another Q: molex to usb?

[tjpotato]

hi, im wondering if i can convert a male molex connector(from a psu) to a female usb connector and still get 5v. im making a test psu and i want to have usb testing capabilities for it. thanks. and also if it is possible, can anyone tell me how? lots of thanks.

[m4gnum]

Surely to know if the usb peripheral is working it'd need to go through a PC, not just straight to the power supply? Unless it was one of those cup warmers you can get.

[tjpotato]

actually i need it for my usb vacuum cleaner to clean my pc even if the pc is turned off(hence the test psu iam making, not the psu of the pc itself)

[DaveW]

I'm not sure if it's possible without some serious hacking and tweaking.

Please don't take this the wrong way, but the PSU is a very dangerous device to play around with, and you seem like you need to do a lot more research before you start.

Look up electronics on Wikipedia, then hit up some PSU guides. You're going to need a +5V and a -5V to get a USB calbe powered, and you only have a +5V on a Molex, unless i'm mistaken.

-Dave

[dgrmkrp]

hmm.. you wanna make a usb that connects to the psu directly.. why not? simply take a male molex and wire the red and black wires to the red and black wires in the usb cable, ignoring the white and green... use a spare usb cable and a spare adapter or molex or anything that fits.. :)

edit:
didn't see the post above.. timing :)
the usb uses just a +5V, no differetial power input, because you would get 10V.. and smoke :) or at least that's what my multimeter tells me..

[tjpotato]

hmmm, 2 contradicting posts above so a little confused... is there a go signal then? should i do it?

[dgrmkrp]

well.. davew is right.. without knowledge of how psus work.. things get dangerous.. study, read..
but still, it's as simple as taking the 2 wires and using them.. carefully :) of course, if you need the data wires :(... but if u don't :)

[tjpotato]

ok great! so although its dangerous to work with PSUs, its possible to do this convert. so thanks for the help guys, and for the go signal.

[DaveW]

and for the go signal.

We aren't giving you the go signal, we're not responsible in any way if you blow your arms off. I warned you against it.

-Dave

[gaz_the_chav]

We aren't giving you the go signal, we're not responsible in any way if you blow your arms off. I warned you against it.

-Dave

Hear Hear!

I don't want anyone to fight a legal battle against TBCS cos some youngen blows there arms off lol!

-gaz

[xmastree]

Dave, are you sure about +5V and -5V? I think the four connections are +5V, D+, D- and Ground.
It would be possible to make a 5V outlet in the form of a USB socket (if that's the idea) but I would strongly advise fitting a 500mA fuse in the +5V line. Use an automotive inline fuseholder.

And BE CAREFUL!


actually i need it for my usb vacuum cleanerDon't vacuum the insides, that's a good way to kill the motherboard. (static discharge)

[DaveW]

Dave, are you sure about +5V and -5V? I think the four connections are +5V, D+, D- and Ground.

No, I'm not 100% certain.

-Dave