iPhone 3G electric help

iCafe

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#1
Any electritions out here know if it is possible to splice a home iPhone charger and connect it to a 12v wire and ground in a car ?
 

psylichon

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Oct 31, 2007
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#2
It will require all different electronics for that power conversion. Can I ask why?
 

talon90

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#3
It will require all different electronics for that power conversion. Can I ask why?
I agree with psylichon. As I recall the USB 2.0 voltage spec is 4.75 to 5.25 VDC. You would need to transform the 12.0 VDC output from the car down to 5 VDC to avoid frying your iPhone.
 

The Apple

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#6
Electrition is a misspelled version of electrician. An electrician is one whose occupation is the installation, maintenance, repair, or operation of electric equipment and circuitry.
 

iCafe

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#8
LOL
titty dave are you serious with that car charger LOL
What I want to do is hide my wires behind the dash , and charge my iPhone 3g while getting video and audio to my indash

Now I am thinking of connecting a ciggarete lighter adapter to a 12v wire and grounding it behind the dash while using it for power with a powerjolt griffin and the USB from the Apple composite cable
 
Jun 19, 2007
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#9
Electrition is a misspelled version of electrician. An electrician is one whose occupation is the installation, maintenance, repair, or operation of electric equipment and circuitry.
Oh.

I thought it was some newly-discovered subatomic particle I wasn't aware of.
 

psylichon

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#10
LOL
titty dave are you serious with that car charger LOL
Just trying to save you from yourself. Folks who can't spell electrician probably shouldn't be playing with electricity. But by all means, knock yourself out with that gameplan there.
 

iCafe

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#11
I don't think my electrician can spell his name but he is a beast with wires
does no one know how to wire a iPhone usb cord to the car directly
 

Hawk

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#12
before going all out and tearing up a cord, take a look at this:
http://cablejive.com/chargeconverter.html
This is made to correct the problems with going from the firewire charging method to the USB2.0 that the 3G uses.
 

The Apple

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#13
You would not wire a usb cord direct to a cars voltage system. You have to regulate the dc from 12v to whatever voltage the iPhone charges at which is......5v 1 amp it looks like. If they don't market a direct wire in you would be best to "hack" a cigarette lighter plug in charger. I will see if I can find a good option for you and return, hopefully with some good news.
 

psylichon

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#14
Dude, seriously, take it in to someone who knows what the heck they're doing. Your dash and your iPhone will thank you for it.
 

The Apple

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#15
Don't let Dave make you scared. You can always install an accessory cigarette lighter socket behind the dash and plug in the regulator to that. Simple but not the cleanest setup.
 

psylichon

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#16
You're right. iCafe, you should definitely try this. And please, post pics of the process!
 

mittenman

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#17
Like everyone says, you cannot charge/power an iPhone off of a direct 12v source (bad things will happen). What exactly are you trying to achieve? Just want to be able to charge and have audio by just using the dock connector? What kind of aux input do you have on you head unit?