[GreenKeys] ASR33 autostart

Jeffrey D Angus jdangus at att.net
Thu Jul 12 23:45:03 EDT 2012


On 7/11/2012 7:28 PM, Ken Schwieker wrote:
> Sounds like a fairly simple circuit could accomplish this if other
> options don't pan out.  Loop current sense into a resettable timer
> connected to a relay to turn the motor on and off.
Sounds like a job for our ubiquitous 555 timer set up as a re-trigger 
able a stable
one shot with an opto coupler on the loop side and a relay to drive the 
motor circuit.

Jeff-1.0
wa6fwi
.


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