DC Voltage Doubler Circuit

[umerhuzaifa]

assalamualaekum! everybody,

A nice group..:smile:
i am working on a usb mobile charger.It was easy had i required only a 5V supply to charge my thing but it turned out that its charger actually gave something around 8V so i need to have a supply of around this value "out of 5V of USB".I think 10V will also do.(kindly guide if not).
Can anyone please share any dc multiplier circuit..?

 

[Raza]

Walaikam salam
The DC Voltage can not be doubled. It needs atleast pulsating DC if not AC. If it was delivering 5 volts earlier and now it is givig 8 voltas then the control circuitry inside the charger is gone bad. If you put up a clear picture of the same of the PCB I may help you to fix it.

 

[abdulmakhdoom]

Sometimes charger give us 6volt but 8v is not possible.Thats the internal circuitry error.

 

[edgoulart]

Salam aleekum
I also would like very much to see how your schematic looks like, umerhuzaifa; can you post an image of it here?
Ed Goulart