[Mobile-Portable] 28-volt power?

[Earl Needham]

At 04:10 PM 8/19/2007, Randy wrote:
>Of course there are lots of 120 vac inverters around and I was wondering
>about using one of those to power a 28-volt switching power supply.  I
>realize many of those low-cost inverters do not produce very good sine waves
>but would this be a big problem if used just for driving a switching power
>supply?  Also, I can imagine all sorts of potential RFI problems with
>something like this but I will deal with that if/when the time comes.
>
>Anyway, any ideas?

         If you go this route, you're gonna need a BIG 120 VAC 
inverter -- I'd suggest at least 800 watts and more likely, if I was 
building this rig, I'd go for 1500 watts or more.  Reason being all 
the power used up heating the heatsinks before you ever power that 
big amplifier.

         7 3
         Earl

KD5XB -- Earl Needham
Clovis, New Mexico DM84jk
http://groups.yahoo.com/group/cw_bugs
Quoting from the Coast Guard: ZUT