Server PSU Based Radio Power Supply: Difference between revisions

Revision as of 21:37, 9 March 2017

Server PSU Based Radio Power Supply
[[File:\|250px\|Server PSU Based Radio Power Supply]]
Status	New
Project Lead	User:Stealthbird97

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

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

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.

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 under load.

@@ Line 11: / Line 11: @@
 * Wattmeter
-=== Tasks ===
+=== 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)
-* Look into reducing EMI
+** This is possible using a resistor between the 12v sense-return pin and ground. 260Ohm resistor suggested.
 === Parts List ===