Watts is watts.
If you're drawing (for example) 50 watts.
110 VAC at ~~ .45 amps is 50 watts
48 VDC at ~~ 1 amp is 50 watts
24VDC at ~~ 2 amps is 50 watts
Looking at power consumption in watts eliminates having to figure out
what the voltage is.
It does not deal with conversions though. The aforementioned 110VAC
will surely involve some conversion efficiencies (or lack thereof).
Not having any specific information, I figure at least 10% loss each
time you convert. So if you're powering an AF24 on 110VAC, you can rule
of thumb estimate that the real amperage (on the 110 VAC is going to be
closer to .5 amps (instead of .45 mentioned above).
bp
<part15sbs{at}gmail{dot}com>
On 3/10/2015 4:23 PM, e...@kuhnke-international.com wrote:
Looking at the mimosa b5c, AF5X and other new low cost 256QAM radios
for an off grid solar application.
Will be used with the tycon dc-dc poet injectors.
Manufacturers, do you gave any real world figures for constant W load?
Are the figures for wattage in your datasheets as measured on the AC
or DC side of the POE injectors included with your radios?
At latitudes above 49 north, we need to calculate very precise
kilowatt hour per month figures to survive reliably through December
and January.
