the fill light circuit of the chicken farm(1)

Published:2011/7/15 21:54:00 Author:Ariel Wang | Keyword: fill light, chicken farm | From:SeekIC

When in daylight,as the sunlight is strong,the resistance of RG is low.The pin-2 and pin-6 output high level.The pin-3 outputs low level.The pin-1 of IC4 outputs low level.V is stopped.K1 and K2 are not pulled in.The floodlights EL1～ELn are not lighted.In the rainy and cloudy day(in the day),the resistance of RC increases.The pin-2 and pin-6 of IC3 output low level.The pin-3 outputs high level.IC4 outputs high level as the voltage of non-inverting input end(pin-3) is higher than the voltage of inverting input end(pin-2).V is conducted.K1 is pulled in.The normally open contacts of K1 are connected.K2 is conducted to pull in.The floodlights EL1～ELn are conducted to be lighted.It provides light for the chicken house.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Automotive_Circuit/the_fill_light_circuit_of_the_chicken_farm1.html

Print this Page | Comments | Reading(3)