T Tom5339 New Member Mar 21, 2008 #1 Looking for ideas on a curcuit that I can monitor the output of a 5 volt DC sensor. It has to be adjustable, when the sensor reads a set voltage or higher it turns on a 12 volt automotive relay. Anny ideas would be greatly appreciated.
Looking for ideas on a curcuit that I can monitor the output of a 5 volt DC sensor. It has to be adjustable, when the sensor reads a set voltage or higher it turns on a 12 volt automotive relay. Anny ideas would be greatly appreciated.
Hero999 Banned Mar 22, 2008 #3 I'd use the LM311 myself as it's output can directly drive small relay. Some good sites with information on comparators. **broken link removed** **broken link removed** http://www.google.com/search?num=100&hl=en&client=opera&rls=en&hs=LJ5&q=comparator&btnG=Search
I'd use the LM311 myself as it's output can directly drive small relay. Some good sites with information on comparators. **broken link removed** **broken link removed** http://www.google.com/search?num=100&hl=en&client=opera&rls=en&hs=LJ5&q=comparator&btnG=Search
ericgibbs Well-Known Member Most Helpful Member Mar 22, 2008 #4 hi, Look at this forum thread. https://www.electro-tech-online.com/threads/need-to-sense-and-alarm-4vdc.37556/
hi, Look at this forum thread. https://www.electro-tech-online.com/threads/need-to-sense-and-alarm-4vdc.37556/