????????????????
Weldon, can i do it to charge lithium battery?
good😊😊
Pero no habra mayor capacitancia? recordando que el transformador al ser inductancia con la capacitancia se logra tener lo mas cercano al angulo 0 o de componentes resistivos....😶🌫️
Habra mucho Q, mas energia no efectiva
Legal. O que mudo para 127v AC?
Nothing.
Wow❤ can you give me pls bench power supply DC 100V adjustable Volume thank you
If I want the output power to be 2000w, how do I change the components?
This is a GREAT Step Down circuit. However, Can you please provide the maximum output in watts , that it can handle? Thanks. 🤔
How much ampere out put
👍👍👍👍👍👍
Is there a product like this made I need 60v reduced to 36v help me find please thanks
podia ser mais explicito nas cores do condensador..+...- e nos diodos..
What about to connect a volt meter accross the load ?
This is great!
Yes it works BUT, and it is a B I G BUT, potentially lethal! Users should use GREAT caution with such circuits to ENSURE that the output is never exposed to external connections. ALWAYS fully enclose all the components inside an insulated case and use great care when modifying, servicing or otherwise having direct access. Use with external LED strings is HIGHLY inadvisable ... Use a fully isolated supply instead ... A switched mode constant current supply found inside mains LED bulbs is a FAR safer option. 🤔🙄
How much high amp? Please
Why did you not show the entire connection from the source voltage of 220 vac to the rectifier input?
90 v bhi out put hoga kaya ??
So nice sir God bless you and your team 👍💗
It is producing heat. Not suitable for led bulbs when using as a driver circuit.
Can this charge 12v bike battery
nice circuit
Board ke indicator ke liye sahi hai👍
سلام. سوال. اینکه. انتخاب. خروجی. چگونه. ممکن. است بنظر. مدار. کامل. طراحی نشده. لطفاً. توضیح. دهید
Like from Brasil 🇧🇷🇧🇷🇧🇷👍👍👍
Please share the 500 Watts Dc to Ac 220v ckt
how to adding digital volt meter mini ? 😊 thanks
Good Work.
Không có điện trở 1M ,dùng điện trở 1M,2 được không bạn
இரண்டு(வயர்) கணெக்ஷனில்
எப்படி 3..12 90 க்கு எடுப்பது என்று தெரியவில்லை
If the 220 ohm resistor is connected to the "live" side of the electrical outlet, this circuit is going to give you a nasty shock. Please don't spread false information which can be dangerous for experimenters.
I think the same way. But there is a shunt resistor 1mega ohm. Some how it works.
Електроліт на 250В то замало, після діодного моста, без led, на ньму буде 310В, і як результат великий bada-bum.
How is this suppose to have different voltages? I don't trust this design.
What about 120v us voltage.
Doesn't it stun?
How can I know how much power the capacitor or this circuit can handle??
How if I want to add voltmeter ? 🙏