Hobby Electronics Basics Connection Car Radio to a computer Power Supply ?

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Subject Author Date
Connection Car Radio to a computer Power Supply ? nemzaroth 10-28-06
Posted by on October 28, 2006, 11:47 am
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Hey !

I'm trying to do that thing and I don't even know if it is possible ...
Powering a car radio with a computer power supply ?

- The Radio is powered by those :
http://membres.lycos.fr/menusia/radio/DSC00796.JPG

- Power Source from the 'inside' ( Sorry, not very clear )
http://membres.lycos.fr/menusia/radio/DSC00797.JPG

For 1 Connector :
"its actually 3 pins in the middle (white), and 2 X 2 pins on both
sides ( left and right, gray or black plastic) "


- Power Supply main wires ( the ones used to power the motherboard )
http://membres.lycos.fr/menusia/radio/DSC00798.JPG



I have no idea if I can achieve this, any ideas/tips/how to would be
appreciated !
If I need to provide more pictures, I will do so .. !

Thanks,

Nem


Posted by atec77 on October 28, 2006, 12:09 pm
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nemzaroth@gmail.com wrote:
> Hey !
>
> I'm trying to do that thing and I don't even know if it is possible ...
> Powering a car radio with a computer power supply ?
>
> - The Radio is powered by those :
> http://membres.lycos.fr/menusia/radio/DSC00796.JPG
>
> - Power Source from the 'inside' ( Sorry, not very clear )
> http://membres.lycos.fr/menusia/radio/DSC00797.JPG
>
> For 1 Connector :
> "its actually 3 pins in the middle (white), and 2 X 2 pins on both
> sides ( left and right, gray or black plastic) "
>
>
> - Power Supply main wires ( the ones used to power the motherboard )
> http://membres.lycos.fr/menusia/radio/DSC00798.JPG
>
>
>
> I have no idea if I can achieve this, any ideas/tips/how to would be
> appreciated !
> If I need to provide more pictures, I will do so .. !
>
> Thanks,
>
> Nem
>
It's very possible of you have some electronics knowledge , otehr wise
go buy a switch mode supply from a Ham supply shop , if don't have
knowledge and experience those switch modes can kill you as the
internal voltages are lethal.

Posted by Michael Black on October 28, 2006, 12:50 pm
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atec77 (""atec77 \"@ hotmail.com") writes:
> nemzaroth@gmail.com wrote:
>> Hey !
>>
>> I'm trying to do that thing and I don't even know if it is possible ...
>> Powering a car radio with a computer power supply ?
>>
>> - The Radio is powered by those :
>> http://membres.lycos.fr/menusia/radio/DSC00796.JPG
>>
>> - Power Source from the 'inside' ( Sorry, not very clear )
>> http://membres.lycos.fr/menusia/radio/DSC00797.JPG
>>
>> For 1 Connector :
>> "its actually 3 pins in the middle (white), and 2 X 2 pins on both
>> sides ( left and right, gray or black plastic) "
>>
>>
>> - Power Supply main wires ( the ones used to power the motherboard )
>> http://membres.lycos.fr/menusia/radio/DSC00798.JPG
>>
>>
>>
>> I have no idea if I can achieve this, any ideas/tips/how to would be
>> appreciated !
>> If I need to provide more pictures, I will do so .. !
>>
>> Thanks,
>>
>> Nem
>>
> It's very possible of you have some electronics knowledge , otehr wise
> go buy a switch mode supply from a Ham supply shop , if don't have
> knowledge and experience those switch modes can kill you as the
> internal voltages are lethal.

No.

There is absolutely no reason to run the car radio off a switching
supply. The radio will not require that much current. The power
supply will generate noise, which may affect reception. The power
supply may not even work until you start loading it down, because
they expect a current drain that is higher than the radio needs.

A switching supply is overkill.

The poster can build or buy a cheap linear power supply, and that
will supply enough current without any issues.

ANd by the way, the lethal voltages in a switching supply stay in
the box. They will never be seen unless the guy has to repair
them. He will never have to open the box if he is trying to use
it to run something.

Michael


Posted by Homer J Simpson on October 28, 2006, 12:14 pm
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> I'm trying to do that thing and I don't even know if it is possible ...
> Powering a car radio with a computer power supply ?

Most AT power supplies have 12 VDC output - maybe enough to run a car radio.







Posted by jasen on October 28, 2006, 9:26 pm
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> Hey !
>
> I'm trying to do that thing and I don't even know if it is possible ...
> Powering a car radio with a computer power supply ?

yes, probably.

> I have no idea if I can achieve this, any ideas/tips/how to would be
> appreciated !
> If I need to provide more pictures, I will do so .. !

I've not looked at the pictures, but assuming it's a stabdard ATX powersupply

the yellow wire is 12V the black is ground, connect the green wire on the
motherboard connector to the black wire to make the powersupply run.

If the radio has a clock or "station presets" or an "anti-theft system"
it'll want to have the powersupply running all the time which could prove
annoying.

good luck.

Bye.
Jasen

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