This unit from a Dell PowerEdge R320/R420 has +3.3V/22A and +5V/22A DC-DC converters (one for each rail) which is a good candidate for conversion to a 12V input ATX PSU.
Diagrams of required modifications regarding starting of the DC-DC converters is included with code at http://github.com/brycecherry75/ServerPSUtoATX which mentions required pullup/pulldown resistor placements and if required, simple level translators in the sketch.
How to test protections:
Overvoltage: Short (3.3V/5V)OVP pad to TEST_SGND
Undervoltage: Short (3.3V/5V)UVP to its respective TEST_(3.3V/5V) pad
Diagrams of required modifications regarding starting of the DC-DC converters is included with code at http://github.com/brycecherry75/ServerPSUtoATX which mentions required pullup/pulldown resistor placements and if required, simple level translators in the sketch.
How to test protections:
Overvoltage: Short (3.3V/5V)OVP pad to TEST_SGND
Undervoltage: Short (3.3V/5V)UVP to its respective TEST_(3.3V/5V) pad
Comment