Re: Batteries for PC/104

Wim Godden wrote:

> I'm using a standard 230VAC-to-5VDC power supply that I hook up to the
> PC104 CPU board.
> Basically, what you're suggesting is putting a standard battery (for
> example a 12V) in between and thus using a 230VAC-to-5VDC, then the
> battery, then a 12VDC-to-5VDC converter ?

Almost right. Use a 230V to 12V PSU/Charger (to float a 12V battery) then
the 12V DC to 5V DC converter which will power your board. I know it seems
a bit strange but there is a huge loss of efficiency using a UPS system
that down-converts the 230V to a DC battery voltage then convert the DC
battery voltage to 230V AC. Your average laptop does things the way I
suggest. Yes, you will need to pay a little more attention to the
PSU/Charger item so that the battery is properly looked after. The DC DC
converters for after the battery are fairly common place these days.

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