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JZatopa 27th March 2012 04:05 AM

Meanwell SMPS question
Could someone confirm this for me?

It is possible to take 2 meanwell 24V power supplies and wire them to make a +24/-24 power supply. With that power supply I could power 2 amp boards as long as their current draw is less then the combined curent output of the SMPS is.

sofaspud 27th March 2012 05:04 AM

This is potentially damaging, so you should be more specific. What Meanwell model do you have in mind? With such a bipolar supply, there is no "combined current output." The output is the same as either supply itself.

JZatopa 27th March 2012 05:36 AM

I am talking about the sp-320-24.

Osvaldo de Banfield 28th March 2012 06:20 PM

Some SMPS have a Y cap (between 1 and 10nF) from -bus to earth, and each out t earth, or -out to earth and or a line filter with a Y cap from L and N to earth or to -out. If earth wire isnīt used, the amp can get hum from this caps.

gmarsh 28th March 2012 06:39 PM

I can say for sure that SP-320-48 has a floating output, I've used it for a -48V supply.

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