On Tue, 28 Feb 2012, Lawrence K. Chen, P.Eng. wrote:
I've been thinking of doing something similar....for my ham station.
Get a big deep cycle battery and only have a low current charger on it.
I've done this quite a bit, and since the radios have very low duty cycles
it works very well.
If you use a automotive battery, be careful about venting the hydrogen
to the outside properly, go with a gel-cell or similar and you won't have
this problem. you can probably get away with one of those 'battery minder'
maintiners to keep the battery topped off.
David Lang
I haven't done much ham radio in a long time. I guess I became less active
around the time dialup internet became readily available. Since I one of the
main modes I played around with was NOS.
But, trying to get back in to...except I found that the wiring in my place
isn't really suited for it. There's basically only two electrical
circuits....one has my wall of home electronics on it, and the other has a ton
of computers on it.
I can turn my 60A power supply on, no problem...but key up full power....ends
with all my UPSs beeping at me.
As I think of it....while my previous home was older, it had a newer addition
on it, and I did run some extra circuits (ugly/dangerous/exposed) to run my
setup. Though I kind of thought it was because of my old laser printer, a
Xerox 4045.
I've been thinking about this issue for home use, especially with
Solar
power.
currently you take the DC input (solar), run it through an inverter
to
feed it to a UPS, to convert it to DC (to charge the batteries), to
convert back to AC to run to the power supply in the PC to convert
back to
various DC levels to use inside the machine.
While AC->DC converters are ~90% efficient, DC -> AC inverters are
less
so, topping out around 70-80% efficiency.
It seems like it should be possible to do a lot better.
David Lang
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