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Car Cigarette socket powered by Molex

GreenDayUnicorn
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Go to solution Solved by BondiBlue,

That's already a thing, but you'd need to be very careful about how much power you pull from it. I can't think of many situations where it would be very useful. What were you planning on using it for?

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So, I'm wanting to wire a car Cigarette lighter to a Molex 12v plug on my desktop psu. Will it work as normal, it would require any resistance or special circuitry like regulators or anything? It's a 650W psu, and only about 450-500W are being used total by my computer. Though, I'm currently turning a old 550W PSU into a bench DC PSU. 

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Posted

It has been done. As you can see here.
But would you really want that?

 

First thing i can think of is CPU and GPU is busy you press the lighter button and the whole system shuts down. hahahahaha

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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A car power outlet for what? Already sounds like a fire hazard. Be sure to fuse the line. 

 

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Posted
  • Solution

That's already a thing, but you'd need to be very careful about how much power you pull from it. I can't think of many situations where it would be very useful. What were you planning on using it for?

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If you really need it, i would suggest offering up its own PSU just for the lighter, so if anything happens the PC and its components are ok.

Because in essence a cigarette lighter makes a (altho high impedance) short.
Some PSU's might even go "hall naw" and shut down.

 

But besides that and it being a fire-risk, you might be in a very select group that wants this.

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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1 minute ago, ShrimpBrime said:

A car power outlet for what? Already sounds like a fire hazard. Be sure to fuse the line. 

 

Yup.

People have had coins get stuck in them causing an electrical short.

15 minutes ago, GreenDayUnicorn said:

So, I'm wanting to wire a car Cigarette lighter to a Molex 12v plug on my desktop psu.

That is like a 120 watt load.

Gaming With a 4:3 CRT

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1 minute ago, MadAnt250 said:

Yup.

People have had coins get stuck in them causing an electrical short.

That is like a 120 watt load.

It depends on the outlet also (I think) while I've seen automotive outlets fused 10, 15 and 20 amps, but generally not more than that.

 

Gotta read what the PSU rail can handle, see what your rig pulls and then what ever is left over, fuse the line. I'd only do 10a on a PSU like this. And wouldn't use a lighter for it either, I imagine it's for some nifty device like a blue tooth connection off one of those little FM broadcasters or something. I have one. It works like shit though. And I use it only in the car that still has a tape deck XD.

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