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I know that its possible to connect a couple of these in series to get a higher voltage, but thats about where my knowledge in this subject ends. Anyone care to enlighten me about this?
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PC Power Supplies
They are just like batteries, connect them in series to add voltage.
Though, if you are using computer power supplies, you need to separate GND from 0v. -
PC Power Supplies
To separate the GND from 0V sounds highly familiar, and was something needed to prevent a short circuit?
But I cannot remember anything more than that, how do I actually do this?Comment
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PC Power Supplies
Correct.
How to do it propably depends on the design of the power supply, and Im not sure whether you should do this if you dont know what belongs to GND, and what belongs to 0V.
Anyway, this is what I did (after checking the circuits):
Where the circuit board is screwed into the chassis, there is cupper on the underside of the board, which (in my case) makes the connection between GND(chassis) and 0V(circuit board). I simply removed it with a knife.Comment
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PC Power Supplies
So both the GND and 0V are earthed to the chassis? Which means that you need to isolate the 0V from the ground as well?
But why do you do this? I can see the obvious hazard of risking that two of the power supply chassis are connected together, but is there another reason?Comment
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PC Power Supplies
Oh, sorry for mixing things up, GND=ground=chassis=ground pin in power cord
That is the reason. The obvious solution of connecting the power supplies to ungrounded outlets is not recommended, since the ground may be used for some high-voltage stuff, for example dump interference from power lines.Comment
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PC Power Supplies
Cheers for that! Thats all the information I needed.Comment
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