Power Supply Sense Circuit Protection
Power Supply Sense Circuit Protection
(OP)
I have a fuel pump tester with a power supply that has a sense circuit for automatic voltage compensation. The power output is controlled by a remote switch to the power supply so there is no switch in the main circuit itself. My problem is that the sense circuit cannot be connected to the pump if the main power circuit is not energized. The only time that this could be an issue is if the fuse (15A) in the main circuit blows. Is there some device or relay that will connect the sense circuit only when the main circuit is energized? Thanks.
Power Supply:
http ://www.bkp recision.c om/product s/power-su pplies/169 4-1-30v-30 a-switchin g-dc-power -supply-wi th-remote- sense.html
Manual:
http://w ww.bkpreci sion.com/d ownloads/m anuals/en/ 1693_1694_ manual.pdf
Power Supply:
http
Manual:
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RE: Power Supply Sense Circuit Protection
1. Don't sense after the fuse
2. Don't use a fuse
I find it hard to believe a digital supply doen't have adjustable current limit? What exactly is the problem you are trying to prevent. What is wrong with the 5A supply current limit?
RE: Power Supply Sense Circuit Protection
Sensing before the fuse would work, but I'm seeing a drop of 0.1V across my current fuse which would partly defeat the purpose of the automatic voltage compensation.
RE: Power Supply Sense Circuit Protection
RE: Power Supply Sense Circuit Protection