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|Project Lead=User:Stealthbird97
|Project Lead=User:Stealthbird97
|Description=A low cost, high current power supply for Amateur Radio utilising a Server PSU.
|Description=A low cost, high current power supply for Amateur Radio utilising a Server PSU.
|Image=Psu_distro.png
}}
}}


Revision as of 00:30, 22 March 2017

Server PSU Based Radio Power Supply
Server PSU Based Radio Power Supply
Status In Progress
Project Lead User:Stealthbird97

Server PSU Based Radio Power Supply

A low cost, high current power supply for Amateur Radio utilising a Server PSU.


Designs are available at Github

Feature Ideas

  • Near 13.8VDC Output, 47 A (Exact specs to be determined)
  • Various Fan Control Options.
  • Distribution (2 Fused Anderson Powerpole connectors)

Tasks (To Do)

  • Design Interface (There are some that already exist, however most of this use ATX 6pin connectors or other less useful connectors - if you can actually find the designs)
  • Look into reducing EMI

Tasks (Completed)

  • Identify maximum voltage obtainable from supply.
    • OVP cuts in at about 13.9v, however OVP protection will trip if a 1A load is suddenly attached by 13.75v.
  • Modify PSU to boost voltage 12v->13.8v (or as close as possible)
    • This is possible using a resistor between the 12v sense-return pin and ground. 260Ohm resistor suggested.


Parts List

Complications

  • Original PSU was going to be a Dell POWEREDGE 2950 Redundant Power Supply however upon testing this supply, voltage would not rise above 12.2v and would drop to unusable voltages under load.

Notes/Resources


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