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Old 27th March 2012, 03:05 AM   #1
JZatopa is offline JZatopa  United States
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Default 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.
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Old 27th March 2012, 04:04 AM   #2
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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.
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Old 27th March 2012, 04:36 AM   #3
JZatopa is offline JZatopa  United States
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I am talking about the sp-320-24.
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Old 28th March 2012, 05:20 PM   #4
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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.
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Old 28th March 2012, 05:39 PM   #5
gmarsh is offline gmarsh  Canada
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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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