Acorn A7000 mainboard running on batteries

Here is a video of one of my current projects. Known as the A7Kp. Fully portable battery powered tablet style Acorn RISC OS computer. Work in progress.

This video just shows that it is posible to run an A7000 off a 7-12v battery pack. A custom made power regulator board supplies all of the required voltages. Amazingly the whole lot only draws 490mA @ 9.6v! (compact flash card included) This is due to the highly efficient ARM7500 CPU that the A7000 uses. The A7000 motherboard requires +5v, -12v and +12v to run.

My regulator board uses these switching regs:
LM2576 for the +5v (a UTC P3596 will work)
PTN78000A (set with a 2k resistor) for -12v
PTN04050C (set with a 1.3K resistor) for +12v

Thanks for watching stay tuned! New camera soon for HD videos.

Category:

Science & Technology

Tags:

• yt:stretch=16:9
• Acorn
• Computer
• RISC
• OS
• 3.60
• portable
• A7000
• Risc
• PC
• A3000
• ARM

[TheSocialTerrorist]

yeh this is amazing... i love to know the regulator board schematics for this and how its connected up

[richardmaudsley77]

That's really cool.