220v to 12v without transformer
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- Опубликовано: 16 июл 2019
- Hello friends, today in this video I have shown how to make a 220v to 12v converter circuit. Please note, this circuit is not isolated from mains so don’t touch any naked wire in this circuit when the circuit is plugged in.
If you want to increase the brightness of the led use 10W led and 2.2uf ceramic capacitor in place of 1uf. This capacitor must be rated 400v or above.
Li-ion charger circuit using 1 transistor
• Simple li-ion 18650 ba...
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Li-ion charger circuit using 1 transistor
ruclips.net/video/DOdjxFPdJ38/видео.html
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Bhi es board sa kitna light ko jala paya ga???
ทำแบบนี้ได้พลังงานกี่ w ครับผม
can it also be used on the contrary?
@@pankajgaming723 no
WOW! I saw this circuit in a book from the late 60's. I used it to replace the light bulb in my parents' fridge 20-ish years ago. The "light bulb" was salvaged when the old fridge was discarded and now is installed in a night light lamp. No houses on fire until now...
Looks like I have stumbled upon an ancient knowledge... gotta have more..
@@leonelbarrientos995 xD
Thanks for the video clip but if you had used a multimeter to show the output it would have been complete. Now, please tell me how much Amp current it will output?
When using diodes with shorter than original lead length, you MUST reduce current rating of the diode, per Sylvania ECG Engineering staff. Solder should be applied to the joint, not put on the iron and transferred to the joint. That circuit should have a fuse in it also. Very dangerous construction to use it that way. We often use a capacitor of a certain size to reduce AC voltage input to antique radios that originally had resistance line cords.
Buen video ....una pregunta si el led fuera de 36 voltiis y 100 watts que tendria que cambiar de los componentes..gracias
I've been using simplified version as mains indicator. just with small red led (like 2 mA current) and although it's nice little circuit, with justified use in some cases, I wouldn't recommend it to people without experience. it's really dangerous, and you should know the necessary precautions to use it..
Superb DIY
Comment after making and using this kind.
Best 👍
Thanks for this tech idea bro👍
Cómo puedo calcular el voltaje de Salida depende del capacitor cerámico o del condensador electrolítico.
Very useful nice circuit . Thanks for presenting.
Two bottom side diodes of the bridge should be 27 V /1.3 W zener. There must be a 100 Ohms 2 Watts resistor serie connected to 1uF capacitor. This capacitor should be rated to 400V AC at least and type X2 (ask your component dealer) Otherwise you get a very good explosion after a short while.
This circuit was used in the past even by Siemens for space constrainted applications. It is stil used by some Chinese and Indian manufacturers in cheap LED bulbs. Even there is an IC which utilizes this configuration. And yes, their lifetime is very short
Mantap bossqu.. 🤝🏼 👍 Sukses selalu
Gracias por sus vídeos nos ayudan mucho .quería regular la corriente de una moto que tira aprox 90 voltios en ca y quería bajarla a 12 o 14 voltios pero en cc para que el pito suene bien y no se dañe .le agradezco su gran ayuda .Tomás de costa rica
can i connect the 220v side to an air blower and the 12v side to motor battery
Por fin un video donde muestra paso a paso con las referencia y coneciones de los materiales felicitaciones...excelente
Nada mas un favor que se vean bien los valores de los elementos o circuitos que usas y gracias por compartir
I don't see you add any solder, how is that? Does that soldering iron add it where I can't see it, or did you edit that out?
What is the component rate for variable 0-15v 5a ?
Sir, very nice. Sir, what is the value of resistor 100 ohms ? Watt how much.
what is Ampere Out ?
Nice,
But please make a video
How ceramic capacitor convert
220v -12v mechanism clearly
Very good Many casual do circuit videos and handle ac current casual holding it.its a bad think.kids watch.they will be misguided.ur good in informing and putting a tester to show the live current.well done
Bu yaptığın proje 12v adaptör karanlıklarında sakinca varmı bir uyduyu çalıştırırsan uydu bozulur mu teşekurler
Very good idea.Thanks
GRACIAS FUNCIONA MUY BIEN UN FUERTE ABRAZO
Yes, I use this chem too, and it may be works many years.
What's the current that can carry this circuit?
Observação: neste circuito não ocorre o efeito de *isolamento* da rede elétrica como ocorre com o uso de transformadores.
Sir instead of 25v 220uf can we use 25v 2200uf ( 2amps) and was it risky without zener diode?
Very interesting thing, you are "capos" in electronic!!!!
Mere pass 3 volt ka 12 leds hay series may laga huva hay. Muje 36 volt dc ke liye kithna value ka capacitor lagana padega
How to do the same with 100.w Led?
Boss transformer less ac to dc supply system ke liye kiteney Amperage ka hoga. Or agar 3amper la transformer less supply banaye. Amperage keyse bara saktey hain.please guide and advice.
whats the name of the square LED? I Wanted ro replace my LED projector with brighter ones.thanks.
SMD LED
You are so amazing creator
nice video sir
Dear what is maximum current of this circuit and how many led can glow on this circuit?
It depends on the capacitance and frequency. From capacitance and frequency you calculate reactance. And Ohm's Law will then tell you the maximum power possible. 1 uF on a 220V 50 Hz mains system will give a reactance of 3183 ohm. And with 220V that limits the power to 69 mA.
good job. hello from Turkey.
Welcome bro
Merhaba 🙂
Liked it. An inexpensive, practical solution that could be used to power other low voltage projects too.
It's neither inexpensive nor practical, unless you're stealing your AC power and don't care how much power you waste. There is a reason that even the cheapest power adapter uses a transformer. Take a basic circuits 101 class if you're actually interested in learning something.
I wouldn't bet on it.
Thanks!
Can we used this to trigger 12v relay..
Ten zasilacz daje prąd około 120mA, czyli około 10 razy mniejszy niż prąd nominalny diody LED. Moc to 1W zamiast 10W.
output ke dc volt?.output take shok laga?
Przy wewnętrznym zwarciu w kondensatorze 1uF, a także przy przepaleniu LED, wybuchnie kondensator 220uF, od zbyt wysokiego napięcia na jego końcówkach (powinien być na napięcie przynajmniej 400V). Zalecam szczególną ostrożność z tym wynalazkiem...
thanks for video
And should use one 12 volt 1 watt zenner diod parallel.
Not with the led they shouldn't. Any other circuit I would agree but definitely not with the led.
@@lazyh-online4839 Why we do not need it with the LED? How the O/P voltage is 12V now?
@@tubfragr2270 because led require a current controlled power supply, not a voltage controlled. The "resistance" of an LED is highly dependent upon temperature, the hotter it gets the less resistance it has which means more power flows through it which means it gets hotter which means it resists less, more power, hotter, resists less, more power, hotter, on and on. It's a runaway effect until the led blows up or dies, so controlling voltage doesn't do anything for an led, so a zener is pretty useless. Also a zener of that size wouldn't work for those power levels anyways.
A capacitor can only be charged up a certain amount for a given voltage, after that the capacitor is "full" so the cap can't pass more current than it can store for each cycle, this current limiting is how the led doesn't overheat like if it was getting constant voltage like a zener would do.
@@tubfragr2270 also, most leds like this have a 32v forward voltage, so a 12v zener wouldn't even be enough anyways.
@@lazyh-online4839 But what limits the current here then?
Третья рука креативная! Клево👍
Nice to see
Sir Jada watt ka bulb hoga to kitane ka PF. Or. capacitor or resistance lagaye bataye ex. 23 ,27,watt ka bulb
Why to be used that capacitor before full bridge rectifier?if that reason is for limited curent?,why not only to be used by resistor without capacitor?
Can I make this without diode rectifier ?
So I can make voltage doubler and get double voltage in dc
the rectifier is the the thing that turn ac to dc you can’t remove it
will this resistor hold the current without burning ?
Yes, it's 1 Mega ohms
iss circuit se kya 5w ka output niklega?
I tried arc welding with this circuit thank God for gloves and good face protection.
Not the brightest move there buddy.
Does the capacitor needs AC phase i/p ? Or it will works in Neutral also.
It also works in neuteral
Bhai kya HM 400 v cbb21tk 335j use kr sakte hain
Can you test it on multimeter?
Amp. Kitne h ?? DC 12V. 555 motor run ho jayegi kya Bhai. Plz reply ??
Maine banaya hain magar volt kam aaraha hain kya galat hain Maine yeh component use kiya hain = 4007 diodes, capacitor 25v 470uf, 1 k ohm, 105j 400v
sorry, I'm a beginner. I've tried this circuit but why is the 220uf 25 volt capacitor in just 3 seconds and it's very hot... and the DC output is electrocuted... is this circuit safe to use? Thank you in advance, best wishes for success, please guide me.
Wow nice to video
One question , this circuit is ,, how many volts ac or dc 12volts tell
the output voltage depend of power of led and serial capacitor value
mükemmel yaptım oldu teşekkür ederim çok aramıştım
Hala devre çalışıyor mu ?
Рассаду отлично досвечивает.
Конопли?
Bahut achha hai sir
very useful circuit
You are not informing with positive and negetive. I do and blast it💥💥
Ese 6 v.dc me banti hai kya ?
15 watt LED bulb ke liye kaun sa PF use Karen
Bhai isse led lamp charge ho jaygi kya?......
Why i was getting 4.23 v output ?
And my i was getting reverse current from circuit means -from + and +from - terminal plz help 😢😢
@@kamranheidary173 yes bro
Sir please tell me can I use this circuit and run my 12 volt DC motor ?????
Is this circuit can glow DC 12 v 10 watt led?
Lo he hecho y todo bien pero no se que tiempo de vida le de al led
Se puede usar un diodo zener de 12 voltios a la salida, para estabilizar el voltaje
Victor correcto, el voltage de salida es muy alto.
Yes,or a 7812 with heat sink
What about 220v to 120v a.c
What value to be used?
Manh thanks.
What is the watts of ceramic cap
What is about voltage régulateur.
It's a good project.
Thanking you for giving this idea.
What's the heat output?
Can i use this on 10A motor?
Kya hum isko bike me laga sakte hai overvolt aa raha hai bike se
Sir mujhe 1.2v ki motor ko 220 v se chalana bataiye kayse chale gii
Can you give me info on how to make with 120V AC? Thank you !!!
Use cap 2ucF.
@@Perepodvyvert_s_perevorotom - THANK YOU !!!
But 2ucF *ONLY* for the led shown in this video!
If you want to connect another load - use the online calculator for transformer-free (transformerless) power supply.
@@Perepodvyvert_s_perevorotom - Thank you !!! ❤️❤️❤️❤️❤️❤️❤️
Thanks a lot.
superb
Many young radio amateurs who will try to repeat this electric circuit will be killed!)))
How do you think is it that Resistor was reducing 220v AC down to 12v AC or something else...???
How many ampere is the output? can be use in audio power amplifiers?
Not at all
Good, nice to greet you. Your video is very good. Friend could give me the idea of how to make a spark to light gas conina. If you have a plan with its elements. I would appreciate it. regards
Colombia presente.............
kya ham 4w led use kar sakte hai
Sir please bolen aita diye ki 12 volt ar DC motor chalano jabe ???
good vedio bro
1 마이크로패럿 콘덴서 가 중요 하네요 변압기없이 한다는게 무게를줄이는것 좋치만 절연에는 치명적 입니다
is se 12 dc fan chala sakte hian ?
I thought it was a dangerous circuit.
If the LED is disconnected or misconnected, it will destroy the electrolytic capacitor
Yep, and with the led he doesn't even need the cap there in the first place since our eyes would filter out the majority of the flicker.
mast bhai
Can you give a high voltage out put diagrams ?
there is no high voltage output, the voltage is shut down by serial capacitor
How many amps?