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13.8V (server psu based) power supply - 460W with XT-90 connectors
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460W 13.8V power supply with 5 XT-90 connectors and V/A/W meter. Based on server power supply HP-HSTNS-PL14.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Power supply:
- based on cheap (bought used) server power supply HP-HSTNS-PL14
- with output voltage raised from 12V to 13.9V (including increasing over voltage protection threshold) based on description by SP4UBW: https://drive.google.com/file/d/170oBM0Qkuk-mvYwnmUb5sL89MSgW5x9Z/view (PL). Skip this if you just want 12V.
- 5 x XT-90 sockets (https://aliexpress.com/item/32832063718.html)
- power on/off switch (https://aliexpress.com/item/33055369698.html) that connects 330Ω resitor between pins 1-4 of psu socket (to turn psu on)
- meter (PCB from https://aliexpress.com/item/1005005161239649.html with 12AWG wires replaced with thicker ones (10mm2 in my case))
- few M3 screws of various types and lengths; short 3mm grew scrubs for locking XT90 connectors are also handy
- 10mm2 wires inside
- TPU feets
Fusion source file included.
Note: playing with PSU can be very, very dangerous due to high voltage inside!