Hi,
I was given an old audio processor but it doesn't have a psu.
It requires +/-12v DC, and 5V DC. Unlike most computer psu's a high current -12v rail is required.
I can't find an off-the-shelf PSU that will provide exactly what I need so I was wondering if I could use multiple PSU's to do the job?
So If I have 2 x 12v psu's and connect the + from one to the - of the other that gives me the +/-12v I require.
I have another 5v psu I can use, so should I connect all the 0v points together?
Here is a rough diagram that will hopefully explain what I mean:
Please let me know what you think.
I was given an old audio processor but it doesn't have a psu.
It requires +/-12v DC, and 5V DC. Unlike most computer psu's a high current -12v rail is required.
I can't find an off-the-shelf PSU that will provide exactly what I need so I was wondering if I could use multiple PSU's to do the job?
So If I have 2 x 12v psu's and connect the + from one to the - of the other that gives me the +/-12v I require.
I have another 5v psu I can use, so should I connect all the 0v points together?
Here is a rough diagram that will hopefully explain what I mean:
Please let me know what you think.
I think the middle part on the bottom side has the wrong polarity: -12 V is connected to the + terminal and 0 V to the - terminal.
Are you sure your supplies have floating outputs, or are there ground or earth connections hidden somewhere that short all negative terminals of the supplies?
Are you sure your supplies have floating outputs, or are there ground or earth connections hidden somewhere that short all negative terminals of the supplies?
Some power supplies have floating outputs, and some do not.
Be certain of what you have.
If the supply does not float its outputs, it can only be connected as a positive supply.
Be certain of what you have.
If the supply does not float its outputs, it can only be connected as a positive supply.
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