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Old August 28th 05, 10:37 PM
Denton
 
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Default 12 vdc to 120 vac inverter recommendation

Since I already have a station power supply, with a pair of deep cycle 12
vdc batts floating across a 35 amp power supply with a blocking diode in the
dc plus lead, I am thinking of getting a 12 vdc to 120 vac inverter on the
battery output...to feed two desktop pc's plus two lcd monitors.

For the past couple of years I have used an APC 1500 ups to feed both pc
workstation and also am thinking of just getting another ups to feed the
second workstation...if an inverter proves to be now the best way to go.

Before I re-invent the wheel, am wondering if anyone has done this
before...thanks


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Old August 28th 05, 11:37 PM
Robert Kubichek
 
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I would use a separate APC for each computer, and use the APC to charge
the batteries, also, they will switch back to AC once the power is
restored in time, or when you start up your backup generator, plus they
supply better filtering than most dc to ac converters, unless you get
one with a true sine wave output.



Denton wrote:
Since I already have a station power supply, with a pair of deep cycle 12
vdc batts floating across a 35 amp power supply with a blocking diode in the
dc plus lead, I am thinking of getting a 12 vdc to 120 vac inverter on the
battery output...to feed two desktop pc's plus two lcd monitors.

For the past couple of years I have used an APC 1500 ups to feed both pc
workstation and also am thinking of just getting another ups to feed the
second workstation...if an inverter proves to be now the best way to go.

Before I re-invent the wheel, am wondering if anyone has done this
before...thanks



--
Bob N9LVU
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Old August 31st 05, 10:16 PM
Yodar
 
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Denton wrote:
Since I already have a station power supply, with a pair of deep cycle 12
vdc batts floating across a 35 amp power supply with a blocking diode in the
dc plus lead, I am thinking of getting a 12 vdc to 120 vac inverter on the
battery output...to feed two desktop pc's plus two lcd monitors.

For the past couple of years I have used an APC 1500 ups to feed both pc
workstation and also am thinking of just getting another ups to feed the
second workstation...if an inverter proves to be now the best way to go.

Before I re-invent the wheel, am wondering if anyone has done this
before...thanks


Beware of the spike at the begining of the square wave from the
inverter...I have heard of people killing their laptops because of it.
I'd run the inverter thru your UPS in hopes it would filter or nullify
that peak which one fellow measured at 600 volts here(for a millisecond
or less)
Yodar

Yodar
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