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PS2 V5/V7 Power Supply 12V out - Max I
PS2 V5/V7 Power Supply 12V out - Max I –
I have been given a LCD PC monitor that has had it's power pack die which the previous owner has thrown out. But however the monitor has a lable above it's power input connector indicating it requires a 12VDC 4 Amp supply. The only thing I have lying around the workshop that might fit the need is a few PS2 power supplies mainly from V3 and V5/V7 PS2 consoles.
My question is does anyone happen to know what sort of current that these supplies can handle on the 12v output?
Failing this I will have to check myself.
I think it's watts/volts = amps. So those PSU are around 75w(v9/v10 are 93w).
so... 75/12=6.25amps. Should work fine, tryit.
Also, someone with real electrical knowledge might answer for you too.
ZaTHRaS - your right. P/V=I.
So if they're rated at 75w it should work fine. Also although the power supply required for the monitor is rated at 4A it will most likely require a lot less so I dont forsee any problems.
Another alternative is to use a old computer power supply if you have any spare floating around.
Thanks for your input
Yes it is I=P/V. I had already did a quick calculation earlier before I posted this, based on 50W which equated to 4.17 A. But I was not sure if this wattaged on the PS2 label (220-240 Vac 50/60hz 50w) was reffering to the input side of the supply.
I looked at a PC power supply, as the ones I have lying around are in the range of 24-28A on the +12v output - a slight overkill. The factors that put me off using the pc supplies was the size and extra noise generated. I thought that the PS2 supply was small enough and easy to build a small custom enclosure for it.
I might do a quick test later today if I have time with some sort of dummy load, or just hook it up and see what happens. If if fails I have nothing to lose except a little time and my pride as the monitor and power supply cost me nothing.
PS2 power supply was more than happy to handle it. When LCD monitor was in "no signal" mode current draw was 600mA and when it was running with brightness up etc I managed to get it to only to draw 2.7A