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Can multiple outputs of an SMPS be ganged serially ?

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Parthiban Selvaraj

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My SMPS has +/- 5 V +/- 12 V outputs . can I gang these outputs in series so I get 17 V ?
 

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Almost certainly not. Standard SMPSs never have isolated outputs, which is what they would need to be. The outputs are already 'joined' at the zero (ground) and trying to join them in any other way would not be good!
 
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Er.abdulrehman said:
No, you can't, and why you need 17V?
Click to expand...

I have an evaluation kit which has to be tested at 15 VDC, 8A to 60 VDC 2A and in between ranges. I need a power supply which can supply 8A/6A/4A at 15 /20/30 V DC ranges. I thought SMPS can deliver the current. So I am trying to get 17 VDc ( 12 + 5 ) by ganging.
Infact the input power can be greater than 120 watts.
 

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