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In Reply to: RE: Good Game Bernd posted by biffland on November 13, 2008 at 02:55:35
Bernd,
It seems to me the trick with batteries, or any alternative power supply, is getting the voltages to "turn on" in the right sequence.
When you used the battery, I am assuming a SLA type (sealed lead acid), did you use the biggest one you could find? What rating did you try? Many good things are said about the OPTIMA RED TOP batteries.
All batteries will slowly discharge, as you say, but a REALLY big one would give you much more margin (I know this is obvious to you, I am trying to get an idea of how long you were able to listen while the battery was still in the optimum range).
I have never heard anything good said about a dc-dc converter other than they do what they are supposed to do. I would think a really good shunt regulator would be the best approach for the CPU and for the sound card. I am not capable of designing such a thing. There is someone who is and when he finds time to get more involved in this he might.
Are you regulating the battery power? Please clarify.
When you used the battery power (I am assuming for the ATX header) when did you plug it in? Before or after turning on the ANTEC? Did you disocnnect the 12 volts leads from the ANTEC for the main power header? I am not clear on whether the ATX and the regular header are interconnected in any way?
I have had good experiences with using batteries for power supplies. Nothing is perfect, but they do many things very well.
Thanks for reviving this inquiry.
Bye,
Rick McInnis
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