Re: Batteries for PC/104

"Paul E. Bennett" wrote:

> > We have a small PC/104 device that performs some input logging. The
> > problem is we don't have any UPS system attached to it.
> > Does anyone know of any inexpensive (around $100) UPS systems for PC/104
> > ? We only need enough power to perform a proper shutdown.
>
> Does your PC104 card have any power supply on it at all? If not you should
> perhaps consider making your own UPS system. A DC-DC converter (or two)
> delivering the PSU voltages the PC104 card requires, a battery pack that
> has enough capacity to keep your system going for as long as you need it to
> and a battery float charger. You need to ensure that, when the mains supply
> fails, the charger is not responsible for any of the discharge.

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 ?

Wim

.

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