Posted by Martin Riddle on June 22, 2008, 3:52 pm
> Looks like a basic push pull MSW, no low pass filtering or anything. I don't
believe this is what is in the actual device.
===================================================
Especially since its a bridge mode output.... how you gonna put that
into a single ended outlet?? I guess a 250W transformer could be
hidden in the box?
Well, a 180w Toroid is 2"x3.5" so yes it could be put in the box.
Another omission from the schematic is sense points on the output
to detect voltage.
Cheers
Posted by Martin Riddle on June 22, 2008, 3:54 pm
|
| > Looks like a basic push pull MSW, no low pass filtering or anything. I don't
believe this is what is in the actual
device.
| ===================================================
| Especially since its a bridge mode output.... how you gonna put that
| into a single ended outlet?? I guess a 250W transformer could be
| hidden in the box?
|
| Well, a 180w Toroid is 2"x3.5" so yes it could be put in the box.
| Another omission from the schematic is sense points on the output
| to detect voltage.
|
| Cheers
|
|
Posted by Eeyore on June 23, 2008, 4:35 am
Martin Riddle wrote:
> > Looks like a basic push pull MSW, no low pass filtering or anything. I don't
believe this is > what is in the actual device.
> ===================================================
> Especially since its a bridge mode output.... how you gonna put that
> into a single ended outlet?? I guess a 250W transformer could be
> hidden in the box?
> Well, a 180w Toroid is 2"x3.5" so yes it could be put in the box.
> Another omission from the schematic is sense points on the output
> to detect voltage.
And that's CRITICAL !
Graham
Posted by RW Salnick on June 22, 2008, 1:03 am
Vaughn Simon wrote:
>
>>With this animal, I could run my kegerator in the garage with (mostly) solar
>>without having to worry about warm beer on cloudy days. I have three 50 watt
>>solar panels to use, but I'm certain they won't keep up.
>
>
> The system you are describing would be hard on batteries, cycling them
> perhaps daily and wearing them out in a couple years or so unless they were
very
> high-end units.
That would depend on the setpoint for cutover to the AC mains now
wouldn't it? Certainly if the batteries were driven flat, you would be
correct. But no knowledgable person would do that, right?
bob
Posted by Vaughn Simon on June 22, 2008, 9:28 am
> That would depend on the setpoint for cutover to the AC mains now wouldn't it?
Not entirely. Battery storage always has a cost associated with it.
Batteries cycled daily (even if only a conservative amount) will not last as
long as batteries that are properly floated and rarely cycled. I saw the
figures here a while ago estimating the cost of deep-cycle battery storage
(assuming the electricity is free). As I recall, the answer was several cents
per KWh. You can easily make your own assumptions and do your own math, or
perhaps somebody can produce a reference.
>Certainly if the batteries were driven flat, you would be correct. But no
>knowledgable person would do that, right?
No. No knowlegable person whould do that, but is does sometimes happen by
accident. In any case, battery storage is not free! Batteries wear out and
their lifespan is determined partially by the number of effective cycles that
you put on them.
Vaughn
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