On 7/27/11 7:02 PM, Tony V wrote:
An advertisement in QST magazine caught my eye and I wonder if some one
has used something similar to this in gliders(we don't need 25 Amps at
12 Volts):
http://www.mfjenterprises.com/Produc...ctid=MFJ-4416B
The idea is to keep the voltage supplied to your electrics constant even
if the battery voltage drops to as low as 9 Volts (in the above example).

Tony LS6-b "6N"

Tony

With modern avionics/electronics you really should not need this. Modern
radios, transponders, etc. have built in switch mode power supplies that
effectively do the same as this device does, but usually more
efficiently. These approaches are really only something to consider if
you have some legacy piece of electronics that is very sensitive to
voltage -- and often in those cases a bigger battery (if possible) is a
better solution.

Another minor downside of these type devices is the apparent sudden loss
of power - but that's solved by monitoring the raw battery voltage.

Darryl