power_supply.txt · Last modified: 2018/12/30 00:13 by 127.0.0.1 

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power_supply [2006/11/01 17:32] hermanpower_supply [2006/11/28 20:40] herman
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 +Build my own 'lab' power supply from an old ATX pc version.\\
 +Basic idea is to strip all the wires and add plugs to the case to plug in banana wires.
 +
 [[http://www.wd5gnr.com/power.htm|Original idea]] [[http://www.wd5gnr.com/power.htm|Original idea]]
  
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 ====== Plan ====== ====== Plan ======
  
-  - How is ground connected?+  - How is ground connected? (done)
     * 3,5,7,13,15,16,17 all interconnected or separate?     * 3,5,7,13,15,16,17 all interconnected or separate?
       * How should this stuff work?       * How should this stuff work?
       * All interconnected and to ground (metal case), easy and logical!       * All interconnected and to ground (metal case), easy and logical!
-  - Test voltage on different pins.+  - Test voltage on different pins. (done)
     * +3,3 v: 1, 2 and 11     * +3,3 v: 1, 2 and 11
     * +5 v: 4, 6, 19 and 20     * +5 v: 4, 6, 19 and 20
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     * -12 v: 12     * -12 v: 12
     * +5 v standby (max 10mA): 9     * +5 v standby (max 10mA): 9
-  - Design case and wiring layout+  - Design case and wiring layout (done)
     * Switch     * Switch
     * Wire terminals     * Wire terminals
-  - Think of ways to connect to existing projects. +  - Think of ways to connect to existing projects. (done) 
-    * TTY level converter +    * TTY level converter (done) 
-    * MSNTV +    * MSNTV (done) 
-  - Purchase/scavenge parts +  - Purchase/scavenge parts (done) 
-    * Switch +    * Switch (skipped) 
-    * Terminals +    * Terminals (bought) 
-    * Rubber feet +    * Rubber feet (bought) 
-  - Build using bought/scavenged parts. +  - Build using bought/scavenged parts. (done) 
-    * Cut holes in case +    * Cut holes in case (done) 
-    * Attach terminals and such +    * Attach terminals and such (done) 
-    * Shorten wires+    * Shorten wires (done)
   - Profit!   - Profit!
   - Optional   - Optional
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       * temperature based or manual :)       * temperature based or manual :)
  
 +Version 1.0 is done!\\
 +It has 8 'banana' plugs, +3,3v +5v, -5v, +12v and -12v.
 +The negative voltages are not precise and differ quite a bit... Not really a problem :)
 +{{:powersupply.jpg|Power supply}}
 

Author Herman Kopinga. This work is licensed under a Creative Commons License.
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