DIY Car Charger - Is It Possible?


Thread Starter #1
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Hi TAI'ns
I got a usb car charger with my Galaxy S2

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I have a usb cable of a laptop cooling fan

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My query is can i use the car charger connected with the 5 in 1 cable:stupid:
 
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Re: DIY:Car Charger-Is It Possible

yes, of course,

just connect both wires of charger pin cord to USB cable.

IMO USB cable will have only two cables as it is for cooling fan.
 
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Re: DIY:Car Charger-Is It Possible

I think it is better to buy a multi car charger for Rs.250 odd and don't try anything serious on your costly mobiles. [;)]
 
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May did not understand your query but if you have a ready USB charger as per picture no.1 why do you want to experiment with a 5 in 1. All you need is a spare male/female spare cable which you can hook into your usb car charger and the phone.
 
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I also wanted to do a charger which can charge any device connected to it.

So bought a compact car charger, but it doesn't charge all the device via USB! It charged my old sony ericsson mobile, but failed to charge my samsung mobile.[confused]

Later found out after googling that there is more to it than just connecting the +ve and gnd wires. There are some combinations of pull up resistors and pull downs as shown below, on the D+ and D-.

usb-charger.jpg

These resistor combo, which is present in the charger need to be connected to the mobile phone or whatever which needs to be charged.

It is by this the charger advertise the power supply capacity to the to be charged device (i.e. mobile phones).
 
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