ULiTv:
Components used for this project includes
.
1) 240v (9-0-9) transformer
2) 4 Diodes (no unit)
3) 1k/25v capacitor
4) 7805 transistor (regulator)
5) 0.1/25v capacitor
6) light emitting diodes (led)
7) USB port
a connection board
.
I first of all connected my four diodes in series, then my 1k/25v capacitor followed by transistor, 0.1/25v capacitor, light emitting diodes, USB port then my 240v transformer on the connection board, I read it with my meter and it gave me exactly 5v.
You can watch the video below

https://www.youtube.com/watch?v=zsBzQxNc0ng
.
Lalasticlala mynd44 seun Dominique how do rate this my small project

You need a current regulator otherwise you'll blow out your semi-conductors(diodes and transistors).

Alusiizizi:


You need a current regulator otherwise you'll blow out your semi-conductors(diodes and transistors).

Thermistors??


...

Godspihighlife:
Your charge big pass the phone oo

No na, is just 5v out! The voltage has already been regulated by those components.
.t
Thanks

Lalasticlala

ULiTv:
Components used for this project includes
.
1) 240v (9-0-9) transformer
2) 4 Diodes (no unit)
3) 1k/25v capacitor
4) 7805 transistor (regulator)
5) 0.1/25v capacitor
6) light emitting diodes (led)
7) USB port
a connection board
.
I first of all connected my four diodes in series, then my 1k/25v capacitor followed by transistor, 0.1/25v capacitor, light emitting diodes, USB port then my 240v transformer on the connection board, I read it with my meter and it gave me exactly 5v.
You can watch the video below

https://www.youtube.com/watch?v=zsBzQxNc0ng
.
Lalasticlala mynd44 seun Dominique how do rate this my small project

Also your diodes do have units, their reverse voltage must be more than 240V so that they can effectively block one half of that AC source in that full-wave rectifier on your board.

ULiTv:

for were! This one cannot kill even a rat, the voltage has already been reduced to minimal

Actually that does nothing. As soon as NEPA does their usual magic(over-voltage), the secondary coil receives too much power, burns out the semiconductors and maybe start a small fire.

Amazing. Keep it up

Alusiizizi:


Actually that does nothing. As soon as NEPA does their usual magic(over-voltage), the secondary coil receives too much power, burns out the semiconductors and maybe start a small fire.

That means it could be improvised into a cooking equipment if possible

Gift96:


That means it could be improvised into a cooking equipment if possible

Haha... how did you come up with this? Why are you guys like this?

@OP, this is amazing. I see you're also getting suggestions from others. Please, gather as much information as you can and do a beta version.

Are you a graduate of Engineering?

Keep it up man..its good.

WoundedLamb:


Haha... how did you come up with this? Why are you guys like this?

@OP, this is amazing. I see you're also getting suggestions from others. Please, gather as much information as you can and do a beta version.

Are you a graduate of Engineering?

Yes o, ogas at the top, is already given it to me hot! But I promise to improve more next time.
Thanks
.
Grad? Yes (elect/elect)

A good way to go, man.

No try em with better phone

ULiTv:
Components used for this project includes
.
1) 240v (9-0-9) transformer
2) 4 Diodes (no unit)
3) 1k/25v capacitor
4) 7805 transistor (regulator)
5) 0.1/25v capacitor
6) light emitting diodes (led)
7) USB port
a connection board
.
I first of all connected my four diodes in series, then my 1k/25v capacitor followed by transistor, 0.1/25v capacitor, light emitting diodes, USB port then my 240v transformer on the connection board, I read it with my meter and it gave me exactly 5v.
You can watch the video below

https://www.youtube.com/watch?v=zsBzQxNc0ng
.
How do rate this my small project?

What's so special about building phone chargers?

Comedy

ULiTv:
Components used for this project includes
.
1) 240v (9-0-9) transformer
2) 4 Diodes (no unit)
3) 1k/25v capacitor
4) 7805 transistor (regulator)
5) 0.1/25v capacitor
6) light emitting diodes (led)
7) USB port
a connection board
.
I first of all connected my four diodes in series, then my 1k/25v capacitor followed by transistor, 0.1/25v capacitor, light emitting diodes, USB port then my 240v transformer on the connection board, I read it with my meter and it gave me exactly 5v.
You can watch the video below

https://www.youtube.com/watch?v=zsBzQxNc0ng
.
How do rate this my small project?

Can it be cheaper than the ones in the market?

With this FG is supposed to ban the importation of all mobile phone chargers

E go well...

ULiTv:

.
Yes o, I am planning on doing that in the future.

I commend your efforts, keep it up bro. I see you going places

Nice one.

God bless you

ULiTv:

in fact that is what I am trying to build, in my next project.

Just because he managed to build one, person no go hear word again. The thing no even fine sef. Mtcheeeeeeeeew!

ULiTv:

.
Yes o, I am planning on doing that in the future.

What are you waiting? go look for way to package it once it can last up to 6 month to 1 year thats Made in Nigeria

All the packaging and the parts you will need are on ALI XPRESS which you can get at a very reasonable price

Be honest in your dealings and you will definetly achieve your aim.

This is Loudable.
WELDONE

What if our country had 24/7 power supply and access to credit...

ULiTv:

Thats not weste I can still dissemble it to build another circuit,
.
Thanks

I love your spirit, you are able to absolve criticism easily. GOD bless you.

Nigerians and bad mouth ehn, if you nor get heart these people fit make you abandon your dreams for life.

Enemyofpeace:
Just because he managed to build one, person no go hear word again. The thing no even fine sef. Mtcheeeeeeeeew!

Where your own?

You tried. But do you need that huge transformer?

Oh this is very nice.
Continue doing more research till you get there, don't be discouraged by negative comments .

Starzo:
Nigerians and bad mouth ehn, if you nor get heart these people fit make you abandon your dreams for life.

Anon4:
Can you make a laptop charger?

Same principle, step down 220v ac to 19v DC, but this current design using transformers as main power source tent to be less efficient than switch mode power supplies, but kudos for the effort.