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Hacking ATX Power Supply?

OK, before going further, I need to inform you that we do not take responsibility on your safety andguarantee anything as this is hacking and it deal with AC power source. You will need to take your ownrisk and be careful with what you are doing.

Oh, you wanted a power supply that can give you A of !"# source$ %ut most of AC to &C adapter israted at "A or less only, higher current output will cost you a lot. 'ormally you might go for switching

power supply like this(

)ere is an alternative. *or armature hobbyist, they will hack the computer desktop power supply. Yup,it is actually a switching power supply dedicated for computer motherboard. You can buy it fromcomputer shop, I am pretty sure they have it on rack. +e are going to utili e it as the power source forour pro-ect and development. A / power supply, come with high current output and stable voltage. Ithas 0.0#, #, !"# and 1!"# 2you might not use it3. As you might have notice, !"# and # iscommonly use by embedded electronics to power microcontroller, stepper motor, &C motor, sensor,magnetic lock, you name it. 4et me leave the current rating at the back. 'ow if you go to +ikipediaand search for A /, which you will reach here, it actually e5plained 6uite comprehensive pin7outs andfeatures of this power supply. %ecause most motherboard will have standard connector, all A / powersupply must be compliant with this standard. You can hack it like this e5ample(

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%ut you will need to figure out the wirings and get yourself proper connector, not to forget the drillingof holes to mount the connectors. +orst is you cannot use back for computer once the connecters and

wires are cut and modified. 8ood for you that we have come out with a %reakout %oard for A / powersupply, it will enable you to utili e A / power supply in -ust !9 minutes of setup.

OK, get yourself these item(

!. A / :ower ;upply, you should be able to grab one from computer shop. I am not sure whetherCytron have it, but by the time I write this, we do not carry any". %%7A /;.

. AC :ower cord, most of A / power supply does not come with one, so you need to get it separately.?. ;crew driver, I am using = in ! screw driver set. You need one to open the A / power supply casingif you want to mount the %reakout board on it.

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'ow, test your A / power supply first before you hack it. If there is problem at least it is still underwarranty. I have two A / power supply in my lab. One is a bit old which I took from my colleaguedesktop computer(3. %%7A /

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8ood, if you like the 1!"#, go a head and measure it, I am getting around 1!!. 9#.

hese measurement prove the A / power supply and %%7A /

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Dsing 8reen erminal %lock

OK, now solder the preferable terminal to %%7A /

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Open the A / casing, this will void the warranty, do it at your own choice.

Eount the %%7A /

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I added a proper mounting at the back of A / power supply for the ease of carrying it.

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+oh(0.0# at "FA 2Ea53

# at 0!A 2Ea53B!"# at !FA 2Ea53

%ut do bare in mind that the %%7A /