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[aprssig] info for TM-D710E in car

Rick Green rtg at aapsc.com
Wed Jan 23 20:09:18 UTC 2008


On Wed, 23 Jan 2008, Curt, WE7U wrote:

>
> The solenoid would have a delayed kick-in for the period when
> starting the engine.  Have it kick in after stable charge voltage is
> achieved.   Both batteries would get the full charge voltage that
> way, no diode drop.
   It looks like you've just written the design spec for the APO4!  Two 
relays, one with a zero timeout, and one with the selectable timeout. Use 
the same PIC and voltage sense circuitry to drive both logic loops.

-- 
Rick Green

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
                                   -Benjamin Franklin





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