On 3/29/2013 Jim Lux wrote:
...snip...
> There's two strategies I've used:
> 1) 24 or 48V and DC/DC converters (lots of bricks available, but not all
> are good for RFI.). Treat the supply as a constant current source and
> use wide input range converters. Typical converters have a 1:2 or 1:3
> range (e.g. 12-36 V)
...snip...
Yes, probably a good idea. Even cars are moving to higher voltages. If you
design the end items for the buss correctly, you could use anything in the
range - Call it 13.8-48 volts (keep it below the 50 volt 'high voltage' limit).
Again, I think the control signal could be Zigbee (which should work in high RF
environments, is a fairly well known standard) and with, say the option of a
Dallas/Maxim 1-wire type buss.
BTW folks, in case you don't follow it, Zigbee is probably what your local
'smart' power meter (and water meter etc) is using/going to use. Ultra low
power demand to the radio, good signals, and they can setup as a mesh network
--
--
Charlie
www.baysidephoto.com
www.thegallos.com
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