ATX power adaptors for the Amiga and other retro computers. Allows easy access to an ATX replacement supply
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ATX_PIC_SW_V1.zip
LICENSE
Multipurpose-ATX-gerbers.zip
Multipurpose-ATX.brd
Multipurpose-ATX.sch
Multipurpose-Bigbox-ATX-PCB.png
Multipurpose-Bigbox-ATX-SCH.png
README.md
Small-form-factor-ATX-gerbers.zip
Small-form-factor-picoPSU-PCB.png
Small-form-factor-picoPSU-SCH.png
picoPSU-ATX_V2.brd
picoPSU-ATX_V2.sch

README.md

ATX_adaptors

ATX power adaptors for the Amiga and other retro computers. Allows easy access to an ATX replacement supply. The +5V, +12V and -12C supplies are available on screw terminal connectors for easy retro fit. The Multi-purpose design can also supply -5V, the 50/60Hz tick signal and a Power_good signal.

The schematics and PCB files are included here in Eagle CAD format, V7 or later is required to open the files.

The adaptors use a Microchip PIC10F200 microcontroller to debounce the switch and to turn on/off the power. The same micro is used to provide a 50/60Hz 'tick' signal. Accuracy was ~0.5Hz using internal oscillator. A Tag-connect MCP2030 is required to program the device. The ATX_PICV1.zip file has the software. MplabX and XC8 compiler required to rebuild. A hex file is within the archive.

You can buy ready made PCBs from here: http://www.ianstedman.co.uk/Sales/sales.html