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Author Topic: 2 PSU's How to connect?  (Read 11020 times)
beekeeper
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November 24, 2012, 11:01:12 PM
 #21

Usually switching power supplies don't work or work very bad if you connect their + pin(s) together (if they work, one will win the war, unless you connect their bypass/whatever feedback pins together). You should have only ground (black wires) connected, anything yellow/red/orange should never meet in same board ( you said partly ).

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monstrs (OP)
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November 26, 2012, 06:17:36 AM
 #22

Usually switching power supplies don't work or work very bad if you connect their + pin(s) together (if they work, one will win the war, unless you connect their bypass/whatever feedback pins together). You should have only ground (black wires) connected, anything yellow/red/orange should never meet in same board ( you said partly ).

Yes, from the beggining both psu's was connected with + , now when the minuses is connected, everything works fine.
abracadabra
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November 26, 2012, 04:18:37 PM
 #23

Usually switching power supplies don't work or work very bad if you connect their + pin(s) together (if they work, one will win the war, unless you connect their bypass/whatever feedback pins together). You should have only ground (black wires) connected, anything yellow/red/orange should never meet in same board ( you said partly ).

Yes, from the beggining both psu's was connected with + , now when the minuses is connected, everything works fine.



This would have extremely helpful to have known earlier.

Quote from: abracadabra

I'm pretty sure you have connected something incorrectly.

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