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Picture of DIY SOLAR USB/5 V SUPPLY
This is a simple project to get a power supply or charger for most of the usb devices or cell phones .

I used a 18 volts solar panel , though many people here will recomend you to use 9 volts solar panel
Advantage of 18volts panel is that you will get the voltage and required charging current even in the dim light ,(if you use smaller voltage panels , though you get voltage , the current may be too less)


Step 1: CIRCUIT DIAG

Picture of CIRCUIT DIAG
BEST AND EASIES WAY TO HAVE T REGULATED 5 VOLTS , IS TO USE A CHEAP 7805 VOLT REG 
 
shortw11 months ago

And how is this hooked up to a usb port ?

Errol19511 year ago

Hi

I am interested in building this do you mean 10uf or 10mf or are they interchangeable

BLR_RAVI (author)  Errol19511 year ago
its 10micro...electrolytic cap ..35volts...even higher cap like 100micro will be ok
Igor221 year ago

I have a 7805CT,can i use it for this project?

BLR_RAVI (author)  Igor221 year ago
YES , any ic with 78xx can be used